Vacuum generator OVEM - Festo USAOVEM Festo – OVEM – 1702e English 5 1 Product description 1.1...
Transcript of Vacuum generator OVEM - Festo USAOVEM Festo – OVEM – 1702e English 5 1 Product description 1.1...
en Operating
instructions
8068021
1702e
[8068023]
Vacuum generator
OVEM
OVEM
2 Festo – OVEM – 1702e
Original instructions
OVEM-DE
Identification of hazards and instructions on how to prevent them:
Warning
Hazards that can cause death or serious injuries
Other symbols:
Note
Material damage or loss of function
Recommendations, tips, references to other documentation
Text designations:
� Activities that may be carried out in any order
1. Activities that should be carried out in the order stated
– General lists
� Result of an action/References to more detailed information
OVEM
Festo – OVEM – 1702e English 3
1 Product description 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.1 Structure 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 Characteristics 6. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2 Security 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.1 Use for intended purpose 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.2 General safety information 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
2.3 Range of applications and certifications 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3 Function and application 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.1 Function overview 9. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.2 Switching functions 10. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.3 Valve control 11. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.4 Air-saving function 13. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.5 Optimisation of the transport time 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.6 Monitoring and diagnostics 14. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.7 Measured variables 15. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
3.8 Teach function (Teach-In) 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4 Installation 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.1 Mechanical 17. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.2 Pneumatic 19. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4.3 Electric 20. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5 Commissioning 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.1 Commissioning vacuum suction nozzle 23. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
5.2 Set the intensity of the ejector pulse 24. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6 Operation 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.1 Setting the ejector pulse duration 25. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2 Configure the switching outputs 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.1 Display switching output settings 26. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.2 Setting the switching characteristics of a switching output 26. . . . . . . . . . . . . . . .
6.2.3 Set diagnostic message channel 27. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.4 Teaching of switching points 28. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.2.5 Deleting the minimum or maximum pressure value 28. . . . . . . . . . . . . . . . . . . . . .
OVEM
4 Festo – OVEM – 1702e English
6.3 Configuring the evacuation and air supply times 29. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3.1 Setting the limit values for the evacuation and air supply times 29. . . . . . . . . . . . .
6.3.2 Teaching the evacuation and air supply time 29. . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.3.3 Displaying the evacuation and air supply times 30. . . . . . . . . . . . . . . . . . . . . . . . .
6.3.4 Deleting the evacuation and air supply times 30. . . . . . . . . . . . . . . . . . . . . . . . . . .
6.4 Operating manual override 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.4.1 Mechanical manual override 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.4.2 Electrical manual override 31. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.5 Activating security code 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.6 Switching the air saving function on or off 32. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
6.7 Restore factory settings 33. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7 Error messages and fault clearance 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.1 Diagnostic levels 34. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.2 Error messages and error codes 35. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
7.3 Malfunctions 37. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
8 Disassembly 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
9 Maintenance and care 38. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
10 Technical data 39. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 Appendix 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.1 Graphic display and LCD displays 41. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.2 Operating statuses and menu structure 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.2.1 Meaning of symbols for representing the menu structure 45. . . . . . . . . . . . . . . . .
11.2.2 RUN mode 45. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.2.3 SHOW mode 46. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.2.4 EDIT mode 47. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11.2.5 Teach mode 48. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
OVEM
Festo – OVEM – 1702e English 5
1 Product description
1.1 Structure
1 2 3 4
aJ
aA
aB
8
9
5 6
7
1 Ejector pulse solenoid valve (Eject)
2 Vacuum solenoid valve
3 Mechanical manual override of the solenoid
valves
4 Supply port (1)
5 Exhaust port / silencer (3)
6 Vacuum connection (2)
7 Housing with mounting holes
8 Slide for changing the filter element
9 Filter housing with inspection window
aJ Flow control screw for adjusting the ejector
pulse
aA Vacuum sensor with LCD display and
operating keys � Fig. 13
aB electrical connection
Fig. 1 Control sections and connections
OVEM
6 Festo – OVEM – 1702e English
1.2 Characteristics
Characteristic Code Meaning
Vacuum suction nozzle OVEM Vacuum suction nozzle with vacuum solenoid valve ON/OFF
and electric manual override
Nominal width of laval
nozzle
-05 0.45 mm
-07 0.7 mm
-10 0.95 mm
-14 1.4 mm
-20 2.0 mm
Vacuum type -H high vacuum
-L high suction volume
Housing size / width -B 20 mm wide, ISO standard
-BN 20 mm wide, NPT
Pneumatic ports -QS all ports with QS push-in fittings (-B-QS)
all ports with QS push-in fittings inch (-BN-QS)
-QO Supply / vacuum port with QS push-in fittings, exhaust port
with open silencer (-B-QO)
Supply / vacuum port with QS push-in fittings inch, exhaust
port with open silencer (-BN-QO)
-GN all ports with female G thread (-B-GN)
all ports with female NPT thread (-BN-GN)
-GO Supply / vacuum port with female G threads, exhaust port
with open silencer (-B-GO)
Supply / vacuum port with female NPT threads, exhaust port
with open silencer (-BN-GO)
-PL prepared for manifold rail, vacuum and exhaust port with QS
push-in fittings (-B-PL)
prepared for manifold rail, vacuum and exhaust port with QS
push-in fittings inch (-B-PL)
-PO prepared for manifold rail, vacuum port with QS push-in
fittings, exhaust port with open silencer (-B-PO)
prepared for manifold rail, vacuum port with QS push-in
fittings inch, exhaust port with open silencer (-BN-PO)
Normal position of the va
cuum generator
-ON NO, normally open (vacuum generation)
-OE NO, normally open (vacuum generation) with ejector pulse
-CN NC, normally closed (no vacuum generation)
-CE NC, normally closed (no vacuum generation) with ejector pulse
Electrical connection -N Plug M12 (5-pin)
OVEM
Festo – OVEM – 1702e English 7
Characteristic MeaningCode
Vacuum sensor -1PD 1 switching output PNP, 2 switching input PNP, with display
-2P 2 switching outputs PNP
-2N 2 switching outputs NPN
-PU 1 switching output PNP, 1 analogue output 0 … 10 V
-PI 1 switching output PNP, 1 analogue output 4 … 20 mA
-NU 1 switching output NPN, 1 analogue output 0 … 10 V
-NI 1 switching output NPN, 1 analogue output 4 … 20 mA
Alternative vacuum display - bar (-B), InHg (-BN)
-B Bar
-W InH2O
-H InHg
Tab. 1 Overview of variants
2 Security
2.1 Use for intended purpose
The vacuum generator type OVEM is designed for generating a vacuum.
