Alternate Operation Relay 61F-AN/-APN2dtec.com.vn/download/PDF/61f-an_apn2.pdfAlternate Operation...

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Alternate Operation Relay

61F-AN/-APN2Increases Motor Life and Enables Operating Only One Pump When Cleaning Tanks or as an Emergency Measure for Pump Failures.

• Enables highly efficient operation by automatically switching between two pumps.

• Both Compact Models (61F-AN) and Compact Plug-in Models (61F-APN2) available.

Note: A changeover switch must be included in the sequence to enable operating only one pump.

Refer to Safety Precautions for Floatless Level Controllers.

■ Ordering Information

Note: Ask your OMRON representative about power supply voltages.

■ Specifications

Ratings

Contact Ratings (with G2RK Keep Relay)

Characteristics

Type Model

Alternate Operation Relay

61F-AN

61F-AN

61F-APN2

61F-APN2

Supply voltage 100, 110, 200, 220 VAC; 50/60 Hz

Operating voltage range 85% to 110% of rated voltage

Power consumption 3 VA

Item Resistive load (cos = 1) Inductive load (cos = 0.4, L/R = 7 ms)

Max. load 3 A at 250 VAC 1.5 A at 250 VAC

Carry contact 3 A

Max. operating current 3 A

Max. switching capacity 750 VA 375 VA

Response time Operate: 25 ms max.Release: 30 ms max.

Minimum pulse width Min. ON time: 40 ms min.Min. OFF time: 200 ms min.

Insulation resistance 100 M min. at 500 VDC (between each terminal and power supply)

Dielectric strength 2,000 VAC, 50/60 Hz for 1 min (between each terminal and power supply)

Vibration resistance 10 to 55 Hz, 1-mm double amplitude

Shock resistance 10 G (approx. 98 m/s2)

Life expectancy Mechanical: 1,000,000 operations (at operating frequency of 1,800 operations/hour)Electrical: 100,000 operations min. (rated load)

Ambient temperature Operating: –10 C to 55 C

Ambient humidity Operating: 45% to 85% RH

Weight 61F-AN: 215 g61F-APN2: 190 g


61F-AN/-APN2When power is applied to the input terminals 2 and 7, the power willbe transmitted through the alternate operation control circuit and out-put circuit to turn ON the contacts (NO condition) between 1 and 3and between 6 and 8. This state will be held by a magnetic lock evenwhen the power to the input terminals is turned OFF.

When power is again applied to the input terminals, the contact (NOcondition) will turn OFF and the contacts (NC condition) between 1and 4 and between 5 and 8 will turn ON. This state will be held evenwhen the power to the input terminals is turned OFF.

The above operation repeats each time power is applied to the inputterminals (power application pulse response system). Refer to thefollowing internal circuit diagram.

Time Chart for Alternate Operation of Water SupplyWhen the 61F-A@ Alternate Operation Relay is combined with a Floatless Level Controller, the Relay output contacts switch (break) while the contactor is engaged. The Relay output contacts will not switch simultaneously with engaging the contactor. In other words, the contactor or other load is switched with the output contacts from the Floatless Level Controller, not directly with the output contacts from the 61F-A@ Alternate Operation Relay. Using water supply as

an example, after the control level is reached and the 61F Controllers’ NC contacts turn OFF (break), the Relay’s output contacts switch. The next time the 61F Controller’s NC contacts turn ON, the output contacts have already switched. Thus, only the continuous carry current needs to be considered for the load capacity of the 61F-APN2, enabling application to the rated carry current of 3 A.

61F-AN (Compact Model)Used in combination with a 61F-G@N Floatless Level Controller.

Operation• The 61F-AN is used in combination with a Floatless Level

Controller for alternate operation when using two pumps for level control in one location.

• When power is applied to the input terminals S0 and S2, NO contacts Tc1 and Ta1, and NO contacts Ta2 and Tc2 are turned ON via the alternate operation control circuit and the output circuit. This state is held with a magnetic lock even if the power supply is turned OFF.

• When power is applied to the input terminals again, the NO contacts are turned OFF and the NC contacts Tc1 and Tb1 and NC contacts Ta2 and Tc2 are turned ON. This state is held with a magnetic lock even if the power supply is turned OFF.

