NXL Lift Application Drive Manual - Digital Advanced … Drive NXL Manual...4 1.0Safety 1.1 Warnings...

Digital Advance Control LTD,

Unit 2 Faraday Close,

Drayton Fields Industrial Estate,

Daventry, Northamptonshire.

NN11 8RD.

Tel: +44(0)1327 879334

Fax: +44(0)1327 877087

[email protected]

www.digital-advanced-control.co.uk

NXL Lift Application Drive Manual

YSP 2010 Version 1.0 MN2 [email protected] Tel +44(0)1327879334

3 3

Index

1. Safety Page 4

2. Introduction Page 5

3. EMC Considerations Page 6

4. Block Diagram Page 7

5. Drive Signals Page 8

6. Typical Connections Page 9

7. The Control Keypad Page 10

8. Navigation Of The Control Keypad Page 12

9. The Monitoring Menu Page 14

10. Faults and Fault Tracing Page 15

11. Commissioning An Asynchronous (standard motor) Machine

i. initial parameter settings and checks Page 19

ii. Direction Check Page 20

12. Open Loop Commissioning

i. initial checks Page 21

ii. high speed setup Page 21

iii. levelling speed setup Page 21

iv. lift stopping setup Page 22

v. lift starting setup Page 23

vi. brake stall check Page 23

vii. final checks Page 23

13. copying parameters Page 24

14. parameters and the default parameter settings page 25

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1.0 Safety

1.1 Warnings

do not perform any measurements on the frequency converter when the frequency

converter is connected to the mains

Do not perform any voltage withstand test on any part of the Vacon NXP. There is a certain

procedure according to which the test shall be performed. Ignoring this procedure may

result in damaged product.

The Earth leakage current of the Vacon NXP frequency converter exceeds 3.5 milliamps A/C

and in compliance with EN61800 -- 5 -- 1 a reinforced protective ground connection is used

and should not be removed from the drive.

Only Vacon spare parts should be used.

Do not touch the components on the circuit boards static voltage discharge may damage the

components.

1.2 Safety Instructions

The components of the power unit of the frequency converter are live when the Vacon NXP

is connected to the mains potential. Coming into contact with this voltage is extremely

dangerous and may cause death or severe injury. The control unit is isolated from

mains potential.

The motor terminals U, V, W and the DC link/brake resistor terminals are live when the

Vacon NXP is connected to the mains, even when the motor is not running.

After disconnecting the frequency converter from the mains, wait until the fan stops and the

indicators on the keypad go out (if no keypad is attached, there are indicators on the cover).

Wait 5 minutes more before doing any work on the Vacon NXP connections. Do not even

open the cover before this time has expired.

The control I/O terminals are isolated from the mains potential. However, the relay outputs

and other I/O terminals may have a dangerous control voltage present even when the Vacon

NXP is disconnected from the mains. Always check the drawings to see if any of the relays or

the I/O is connected to a dangerous potential.

Before connecting the frequency converter/control system to the mains make sure that the

Vacon NXP front cable covers are closed.

The Earth for protection inside the frequency converter protects only the converter itself

against a fault in the motor or the motor cable. It is not intended for personal safety.

1.3 Warning symbols

For your own safety please pay special attention to instructions marked with the following symbols:


5 5

2.0 Introduction

The Vacon NXL is a state-of-the-art A/C drive for use in the lift applications were reliability, dynamic

performance, precision and power are required.

The ride quality and reliability of the lift system is in most cases the result of precise dynamic control

of the motor. The Vacon NXL has been designed to provide the best possible control under all

circumstances, ensuring high operational reliability and ride quality for the entire lifetime of the

system.

As a forerunner in designing and manufacturing A/C drive systems, Vacon has developed many

innovative solutions and leading-edge technology for demanding applications one of which is the lift

application. The Vacon Drive has been used on many lift applications both within the UK and abroad.

The Vacon NXL is suitable for asynchronous Open Loop only and is also suitable for geared

applications. The control topology is open loop sensorless flux vector control. The drive utilises the

latest PWM technology to ensure switching losses and efficiencies to the motor are minimised and

maximised respectively.

The Vacon NXL also has the advantage of including all the filters and DC chokes incorporated within

the Power module to ensure compliance with the EMC directive. The Vacon unit can also have an

optional regenerative low harmonic drive added to improve power quality and have additional

energy saving’s when the lift is in the regenerative state.