2.2 General safety information
– The product may only be used in its original status without unauthorised modifications.
– Only use the product if it is in an excellent technical status.
– Use the product only inside buildings.
– Take into consideration the ambient conditions at the location of use.
– The product is intended for use in industrial environments. The product can generate high frequency
interference, which may make it necessary to implement interference suppression measures in
residential areas.
– Observe the specifications on the product labelling.
– Comply with all applicable national and international regulations.
– Observe the local specifications for environmentally friendly disposal.
OVEM
8 Festo – OVEM – 1702e English
2.3 Range of applications and certifications
Note
CE declaration of conformity and certificates�� www.festo.com/sp
In connection with the UL marking on the product, the information of this section is also applicable for
compliance with the certification conditions of Underwriters Laboratories Inc. (UL) for the U.S.A. and
Canada.
UL approval information
Product category code QUYX (USA)
QUYX7 (Canada)
File number E322346
Considered standards UL 61010-1
C22.2 No.61010-1
UL mark
Tab. 2 UL approval information
Only for connection to an NEC/CEC Class 2 supply.
Unit shall be supplied by a power source which complies with the requirements of a limited-energy
circuit in accordance with IEC/EN/UL/CSA 61010-1 or a Limited Power Source (LPS) in accordance with
IEC/EN/UL/CSA 60950-1 or IEC/EN/UL/CSA 62368-1 or a Class 2 circuit in accordance with NEC or
CEC.
OVEM
Festo – OVEM – 1702e English 9
3 Function and application
3.1 Function overview
The OVEM is a vacuum suction nozzle with digital transmission of setpoint and actual value as well as
diagnostics and parameterisation options. Configuration is carried out via the operating keys. The dia
gnostic messages are shown in the display.
Function OVEM-...-2P/2N
/PU/PI/NU/NI
OVEM-...-1PD
Control of the compressed air supply with 2 valve functions
��Chapter 3.3
x x
Air-saving function �� Chapter 3.4 x x
Electrical and mechanical manual override ��Chapter�6.4 x x
Monitoring of the vacuum build-up through integrated pressure
sensor and advanced monitoring functions ��Chapter 3.6
x x
Auto-Drop Function:
generation of an automatic eject pulse for accelerated vacuum
purging and safe set-down ��Chapter�3.3
x -
Generation of an eject pulse via a control signal at the
digital switching input (ejection) DI2
- x
Tab. 3 Function overview
OVEM
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3.2 Switching functions
The switching outputs can be configured via the switching functions.
The switching logic of the switching outputs can be configured as normally open (NO) or normally
closed (NC).
The switching mode of the switching outputs can be determined as threshold value or window compar
ator.
With active air-saving function, the switching mode is determined as the threshold value
comparator by switching output A.
Threshold value comparator Normally open (NO) Normally closed (NC)
Switching function
– 1 Switchpoint (SP1)
Teach mode1):
– 2 Teach-in points (TP1, TP2)
– SP1 = ½ (TP1+TP2)p
1
0
HY
OUT
SP1TP1 TP2
p
1
0SP1
HY
OUT
TP1 TP2
1) TP1 = minimum pressure value, TP2= maximum pressure value, independent of the Teach sequence
Tab. 4 Threshold value comparator: setting of switchpoint SP1 and hysteresis HY
Window comparator Normally open (NO) Normally closed (NC)
Switching function:
– 2 switchpoints
(SP1, SP2)
Teach mode1):
– 2 Teach-in points (TP1, TP2) TP1=SP1
HY HY
p
1
0
OUT
TP2=SP2 TP1=SP2
p
1
0
OUT
HY HY
TP2=SP2
1) TP1 = minimum pressure value, TP2= maximum pressure value, independent of the Teach sequence
Tab. 5 Window comparator: setting of switchpoints SP1, SP2 and hysteresis HY
OVEM
Festo – OVEM – 1702e English 11
Code Switching output A Switching output B Switching inputs
-1PD Switching output
Positive switching
Pressure sensor output A
– 2 switching inputs
positive switching
-2P Switching output
Positive switching
Pressure sensor output B or
Diagnostic message channel
1 switching input
Positive switching
-PI Analogue output 4 ... 20 mA
Vacuum
-PU Analogue output 0 … 10 V
Vacuum
-2N Switching output
Negative switching
Pressure sensor output A
Switching output
Negative switching
Pressure sensor output B or
Diagnostic message channel
1 switching input
Negative switching
-NI Analogue output 4 ... 20 mA
Vacuum
-NU Analogue output 0 … 10 V
Vacuum
Tab. 6 Switching output and switching input variants
3.3 Valve control
Control of the ejector pulse
– Auto-Drop Function (except OVEM-...-1PD)
The ejector pulse is generated after the signal change “Suction”. The duration of the ejector pulse can
be set ��Chapter 6.1.
– Signal-controlled ejector pulse (only OVEM-...-1PD)
The ejector pulse is generated via a control signal at the digital switching input (ejection) DI2. The eject
or pulse can also be used to blow dust off the workpiece surface. The duration of the ejector pulse can
be set via the duration of the control signal at the digital switching input (ejector) DI2.
OVEM
12 Festo – OVEM – 1702e English
Depending on the input signal, the vacuum solenoid valve or the ejector pulse solenoid valve is con
trolled.
Valve function OVEM-...-CE Valve function OVEM-...-CE-...-1PD
1
3
4
5
Auto-Drop
tej
1
2
3
4
5
Valve function OVEM-...-OE Valve function OVEM-...-OE-...-1PD
1
3
4
5
Auto-Drop
tej
1
2
3
4
5
1 Control signal at the digital switching input
(suction) DI1
2 Control signal at the digital switching input
(ejection) DI2 (only OVEM-...-1PD)
3 Switching position of vacuum solenoid valve
4 Switching position of ejector pulse solenoid
valve
5 Vacuum connection (2)
tej Duration of ejector pulse
Fig. 2 Valve control switching behaviour
OVEM
Festo – OVEM – 1702e English 13
3.4 Air-saving function
The air-saving function reduces the air consumption of the vacuum suction nozzle OVEM-...-CE / -OE
during the evacuation phase.