• The above operation is repeated each time the power supply is turned ON. (Power Supply Pulse Response Method)

Internal Circuit Diagram

3

4

5

6

1

8

2

7

X/c1

X/c2

Pow

er c

ircui

t

Alte

rnat

e op

erat

ion

cont

rol c

ircui

t

Out

put c

ircui

t

G2RK (61F-APN2)

Ta

Tb

Power

OutputTc1-Ta1

61F

61F-AN, -APN2

OutputTc1-Tb1

Contactor 1

Contactor 2

Xc2

Xc1

X

Pow

er c

ircui

t

Alte

rnat

e op

erat

ion

cont

rol c

ircui

t

Out

put c

ircui

t

G2RK(61F-AN)(See note.)

Tb1

Tc1

Ta1

Tb2

Tc2

Ta2

S0

S2

Note: The above diagram is for a rated voltage of 200 or 220 VAC. Power is supplied to S0 and S1 for 100 or 110 VAC.


61F-AN/-APN2Connections (Refer to connection diagram.)

• Connect output terminal Ta in the 61F-GN example (page 4) to input terminal S2 on the 61F-AN.

• Connect coil terminal A on each of the two contactors to the switching contact terminals Ta1 and Tb1 on the 61F-AN.

• Use the switching contact terminals Tb2 and Ta2 on the 61F-AN to control the operation of the two pumps.

• The power supply of the 61F-AN is 100, 110, 200, or 220 VAC. Be sure to use the correct power supply.

61F-APN2 (Compact Plug-in Model)Used in combination with a Floatless Level Controller.

Operation• The 61F-AN2 is used in combination with a Floatless Level

Controller for alternate operation when using two pumps for level control in one location.

• When power is applied to the input terminals 2 and 7, NO contacts 1 and 3, and NO contacts 6 and 8 are turned ON via the alternate operation control circuit and the output circuit. This state is held with a magnetic lock even if the power supply is turned OFF.

• When power is applied to the input terminals again, the NO contacts are turned OFF and the NC contacts 1 and 4 and NC contacts 5 and 8 are turned ON. This state is held with a magnetic lock even if the power supply is turned OFF.

• The above operation is repeated each time the power supply is turned ON. (Power Supply Pulse Response Method)

Note: Refer to Connecting Sockets, Mounting Brackets, DIN Rails for the applicable Sockets.

Connections (Refer to connection diagram.)

• Connect output terminal Ta in the 61F-G example (page 5) to input terminal 2 on the 61F-APN2.

• Connect coil terminal A on each of the two contactors to the switching contact terminals 3 and 4 on the 61F-APN2.

• Use the switching contact terminals 5 and 6 on the 61F-APN2 to control the operation of the two pumps.

• The power supply of the 61F-APN2 is 100, 110, 200, or 220 VAC. Be sure to use the correct power supply.

Output contact betweenTc1-Tb1 and Tc2-Tb2

Power supply voltage

200 ms min.40 ms min.

Output contact betweenTc1-Ta1 and Tc2-Ta2

Xc2

Xc14

3

1

5

6

8

X

2

7

Pow

er c

ircui

t

Alte

rnat

e op

erat

ion

cont

rol c

ircui

t

Out

put c

ircui

t

G2RK(61F-APN2)

Output contact between1-3 and 6-8

Output contact between1-4 and 5-8

Power supply voltagebetween 2-7

200 ms min.40 ms min.


61F-AN/-APN2■ Connections

Combining with the 61F-GN

61F-AN

Dimensions:

page 17

Combining with the 61F-GN

Water supply source

MCCB

R S

M1

T

Commercialvoltage 220 VAC

61F-AN

61F-GN

(See note.)

S2

S0

Ta1

Tc1

Tb1

Ta1

Tc1

Tb1

L2

L1

To power source T

X

M2

Contactor 2Contactor 1

P1

A

A

P2

Out

put

circ

uit

Alte

rnat

e op

erat

ion

cont

rol c

ircui

t

PS-3S

E1

E2E3

S1

S2

S0

Tb

Tc

Ta

E3

E2

E1

8 V

UU24 V 61F-11N

Relay Unit

Transformer

U

0 V

110 V

220 V

The relay operation can be monitored if indicators are connected as shown by the dotted line.

Water tank

Pow

erci

rcui

t

Motorprotec-tion relay

Motorprotectionrelay

Note: Be sure to ground the common Electrode E3 (the longest Electrode).

