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Floatless Level Switch (Basic Type)
61F-G@
CSM_61F-G__DS_E_4_2
Basic Building-block Controllers That Mount
Directly to Panels for Easier Maintenance
• Easy maintenance with building-block Relay Units.
• Easy identification of operating status with LED operation
indicator.
• Lineup includes models for tropical regions and for high
temperatures. Achieve stable detection even in hightemperature environments.
Refer to Safety Precautions for Floatless Level
Controllers.
Model Number Structure
61F-@@
1 2
1. Control Application
G: Automatic water supply and drainage
G1: Automatic water supply with idling prevention or water
shortage alarm
G2: Automatic water supply and drainage with abnormal
water increase alarm
G3: Automatic water supply and drainage with full tank and
water shortage alarm
G4: Automatic water supply with water level indicator for
water supply tank and water receiving tank and
prevention of idling due to water shortage
I: Liquid level indication and alarm (no two-wire models)
2. Type
Blank:
L 2KM:
L 4KM:
H:
D:
R:
T:
General-purpose
Long-distance (for 2 km)
Long-distance (for 4 km)
High-sensitivity
Low-sensitivity
Two-wire
High-temperature
Position of
LED indicator
1
61F-G@
Ordering Information
Type
Set contents
General-purpose
Long-distance, 2 km
Long-distance, 4 km
Model
Model
Model
High-sensitivity
Model
Application G
61F-G Base x 1
61F-11@ Units x 1
61F-G
61F-GL 2KM
61F-GL 4KM
61F-GH
Application G1
61F-G1 Base x 1
61F-11@ Units x 2
61F-G1
61F-G1L 2KM
61F-G1L 4KM
61F-G1H
Application G2
61F-G2 Base x 1
61F-11@ Units x 2
61F-G2
61F-G2L 2KM
61F-G2L 4KM
61F-G2H
Application G3
61F-G3 Base x 1
61F-11@ Units x 3
61F-G3
61F-G3L 2KM
61F-G3L 4KM
61F-G3H
Application G4
61F-G4 Base x 1
61F-11@ Units x 5
MK3P Relay x 1
61F-G4
61F-G4L 2KM
61F-G4L 4KM
61F-G4H
Application I
61F-I Base x 1
61F-11@ Units x 2
61F-I
61F-IL 2KM
61F-IL 4KM
61F-IH
Relay Unit
61F-11@ Units x 1
61F-11
61F-11L 2KM
61F-11L 4KM
61F-11H
Type
Set contents
Low-sensitivity
2-wire
Tropical environments
Model
Model
Model
High-temperature
Model
Application G
61F-G Base x 1
61F-11@ Units x 1
61F-GD
61F-GR
61F-G-TDL
61F-GT
Application G1
61F-G1 Base x 1
61F-11@ Units x 2
61F-G1D
61F-G1R
61F-G1-TDL
61F-G1T
Application G2
61F-G2 Base x 1
61F-11@ Units x 2
61F-G2D
61F-G2R
61F-G2-TDL
61F-G2T
Application G3
61F-G3 Base x 1
61F-11@ Units x 3
61F-G3D
61F-G3R
61F-G3-TDL
61F-G3T
Application G4
61F-G4 Base x 1
61F-11@ Units x 5
MK3P Relay x 1
61F-G4D
61F-G4R
61F-G4-TDL
61F-G4T
Application I
61F-I Base x 1
61F-11@ Units x 2
61F-ID
---
61F-I-TDL
61F-IT
Relay Unit
61F-11@ Units x 1
61F-11D
61F-11R
---
61F-11T
Note: 1. When ordering, specify the desired operating voltage at the end of the model number.
Example: 61F-G [110/220 VAC]
Desired supply voltage
2. If you order with a standard model number, the corresponding Relay Units are also delivered as part of a set.
If you order the 61F-G, one 61F-11 Relay Unit is included in the set.
2
61F-G@
Specifications
■ Standard Models
Specifications
Items
General-purpose
Controller
Hightemperature
Controller
61F-@ (TDL)
(see note
1 and 2)
Long-distance
Controllers
High-sensitivity
Controllers
Low-sensitivity
Controller
Two-wire
Controller
61F-@L 2KM
(for 2 km)
61F-@L 4KM
(for 4 km)
(see note 1)
61F-@H
(see note 1)
61F-@D
(see note 1)
61F-@R
(see note 1)
For control of ordinary purified water
in cases where the
distance between
sewage pumps
and water tanks or
between receiver
tanks and supply
tanks is long or
where remote
control is required.
For control of liquids with high
specific resistance such as distilled water
For control of liquids with low specific resistance
such as salt water,
sewage water,
acid chemicals, alkali chemicals
For control of ordinary purified water
or sewage water
used in combination with Two-wire
Electrode Holder
(incorporating a
resistor of 6.8 kΩ)
It is possible to wire
with less than one
wiring against general 61F’s wiring.