Snap on Fan

Removable

Display

Robust Power

Module

Connection to

PC or Keypad

Touch-protected High

Voltage Connections

Separate Control

unit and flexible

I/O.

6

3.0 EMC considerations

Variable frequency variable voltage drives utilise high-power electronic switching to control both the

frequency and the voltage to the motor, this has a side effect of causing electromagnetic

interference and the Vacon NXL complies with the relevant EMC standards. This compliance relies on

the correct installation requirements being followed. The following is required to keep conformance

to the relevant standards:

Wire the mains to the control panel in a suitably rated SY mains cable, with the screen

connected at both the isolator and the panel earthing points. Ensure the screen is bonded

using 360° clamps or ensure the screen pigtail is less than 50 mm long.

Wire the motor from the panel connections in a suitably rated SY mains cable with the

screen connected at both the panel and the motor earthing points. Ensure the screen is

bonded using 360° clamps or ensure the screen pigtail is less than 50 mm long.

Ensure the motor and mains cable are at least 300 mm apart. Also ensure that any other

cable such as Brake thermistor and encoder wiring is kept separate from the motor cables.

Ensure the encoder cable's screen cables are not the only at the drive. Ensure the cable is

properly terminates using the strap provided in the drive.

Ensure the earthing of the incoming mains is a good Earth and is in compliance with the

current IEEE regulations. (Note: the earthing should not solely rely on trunking and conduit

connections or bonding strips).

Ensure the Earth is connected from the isolator to the panel via the recommended practices

in the current IEEE regulations.


7 7

4.0 Block diagram of the drive

The figure below presents the block diagram of the Vacon NXL frequency converter. The frequency

converter mechanically consists of 2 units, the power unit and the control unit.

The three-phase A/C choke (1) and the mains end together with the DC link capacitors (2) forms a LC

filter which, again, together with the diode bridge produces a DC voltage that is applied to the IGBT

inverter bridge (3) block. The A/C choke also functions as a filter against high-frequency disturbances

from the mains as well as against those caused by the frequency converter to the mains. It, in

addition, enhances the waveform of the input current to the frequency converter. The entire power

drawn by the frequency converter from the mains is active power.

The motor and application control block is based on the microprocessor software. The

microprocessor controls the motor based on the information received through measurements,

parameter settings, control I/O and the control keypad. The motor application control block controls

the motor control ASIC which in turn calculates the IGBT switch positions. Gate Drivers amplify these

signals, and operates the drives IGBT inverter bridge.

The brake chopper is an additional unit built within the drive system to control the voltage across

the DC link when the motor enters the regenerative state. The excess energy is placed across the

resistors to maintain the DC link at the correct voltage.

8

5.0 Drive signals

The drive utilises an internally derived 24V coupled with contacts on the control system to

give the signals to operate the drive. The signals are listed below with the termination

numbers.

5.1 Input signals (Slot A)

NX0PTA1

Terminal Description

6 +24V 24V control voltage output(100 mA Max)

7 GND I/O ground reference

8 DIN1 Up direction

9 DIN2 Down direction

10 DIN3 Run enable(off = coast to stop)


30 +24V in Control power supply backup

5.2 Output signals (Slot B)

NX0PTA2

Terminal Description

22 R01(common) Relay output 1 (Fault)

23 R01(N/O)

5.3 Ext Input signals (Slot C)

NX0PTAA

X3 Terminal Description

1 +24V 24V control voltage output(100 mA Max)


3 DIN1 DIE1 High Speed

4 DIN2 DIE2 Medium Speed

5 DIN3 DIE3 Inspection Speed

X5 Terminal Description

25 R01E(common) Relay output 1 Ext (Mechanical brake)

26 R01E(N/O)


9 9

5.4 Typical connections

10

= Indicates the direction of rotation of the motor

= Illuminates with the A/C Power is connected to the drive and no faults are active

= Illuminates when the drive is running

= Flashes when an unsafe operating condition exists and the drive has stopped in

the fault condition.

6.0 The control keypad

The control keypad is a link between the Vacon frequency converter and the user. The keypad is an

alphanumeric display with various indicators for the run and status of the drive. There are also 3

status LEDs. The keypad also has 8 push buttons to aid parameter setting and monitor values of the

drive.

6.1 Drive status indicators

= The motor is running

6.2 The keypad push buttons

The Vacon alphanumeric control keypad features 8 push buttons that are used to control the

frequency converter, parameter settings and Value monitoring.