Water Supply

Wastewater tank

Reservoir

MCCB

R S

M1

T


61F-AN

61F-GN

(See note.)

S2

S0

Ta1

Tc1

Tb1

Ta1

Tc1

Tb1

L2

L1

To power source T

X

M2


P1 P2

A

A

Out

put

circ

uit

Alte

rnat

e op

erat

ion

cont

rol c

ircui

t

S1

S2

S0

Tb

Tc

Ta

E3

E2

E1

8 V

UU24 V 61F-11N

Relay Unit

Transformer

U

0 V

110 V

220 V

PS-3S

E2E3

E1


Pow

erci

rcui

t




Drainage


61F-AN/-APN2

Combining with the 61F-G

61F-APN2

Dimensions:

page 17

Combining with the 61F-G

MCCB

R S T

Commercial voltage 220 VAC

61F-G

(See note.)

TbTcTa E2

S2S1S0 E3

E1

8 V

U

U

U

24 V

0 V

110 V

220 V

61F-11Relay Unit

2187

345

L1

6

L2

To power source T

61F-APN2

Water supply source

M1 M2


P1 P2

PS-3S

E1

E2E3


Electroniccircuit

Water tank




Connection SocketsPF083A (Front-connecting)PL08 (Rear-connecting)

Water Supply

MCCB

R S T


61F-G

(See note.)

TbTcTa E2

S2S1S0 E3

E1

8 V

U

U

U

24 V

0 V

110 V

220 V

61F-11Relay Unit

2187

345

L1

6

L2

To power source T

61F-APN2

Wastewater tank

Reservoir

M1 M2

Contactor 2

Contactor 1

P1 P2

E2E3

PS-3S

E1


Electroniccircuit




Connection SocketsPF083A (Front-connecting)PL08 (Rear-connecting)

Drainage


61F-AN/-APN2

Combining with the 61F-G1N

61F-AN

Dimensions:

page 17


Water supply source

MCCB

R S

M1

T


61F-G1N

61F-AN

(See note.)

Alarm

S0

S1

S2

E1

E2

E3

E1'

E2'

Tc2

Tb2

Ta1

Tb1

S2

S0

Ta1

Tc1

Tb1

Ta2

Tc2

Tb2

L2

L1

X

P1

Contactor 1

M2 P2

Out

put

circ

uit

Alte

rnat

e op

erat

ion

cont

rol c

ircui

t

PS-3S

PS-3S

E1

E2E3

E2'E3

E1'

B

Transformer

8 V

U1 (E4)

U1

U2

U2

U2

U124 V

24 V

0 V

110 V

220 V

61F-11NRelay Unit

61F-11NRelay Unit


Pow

erci

rcui

t

Contactor2

Water tank

To power source T




Water Supply

The 61F-G1N is to be used only for supplying water and cannot be used for alternate operation for controlling drainage.

Drainage


61F-AN/-APN2

Combining with the 61F-G1

61F-APN2

Dimensions:

page 17


Water supply source

MCCB

R S

M1

T


(Seenote.)

P1

Contactor 1

M2 P2

PS-3S

E1

E2E3

E2'E3

E1'

61F-G1

S0 Tb1 Ta1 Tc2 Tb2

S1 S22187

3

L1L2

456

E3 E2 E1 E2' E1'(E4)

220 V

110 V

0 V 24 V

24 V

To power source T

61F-APN2

B

U1

U1

U1U2

U2

U2

8 V

61F-11Relay Unit

61F-11Relay Unit


Electroniccircuit

Alarm

Contactor2

Water tank




Water Supply

The 61F-G1N is to be used only for supplying water and cannot be used for alternate operation for controlling drainage.

Water Drainage


61F-AN/-APN2


61F-AN

Dimensions:

page 17


Water supply source

MCCB

R S

M1

T


61F-G2N

61F-AN

(See note.)

S0

S1

S2

E1

E2

E3

E4

S2

S0

Ta1

Ta2

Tc2

Ta1

Tc1

Tb1

Tc1

Tb1

Ta1

Tc1

Tb1

L2

L1

X

M2


P1 P2

Out

put

circ

uit

Alte

rnat

e op

erat

ion

cont

rol c

ircui

t

Transformer

8 V

U1U2

U1

U2

24 V

24 V

0 V

110 V

220 V

Alarm

61F-11NRelay Unit

U2

B

PS-4S

E4

E2E3

E1


Pow

erci

rcui

t

61F-11NRelay Unit

Water tank

To power source T




Water Supply

Wastewater tank

MCCB

R S

M1

T


61F-G2N

61F-AN

(Seenote.)