24 VAC
8 VAC
61F-@T
(see note 1)
Controlling materials
and operating conditions
For control of ordinary purified water
or sewage water
For control of ordinary purified water
or sewage water
in cases where the
ambient temperature is high.
Supply voltage
100, 110, 120, 200, 220 or 240 VAC; 50/60 Hz
Operating voltage range 85% to 110% of rated voltage
InterElectrode voltage 8 VAC
InterElectrode current Approx. 1 mA AC max.
Power consumption
61F-G@: 3.5 VA max.; G1F-G1@, G1F-G2@, or G1F-I@: 5.5 VA max.; G1F-G3@: 7.5 VA max.; G1F-G4@: 14.5 VA max.
InterElectrode operate 0 to approx. 4 kΩ
resistance
0 to approx. 5 kΩ 0 to approx.
1.8 kΩ (for 2 km)
0 to approx.
0.7 kΩ (for 4 km)
Approx. 15 kΩ to
70 kΩ
(see note 5)
0 to approx.
1.8 kΩ
0 to approx. 1.1 kΩ
InterElectrode release Approx. 15 k to ∞ Ω Approx. 15 k to
resistance
∞Ω
4 k to ∞ Ω (for
2 km)
2.5 k to ∞ Ω (for
4 km)
Approx. 300 k to
∞Ω
Approx. 5 k to ∞ Ω Approx. 15 k to
∞Ω
Cable length
(see note 3)
1 km max.
2 km max.
4 km max.
50 m max.
1 km max.
Control output
2 A, 220 VAC (Inductive load: cosφ = 0.4)
5 A, 220 VAC (Resistive load)
600 m max.
800 m max.
Ambient temperature
Operating: –10 to 55°C (–10 to 70°C for 61F-@T)
Ambient humidity
Operating: 45% to 85% RH
Insulation resistance
(see note 4)
100 MΩ min. (at 500 VDC)
Dielectric strength
(see note 4)
2000 VAC, 50/60 Hz for 1 min.
Life expectancy
Electrical: 500,000 operations min.
Mechanical: 5,000,000 operations min.
Weight
61F-G@: Approx. 380 g, G1F-G1@, G1F-G2@, or G1F-I@: Approx. 750 g; G1F-G3@: Approx. 930 g;
G1F-G4@: Approx. 1,710 g
Note: 1. The @ in the model name represents G, G1, G2, G3, G4, and I.
2. The suffix “TDL” attached to the model name represents models designed for tropical regions (storage humidity of 45% to 90%). For
details, refer to Safety Precautions for Floatless Level Controllers.
3. The length when using completely-insulated, 600-V, 3-conductor (0.75 mm2) cabtire cables. Usable cable lengths will become shorter as
the cable diameter or number of conductors becomes larger. For details, refer to Safety Precautions for Floatless Level Controllers.
4. The insulation resistance and dielectric strength indicate values between power terminals and Electrode terminals, between power terminals and contact terminals, and between Electrode terminals and contact terminals.
5. Possible to use with 15 kΩ or less, however, this may cause reset failure.
6. High-sensitivity Controllers use advanced operation.
When the power supply voltage is applied, if there are some liquids between the electrodes (ground and operation electrodes), the internal relay will not operate.
When the power supply voltage is applied, if there are no liquids between the electrodes (ground and operation electrodes), the internal
relay will operate.
• Advanced Operation
With advanced operation, the internal relay
operates as soon as control power is
supplied to the G1F and is reset when current
flows between the poles. Wiring is the same
as for models with sequential operation.
3
61F-G@
Internal Circuit Diagrams
The schematic diagrams shown below typify the internal connections of the various 61F models. The designations Ta, Tb, and Tc (sometimes
referred to collectively as “U”) may occur more than once in a product, however, the “a” terminal is always an NO contact, a “b” terminal is an NC
contact, and the “c” terminal is the common terminal.
61F-GT
61F-G
0V
100, 110
or 120 V
200, 220
or 240 V
24 V
61F-GL
0V
100, 110
or 120 V
200, 220
or 240 V
61F-11
U
Relay Unit
8V
24 V
8V
U
Tb
S1
S0
E2
E1
S2
Ta
E3
Tc
Tb
S1
S0
24 V
8V
U
E2
S2
24 V
Tc
S1
S0
E3
Tb
E2
S2
E1
E3
61F-GR
0V
100, 110
or 120 V
200, 220
or 240 V
61F-11H U
Relay Unit
Ta
E1
61F-GD
61F-GH
(See note.)