50 mbar(fixed)
12
3
DI1
DO1
4
t
t
t
1 Hysteresis (HY)
2 Threshold value “Switch off suction”
= switchpoint (SP1)
3 Threshold value “Switch on suction”
4 Reset point (RSP1)
Fig. 3 Mode of operation of the air-saving function
If the pressure value has reached the switchpoint SP1 2, vacuum generation is deactivated. An intern
al check valve prevents the reduction of the vacuum. Vacuum can still be reduced slowly due to leakage
in the overall system (e. g. due to rough workpiece surfaces). To reduce energy consumption, vacuum
generation is not switched on until the lower threshold value 3 is fallen below.
The air saving function is activated in the factory.
If air-permeable workpieces are transported, the vacuum is reduced more quickly which would cause
the vacuum generation to switch unnecessarily often. In this case, it makes sense to deactivate the
air-saving function ��Chapter 6.6.
OVEM
14 Festo – OVEM – 1702e English
3.5 Optimisation of the transport time
For variants with 2 switching outputs (OVEM-...-2P/-2N/-PU/-PI/-NU/-NI), the transport time can be
optimised by using switching output Out B.
The vacuum required for the transport is controlled by switching output Out A. To optimise the trans
port time, the workpiece can e. g. be gripped by the usable vacuum while the vacuum is building up.
The minimum usable vacuum required is controlled by switching output Out B.
3.6 Monitoring and diagnostics
The vacuum suction nozzle has monitoring functions that permit early detection of malfunctions or
errors in ongoing operation.
– Monitoring of process parameters (pressure value at the vacuum connection, switching points,
switching outputs and switching inputs, evacuation time tE, air supply time tB and limit values)
– Diagnostic messages �� Chapter 7.1
– Error detection �� Chapter 7.2
The diagnostic messages are shown in the display.
For variants with 2 switching outputs (OVEM-...-2P/-2N), switching output Out B can also be set as
diagnostic message channel (dI 1 or dI 2) � Chapter 6.2.3.
The monitoring functions are activated at the factory (except for monitoring of the evacuation and air
supply times). The time monitoring can be activated through setting of the limit values for evacuation
time and air supply time ��Chapter 6.3.1.
OVEM
Festo – OVEM – 1702e English 15
3.7 Measured variables
Pressure value (vacuum)
The pressure value (vacuum) is continuously measured between the vacuum connection and filter.
The minimum and maximum measured pressure values are saved. If the operating voltage of the vacu
um suction nozzle is switched off, the values are lost.
Cycle time
A cycle covers the time from the start of evacuation through ejection to the start of the new evacuation.
Evacuation time and air supply time
The evacuation time tE is measured from the start of evacuation until reaching of the switchpoint SP1 of
the switching output.
The air supply time tB is measured from the start of air supply to the time at which the pressure value
(vacuum) falls below �50 mbar.
Vacuum valve
Cycle time
tE tBTransport time Return time
t
p
DI1
DO1
50 mbar
0
1
2
Ejector pulse valve
1 Switching point SP1
2 Reset point RSP1
tE Evacuation time
tB Air supply time
Fig. 4 Clock cycle – example for Out A (Air-save)
The shown sequence of the switching statuses and control signals applies to all product variants except
OVEM-...-1PD. Sequence for OVEM-...-1PD � Fig. 2
OVEM
16 Festo – OVEM – 1702e English
3.8 Teach function (Teach-In)
The Teach function permits configuring the switchpoints and time monitoring during run time.
Static Teach-In
Depending on the Teach command, one switchpoint (SP) or 2 switchpoints are determined from 2
teach-in points. The switchpoints are determined statically, that is, the measurement value remains
constant during the entire Teach-In procedure. During execution of the Teach-In procedure, the air save
function is deactivated for the duration of the procedure.
Dynamic Teach-In
Setpoint values are calculated within the Teach-In procedure from a time period. The procedure is used
for determination of evacuation and air supply times � Fig. 5.
After the start of the Teach-In, the time tE and tB is measured at each cycle. With multiple cycle times,
the times are averaged. After the stop of the Teach-In, a function reserve of 100 % is added to the aver
aged values.
Vacuum valve
TeachStart
TeachStoptE1 tB1 tE2 tB2
SP1
p
50 mbar
t
t
1 2
3 4 5
1 Transport time
2 Return time
3 Cycle time 1
4 Cycle time 2
5 Cycle time N
Fig. 5 Mode of operation: dynamic Teach-In - Example OVEM-...-CE
OVEM
Festo – OVEM – 1702e English 17
4 Installation
4.1 Mechanical
Note
An unfavourable mounting position can impair the function of the product.
� Install the vacuum suction nozzle so that no condensation from the compressed air
lines can gather in the device.
� Install the vacuum suction nozzle so that it cannot be heated above the maximum
permissible operating temperature (plan for convection possibilities).
� Install the vacuum suction nozzle so that the exhaust can flow without hindrance.
Direct mounting
M5 / M4 � Tab. 7
Max. 2.5 Nm
M3
Max. 0.8 Nm
Fig. 6 Direct mounting on the side Fig. 7 Direct mounting on the back
OVEM Mounting screws
OVEM-...-05/ -07/ -10 M5
OVEM-...-14/ -20 M4
Tab. 7 Size of the mounting screws with direct mounting on the side
OVEM
18 Festo – OVEM – 1702e English
Mounting on H-rail
H-rail mounting accessory � www.festo.com/catalogue
M3
Max. 0.8 Nm
1
� Mount H-rail mounting. � Hang OVEM with H-rail mounting in the H-rail
and press in the direction of the arrow.
� Secure with screw 1 to the H-rail.
Fig. 8 H-rail mounting
Mounting via mounting bracket
Accessories for mounting bracket � www.festo.com/catalogue
M5 / M4 � Tab. 7
Max. 2.5 Nm
Fig. 9 Mounting with mounting bracket
Mounting on supply manifold
Mounting is possible on a supply manifold with a maximum of 8 places (assembly instructions OABM-P
� www.festo.com/sp).