S0

S1

S2

E1

E2

E3

E4

S2

S0

Ta1

Ta2

Tc2

Ta1

Tc1

Tb1

Tc1

Tb1

Ta1

Tc1

Tb1

L2

L1

X

M2

Contactor 1

P1 P2

Out

put

circ

uit

Alte

rnat

e op

erat

ion

cont

rol c

ircui

t

PS-4S

E4

E2E3

E1

Transformer

8 V

U1U2

U1

U2

24 V

24 V

0 V

110 V

220 V

Alarm

61F-11NRelay Unit

U2

B


Pow

erci

rcui

t

61F-11NRelay Unit

Contac-tor 2

To power source T




Drainage


61F-AN/-APN2


61F-APN2

Dimensions:

page 17


Water supply source

MCCB

R S

M1

T


M2

Contactor 2

Contactor 1

P1 P2

PS-4S

E4

E2E3

E1

61F-G2

(See note.)

S2 E3 E2 E4E1S1

S0

8 V

U2

U2

U1

U1

U2

24 V

24 V

0 V

110 V

220 V

61F-11Relay Unit

B

2187

345

L1

6

L2

To power source T

61F-APN2

Ta1 Tc1 Tb1 Ta2 Tc2


Electroniccircuit

61F-11Relay Unit

Alarm

Water tank




Water Supply

Wastewater tank

MCCB

R S

M1

T


M2


P1 P2 PS-4S

E4

E2E3

E1

61F-G2

(See note.)

S2 E3 E2 E4E1S1

S0

8 V

U2

U2

U1

U1

U2

24 V

24 V

0 V

110 V

220 V

B

Alarm

2187

345

L1

6

L2

To power source T

61F-APN2

Ta1 Tc1 Tb1 Ta2 Tc2


Electroniccircuit

61F-11Relay Unit

61F-11Relay Unit




Drainage


61F-AN/-APN2


61F-AN

Dimensions:

page 17


Water supply source

MCCB

R S

M1

T


61F-G3N

61F-AN

(See note.)

S0

Ta

Tc

Tb

B1

B2

S1

S2

LH

Lc

LL

E1

E2

E3

E4

E5

PL

B

PL

S2

S0

Ta1

Tc1

Tb1

Ta1

Tc1

Tb1

L2

L1

Power supply

X

M2

Contactor 1

Contactor2

P1 P2

Out

put

circ

uit

Alte

rnat

e op

erat

ion

cont

rol c

ircui

t

PS-5S

E1

E2E3E4

E5

Transformer

8 V

U3

U1

U3

U1

U2

U2

U1

U2

U3

Lamp

Lamp

Alarm Bell

24 V

24 V

0 V

110 V

220 V

61F-11NRelay Unit

To 61F-11N Relay Unit


To power source T

Pow

erci

rcui

t61F-11N

Relay Unit

61F-11NRelay Unit

Upperlimit

Lower limit



Water tank


Water Supply

Wastewater tank

Reservoir

MCCB

R S

M1

T

61F-G3N

61F-AN

(See note.)

S0

Ta

Tc

Tb

B1

B2

S1

S2

LH

Lc

LL

E1

E2

E3

E4

E5

PL

B

PL

S2

S0

Ta1

Tc1

Tb1

Ta1

Tc1

Tb1

L2

L1

X

P1

Contactor2

Contactor 1

M2 P2

Out

put

circ

uit

Alte

rnat

eop

erat

ion

cont

rol c

ircui

t

Transformer

8 V

U3

U1

U3

U1

U2

U2

U1

U2

U3

Lamp

Lamp

Alarm Bell

24 V

24 V

0 V

110 V

220 V

E1E2

E3E4E5

PS-5S



Pow

erci

rcui

t

To power source T

To 61F-11N Relay Unit

61F-11NRelay Unit

61F-11NRelay Unit

61F-11NRelay Unit

Power supply

Upperlimit

Lower limit




Drainage


61F-AN/-APN2


61F-APN2

Dimensions:

page 17


Water supply source

MCCB

R S

M1

T


61F-G3

(See note.)