0V
100, 110
or 120 V
200, 220
or 240 V
61F-11L U
Relay Unit
U
U
Tc
24 V
U
U
Ta
0V
100, 110
or 120 V
200, 220
or 240 V
61F-11T U
Relay Unit
24 V
0V
100, 110
or 120 V
200, 220
or 240 V
61F-11D U
Relay Unit
8V
24 V
61F-11R U
Relay Unit
8V
U
U
U
Ta
S0
U
U
U
Tc
Tb
S1
E2
S2
E1
E3
Ta
S0
Tc
Tb
S1
E2
S2
E1
E3
Ta
S0
Tc
Tb
S1
E1
S2
E3
4
61F-G@
Note: The 61F11H relay deenergizes when there is water present across the Electrodes, whereas the 61F relay energizes when there is water
present across the Electrodes.
Also, the terminal connections of those Controllers provided with LED indicators differ from those which have no indicators.
61F-11 Relay Units
Item
61F-11
61F-11T
61F-11L
61F-11H
61F-11D
61F-11R
Interchangeable with --general-purpose model (61F-11)
Provided
Provided
Not provided
Provided
Not provided
Color of band on name --plate
Red
Yellow
Blue
Black
Green
61F-11T
61F-11
E
S
8
S
7
8V
6
24 V
E
S
S
S
5
8
7
6
5
8V
Tr2
Tb2
Ta2
Tc2
1
Tc1
3
Ta1
61F-11H
(see note)
E
S
S
S
8
7
6
5
24 V 24 V
9
10
Tb1
Tb2
Tr2
61F-11D
4
6
2
Tc1
24 V
5
Tb1
4
24 V
Tr2
X
x
3
Ta1
S
Tr1
X
E
S
S
S
8
7
6
5
24 V
x
9
10
11
1
2
3
Tb2
Ta2
Tc2
Tc1
Ta1
Tb1
E
S
S
S
8
7
6
8V
Tr2
24 V
10
11
1
2
3
9
10
11
1
2
Ta2
Tb2
Tc2
Tc1
Tb1
Ta1
Tb2
Ta2
Tc2
Tc1
Ta1
Tr2
x
x
9
5
3
Tb1
4
24 V
Tr1
X
x
x
4
24 V
Tr1
X
x
Tr2
1
Tc2
8V
Tr2
S
7
61F-11R
24 V
Tr1
S
8
x
11
Ta2
E
8V
x
2
4
24 V
Tr1
x
11
24 V
X
x
10
4
24 V
Tr1
9
61F-11L
S
X
x
9
10
11
1
2
3
Tb2
Ta2
Tc2
Tc1
Ta1
Tb1
5
61F-G@
■ Connections
Automatic Water Supply and
Drainage Control
Basic Type
61F-G
Dimensions:
page 14
Automatic Water Supply Control
Automatic Drainage Control
Connections
Connections
61F-G
220-VAC power supply
R S T
24 V
110 V
MCCB
8V
220 V
61F-11
Relay Unit
61F-G
220-VAC Power supply
R S T
0V
0V
U
U
MCCB
61F-11
Relay Unit
U
U
U
Tc
S0
8V
220 V
U
Ta
24 V
110 V
Tb
S1
E2
S2
Ta
E1
Tc
S0
E3
Tb
S1
E2
S2
E1
E3
(See
note.)
Contactor
Contactor
PS-3S
Motor
protection
relay
Stop
Water supply
source
M
Water
tank
E1
E3
E2
Start
(See note.)
Motor
protection
relay
PS-3S
Start
M
P
Waste
water
P tank
E1
E3
E2
Stop
Reservoir
Note: Be sure to ground the common Electrode (the longest Electrode).
Note: Be sure to ground the common Electrode (the longest Electrode).
• Connect Tb to the contactor’s coil terminal.
• Power Supply Connections (for models with 110/220-V power)
110 VAC: Connect S0 and S1.
220 VAC: Connect S0 and S2.
• Connect Ta to the contactor’s coil terminal. (Do not connect Tb.)
• Power Supply Connections (for models with 110/220-V power)
110 VAC: Connect S0 and S1.
220 VAC: Connect S0 and S2.
Principles of Operation
Principles of Operation
Power
supply
Water
supply
P
Pump OFF
E1
Water tank
U
1
(U indicator ON)
Relay Unit Location
Power
supply
Relay Unit Location
Pump ON
E1
U
1
(U indicator ON)
Pump OFF
Pump ON
E2
(U indicator OFF)
E3
E2
E3
(U indicator OFF)
P
Water drainage
The pump stops (indicator ON) when the water level reaches E1
and starts (indicator OFF) when the water level drops below E2.
The pump starts (indicator ON) when the water level reaches E1
and stops (indicator OFF) when the water level drops below E2.