= Indicates when the A/C power is on, in case of fault will not show ready

= Indicates the drive is running outside its limits and a warning is given

= Indicates that the drive is not running

= Indicates the drive has encountered unsafe operating conditions and has

stopped.


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= This button is used to reset the active faults

= This button is used to enter the values/reset fault history when held for 2 to 3

seconds when in the fault history.

= Browse the main menu and pages of the submenus/increase parameter values

= Browse the main menu and pages of the submenus/decrease parameter values

= Menu button left/move backwards in the menu/move the cursor left

= Menu button right/move forwards in the menu/move the cursor right

Keypad layout

12

6.2 Navigation of the control keypad

The data from the control keypad is arranged in menus and submenus. The menus are used for the

displaying of monitored items such as frequency, current, voltage, etc and also the displaying and

editing of the parameters used to configure the drive.

The various different functions of the drive are arranged in a simple menu structure of a main menu

consisting of 7 menus as follows:

M1 Monitor.

P2 Parameters.

K3 Keypad control.

F4 Active faults.

H5 Fault history.

S6 System menu.

E7 Expander boards (option cards).


13 13

Each of the various submenus can then be accessed from the main menu for example to access the

monitoring values you first access the monitor menu and then using the right arrow enter the

monitor menu and using the up and down arrows you can then access each of the monitoring

values.

Another example is if you want to change a parameter you first access the parameter menu P2 once

again press the right arrow to access the submenu’s and then use the up and down arrows to scroll

to the submenu you require and then use the right and left arrow to enter/exit the submenu. Once

in the submenu the value of the parameter can be changed by pressing the right arrow which causes

the parameter to flash, using the up and down arrow the value can be changed, once the correct

value is displayed this is confirmed by pressing the enter button as shown in example below:

! Tech TIP: for quicker adjustment once the parameter is flashing the right arrow can be pressed again and using the

left arrow and right arrow select the digit of the parameter which can using the up and down arrows individually

adjusted.

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6.3 The monitor menu

You can enter the monitor menu from the main menu by pushing the menu button right when the

location notation M1 is visible on the display.

The monitored signals carry the notation V1.X and are listed in the table below; the values are

updated once every 300 ms.

This menu is meant only for monitoring and values cannot be altered here.

Monitoring Value List Code Monitored Value Unit Description

V1 .1 Output frequency Hz Actual output frequency to the motor

V1 .2 Frequency reference Hz Target frequency to the motor

V1 .3 Motor speed RPM Calculated motor speed

V1 .4 Motor current A Actual current drawn by the motor

V1 .5 Motor torque % Calculated motor torque

V1 .6 Motor power % Calculated motor power

V1 .7 Motor voltage V Actual voltage applied to the motor

V1 .8 DC link voltage V DC voltage across the IGBT bridge

V1 .9 Unit temperature °C Heat sink temperature of the unit

V1 .10 Analogue input 1 AI1 input

V1 .11 Analogue input 2 AI2 Input

V1 .12 Analogue output Analogue output

V1 .13 DIN1, DIN2, DIN3 Digital input statuses

V1 .14 DIN4, DIN5, DIN6 Digital input statuses

V1 .15 R01,R0E1,D0E1 Output statuses

V1 .16 Lift speed m/s Calculated lift speed in m/s


15 15

6.4 Active faults menu (F4)

The active faults menu can be entered from the main menu by pushing the menu button right with

the location notation F4 be shown on the keypad display.

When the fault appears on the frequency converter location indicator F4, the fault code and a short

description of the fault will appear on the display, in addition to this the indication fault is displayed

and the red LED on the keypad starts to blink. If several faults occur simultaneously the list of active

faults can be browsed using the browser buttons.

There can be up to 10 active faults stored in the order of appearance and the display can be cleared

with the reset button. The fault will remain active until it is cleared with the reset button.

Additional information is recorded when the fault occurs and with the fault present this may be

accessed by pressing the right arrow and then using the browser buttons to access the additional

information such as motor voltage, output frequency, motor current, etc

6.5 Fault history menu (H5)

The Fault history menu can be entered on the main menu by pushing the menu button right when

the location notation H5 is displayed on the keypad.

Up to a maximum of 5 faults in the order of appearance can be stored, after entering the Fault

history the 1st Fault presented is the latest fault to occur. If more than 5 faults occur the newest

fault over writes the oldest fault. Once again, once in the Fault history menu access to each fault is

via the up and down browser buttons.