OVEM
Festo – OVEM – 1702e English 19
4.2 Pneumatic
OVEM-... Circuit symbol OVEM-... Circuit symbol
OVEM-...-QO-CN
OVEM-...-GO-CN
OVEM-...-QO-CE
OVEM-...-GO-CE
OVEM-...-QS-CN
OVEM-...-GN-CN
OVEM-...-QS-CE
OVEM-...-GN-CE
OVEM-...-QO-ON
OVEM-...-GO-ON
OVEM-...-QO-OE
OVEM-...-GO-OE
OVEM-...-QS-ON
OVEM-...-GN-ON
OVEM-...-QS-OE
OVEM-...-GN-OE
Tab. 8 Circuit symbols, pneumatic
OVEM-... -05-...-GN
-05-...-GO
-07-...-GN
-07-...-GO
-10-...-GN
-10-...-GO
-14-...-GN
-14-...-GO
-20-...-GN
-20-...-GO
Tubing length [m] < 0.5 < 2 < 0.5 < 2 < 0.5 < 2 < 0.5 < 2 < 0.5 < 2
Min. internal diameter of tubing
– Supply port [mm] 1 2 1.5 2 2 3 3 4 4 5
– Vacuum port [mm] 2 3 3 4 4 5 5.5 6 6 7
– Exhaust port [mm] 2 3 3 4 4 5 5.5 6 6 7
Tab. 9 Minimum inside diameter of the connection tubes for connections with G-female thread
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20 Festo – OVEM – 1702e English
Notes on the pneumatic connection
– Maximum admissible hose length 2 m
– OVEM-...-GN/GO: Pay attention to the minimum inside diameter of the connection tubes � Tab. 9.
– Do not seal exhaust port.
– OVEM-...-07/-10/-14/-20: If necessary, lengthen silencers with a silencer extension (accessories
� www.festo.com/catalogue)
– Recommendation: Use tubes of type PUN � www.festo.com/catalogue.
4.3 Electric
Warning
Electric voltage
Injury caused by electric shock, damage to machine and to system
� For the electrical power supply, use only PELV circuits in accordance with
IEC 60204-1/EN 60204-1.
� Use only voltage sources that ensure a reliable electric separation from the mains
network in accordance with IEC 60204-1/EN 60204-1.
� Observe the requirements of IEC 60204-1/EN 60204-1 for PELV circuits.
� Connect the vacuum suction nozzle to the electrical connection.
– 5-pin plug, M12x1
– Maximum tightening torque plug connector M12: 0.5 Nm
– Maximum permissible cable length: 20 m
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Festo – OVEM – 1702e English 21
Plug connector Pin Wire colour1) Function
5
2
3
4
1M 12x1 1 Brown (BN) L+ + 24 V
2 White (WH) DO2 digital output Out B
3 Blue (BU) L– 0 V
4 black (BK) DO1 digital output Out A/Out A (Air-save)
5 Grey (GY) DI1 digital switching input (suction)2)
1) If the connection line from the accessories is used � www.festo.com/catalogue
2) At the falling edge of the “Suction” control signal, the workpiece is set down.
Tab. 10 Pin assignment OVEM-...-2P/-2N
Plug connector Pin Wire colour1) Function
5
2
3
4
1M 12x1 1 Brown (BN) L+ + 24 V
2 White (WH) AO1 Analog output Out B
3 Blue (BU) L– 0 V
4 black (BK) DO1 digital output Out A/Out A (Air-save)
5 Grey (GY) DI1 digital switching input (suction)2)
1) If the connection line from the accessories is used � www.festo.com/catalogue
2) At the falling edge of the “Suction” control signal, the workpiece is set down.
Tab. 11 Pin assignment OVEM-...-PU/-PI/-NU/-NI
Plug connector Pin Wire colour1) Function
5
2
3
4
1M 12x1 1 Brown (BN) L+ + 24 V
2 White (WH) DO1 digital output Out A/Out A (Air-save) (PNP)
3 Blue (BU) L– 0 V
4 black (BK) DI2 digital switching input (ejection) (PNP)
5 Grey (GY) DI1 digital switching input (suction) (PNP)
1) If the connection line from the accessories is used � www.festo.com/catalogue
Tab. 12 Pin assignment OVEM-...-1PD
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22 Festo – OVEM – 1702e English
Circuit diagrams
OVEM-...-2P OVEM-...-2N
OVEM-...-PU OVEM-...-NU
OVEM-...-PI OVEM-...-NI
OVEM-...-1PD
Tab. 13 Circuit diagrams for vacuum suction nozzle
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Festo – OVEM – 1702e English 23
5 Commissioning
Note
Commissioning should only be carried out by qualified personnel.
5.1 Commissioning vacuum suction nozzle
At initial commissioning, the vacuum suction nozzle is placed in operation with the factory settings
� Tab. 14.
Requirements
– Vacuum suction nozzle is fully mounted and connected ��Chapter 4.
Check operating conditions
� Check the operating conditions and limit values ��Technical data.
Place vacuum suction nozzle OVEM-...-OE in operation
1. Apply operating pressure to compressed air supply port (1).
� Low pressure is generated at the vacuum connection (2).
2. Switch on the operating voltage.
� The current pressure value is displayed.
� The vacuum suction nozzle is ready for operation.
Place vacuum suction nozzle OVEM-...-CE in operation
1. Apply operating pressure to compressed air supply port (1).
2. Switch on the operating voltage.
3. Activate suction: apply input signal to pin 5.
� Low pressure is generated at the vacuum connection (2).
� The current pressure value is displayed.
� The vacuum suction nozzle is ready for operation.
Changing of the operating pressure changes the strength of the low pressure at the vacuum connec
tion. As a result, the vacuum can be set at the suction gripper.
Functions and parameters can be determined:
– manually at the device ��Chapter 11.2.4
– by Teach-In ��Chapter 11.2.5
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24 Festo – OVEM – 1702e English
5.2 Set the intensity of the ejector pulse
Requirements
– Vacuum suction nozzle is in operation.
Fig. 10 Screw in flow control screw
1. Completely screw in the flow control screw.
� The channel for the ejector pulse is closed. No ejector pulse is generated.
2. Switch on vacuum generation.
� Low pressure is generated at the vacuum connection (2).
3. Switch off vacuum generation.
4. Unscrew flow control screw slightly.
� An automatic ejector pulse is generated.
If no automatic ejector pulse is generated, operate the mechanical manual override of the eject
or pulse solenoid valve.
5. Screw out or in the flow control screw until the required intensity of the ejector pulse is set.
Setting the ejector pulse duration ��Chapter 6.1.
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Festo – OVEM – 1702e English 25
6 Operation
Additional information on operating statuses and menu structure ��Chapter 11.2
6.1 Setting the ejector pulse duration
Prerequisites
– RUN mode is active.
– Security code is not active.
1. Press the EDIT button.
� [A] flashes.
� EDIT mode is active.
2. Press B-key.
� [B] + segment L18 flash.
3. Press EDIT button.
� [msec], [_|¯] and [¯|_] flash.
4. Set time (in ms) via the A button and the B button.
To deactivate the ejector pulse, set to OFF.
5. Keep EDIT button pressed for 3 seconds.
� RUN mode is active.