6
61F-G@
Automatic Water Supply Control with
Pump Idling Prevention and Automatic
Water Supply Control with Abnormal
Water Shortage Alarm
Basic Type
61F-G1
Dimensions:
page 14
Automatic Water Supply Control with Pump Idling Prevention
Connections
220 VAC power supply
R S T
Connections
61F-G1
0V
220 VAC power supply
R S T
U1
61F-11
24 V
Relay Unit
110 V
MCCB
Automatic Water Supply Control with Abnormal Water Shortage Alarm
U2
61F-11
Relay Unit
24 V
220 V
61F-G1
0V
110 V
MCCB
220 V
8V
U2
24 V
U1
61F-11
Relay Unit
24 V
U2
61F-11
Relay Unit
8V
U1
U2
U2
U1
U2
U1
So
Tb1 Ta1
S1
S2
E3
E2
U1
Tc2
E1
Tb2
E2'
So
E1' (E4)
Tb1 Ta1
S1
S2
E3
Tc2
E2
E1
Tb2
E2'
B
B
Alarm
Contactor
(See note.)
Push
button
switch
Stop
(See note.)
Contactor
PS-4S
Water
tank
M
E3'
P
E2'
E3
E 1'
E2
E1
Start
Note: Be sure to ground the common Electrode (the longest Electrode).
Test Operation/Recovering from Power Interruptions
If the supply water level is below E1' when starting operation or
when recovering from a power interruption, press the pushbutton to
momentarily close the circuit (U1 indicator turns ON) to start the
pump.
Principles of Operation
Relay Unit Location
E1'
E2'
U U
1 2
• Power Supply Connections
110 VAC: Connect S0 and S1.
220 VAC: Connect S0 and S2.
• Insert a pushbutton switch (NO) between E3 and E4.
• If the pump stops when the pushbutton switch is released, press
it again.
Test Operation/Recovering from Power Interruptions
If the supply water level is below E4 when starting operation or
when recovering from a power interruption, press the pushbutton
to momentarily close the circuit (U1 indicator turns ON) to start the
pump.
Principles of Operation
Water
supply
P
(U1 indicator OFF)
E1
Pump OFF
E2
B
P
Pump ON
E2
E3
Relay Unit Location
Pump ON
E1
E3 E4
Stop
Start
Water
shortage
Note: Be sure to ground the common Electrode (the longest Electrode).
L
Water tank
Pump OFF
E1
E2
P
(U1 indicator ON)
E3
Water
supply
Water
tank
Water tank
Power
supply
Water supply source
B
Water supply
source
M
• Power Supply Connections
110 VAC: Connect S0 and S1.
220 VAC: Connect S0 and S2.
• Insert a pushbutton switch (NO) between E1' and E3, as shown by
the dotted lines above.
• Do not press the pushbutton if the low-water alarm sounds and
the pump stops during normal operation (U1 indicator ON, water
below E2').
Water
shortage
Motor
protection
relay
Power
supply
PS-3S
Water
supply
source
Push
button
Alarm switch
PS-3S
Motor
protection
relay
E1' (E4)
(U2 indicator ON)
L
Water E4
shortage E3
U U
1 2
(U2 indicator ON)
(U2 indicator OFF)
(U1 indicator OFF)
(U2 indicator OFF)
• The pump starts (U2 indicator OFF) when the water level drops below E2
and stops (U2 indicator ON) when the water level reaches E1.
• When the level of the water supply source drops below E2', the pump
stops (U1 indicator OFF). Pump idling is prevented and the alarm sounds.
• The pump stops (U2 indicator ON) when the water level reaches E1 and
starts (U2 indicator OFF) when the water level drops below E2.
• If the water level drops below E4 for any reason, the pump stops (U1
indicator OFF) and the alarm sounds.
7
61F-G@
Automatic Drainage Control and
Water Supply with Abnormal
Water Increase Alarm
Basic Type
61F-G2
Dimensions:
page 14
Automatic Water Supply with Overfull Tank Alarm
Automatic Drainage Control with Overfull Tank Alarm
Connections
220 VAC power supply
R S T
Connections
61F-G2
0V
110 V
MCCB
220 V
220 VAC power supply
R S T
U1
24 V
61F-11
Relay Unit
24 V
U2
61F-11
Relay Unit
61F-G2
0V
110 V
MCCB
220 V
8V
24 V
U1
61F-11
Relay Unit
24 V
U2
61F-11
Relay Unit
8V
U2
U2
U2
So
U2
U1
So
Ta1 Tc1 Tb1 Ta2 Tc2
S1
S2
E3
E2
E1
E4
E3
E2
E1
E4
B
B
Alarm
(See note.)