The fault of history can be cleared by pressing the enter button for approximately 3 seconds whist

the fault of history is displayed.

A list of the fault codes and possible causes is shown overleaf.

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7.0 Faults and Possible Causes

Fault Tracing Fault code

Fault Possible cause and the solution

1 Overcurrent The drive has detected too high a current supply to the motor. This is greater than 4 x In (drive current). Possible causes could be:

- A sudden increase the load such as the brake releasing when moving (loose cables, lock tips, etc).

- A short circuit in the motor or motor cables - faulty motor or wrong data for the motor - faulty contactor/faulty contactor pole - faulty encoder feedback/faulty screen on the encoder cable

2 Overvoltage The DC link voltage has exceeded 911 V DC. Possible causes could be:

- Open circuit resistor/faulty braking resistor connection - Faulty brake chopper - Parameter P2.4.1 is set to Off should be On, Run - Deceleration rates set to short - Input voltage too high

3 Earth fault Current measurement of the drive has detected that the sum of the motor phase currents is not 0. Possible causes could be:

- insulation failure in the motor cables - insulation breakdown/ failure in the motor

5 Charging switch On larger drives the capacitors have to be pre-charged on switch on, after the capacitors have been pre-charged, the pre-charge circuit is shorted out. This fault occurs when the start command has been given and the charge circuit is open, possible causes are:

- a faulty component - faulty operation, not in sequence

6 Emergency stop The emergency stop signal has been given from the option board, this feature is not used on digital advanced control, control systems

8 System fault The frequency converters troubleshooting system is unable to locate the fault.

9 Under voltage The DC link voltage is under the voltage limit of 333 V DC possible causes could be:

- loose/missing phase - supply voltage is too low - faulty isolator/isolator pole - internal fault in the drive

11 Output phase supervision

The current measurement circuit of the drive has detected that there is no current in 1 motor phase. Possible causes could be:

- loose/missing motor phase - faulty contactor/faulty contactor pole - faulty motor connection either in the control system or the

motor terminal box - faulty motor


17 17


Fault code Possible cause and the solution

13 Under temperature The drive has detected that the temperature of the heat sink has fallen below -10° C possible causes could be:

- software problem in the drive - the temperature in the control system has fallen below -10° C - internal fault in the drive

14 Over temperature The drive has detected that the temperature of the heat sink has risen above 90° C possible causes could be:

- ventilation in the controller/motor room - fan in the drive is not operational/blocked - ventilation to the control system is blocked

15 Motor stalled The drive has detected that the motor is in the stalled condition possible causes could be:

- brake is not lifting/energising - motor data is set incorrectly - motor identification has not been performed - the drive/motor rating is incorrect(contact factory)

16 Motor over temperature

The motor overheating has been detected by the drive from the motor temperature model. Possible causes could be:

- motor temperature model not set correctly - the motor is running overloaded

17 Motor under load Motor under load protection has tripped

22/23 EEPROM/checksum fault

When performing a write/read E2PROM the drive has detected an error

- parameter save fault - faulty operation - component failure

24 Change data warning

Changes may have occurred in the data due to the mains interruption

25 Microprocessor Watchdog fault

The microprocessor has a monitoring circuit to check the programme is running correctly. When the program does not run correctly the system faults with the Watchdog error. The possible causes could be:

- faulty operation due to interference - faulty component in the drive

29 Thermistor fault Not used

34 Device change This occurs on switch on when an option board has been changed. Press reset and the drive should not re-fault. If a Fault re-occurs, check the option card has been fitted correctly and in the correct slot.

18


Fault Possible cause and the solution

38 Device added This occurs when an option card has been fitted. Press reset and the drive should not re-fault. If a fault re-occurs, Check the option card has been fitted correctly and in the correct slot.

39 Device removed This occurs when an option card has been removed.

40 Device unknown This occurs when an option board is placed in the wrong slot or the option board or main control card is damaged.

41 IGBT temperature This occurs when there is localised heating in the IGBT, this can occur when the motor is overloaded or there is an instantaneous increase in the motor current. This can also occur when there is a component failure. Leave the drive to cool down and reset the drive. If this fault re-occurs, check items as in the over-current fault. If this fault does not clear contact the factory.

44 Device change This occurs on switch on when an option board has been changed. Press reset and the drive should not re-fault. If a Fault re-occurs, check the option card has been fitted correctly and in the correct slot.

45 Device added This occurs when an option card has been fitted. Press reset and the drive should not re-fault. If a fault re-occurs, Check the option card has been fitted correctly and in the correct slot.