S1

Tc Tb B1 E1LcB2 E3

S2 E2LLLH E4S0

PL

Ta E5

P1

Contactor2

Contactor 1

M2 P2

PS-5S

E1

E2E3E4

E5

8 V

U2 U2U1

U1

U3 U3

U1

U2

Lamp

24 V

24 V

0 V

110 V

220 VU3

24 V

PL

Lamp

B

2187

345

L1

6

L2

To power source T

61F-APN2


Electroniccircuit

61F-11NRelay Unit

61F-11NRelay Unit

61F-11NRelay Unit

Alarm Bell

Power supply

Upperlimit

Lower limit



Water tank


Water Supply

Wastewater tankReservoir

MCCB

R S

M1

T

61F-G3

S1

Tc Tb B1 E1LcB2 E3

S2 E2LLLH E4S0

PL

Ta E5

P1 M2 P2

8 V

U2 U2U1

U1

U3 U3

U1

U2

Lamp

24 V

24 V

0 V

110 V

220 VU3

24 V

PL

Lamp

B

2187

345

L1

6

L2

61F-APN2

E1E2

E3E4E5

PS-5S


To power source T

The relay operation can be monitored if indicators are connected as shown by the dotted line. 61F-11N

Relay Unit

61F-11NRelay Unit

61F-11NRelay Unit

Electroniccircuit

(Seenote.)

Alarm Bell

Power supply

Upperlimit

Lower limit

Contactor2

Contactor 1




Drainage


61F-AN/-APN2


Alternate Operation Relay61F-AN

Dimensions:

page 17


Contactor 1

Water supply source

MCCB

R S

M1

T


61F-G4N

61F-AN

PS-5S

PS-4S

E1

BL1

BH2

BL2

LH1

LL1

LL2

LH2

Tc

Tc2

B

TA

S0

S1

S2

BH1

BL1

BH2

BL2

LH1

LL1

LL2

LH2

BH1E4

E8

E2

E1

E3

E5

E6

E7

E8

(See note.)

S2

S0

Ta1

Tc1

Tb1

Ta2

Tc2

Tb2

Ta2

Tb2

61F-11NRelay Unit

61F-11NRelay Unit

61F-11NRelay Unit

61F-11NRelay Unit

61F-11NRelay Unit

220 V

U4

U3

U2

U5

U2

U4

U5

U1

U1

U3

U5

U2

X

U4

U1

U3

X

X

110 VMY3 Relay

0 VTransformer

8 V

24 V

24 V

X

X

P1

Contactor 2

M2 P2

Out

put

circ

uit

Alte

rnat

e op

erat

ion

cont

rol c

ircui

t

E4

E5

E2

E7E8

E6

E3E8


To power source T

Pow

erci

rcui

tTo 61F-11N Relay Unit

Elevated tank repletion

Water supply source upper limitWater supply source lower limit

Elevated tank water shortage

Elevated tank repletion

Water supply source upper limitWater supply source lower limit




Water tank


Water Supply

The 61F-G4N is to be used only for supplying water and cannot be used alternately for controlling drainage.

Drainage


61F-AN/-APN2


Alternate Operation Relay61F-APN2

Dimensions:

page 17


61F-G4

U2U3

U2

U5

U1

U2

U3

U4

MK3PRelay

U4XU5U1XU3U4XU1 U5

LL1

2187

345

L1

6

L2

LL2 LH1

X

LH2 BL1 BL2 BH1 BH2

LL1 LL2 LH1 LH2 BL1 BL2 BH1 BH2

E4 E3 E2 E1

S0 S1 S2 TC TC2 B TA E8 E7 E6 E5

200 V

100 V

0 V24 V

24 V

220 V

110 V

0 V 24 V

24 V

24 V

Electroniccircuit

Contactor 1

Water supply source

MCCB

R S

M1

T

To power source T

61F-APN2

PS-5S

PS-4S

E4

E1

(See note.)