Contactor
Water
tank
Water supply
source
E4
E1
E3
M
S2
Alarm
PS-4S
Motor
protection
relay
Ta1 Tc1 Tb1 Ta2 Tc2
S1
(See note.)
Contactor
U1
E2
Full
Stop
Start
Motor
protection
relay
PS-4S
Waste
water
tank
M
P
Full
Start
Stop
E4
E3 E 2
P
E1
Reservoir
Note: Be sure to ground the common Electrode (the longest Electrode).
Note: Be sure to ground the common Electrode (the longest Electrode).
• Connect Tb1 to the power supply.
• Power Supply Connections
110 VAC: Connect S0 and S1.
220 VAC: Connect S0 and S2.
• Connect Ta1 to the power supply.
• Power Supply Connections
110 VAC: Connect S0 and S1.
220 VAC: Connect S0 and S2.
Upper
limit
P
E4
Pump OFF
E1
Pump ON
E2
L
B
(U1 indicator ON)
Power
supply
Relay Unit Location
Water
supply
Principles of Operation
B
L
Upper
limit
U U
1 2
(U2 indicator ON)
(U2 indicator OFF)
E3
Relay Unit Location
E4
Pump ON
E1
Pump OFF
E2
E3
(U1 indicator ON)
Power
supply
Principles of Operation
U U
1 2
(U2 indicator ON)
(U2 indicator OFF)
P
Water drainage
• The pump starts (U2 indicator OFF) when the water level
drops below E2 and starts (U2 indicator ON) when the water
level reaches E1.
• If the water level reaches E4 for any reason, the alarm sounds
(U1 indicator ON).
• The pump starts (U2 indicator OFF) when the water level
reaches E1 and stops (U2 indicator ON) when the water level
drops below E2.
• If the water level reaches E4 for any reason, the alarm sounds
(U1 indicator ON).
8
61F-G@
Automatic Water Supply and Drainage
Control with Abnormal Water Increase and
Water Shortage Alarms
Basic Type
61F-G3
Dimensions:
page 14
Automatic Water Supply with Abnormal Water Increase and Water Shortage Alarms
Connections
Automatic Drainage Control with Abnormal Water Increase and Water Shortage Alarms
Connections
110 V
U1
61F-11
Relay Unit
24 V
U2
61F-11
Relay Unit
24 V
U3
61F-11
Relay Unit
220 V
0V
MCCB
110 V
24 V
U2
61F-11
Relay Unit
24 V
U3
61F-11
Relay Unit
8V
U1
U3
U1 U3
U2
U1
U2
U3
U1 U3
U2
U2
Tb
B1 B2
Lc
E1 E3 E5
Ta
LH LL E2 E4
Alarm
Upper
limit
S0 S1 S2
B
Tc
Tb
B1 B2
B
PL PL
(See
note.)
Contactor
Motor
protection
relay
Lc
E1 E3 E5
LH LL E2 E4
S0 S1 S2
Lower
limit
Tc
U1
61F-11
Relay Unit
220 V
8V
Ta
24 V
Lower
limit
MCCB
24 V
61F-G3
Upper
limit
0V
220 VAC power supply
R S T
Alarm
220 VAC power supply
R S T
61F-G3
PL PL
(See
note.)
Contactor
Motor
protection
relay
PS-5S
Water
supply
source
Full tank
Water
tank
E2
E5
M
E4 E3
P
E1
PS-5S
Full tank
Stop
Start
Water
shortage
Waste
water
tank
M
P
E2
E5
Start
Stop
E1
E4 E3
Water shortage
Reservoir
Note: Be sure to ground the common Electrode (the longest Electrode).
Note: Be sure to ground the common Electrode (the longest Electrode).
• Connect Tb to the contactor’s coil terminal.
• Power Supply Connections
110 VAC: Connect S0 and S1.
220 VAC: Connect S0 and S2.
• Connect Ta to the contactor’s coil terminal. (Do not connect
Tb.)
• Power Supply Connections
110 VAC: Connect S0 and S1.
220 VAC: Connect S0 and S2.
Relay Unit Locations
Upper
limit
P
B
(U1 indicator ON)
E1
Pump OFF
LH
Power
supply
Water
supply
Principles of Operation
U U U
1 2 3
Upper
limit
E1
(U2 indicator ON)
E2
Pump ON
Pump ON
E5
LH
B
(U1 indicator ON)
U U U
1 2 3
(U2 indicator ON)
E2
(U2 indicator OFF)
E3
E4
Relay Unit Locations
Power
supply
Principles of Operation
(U3 indicator OFF)
Lower
limit
LL
Pump OFF
E4
E5
• The pump stops (U2 indicator ON) when the water level
reaches E2 and starts (U2 indicator OFF) when the water level
drops below E3.