51 External fault Not used(report to factory)

52 Keypad communication fault

The connection between the control keypad and the frequency converter is broken. Possible causes:

- Faulty keypad. - Faulty keypad connector on the reverse of the keypad. - Faulty cable inside the drive between the connector and the

control board.

53 Field bus communication fault

The data connection between the field bus master and the field bus board is disconnected.(Not used at present contact the factory)

54 SPI communication fault

The data connection between the control board and option board is faulty (not used at present contact the factory)

58 Minimum current This fault occurs if the actual motor current is below the minimum value set in P2.8.4.8, this parameter is set to ensure the motor is drawing current and has not released the brake and the lift is moving up the shaft out of control. Possible causes:

- Check the value is set correctly and is approximately 1/2 of the magnetising current.


19 19

8.0 Commissioning an Asynchronous (standard motor) Machine

8.1 Initial parameter settings and checks

At Digital Advanced Control, we always try to set the optimum parameters for the drive to be run

with the minimal of adjustments. This is dependent on the information given to us when

manufacturing the control panel. It is important that the following checks are carried out to ensure

the information given was correct and your parameter settings are set correctly within the drive to

suit site conditions.

Before switch on check the following:

1. Write down the following from the motor data plate.

a. The motor nominal current Amps.

b. The motor nominal voltage Volts.

c. The motor nominal frequency Hz.

d. The motor Cos Phi Θ Θ.

e. The motor nominal RPM RPM.

2. Check the motor is connected correctly on the high-speed winding and the connections are

securely fastened.

3. Ensure the brake, thermistors (if fitted) and motor fan (if fitted) are all connected correctly

and are securely fastened.

4. Ensure the control system is on inspection control and is capable of being run up and down

safely. Ensure your personal safety, once you are happy everything is safe switch the lift

on.

5. In the motor parameters enter the data recorded above. Set the motor current limit to

2xFLC of the motor.

6. Set the following motor parameters:

a. P2.2.1 nominal linear speed = (synchronous/motor RPM) x lift speed.

b. P.2.2.3.1 - levelling speed is set at 0.05 m/s

c. P.2.2.3.2 - full speed, set at 0.5 m/s (if the lift speed is below 0.5 m/s set to contract

speed).

d. P2.2.3.3 - intermediate speed, set at 0.5 m/s (if the lift speed is below 0.5 m/s set to

contract speed).

e. P2.2.3.4 - inspection speed, set to the desired speed but no greater than 0.25 m/s.

! Tech Tip: for a 4 pole motor the synchronous speed is 1500

rpm, for a 6 pole motor the synchronous speed is 1000 rpm

and for an 8 pole motor the synchronous speed is 750 rpm.

20

f. P2.3.1.1 - current limit FWD, in the brake control group. Set this parameter to 0.1 x

motor full load current.

g. P2.3.1.2 - current limit REV, in the brake control group. Set this parameter to 0.1 x

motor full load current.

h. P2.3.3.1 - DC brake current, in the DC brake control group. Set this parameter to 0.9

x motor full load current.

8.3 Direction check

7. Check it is okay to run the lift up and then switch the lift on, and run the lift up, the UPR

relay should energise and the lift should run up. If the lift does not run up swap 2 of the

phases on the motor and repeat the test.

8. Run the lift down and the DNR relay should energise and the lift should run down.

You are now ready to run the lift on inspection control.


21 21

8.4 Open loop commissioning

These instructions are for commissioning the lift with an open loop drive for lift speeds of 1 m/s and

less. The correct tuning is required to get good motor torque properties at low speeds, which will

give accurate floor levels and a smooth start and stop of the lift. The open loop sensor-less flux

vector Vacon drive utilises sophisticated algorithms in the software to give very good performance

on a low speed lift. Following these procedures will allow the tuning of the algorithms to give you

the optimum performance of the drive.

9. Check the start up procedure in 1 - 7 has been done

10. Check the speed of the lift and ensure the slowing limits have been set to the correct

distances shown on the drawings. If using a tape head ensure the floor levels and slowing

distances have been as accurately as practically possible to their operational distances.

11. Ensure the lift can run safely and trouble-free in the shaft i.e. not tipping locks, etc.

8.5 Setup High Speed

12. Place the lift on normal, and slowly increase the speed of the lift until high-speed is

obtained. If the lift begins to overshoot the floor level and then the Deceleration 1 P2.2.4.2

parameter should be increased to prevent this. Also monitor the output frequency and

ensure when running up no-load the output frequency is not 50 Hz or above, the output

frequency should be normally approximately 45 to 48 Hz.

