Omron 61F-11, Manual

Page: 10 / 15

61F-G
@
10
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
Contactor
Water
supply
source
Motor
protection
relay
MCCB
R S
M
T
220 V power supply 61F-G4
Water
tank
Water
supply
source
upper limit
Water supply
source lower
limit Water supply
source lower
limit Water supply
source upper
limit Elevated
tank
repletion Elevated
tank
repletion Elevated
tank water
shortage Elevated
tank water
shortage
PS-5S
U
2
U
3
U
2
MK3P
Relay
(See
note 2.)
U
4
X U
5
U
1
X U
3
U
4
X U
1
U
5
PS-4S
(See note 1.)
LL
1
LL
2
LH
1
X
LH
2
BL
1
BL
2
BH
1
BH
2
LL
1
LL
2
LH
1
LH
2
BL
1
BL
2
BH
1
BH
2
E
4
E
3
E
2
E
1
S
0
S
1
S
2
T
C
T
C2
B TA E
7
E
6
E
5
Push-
button
switch
E
4
P
220 V
110 V
0 V
24 V
24 V
220 V
110 V
0 V
24 V
24 V
24 V
8V
E
2
E
8
E
7
E
3
E
8
U
5
U
1
U
2
U
3
U
4
E
5
E
6
Stop
Lower limit
Upper limit
Start
E
1
Full tank
Stop
Start
Water
shortage
61F-11
Relay Unit
61F-11
Relay Unit
61F-11
Relay Unit
61F-11
Relay Unit
61F-11
Relay Unit
E
8
Note: Be sure to ground the common Electrode (the longest Electrode).
• Power Supply Connections
110 VAC: Connect S
0
and S
1
.
220 VAC: Connect S
0
and S
2
.
• Insert a pushbutton switch (NO)
between E
2
and E
8
, 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 E
3
).
If the supply water level is below E
2
when starting operation or when
recovering from a power interruption
(U
2
indicator OFF), press the
pushbutton to momentarily close the
circuit to start the pump.
Test Operation/Recovering from
Power Interruptions
Connections
U
2
U
1
U
3
U
4
Power
supply
U
5
• Insert four Electrodes in the water supply source and five Electrodes in the elevated water tank.
• The lower-limit indicator for the water supply source remains ON while the water source level is below E
3
(U
2
indicator
OFF).
• When the water level rises to E
2
, the lower-limit indicator turns OFF (U
2
indicator ON) and the pump is ready for
operation.
• The upper-limit indicator in the water supply source lights when the water level reaches E
1
(U
3
indicator ON).
• The water-shortage indicator for the elevated tank remains ON while the water level in the elevated tank is below E
7
.
The indicator turns OFF (U
1
indicator ON) when the water level rises to E
7
.
• The pump stops (U
5
indicator ON) when the water level reaches E
5
and starts (U
5
indicator OFF) when the water level
drops below E
6
.
• If the water level reaches E
4
for any reason, the abnormal water increase indicator for the elevated tank turns ON (U
4
indicator ON).
Relay Unit Location
Principles of Operation