Note
When large suction grippers are used, a vacuum independent of the device can be built
up for physical reasons. This might mean that the workpiece does not detach from the
suction gripper, even if the ejector pulse is set to a sufficiently long duration.
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26 Festo – OVEM – 1702e English
6.2 Configure the switching outputs
6.2.1 Display switching output settings
The process for displaying the settings of the switching outputs Out A (A-button) and
Out B (B-button) is fundamentally the same. In addition, the configuration of the switch
ing output and the duration of the ejector pulse is displayed for switching output Out B.
In the following, the process is described using the switching output Out A.
Prerequisite:
– RUN mode is active.
1. Press the A key.
� SHOW mode is active.
� If there are errors, the error numbers are indicated.
2. Press the A key.
� The following settings will be displayed:
– switching function (threshold value or window comparator)
– Switching points [SP] or [SP] [min].
– switching characteristic [NO/NC]
3. Press the A key.
� Only with Window comparator switching function: switching point [SP], [max] is displayed.
– Press A-key.
� Hysteresis [HY] is displayed.
4. Press the A key.
� Minimum pressure value is displayed.
5. Press the A key.
� Maximum pressure value is displayed.
6. Press the A key.
� RUN mode is active.
6.2.2 Setting the switching characteristics of a switching output
The process for setting the switch outputs Out A (A-button) and Out B (B-button) is funda
mentally the same. Additionally, the switching output IN A1 must be selected for Out B,
since Out B can also be configured as a diagnostic message output.
� Chapter 6.2.3.
In the following, the process is described using the switching output Out B.
Prerequisites:
– RUN mode is active.
– Switching output Out B is defined as switching output In A1.
– Security code is not active.
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Festo – OVEM – 1702e English 27
1. Press EDIT button.
� [A] flashes.
� EDIT mode is active.
2. Press B-key.
� [B] flashes.
3. Press EDIT button.
� Display <InA1>
4. Press EDIT button.
� The currently set switching function flashes (threshold value or window comparator).
5. Set switching function using the A or B key.
6. Press EDIT button.
� [SP] flashes (threshold value comparator) or [SP], [min] flashes (window comparator).
7. Set switching point (SP or SPmin) using the A key or B key.
8. Press EDIT button.
� Only with switching function window comparator: [SP], [max] flashes.
– Set switching point (SPmax) using the A key or B key.
– Press EDIT button.
� [HY] flashes.
9. Set hysteresis [HY] using the A key or B key.
10.Press EDIT button.
� [NO] or [NC] flashes.
11.Set the switching characteristic [NO/NC] using the A key or B key.
12.Press EDIT button.
� RUN mode is active.
6.2.3 Set diagnostic message channel
If the switching output Out B is set as diagnostic message channel (dl 1 or dl 2), the
switching output Out B can no longer be used as switching output In A1.
Prerequisites:
– RUN mode is active.
– Security code is not active.
1. Press EDIT button.
� [A] flashes.
� EDIT mode is active.
2. Press B-key.
� [B] flashes.
3. Press EDIT button.
� If Out B is defined as switching output, <InA1> is displayed.
4. Set the diagnostic message channel (dI 1 or dI 2) using the A key or B key.
5. Press EDIT button.
� [NO] or [NC] flashes.
6. Set the switching characteristic [NO/NC] using the A key or B key.
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28 Festo – OVEM – 1702e English
7. Press EDIT button.
� RUN mode is active.
6.2.4 Teaching of switching points
During teaching, the air saving function is automatically deactivated.
If the pressure differential between the teach points is two little, teaching does not work.
The process is the same for teaching the switching outputs Out A (A button) and Out B (B
button). In the following, the process is described using the switching output Out A.
Prerequisites:
– RUN mode is active.
– Switching function is set.
– Security code is not active.
1. Set the vacuum for the first teach point.
Object gripped or object not gripped – the sequence is freely selectable.
2. Press the A key and the EDIT button simultaneously.
� Teach mode is active.
� Air saving function is deactivated.
� The measured value is taken over as the first teach point (TP1).
� [A] and [TeachIn] flash.
3. Set the vacuum for the second teach point (TP2).
4. Press the A key and the EDIT button simultaneously.
� The measured value is taken over as the second teach point (TP2).
� Switching points (SP or SPmin and SPmax) become applicable.
� The air saving function is activated.
� RUN mode is active.
Note
The hysteresis is adjusted to the taught values.
Setting the hysteresis (��Chapter 6.3).
Recommendation: check the taught values in a test run.
6.2.5 Deleting the minimum or maximum pressure value
Prerequisite:
– RUN mode is active.
1. Press the A key.
� SHOW mode is active.
� If there are errors, the error numbers are indicated.
2. Repeatedly press the A key until the minimum pressure value is displayed.
3. To see the following value, press the A key.
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Festo – OVEM – 1702e English 29
To delete the minimum pressure value, press the EDIT button.
� The minimum pressure value is deleted.
4. Press the A key.
� Maximum pressure value is displayed.
5. To return to RUN mode, press the A key.
To delete the maximum pressure value, press theEDIT button.
� The maximum pressure value is deleted.
6. Press the A key.
� RUN mode is active.
6.3 Configuring the evacuation and air supply times
6.3.1 Setting the limit values for the evacuation and air supply times
Prerequisites:
– EDIT mode is active, [Out A] flashes.
– Security code is not active.
1. Press the A key.
� Display <SPEC>
2. Press EDIT button.
� [Option] flashes.
3. Press EDIT button.
� [Lock] flashes.
4. Press EDIT button.
� [msec], [SP], [max] and [_|¯] flash.
5. Set the maximum evacuation time using the A key and B key.
[OFF]: monitoring of the evacuation time is not active.
6. Press EDIT button.
� [msec], [SP], [max] and [¯|_] flash.
7. Set the maximum air supply time using the A key and B key.
[OFF]: monitoring of the air supply time is not active.
8. Press EDIT button.
� RUN mode is active.
6.3.2 Teaching the evacuation and air supply time
Prerequisites:
– RUN mode is active.
– Security code is not active.
– Switching function is set.
1. Press the A key, B key and the EDIT button simultaneously.
� TEACH mode is active.
� [TeachIn] and the diagnostics segments flash.
2. Measure at least one clock cycle.
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30 Festo – OVEM – 1702e English
The mean value of the measured cycles is calculated.
The more cycles are run, the better is the value.
The taught values are applied with a function reserve of 100 �%.
3. Press A key, B key and EDIT button.
� RUN mode is active.
If the switching points or the intensity of the ejector pulse are changed,
teach the evacuation and air supply times again.