8.6 Setup Levelling Speed

13. Check the parameter P2.2.3.1 levelling speed is set at 0.05 m/s (10 ft/m). Increase the

deceleration rate so that the lift runs for approximately 10 to 15 seconds on levelling speed,

now monitor the levelling speeds both in the up and down direction and ensure they are

within 5% of each other. . If the lift runs faster in the up and then to equalise speeds reduce

the parameter P2.1.3 motor nominal speed (200 RPM Max) in the motor parameters. If the

lift runs faster in the down then to equalise the speeds increase the parameter P2.1.3 motor

nominal speed (200 RPM Max).

14. Check the parameter P2.4.3 frequency limit in the drive control group is approximately 1Hz

above the levelling speed.

15. Monitor the speed in the up and down direction. The speed of the lift should be within 5% in

the up and down direction.

16. Now reduce the deceleration rate of the lift to ensure you maintain levelling speed for

approximately 1.5 seconds.

! Tech Tip: if the motor stalls when in the down direction (empty car) then increase P2.5.8

output voltage at zero frequency, this increases the voltage at low speed and overcomes the

resistive volt drop of the windings, increase to a maximum of 5%. Monitor The output current

at High and levelling speed and it should be the same, Increase or decrease Parameter P2.5.7

mid frequency Volts until they are equal.

22

8.7 Setup Lift Stopping

17. Adjust the parameter P2.3.3.4 DC braking frequency, in the mechanical brake control

parameters to ensure the lift stops accurately, reduce the frequency to obtain a more

accurate stop. Adjust the parameter P2.3.2.2 mechanical brake close delay so that the brake

energises approximately 0.25s after the lift has stopped. This will help obtain accurate floor

levelling.

18. Now ensure the lift stops smoothly and the brake is adjusted such that it performs it

required function, but the lift of the brake is reduced to minimise the noise on stopping.


23 23

8.8 Setup Lift Starting

19. Check now the start of the lift and it should be smooth and accelerate comfortably away

from the floor level. If the start of the lift drives against the brake the brake release time can

be reduced by adjusting the parameter P2.3.1.4 brake open delay in the brake control group,

so that the lift starts smoothly. If the lift rolls back then again this time can be increased.

20. Now adjust the acceleration rate if required by adjusting parameter P2.2.4.1 Acceleration 1,

in the speed curve 1 group. To increase the time to high speed, reduce this value. To

decrease the time taken to high speed, increase this value.

8.9 Brake Stall Check

21. An important function of the drive safety is to ensure that it is not possible to drive through

the brake, with the lift switched off isolate the supply via the circuit breaker for the brake

shown on the drawings. Switch the lift on and the lift should try to run, after approximately

2 seconds the drive should trip on F15 Motor Stall. The lift motor should not drive through

the brake. Reconnect the brake.

8.10 Final Checks

22. Now setup the floor levels on the lift and adjust to suit, and perform all the necessary safety

checks before the lift is placed into service.

24

9.0 Copying parameters

The parameters can be easily copied from one drive to another to allow ease of setting up or in a

rare case of a drive having to be changed allows the parameters that were stored in the existing

drive to be downloaded to the new drive.

Before any parameters can be successfully copied from one drive to another drive the drive has to

be stopped when the parameters are downloaded to it.

To upload the parameters place the lift on inspection and follow the instructions below:

To download the parameters is similar to uploading to keypad, instead of up to keypad, select down

from keypad with a lift on inspection control.


25 25

10.0 Parameters and Default Settings

Motor parameters Code Parameter default Note

P2.1.1 Nominal volts of the motor

To suit Set to motor nominal volts on the data plate

P2.1.2 Nominal frequency of the motor

To suit Set to motor nominal frequency on the data plate

P2.1.3 Nominal speed of the motor

To suit Set to the motor nominal RPM on the data plate(not the synchronous speed)

P2.1.4 Nominal current to the motor

In Amps Set to the motor nominal current on the data plate

P2.1.5 Motor cos-phi 0.78 Set to motor nominal cos phi on the data plate(if non use 0.78)

P2.1.6 Current limit 2.0 x In Amps Set to twice the motor nominal current on the data plate

Speed control parameters Code Parameter Default Note

P2.2.1 Nominal linear speed

To suit The nominal linear speed is the value which corresponds to the low speed at and the nominal frequency of the motor and is set in m/s. This value can be estimated from the calculation below. nominal linear speed = (synchronous/motor RPM) x lift speed.