• If the water level rises to E1 for any reason, the upper-limit
indicator turns ON and the alarm sounds (U1 indicator ON).
If the water level drops below E4 for any reason, the lower-limit
indicator turns ON and the alarm sounds (U3 indicator OFF).
(U2 indicator OFF)
E3
B
Lower
limit
(U3 indicator OFF)
LL
B
• The pump starts (U2 indicator ON) when the water level
reaches E2 and stops (U2 indicator OFF) when the water level
drops below E3.
• If the water level rises to E1 for any reason, the upper-limit
indicator turns ON and the alarm sounds (U1 indicator ON).
If the water level drops below E4 for any reason, the lower-limit
indicator turns ON and the alarm sounds (U3 indicator OFF).
9
61F-G@
Automatic Water Supply Control with Water
Source Level Indication, Prevention of
Pump Idling Due to Water Shortage, and
Indication of Water Level in Tank
Basic Type
61F-G4
Dimensions:
page 14
Automatic Water Supply Control with Water Source Level Indication, Prevention of Pump Idling Due to Water Shortage, and Indication of Water Level in Tank
Connections
• Power Supply Connections
110 VAC: Connect S0 and S1.
220 VAC: Connect S0 and S2.
• Insert a pushbutton switch (NO)
between E2 and E8, as shown by
the dotted lines above.
• Do not press the pushbutton if the
low-water alarm sounds and the
pump stops during normal
operation (water below E3).
220 V power supply
R S T
61F-G4
0V
24 V
U5
61F-11
Relay Unit
220 V
24 V
U1
61F-11
Relay Unit
0V
24 V
U2
61F-11
Relay Unit
24 V
U3
61F-11
Relay Unit
24 V
U4
61F-11
Relay Unit
110 V
MCCB
MK3P
Relay
(See
note 2.)
U2
X
110 V
220 V
Test Operation/Recovering from
Power Interruptions
U1
If the supply water level is below E2
when starting operation or when
recovering from a power interruption
(U2 indicator OFF), press the
pushbutton to momentarily close the
circuit to start the pump.
X
U4
8V
U3 X U1 U5 X
U2 U5
U3
U4
LL1 LL2 LH1 LH2 BL1 BL2 BH1 BH2 E4
S0
Elevated
tank water
shortage
S1
S2
Water supply Elevated
source lower tank
limit
repletion
TC
TC2
B
TA
E8
Water supply Elevated
Water supply Elevated
source upper tank water source lower tank
limit
shortage
limit
repletion
Water
supply
source
upper limit
E3
E7
E2
E6
E1
E5
Pushbutton
switch
LL1 LL2 LH1 LH2 BL1 BL2 BH1 BH2
Contactor
PS-5S
(See note 1.)
Motor
protection
relay
Full tank
PS-4S
Water
supply
source
M
P
E2
E8
E3
E1
Upper limit
Start
Stop
Lower limit
Water
tank
E4
E5
E6
E8
E7
Stop
Start
Water
shortage
Note: Be sure to ground the common Electrode (the longest Electrode).
Principles of Operation
• Insert four Electrodes in the water supply source and five Electrodes in the elevated water tank.
Relay Unit Location
• The lower-limit indicator for the water supply source remains ON while the water source level is below E3 (U2 indicator
OFF).
U U U U
• When the water level rises to E2, the lower-limit indicator turns OFF (U2 indicator ON) and the pump is ready for
1 2 3 4
operation.
• The upper-limit indicator in the water supply source lights when the water level reaches E1 (U3 indicator ON).
U Power
5 supply
• The water-shortage indicator for the elevated tank remains ON while the water level in the elevated tank is below E7.
The indicator turns OFF (U1 indicator ON) when the water level rises to E7.
• The pump stops (U5 indicator ON) when the water level reaches E5 and starts (U5 indicator OFF) when the water level
drops below E6.
• If the water level reaches E4 for any reason, the abnormal water increase indicator for the elevated tank turns ON (U4
indicator ON).
10
61F-G@
■ Connection with Three-phase Four-line Circuit
When supplying power from N-phase to the Controller in three-phase four-line circuit, refer to the following diagrams.
Line voltage (R-S, S-T, or R-T): 380 or 415 VAC
Phase voltage (N-R, N-S, or N-T): 220 or 240 VAC
61F-G@, 220 or 240 VAC
Water Supply
Power source
380 or 415 VAC
R S T N *
Transformer
61F-11
24 V
Relay Unit
U
8V
Ta
Tc
S0
A
Tb
S1
S2
S3
*
Rated voltage:
S0-S2: 220 or 240 VAC
Electromagnetic switch
Water tank
E1
E2
Water supply source
M
E1
E2
Stop
Start
E3
P
Note: Be sure to ground terminal E3.