Recommendation: check the taught values in a test run.
6.3.3 Displaying the evacuation and air supply times
Prerequisite:
– RUN mode is active.
1. Press the A key and B key simultaneously.
� SHOW mode is active.
� evacuation time limit value is displayed.
2. Press the A key and B key simultaneously.
� air supply time limit value is displayed.
3. Press the A key and B key simultaneously.
� The minimum evacuation time is displayed.
4. Press the A key and B key simultaneously.
� The maximum evacuation time is displayed.
5. Press the A key and B key simultaneously.
� The minimum air supply time is displayed.
6. Press the A key and B key simultaneously.
� The maximum air supply time is displayed.
7. Press the A key and B key simultaneously.
� RUN mode is active.
6.3.4 Deleting the evacuation and air supply times
Prerequisites:
– SHOW mode is active.
– The minimum evacuation time is displayed.
1. To see the following value, press the A key and B key simultaneously.
To delete the displayed value, press the EDIT button.
2. Press the A key and B key simultaneously.
� RUN mode is active.
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Festo – OVEM – 1702e English 31
6.4 Operating manual override
Both solenoid valves can be manually switched with the manual override.
6.4.1 Mechanical manual override
1. Press in the stem of the manual override with a blunt pin.
� The solenoid valve switches.
2. Remove the pin.
� The stem of the manual override automatically returns. The
solenoid valve reverts to the basic position.
Fig. 11 Mechanical
manual override
6.4.2 Electrical manual override
Prerequisites:
– RUN mode is active.
– Security code is not active.
1. Press EDIT button.
� [A] flashes.
� EDIT mode is active.
2. Press B-key.
� [B] flashes + segment L18 is illuminated.
3. Press EDIT button.
� [msec], [_|¯] and [¯|_] flash. The duration of the ejector pulse is displayed.
4. Press EDIT button.
� Display <FORC>. The electrical manual override is active.
5. Switching the solenoid valves.
– Vacuum solenoid valve: press A key.
– Ejector pulse solenoid valve: Press B key.
6. To exit the submenu, press the EDIT button.
� RUN mode is active.
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32 Festo – OVEM – 1702e English
6.5 Activating security code
A security code can be established and activated to prevent changes by unauthorised persons.
– Factory setting: “OFF”
– The security code is reset when factory settings are restored.
Prerequisites:
– RUN mode is active.
– Security code is not active.
1. Press EDIT button.
� [A] flashes.
� EDIT mode is active.
2. Press the A key.
� Display <SPEC>
3. Press EDIT button.
� [Option] flashes.
4. Press EDIT button.
� [Lock] flashes.
5. Set the security code using the A key and B key.
[OFF]: security code is not active.
6. Keep EDIT button pressed for 3 seconds.
� RUN mode is active.
6.6 Switching the air saving function on or off
Prerequisites:
– EDIT mode is active, [Out A] flashes.
– Security code is not active.
1. Press the A key.
� Display <SPEC>
2. Press EDIT button.
� [Option] flashes.
3. Switch the air saving function on or off using the A key or B key.
– [ON]: Air saving function active.
– [OFF]: Air-saving function not active.
4. Keep EDIT button pressed for 3 seconds.
� RUN mode is active.
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Festo – OVEM – 1702e English 33
6.7 Restore factory settings
Through resetting of the factory settings, the parameters, configuration and security code are reset to
the condition at shipment � Tab. 14.
The current settings are lost.
1. Switch off the operating voltage.
2. Simultaneously press and hold down A key + B key + EDIT button.
3. Switch on the operating voltage.
� Display <CLEA>
4. Release the A key + B key + EDIT button.
� The factory settings are restored.
Factory settings
Parameter OVEM-...-H OVEM-...-L
Switching mode of the electrical output Threshold value comparator
Switching logic of the electrical output NO (Normally Open)
Air-saving function Active
Security code Off
Out A (Air-save) SP1 [bar] –0.7 –0.4
Hysteresis [bar] 0.25
Out A SP1 [bar] –0.7 –0.4
SP2 [bar] –0.97 –0.67
Hysteresis [bar] 0.25 0.1
Out B1) SP1 [bar] –0.5 –0.2
SP2 [bar] –0.71 –0.41
Hysteresis [bar] 0.2 0.1
Duration of ejector pulse1) [ms] 200
1) Parameters not available for OVEM-...-1PD
Tab. 14 Factory settings
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7 Error messages and fault clearance
The diagnostic messages are shown as error code on the display.
For variants with 2 switching outputs (OVEM-...-2P/-2N), one of the two logic channels of switching
output Out B can in addition be set as a diagnostic message channel ��Chapter�6.2.3.
The diagnostic message channel can be configured as normally open (NO) or normally closed (NC).
7.1 Diagnostic levels
There are 4 diagnostic levels. The red background illumination of the display lights up for messages of
the diagnostic levels 1 to 3.
Diagnostic
level
Diagnostic message
channel
Description
0 No message Device is OK.
1 logical channel dI 1 is
active
no restriction in function yet but operating parameters are
worsening
2 logical channel dI 1 or
dI 2 is active
Function still ensured, but with restrictions (e.g. higher power
consumption).
Emergency operation, maintenance urgently required.
3 logical channel dI 1 or
dI 2 is active
Function is no longer assured.
All controllable outputs of the device are inactive.
Tab. 15 Diagnostic levels for switching output Out B and display
If the evacuation and air supply time is to be monitored, set the limit values for the evacuation and air
supply time ��Chap.�6.6.
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Festo – OVEM – 1702e English 35
7.2 Error messages and error codes
Display Diagnostic
level
Description Remedy
Er01 3 Hardware errors in the device � Replace device.
Er17 3 Supply voltage is too high or too low
(error)
� Check the power supply.
Er20 2 permissible device temperature
exceeded
� Keep device away from heat
sources.
Er21 2 Short-circuit Out A � Check output for overload.
� Check installation.
Er32 2 OVEM-...-1PD:
Vacuum solenoid valve does not
switch or does not switch correctly
� Press mechanical manual override
several times.
� Check the power supply.
� Replace device.
Er33 2 except OVEM-...-1PD:
Solenoid valve does not switch or
does not switch correctly.
Plunger does not move,
current through solenoid coil is too
low, short circuit in solenoid coil
� Press mechanical manual override
several times.
� Check the power supply.
� Replace device.
OVEM-...-1PD:
Ejector pulse solenoid valve does not
switch or does not switch correctly
Er34 1 Evacuation time exceeded in 2 of 5
cycles
� Check for leakage.