P2.2.2 Speed reference selection

0 This parameter defines which frequency reference sources selected. The default is activity of the table below shows the four constant speed which can be selected.

DIN 4,5,6

Speed reference Priority

0,0,0

Levelling speed 0 Low priority

1,0,0

Full speed 1

0,1,0

Limited speed/override speed

2

0,0,1

Inspection speed 3 High priority

Speed reference (m/s) Code Parameter Default Note

P2.2.3.1 Levelling speed 0.05 Set to 0.05 m/s (10 ft./m)

P2.2.3.2 Full speed Contract Set to contract speed of the lift

P2.2.3.3 Limited speed Contract Set to contract speed of the lift

P2.2.3.4 Inspection speed 0.25 Set to 0.25 m/s or less

Speed reference(Hz) P2.2.4.1 To P2.2.2.9

Frequency representation of parameters above

Not applicable

Automatically set when adjusting speed references above(used to crosscheck speed settings)

26

Speed Curve 1

Code Parameter Default Note

P2.2.4.1 Acceleration 1 0.5 m/s² Acceleration rate of the lift in m/s²

P2.2.4.2 Deceleration 1 0.7 m/s² Deceleration rates of the lift in m/s²

P2.2.4.3 Accel Inc jerk 1 1.65 s Initial S-curve from 0 to acceleration

P2.2.4.4 Accel dec jerk 1 0.75 s S-curve from acceleration to speed

P2.5.4.5 Dec Inc jerk 1 0.75 s S-curve from speed to deceleration

P2.5.5.6 Dec dec jerk 1 1.25 s S-curve from deceleration to speed/0

Mechanical brake control parameters Code Parameter Default Note

P2.3.1.1 Current limit FWD 0.1 x In Sets the point the brake will energise once the current has been exceeded

P2.3.1.2 Current limit REV 0.1 x In Set as above (exactly same value)

P2.3.1.3 Torque limit FWD 0 Not used set to 0

P2.3.1.4 Torque limit REV 0 Not used set to 0

P2.3.1.5 Frequency limit FWD

0 Not used set to 0

P2.3.1.6 Frequency limit REV

0 Not used set to 0

P2.3.1.7 Brake opening delay

0.02s Sets how long before the brake energises after the current limit above is exceeded (set to 0 or very low).

P2.3.1.8 Mechanical brake reaction time

0.05 s The time and the speed references held to allow the brake to lift

P2.3.1.9 Max frequency brake closed

0.1 x mf The maximum frequency outputted if the brake has not energised(4Hz)

Closing brake control parameters


P2.3.2.1 Frequency limit close

0.01 x mf Sets the frequency that the drive must be below to instigate the start of the brake closing time

P2.3.2.2 Brake close delay 0.5 s The time that the brake closes after it reaches below the frequency limit close

DC brake control parameters


P2.3.3.1 DC braking current 0.8 x In The amount of DC injection into the motor to pre-energise the motor and also used to aid zeroing when stopping(maximum set to 90% of full load current)

P2.3.3.2 DC braking time at Start

0.6 s Time for the DC injection when starting

P2.3.3.3 DC braking time at stop

1.1 s Time for the DC injection when stopping

P2.3.3.4 DC braking start frequency

0.01 x mf The frequency at which the DC injection starts when decelerating to 0


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Drive Control Code Parameter Default Note

P2.4.1 brake chopper 1 When the drive is decelerating the motor, the inertia of the motor and the load are fed into an external brake resistor. This is the function of the brake chopper.

P2.4.2 Stop Function 2 This parameter means that the lift coasts to a stop when the drive has been called to stop when the lift is above the frequency set as in P2.4.3 otherwise the lift will ramp to a stop.

P2.4.3 Frequency Limit 0.1 x mf Frequency the lift coasts to a stop(should be above the levelling speed frequency of the lift or the lift will not stop correctly)

Motor Control Code Parameter Default Note

P2.5.1 Motor Control Mode

1 This parameter selects open loop control

P2.5.2 U/F optimisation 1 The voltage to the motor changes automatically which makes the motor produce sufficient torque to start and run at low frequencies. Automatic torque boost is used where a high starting torque is required.

P2.5.3 U/F Ratio Selection 2 The U/f curve can be programmed with three different points.