11
61F-G@
Liquid Level Indication and Alarm
Basic Type
61F-I
Dimensions:
page 14
Liquid Level Indication and Alarm
Connections
• Power Supply Connections
110 VAC: Connect S0 and S1.
220 VAC: Connect S0 and S2.
220-VAC power supply
R S T
61F-I
0V
110 V
MCCB
220 V
24 V
61F-11
Relay Unit
U1
24 V
61F-11
Relay Unit
U2
8V
U2
TC
U1
B
S0
U1
L3
S1
Alarm
B
U2
L1
L2
S2
E3
E2
Intermediate Upper limit
PL
PL
E1
Lower limit
PL
(See note.)
PS-3S
Upper alarm
Water supply
source
M
Water
tank
E1
E3
E2
Intermediate
Lower alarm
P
Note: Be sure to ground the common Electrode (the longest Electrode).
Principles of Operation
Relay Unit Location
Water tank
B
LH
Upper
limit
LM
Middle
LL
Lower
limit
(U1 indicator ON)
E1
Power
supply
• When the water level drops below
E2, the lower-limit indicator turns
ON and the alarm sounds (U2
indicator OFF).
• When the water level reaches E2,
the alarm turns OFF and the
intermediate indicator turns ON
(U2 indicator ON).
• When the water level rises to E1,
the upper-limit indicator turns ON
and the alarm sounds (U1
indicator ON).
U U
1 2
(U1 indicator OFF)
(U2 indicator ON)
B
E2
(U2 indicator OFF)
E3
12
61F-G@
■ Two-Wire Connections
Automatic Water Supply and
Drainage Control
Basic Type
61F-GR
Automatic Water Supply Control
Automatic Drainage Control
Connections
Connections
220-VAC power supply
R S T
220-VAC power supply
R S T
61F-GR
61F-GR
0V
0V
110 V
61F-11R
24 V Relay Unit
220 V
8V
MCCB
110 V
61F-11R
24 V Relay Unit
220 V
8V
MCCB
U
U
U
U
Ta
U
Tc
S0
U
Tb
S1
E1
S2
Ta
E3
Tc
S0
(See
note.)
S1
E1
S2
E3
(See
note.)
Contactor
Contactor
Tb
PS-3SR
R
Motor
protective
relay
Water supply
source
M
Water
tank
Stop
E2
E1
E3
Start
P
PS-3SR
Motor
protective
relay
Waste
water
tank
M
P
R
E2
Start
Stop
E1
E3
Reservoir
Note: Be sure to ground the common Electrode (the longest Electrode).
Note: Be sure to ground the common Electrode (the longest Electrode).
• Connect Tb to the contactor’s coil terminal.
• Power Supply Connections
110 VAC: Connect S0 and S1.
220 VAC: Connect S0 and S2.
• With 2-wire connections, only two wires are required between
the 61F-GR and Electrode Holder, but three wires are required
for the Electrodes.
• The Electrode Holder must be specified for 2-wire connections.
(Resistance R is built into Electrode Holders for 2-Wire
Connections.)
• The Relay Unit must also be specified for 2-wire connections.
• Connect Ta to the contactor’s coil terminal. (Do not connect
Tb.)
• Power Supply Connections (for models with 110/220-V power)
110 VAC: Connect S0 and S1.
220 VAC: Connect S0 and S2.
• With 2-wire connections, only two wires are required between
the 61F-GR and Electrode Holder, but three wires are required
for the Electrodes.
• The Electrode Holder must be specified for 2-wire connections.
(Resistance R is built into Electrode Holders for 2-Wire
Connections.)
• The Relay Unit must also be specified for 2-wire connections.
Principles of Operation
Principles of Operation
Water
supply
P
Pump OFF
E1
(U indicator ON)
Pump ON
E1
Pump OFF
Pump ON
E2
E2
(U indicator OFF)
E3
The pump stops (U indicator ON) when the water level reaches
E1 and starts (U indicator OFF) when the water level drops below
E 2.
(U indicator ON)
(U indicator OFF)
P
E3
Water drainage
The pump starts (U indicator ON) when the water level reaches
E1 and stops (U indicator OFF) when the water level drops below
E 2.
13
61F-G@
Dimensions
Note: All units are in millimeters unless otherwise indicated.
■ Standard Models
61F-G
M3 screw
Mounting Holes
Four, 6-dia mounting holes
Four, 6-dia holes
61F-G1
61F-G2
61F-I
Mounting Holes
M3 screw
Four, 6-dia mounting holes
Four, 6-dia holes
61F-G3
M3 screw
Mounting Holes
Four, 6-dia mounting holes
Four, 6-dia holes
61F-G4
M3 screw
Mounting Holes
Four, 6-dia mounting holes
Four, 6-dia holes
ALL DIMENSIONS SHOWN ARE IN MILLIMETERS.