Er35 2 Evacuation time exceeded by a factor
of two in 2 of 5 cycles
Er36 1 Air supply time exceeded in 2 of 5
cycles
� Check for leakage.
� Extend air supply time.
� Check throttle setting.Er37 2 Air supply time exceeded by a factor
of two in 2 of 5 cycles
Er38 2 Switching frequency of the air saving
function > 1 Hz (warning)
� Check for leakage.
Er39 2 SP1 for Out A not reached after 10 �s � Check for leakage.
� Check compressed air supply.
Switch-back threshold fallen below
(active air saving function and
threshold value comparator)
� Check trigger levels.
� Check settings for Out A.
� Check compressed air supply.
upper trigger level exceeded or lower
trigger level fallen below (window
comparator)
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36 Festo – OVEM – 1702e English
Display RemedyDescriptionDiagnostic
level
Er40 2 Supply voltage too high (warning) � Check the power supply.
Er41 2 Supply voltage too low (warning)
Tab. 16 Error messages, error codes, diagnostic levels and error description
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Festo – OVEM – 1702e English 37
7.3 Malfunctions
Malfunction Possible cause Remedy
Workpiece does not detach
from the suction gripper
device-independent vacuum
between workpiece and suction
gripper, ejector pulse not activ
ated or sufficiently dimensioned
� Activate ejector pulse when
lifting the suction gripper.
� Increase the duration and
intensity of the ejector pulse.
Tubing dimensioned incorrectly � Replace tubing (tubing dimen
sions ��Chap.�4.2).
Flow control screw closed � Open the flow control screw.
Switching output does not
react in accordance with
the settings
Short circuit or overload at the
output
� Eliminate short circuit or
overload.
Device defective � Replace device.
No display Operating voltage faulty � Apply permissible operating
voltage ��Chap.�4.3.
electrical connections swapped � Connect device correctly
��Chap. 4.3.
Device defective � Replace device.
Incomplete display Display defective � Replace device.
Pressure indicator incorrect pneumatic connections swapped � Connect device correctly
��Chap. 4.2.
Settings cannot be edited,
[Lock] is displayed
Security code active � Enter security code
��Chap. 6.5.
[min] + [max] flashing at the
same time
Diagnostic level 1 active � ��Chap.�7.1
Display + [min] + [max] flash
simultaneously
Diagnostic level 2 active � ��Chap.�7.1
Display flashes and error
code appears
Diagnostic level 3 active � ��Chap.�7.1
[Option] flashes Air-save function deactivated be
cause outside the limit value
� Check for leakage.
Tab. 17 Malfunctions
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8 Disassembly
1. Switch off energy sources:
– operating voltage
– compressed air
2. Disconnect pneumatic and electrical connections from the device.
3. Loosen mountings and remove device.
9 Maintenance and care
Clean device
1. Switch off energy sources:
– operating voltage
– compressed air
2. Clean device with non-abrasive cleaning agents.
3. Check air filter through the inspection window for dirt.
Replace air filter
1
2
Fig. 12 Remove / install air filter
1. Vent the vacuum suction nozzle.
2. Carefully pull out the slide 1 up to the first detent. The slide must stay in this position on the filter.
3. Pull out filter 2. Clean, if necessary.
4. Push filter into the housing.
5. Push in slide.
� The filter is pushed by the slide into the vacuum suction nozzle.
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Festo – OVEM – 1702e English 39
10 Technical data
OVEM-... -05 -07 / -10 -14 / -20
General
Certification certificate c UL us listed (OL)
RCM
CE mark
(� www.festo.com/sp declaration of conformity)
In accordance with EU EMC Directive
Characteristic values
Operating pressure OVEM-...-QS / -GN / -PL [bar] 2…6
Operating pressure OVEM-...-QO / -GO / -PO [bar] 2…8
Pressure measuring range [bar] –1…0
Overload pressure at vacuum port [bar] 5
Ready-state delay [ms] 500
Dead time (evacuation and ejection) [ms] 10 20 35
Electronics
Nominal operating voltage [V DC] 24 ± 15 %
Max. output current (per switching output) [mA] 100
Voltage drop (for all switching outputs) [V] 1.5
Idle current [mA] 70
Coil characteristics, 24 V DC - low current phase [W] 0.3
Coil characteristics, 24 V DC - high current phase [W] 2.55
Time until current reduction [ms] 80
Capacitive load maximum DC [nF] 100
Overload protection Provided
Inductive protective circuit Adapted to MZ, MY, ME coils
Insulation voltage [V] 50
Surge resistance [kV] 0.8
Max. current consumption
OVEM-...-2P/-2N [mA] 270
OVEM-...-PI/-PU/-NI/-NU [mA] 180
OVEM-...-1PD [mA] 165
Accuracy [% FS] ± 3
Hysteresis [% FS] ± 0.1
Short-circuit resistance Provided
Protection against polarity reversal For all electrical connections
Display/operation
Threshold value setting range [bar] –0.999…0
Hysteresis setting range [bar] –0.9…0
Setting range duration, ejector pulse [ms] 20…9999 40…9999
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40 Festo – OVEM – 1702e English
OVEM-... -14 / -20-07 / -10-05
Environment
Ambient temperature [°C] 0…50
Temperature of medium [°C] 0…50
Degree of contamination 3
Operating medium Compressed air to ISO 8573-1:2010
[7:4:4]
Note on the operating medium Lubricated operation not possible
Note on materials RoHS-compliant
Resistance to shock (in accordance with
IEC 60068 /EN60068)
30 g acceleration with 11 ms duration
(half-sine)
Vibration resistance (in accordance with EN 60068-2) 10…60 Hz: 0.35 mm / 60…150 Hz: 5 g
Protection class III
Degree of protection IP 65
Relative air humidity [%] 5…85
Interference emission In accordance with EN 61000-6-4
Interference immunity to EN 61000-6-2
Maximum permissible signal line length [m] 20
Materials
Information on materials - seals NBR
Information on materials - housing Die-cast aluminium, PA reinforced
Information on materials - plug housing housing Nickel-plated brass
Tab. 18 Technical data
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Festo – OVEM – 1702e English 41
11 Appendix
11.1 Graphic display and LCD displays
4
5
6
7
9
aJ
1 2 3
8
1 Display segment switching output Out A
2 Display segment of switching output Out B
(except OVEM-...-1PD)
3 Display segment of switching input In A1
(except OVEM-...-1PD)
4 4-digit alphanumeric display
5 Toolbar for functions � Tab. 19
6 Segment bar to the right: graphic display of
the current status of the digital inputs or
valve status � Tab. 19
7 B-key
8 A-key
9 EDIT button
aJ Segment bar to the left: graphic display of
the current pressure value related to the
maximum measured value of the measuring
range
Fig. 13 LCD display and operating keys
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42 Festo – OVEM – 1702e English
Symbol Description
Threshold value comparator selected
[SP] Switching point
Window comparator selected
[SP] + [min] Lower switching point
[SP] + [max] Upper switching point
[HY] Hysteresis
[NO] / [NC] Switching logic normally open (Normally open) / normally closed (Normally
closed)
[TeachIn] Teach function (Teach-In) active
[Option] Air-saving function active
[Lock] Security code active
L10
L12
L1 L2
L18
L16
L3
Segments display the following:
– current status of the digital inputs
– current valve status
� Tab. 20 and Tab. 21
Tab. 19 Symbolism in display
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Festo – OVEM – 1702e English 43
Advertisement Description
Segment L10 is illuminated Vacuum solenoid valve is switched.