P2.5.4 Field Weakening Point

50Hz The field weakening point is the output frequency at which the output voltage reaches the value set in P2.5.5

P2.5.5 Voltage at FWP 100% The voltage at the field weakening point set as a percentage of the motor rated voltage

P2.5.6 U/F Curve Mid Point Frequency

0.1 x mf This parameter defines the midpoint frequency of the programmable curve. This parameter is adjusted by the auto tune

P2.5.7 U/F Midpoint Voltage

13% This parameter defines the midpoint voltage of the programmable curve. This parameter is adjusted between 10 and 13%

P2.5.8 Output voltage at 0Hz

2.5% This parameter defines the minimum voltage the drive will output at lower frequencies. This parameter is adjusted between 2.5 and 5%

P2.5.9 Switching frequency

10 kHz This is the modulation frequency of the drive. This can be increased to reduce noise in the motor, but can affect the rating of the drive and advice must be sought before increasing above 12 kHz

2.5.10 Overvoltage controller

0 Not used

2.5.11 under voltage controller

1 This monitors that the input voltage is not too low when the drive is running.

2.5.12 Measured RS voltage drop

To suit motor This parameter is a measure of the volt drop of the stator resistance between two phases

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Input Signals Code Parameter Default Note

P2.6.1 Start/stop logic 1 Start forward(DIN1) and start reverse(DIN2)

P2.6.2 DIN 3 function 7 0 = not used 1 = speed curve 2 2 = external fault close 3 = external fault open 4 = fault reset 5 = run enable 6 = emergency stop CC 7 = emergency stop OC 8 = override speed 9 = brake open enable 10 = speed reference 1 11 = speed reference 2 12 = speed reference 3

P2.6.3 DIN 4 function 0 Not used

P2.6.4 DIN 5 function 0 Not used

P2.6.5 DIE 1 function

10 Speed reference 1(hi speed)

DIE2 function 11 Speed reference 2(intermediate speed)

DIE3 function 12 Speed reference 3(inspection speed)

Output Signals


P2.7.1 Relay output 1 function(RO1)

3 This relay output is set when the drive is under the fault condition.

P2.7.2 Digital output 2 0 Not used

P2.7.3 Relay output 2 function

16 This relay output is set when the mechanical brake is determined to be lifted

P2.7.2 Digital output 1 0 Not used

P2.7.5 Analogue output function

0 Not used

P2.7.6 Analogue output filter time

1.00 Not used

P2.7.7 Analogue output inversion

0 Not used

P2.7.8 Analogue output minimum

0 Not used

P2.7.9 Analogue output scale

100 Not used

Protections


P2.8.1 response to external fault

3 0 = no response 1 = warning 2 = fault(stop according to 2.4.2) 3 = fault, stop by coasting

P2.8.2 response to under voltage fault

3 this trips when the drive voltage is below


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Protections


P2.8.3 Output phase supervision

3 This trips when there is unequal current in the phases of the motor

P2.8.4 Earth fault protection

3 This detects if one of the motor phases is heavily loaded relative to the other phases.

Motor faults

P2.8.5 Thermal protection in the motor

3 Sets to trip the drive when a thermal fault is detected

P2.8.6 ambient temperature factor

0% offsets the motor thermal protection based on the ambient temperature (contact the factory for use)

P2.8.7 Zero frequency current

40% Not used, Contact factory for use

P2.8.8 Time constant 45 Not used, contact factory for use

P2.8.9 motor duty cycle 100% not used, contact factory for use

P2.8.10 Stall protection 3 Stall protection for the motor

P2.8.11 Stall current limit In x 1.3 Automatically set when setting motor name plate data

P2.8.12 Stall time 15 Sec Maximum time allowed for the stall stage

P2.8.13 Max stall frequency 25 Hz Frequency must remain below this for a stall condition

P2.8.14 response to a thermistor fault

0 not used

P2.8.15 Response to field bus fault

0 not used

P2.8.16 Response to slot fault

0 Not used

P2.8.17 minimum current limit

no action not used

Auto restart

Not used

Not Used

Usually Not Required

Required for commissioning

Tel: +44 (0)1327 879334

NXL Lift Application Drive Manual - Digital Advanced … Drive NXL Manual...4 1.0Safety 1.1 Warnings...

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Transcript of NXL Lift Application Drive Manual - Digital Advanced … Drive NXL Manual...4 1.0Safety 1.1 Warnings...