To convert millimeters into inches, multiply by 0.03937. To convert grams into ounces, multiply by 0.03527.
In the interest of product improvement, specifications are subject to change without notice.
14
Terms and Conditions Agreement
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.
Warranties.
(a) Exclusive Warranty. Omron’s exclusive warranty is that the Products will be free from defects in materials and workmanship
for a period of twelve months from the date of sale by Omron (or such other period expressed in writing by Omron). Omron
disclaims all other warranties, express or implied.
(b) Limitations. OMRON MAKES NO WARRANTY OR REPRESENTATION, EXPRESS OR IMPLIED, ABOUT
NON-INFRINGEMENT, MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE OF THE PRODUCTS. BUYER
ACKNOWLEDGES THAT IT ALONE HAS DETERMINED THAT THE
PRODUCTS WILL SUITABLY MEET THE REQUIREMENTS OF THEIR INTENDED USE.
Omron further disclaims all warranties and responsibility of any type for claims or expenses based on infringement by the
Products or otherwise of any intellectual property right. (c) Buyer Remedy. Omron’s sole obligation hereunder shall be, at
Omron’s election, to (i) replace (in the form originally shipped with Buyer responsible for labor charges for removal or
replacement thereof) the non-complying Product, (ii) repair the non-complying Product, or (iii) repay or credit Buyer an amount
equal to the purchase price of the non-complying Product; provided that in no event shall Omron be responsible for warranty,
repair, indemnity or any other claims or expenses 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. Return of any Products by Buyer must be approved in writing by Omron before shipment. Omron Companies shall
not be liable for the suitability or unsuitability or the results from the use of Products in combination with any electrical or
electronic components, circuits, system assemblies or any other materials or substances or environments. Any advice,
recommendations or information given orally or in writing, are not to be construed as an amendment or addition to the above
warranty.
See http://www.omron.com/global/ or contact your Omron representative for published information.
Limitation on Liability; Etc.
OMRON COMPANIES SHALL NOT BE LIABLE FOR SPECIAL, INDIRECT, INCIDENTAL, OR CONSEQUENTIAL DAMAGES,
LOSS OF PROFITS OR PRODUCTION OR COMMERCIAL LOSS IN ANY WAY CONNECTED WITH THE PRODUCTS,
WHETHER SUCH CLAIM IS BASED IN CONTRACT, WARRANTY, NEGLIGENCE OR STRICT LIABILITY.
Further, in no event shall liability of Omron Companies exceed the individual price of the Product on which liability is asserted.
Suitability of Use.
Omron Companies shall not be responsible for conformity with any standards, codes or regulations which apply to the
combination of the Product in the Buyer’s application or use of the Product. At Buyer’s request, Omron will provide applicable
third party certification documents identifying ratings and limitations of use which apply to the Product. This information by itself
is not sufficient for a complete determination of the suitability of the Product in combination with the end product, machine,
system, or other application or use. Buyer shall be solely responsible for determining appropriateness of the particular Product
with respect to Buyer’s application, product or system. Buyer shall take application responsibility in all cases.
NEVER USE THE PRODUCT FOR AN APPLICATION INVOLVING SERIOUS RISK TO LIFE OR PROPERTY OR IN LARGE
QUANTITIES WITHOUT ENSURING THAT THE SYSTEM AS A WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS,
AND THAT THE OMRON PRODUCT(S) IS PROPERLY RATED AND INSTALLED FOR THE INTENDED USE WITHIN THE
OVERALL EQUIPMENT OR SYSTEM.
Programmable Products.
Omron Companies shall not be responsible for the user’s programming of a programmable Product, or any consequence
thereof.
Performance Data.
Data presented in Omron Company websites, catalogs and other materials 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 user must correlate
it to actual application requirements. Actual performance is subject to the Omron’s Warranty and Limitations of Liability.
Change in Specifications.
Product specifications and accessories may be changed at any time based on improvements and other reasons. It is our
practice to change part numbers when published ratings or features are changed, or when significant construction changes are
made. However, some specifications of the Product may be changed without any notice. When in doubt, special part numbers
may be assigned to fix or establish key specifications for your application. Please consult with your Omron’s representative at
any time to confirm actual specifications of purchased Product.
Errors and Omissions.
Information presented by Omron Companies has been checked and is believed to be accurate; however, no responsibility is
assumed for clerical, typographical or proofreading errors or omissions.
2015.9
In the interest of product improvement, specifications are subject to change without notice.
OMRON Corporation
Industrial Automation Company
http://www.ia.omron.com/
(c)Copyright OMRON Corporation 2015 All Right Reserved.