P1

Contactor 2

M2 P2

8 V

61F-1Relay Unit

61F-1Relay Unit

61F-1Relay Unit

61F-1Relay Unit

61F-1Relay Unit

E7E8

E2

E3E8

E5

E6



Elevated tankrepletion

Water supplysourcelower limit

Water supplysourceupper limit


Elevated tankrepletion

Water supplysourcelower limit

Water supplysourceupper limit



Water tank


Water Supply

The 61F-G4N is to be used only for supplying water and cannot be used alternately for controlling drainage.

Drainage


61F-AN/-APN2

At 220 VACWater Supply (When Combined with 61F-G1P)

*Be sure to ground terminal 15.

P1

Power source220 VAC

R S T

Water supply source

M1

Electromagnetic switch 1

4 356

1 287

L1L2

Water tank

Electroniccircuit

61F-APN2

For example, operation indication is possible by the connection as shown by the dotted line.

P2M2

E2

E3

E1

Control circuit

Control circuit

E3

E2

E1

24 V

24 V0 V

220 V 8 V

Alarm

8 9 15 1 11 2

Pushbutton switch

Electromagneticswitch 2

A A

Knife switch

14 12 345

U2 U1

B

U1

61F-G1P

7 6

10

U1

U2

U2

*

THR THR

PS-3S

PS-3S


61F-AN/-APN2

Water Supply (When Combined with 61F-GP-N)


P1

E2

E3

E1

Knife switch

Power source220 VAC

R S T

0 V

220 V8 V

24 V Control circuit

U

M2P2

Water supply source

M1

4 356

1 287

L1L2

10 11 1 2

Water tank

61F-GP-N

Electroniccircuit

61F-APN


Electromagnetic switch 1 Electromagnetic switch 2

A A

9 3

8

U

67

4

5

Water supply source

*

THR THR PS-3S

U


61F-AN/-APN2Water Drainage (When Combined with 61F-G2P)


P1

Power source220 VAC R S T

Water supply source

M1


4 356

1 287

L1L2

Electroniccircuit

61F-ANP2

Knife switch


P2M2

E1

E3

E4


Control circuit

24 V

24 V0 V

220 V8 V

Alarm

8 15 10 119 1

E2

A A

14 6 127

2

4 3

U1U2

61F-G2P

U1

U2

U2

5

B

*

Control circuit

THRTHR

PS-4S


61F-AN/-APN2

DimensionsNote: All units are in millimeters unless otherwise indicated.

■ Safety PrecautionsRefer to Safety Precautions for All Level Controllers.

5

3

5

100 70

10 5

40450

11

50

65

54

35.4

4 min.

3.4

10

4 min.

90

39

56

9 Twelve, M3.5 sems screws

Terminal cover

32

6011

14142542

(See note.)

61F-AN

Note: Dimensions are with the DIN rail mounting (sliding) bracket attached.

49.4

38 70

84

61F-APN2

PF083A

91

61F-APN2

In the interest of product improvement, specifications are subject to change without notice.

ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.

To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.

http://www.ia.omron.com/ C-1(c)Copyright OMRON Corporation 2007 All Rights Reserved.

Safety Precautions for Floatless Level Controllers

!WARNING

Precautions for Safe UseDo not use the Controller in locations subject to explosive or combustible dust, combustible gas, flammable vapors, corrosive gas, excessive dust, salt water spray, or water drops.

Precautions for Correct Use● Operating Environment

• Use and store the Controller within the rated ambient operating temperature, ambient operating humidity, and storage temperature ranges specified for individual models.

• Use the Controller according to the characteristics specified for individual models for vibration, shock, exposure to water, and exposure to oil.

• Install the Controller as far as possible from devices that generate strong high-frequency noise (such as high frequency welders or sewing machines).

● Tighten Terminal Screws to the Specified TorqueWhen fitting crimping terminals to terminal screws, use a tightening torque of between 0.45 and 0.6 N·m

● Use a Power Supply with Minimal Voltage Fluctuation

Avoid connection to a power supply with a voltage fluctuation greater than or equal to +10% or 15%.

● Consider the Ambient Temperature

Do not install the Controller where it may be exposed to a temperature of 55 C or higher or a humidity of 85% or higher. In particular, install the Controller away from heat-generating equipment incorporating coils or windings. Do not use the Controller outdoors or in locations subject to high humidity, corrosive gases, or direct sunlight.

● Avoid Vibration and Shocks

Do not subject the Controller to vibration or shocks which can cause chattering problems. Do not install the Controller near contactors that generate severe shocks while the contactors are in operation.