Segment L14 is illuminated Ejector pulse solenoid valve is switched.
Segment L17 + [A] are illuminated and
[min] flashes
Minimum pressure value display
Segment L17 + [A] are illuminated and
[max] flashes
Maximum pressure value display
Segment L18 + [B] illuminated and
[msec] + [_|¯¯|_] flash
Duration of ejector pulse
Segments L1, L3, L4, L5 illuminated and Diagnostics of evacuation and air supply times
[msec] + [_|¯] + [min] flash Display of minimum evacuation time
[msec] + [_|¯] + [max] flash Display of minimum evacuation time
[msec] + [¯|_] + [min] flash Display of minimum air supply time
[msec] + [¯|_] + [max] flash Display of maximum air supply time
[msec] + [_|¯] + [SP] + [max] flash Display/Setting of evacuation time limit value
[msec] + [¯|_] + [SP] + [max] flash Display/setting the air supply time limit value
Segments L1, L2, L5, L6 are illuminated
and display <ON> + [Option] flashes
Setting of air-saving function (EDIT mode)
<ON>: Air-saving function active
<OFF>: Air-saving function not active
Segments L1, L2, L5, L6 illuminated and
[Lock] flashing
Setting the security code (1…9999)
<OFF>: security code is not active
Segment L10 + [B] are illuminated +
display <FORC>
additional function of the electrical manual over
ride via operating buttons
Vacuum solenoid valve switched
Segment L14 + [B] are illuminated +
display <FORC>
additional function of the electrical manual
override via operating buttons
Ejector pulse solenoid valve (Eject) switched
Tab. 20 OVEM-...-2P/-2N/-PU/-PI/-NU/-NI: additional displays of segment bars – Examples
OVEM
44 Festo – OVEM – 1702e English
Advertisement Description
Segment L10 is illuminated Vacuum solenoid valve is switched.
Segment L12 is illuminated Ejector pulse solenoid valve is switched.
Segment L16 is illuminated digital switching input DI 1 (suction) is set.
Segment L18 is illuminated digital switching input DI2 (ejection) is set.
Segment L17 + [A] are illuminated and
[min] flashes
Minimum pressure value display
Segment L17 + [A] are illuminated and
[max] flashes
Maximum pressure value display
Segments L1, L3, L4, L5 illuminated and Diagnostics of evacuation and air supply times
[msec] + [_|¯] + [min] flash Display of minimum evacuation time
[msec] + [_|¯] + [max] flash Display of minimum evacuation time
[msec] + [¯|_] + [min] flash Display of minimum air supply time
[msec] + [¯|_] + [max] flash Display of maximum air supply time
[msec] + [_|¯] + [SP] + [max] flash Display/Setting of evacuation time limit value
[msec] + [¯|_] + [SP] + [max] flash Display/setting the air supply time limit value
Segments L1, L2, L5, L6 are illuminated
and display <ON> + [Option] flashes
Setting of air-saving function (EDIT mode)
<ON>: Air-saving function active
<OFF>: Air-saving function not active
Segments L1, L2, L5, L6 illuminated and
[Lock] flashing
Setting the security code (1…9999)
<OFF>: security code is not active
Segment L10 + [B] are illuminated +
display <FORC>
additional function of the electrical manual
override via operating buttons
Vacuum solenoid valve switched
Segment L12 + [B] are illuminated +
display <FORC>
additional function of the electrical manual
override via operating buttons
Ejector pulse solenoid valve (Eject) switched
Tab. 21 OVEM-...-1PD: additional displays of segment bars – Examples
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Festo – OVEM – 1702e English 45
11.2 Operating statuses and menu structure
11.2.1 Meaning of symbols for representing the menu structure
Symbol Significance
automatic return to the RUN mode when the monitoring time has expired
(here 80 seconds)
Press EDITbutton for 3 seconds: manual return to the RUN mode
Symbol on the display flashes (here display segment switching output Out A)
/ Input blocked / not blocked
press individual key (here A key)
Press A-key or B-key, set value
Press keys simultaneously (here: B key and EDIT button)
Press EDIT button
Branch
Error display
Reset values
Cycle
Vacuum solenoid valve switched
Ejector pulse solenoid valve switched
Teach point is taken over
Special menu (SPEC) is active (Setting of the air saving function, security code,
max. evacuation and max. air supply time)
Tab. 22 Meaning of symbols for representing the menu structure
11.2.2 RUN mode
– Basic status after the operating voltage is switched on
– Display of the current measured value (relative pressure)
– Display of the signal statuses of the solenoid valves
– Display of the selected inputs and outputs
OVEM
46 Festo – OVEM – 1702e English
11.2.3 SHOW mode
– Display of the current settings
– Display and deletion of the minimum and maximum pressure values
– Display and deletion of the minimum and maximum evacuation and air supply time
– Display of diagnostic messages
1
1 Submenu only available for OVEM-...-2P/-2N/-PU/-PI/-NU/-NI
Fig. 14 Menu structure SHOW mode
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Festo – OVEM – 1702e English 47
11.2.4 EDIT mode
– Setting of parameters
– Operation of the electrical manual override (FORC)
1
1
1 Submenu only available for OVEM-...-CE / -OE
Fig. 15 Menu structure EDIT mode
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48 Festo – OVEM – 1702e English
11.2.5 Teach mode
– Acceptance of the current measured value to determine switchpoints
1
1 Submenu only available for OVEM-...-2P/-2N
Fig. 16 Menu structure for Teach mode
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