● Do Not Test with a Megaohmmeter

During insulation resistance measurements, never apply the megaohmmeter across the Electrode terminals.

● Use Self-holding Electrodes

• Use Self-holding (E2) Electrodes when contactor open/close control is carried out. If E1 Electrodes are used, ripples on the liquid surface can cause incorrect contactor operation and damage to the contacts.

• Be sure to turn OFF the power supply before replacing the plug-in models.

● Short Wiring in Electrode Circuit

• Keep the wires connecting the Controller to Electrode Holders as short as possible. If long leads are used, the floating capacity of the leads, and abnormal surges or noise in the Electrode circuit can cause malfunctions.

• The thicker the cables, the shorter the permitted wiring length. The length of the cable connecting the Controller and Electrode is specified in the Controller datasheet as a guideline assuming that a 600-V VCT 0.75-mm2, 3-core cabtire cable is used. Test results indicate that the actual wiring length using VCT 3.5-mm2, 3-core cable laid over the ground is 50% of the specified length for

general-purpose applications and 80% of the specified length for long-distance applications. When selecting cable specifications, remember that the wiring length is further decreased for underground cables and larger diameter cables because of the increased floating capacity with the ground.

● Keep Power Cables Separate from the Electrode Circuit

Do not pass the leads for the Electrode circuit through the same duct, or near to, high-tension cables or power cables. This can cause noise which leads to malfunctions.

● Ground Correctly

Ground the common Electrode terminal to reduce the effects of noise.

● Use a Surge Suppressor

Connect a 61F-03B(-04B) Surge Suppressor with the Controller’s Electrode terminals to protect the circuit from surges. This is particularly important in lightning-prone areas. To further improve protection, install a commercial surge suppressor in the power supply to eliminate surges in the power system.(Refer to 61F-03B/-04B.)

● Consider the Response Times

The Controller requires a response time not exceeding 80 ms for operation or 160 ms for reset. Take these response times into account in cases where precise sequence control is required.

● Consider the Liquids to Be Controlled

• The Controller cannot be used for any liquid that has almost no conductivity such as sewage containing oil.

• The Controller cannot be used for any flammable liquid such as gasoline, kerosene, or heavy oil.

● Do Not Share Electrodes

Do not connect a single Electrode to more than one Controller. If the phases of the 8-VAC Electrode-circuit power supplies are opposite to each other, as shown in Fig. 1, an internal close circuit (return circuit) is created (indicated by the arrows). The Controller may malfunction regardless of the liquid level when the Controller power is turned ON. This problem can be overcome by matching the power supply phases, as shown in Fig. 2, but in this configuration the internal impedance of the Controller calculated from the Electrode will be approximately half as large as the internal impedance of a single Controller. Maintain sufficient clearance between Electrodes connected to separate Controllers so that they do not interfere with each other. Common leads, however, can be connected to the ground Electrode.

Do not touch the terminals while power is being supplied. Doing so may occasionally result in electric shock.

Do not attempt to disassemble, repair, or modify the product while the power is being supplied. Doing so may occasionally result in electric shock.

Fig. 2 Match PhasesT S

S0 S2

R61F

S0 S2

61F

8 VAC8 VAC

Fig. 1 Internal Closed Circuit

X X



ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.

To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.


Safety Precautions for All Level ControllersRefer to the Safety Precautions section for each product for specific precautions applicable to that product.

!WARNINGDo not touch the terminals while power is being supplied.Doing so may possibly result in electric shock.

Do not attempt to disassemble, repair, or modify the product while power is being supplied. Doing so may occasionally result in electric shock.

■ Precautions for Safe UseIn order to ensure safe operation, be sure to observe the following points.

1. Use a power supply voltage within the specified range.2. Do not use the Controller in locations subject to flammable gases

or objects.3. Insert the Socket until it securely clicks into place.4. Do not short the load connected to the output terminals.5. Do not connect the power supply in reverse.6. Do not use the Controller in locations subject to explosive or

combustible dust, combustible gas, flammable vapors, corrosive gas, excessive dust, salt water spray, or water drops.

■ Precautions for Correct UseFor details, refer to Technical Guide for Level Controllers.


2007.3

OMRON CorporationIndustrial Automation Company

http://www.ia.omron.com/ (c)Copyright OMRON Corporation 2007 All Rights Reserved.


Read and Understand This Catalog

Please read and understand this catalog before purchasing the products. Please consult your OMRON representative if you have any questions or comments.

Warranty and Limitations of Liability

WARRANTYOMRON's exclusive warranty is that the products are free from defects in materials and workmanship for a period of one year (or other period if specifi ed) from date of sale by OMRON.

OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, REGARDING NON-INFRINGEMENT, MERCHANTABILITY, OR FITNESS FOR PARTICULAR PURPOSE OF THE PRODUCTS. ANY BUYER OR USER ACKNOWLEDGES THAT THE BUYER OR USER ALONE HAS DETERMINED THAT THE PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE. OMRON DISCLAIMS ALL OTHER WARRANTIES, EXPRESS OR IMPLIED.

LIMITATIONS OF LIABILITYOMRON SHALL NOT BE RESPONSIBLE FOR SPECIAL, INDIRECT, OR CONSEQUENTIAL DAMAGES, LOSS OF PROFITS, OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS, WHETHER SUCH CLAIM IS BASED ON CONTRACT, WARRANTY, NEGLIGENCE, OR STRICT LIABILITY.

In no event shall responsibility of OMRON for any act exceed the individual price of the product on which liability is asserted.

IN NO EVENT SHALL OMRON BE RESPONSIBLE FOR WARRANTY, REPAIR, OR OTHER CLAIMS REGARDING THE PRODUCTS UNLESS OMRON'S ANALYSIS CONFIRMS THAT THE PRODUCTS WERE PROPERLY HANDLED, STORED, INSTALLED, AND MAINTAINED AND NOT SUBJECT TO CONTAMINATION, ABUSE, MISUSE, OR INAPPROPRIATE MODIFICATION OR REPAIR.

Application Considerations

SUITABILITY FOR USEOMRON shall not be responsible for conformity with any standards, codes, or regulations that apply to the combination of products in the customer's application or use of the product. At the customer's request, OMRON will provide applicable third party certifi cation documents identifying ratings and limitations of use that apply to the products. This information by itself is not suffi cient for a complete determination of the suitability of the products in combination with the end product, machine, system, or other application or use.

The following are some examples of applications for which particular attention must be given. This is not intended to be an exhaustive list of all possible uses of the products, nor is it intended to imply that the uses listed may be suitable for the products:

• Outdoor use, uses involving potential chemical contamination or electrical interference, or conditions or uses not described in this catalog.

• Nuclear energy control systems, combustion systems, railroad systems, aviation systems, medical equipment, amusement machines, vehicles, safety equipment, and installations subject to separate industry or government regulations.

• Systems, machines, and equipment that could present a risk to life or property.

Please know and observe all prohibitions of use applicable to the products.

NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE OMRON PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM.

Disclaimers

CHANGE IN SPECIFICATIONSProduct specifi cations and accessories may be changed at any time based on improvements and other reasons.

It is our practice to change model numbers when published ratings or features are changed, or when signifi cant construction changes are made. However, some specifi cations of the product may be changed without any notice. When in doubt, special model numbers may be assigned to fi x or establish key specifi cations for your application on your request. Please consult with your OMRON representative at any time to confi rm actual specifi cations of purchased product.

DIMENSIONS AND WEIGHTSDimensions and weights are nominal and are not to be used for manufacturing purposes, even when tolerances are shown.

ERRORS AND OMISSIONSThe information in this catalog has been carefully checked and is believed to be accurate; however, no responsibility is assumed for clerical, typographical, or proofreading errors, or omissions.

PERFORMANCE DATA Performance data given in this catalog is provided as a guide for the user in determining suitability and does not constitute a warranty. It may represent the result of OMRON’s test conditions, and the users must correlate it to actual application requirements. Actual performance is subject to the OMRON Warranty and Limitations of Liability.

PROGRAMMABLE PRODUCTSOMRON shall not be responsible for the user's programming of a programmable product, or any consequence thereof.

COPYRIGHT AND COPY PERMISSIONThis catalog shall not be copied for sales or promotions without permission.

This catalog is protected by copyright and is intended solely for use in conjunction with the product. Please notify us before copying or reproducing this catalog in any manner, for any other purpose. If copying or transmitting this catalog to another, please copy or transmit it in its entirety.

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