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Operation and Setting Methods
Setting Ranges and Wiring Connections
Model
Measuring current
6 to 60 mV AC/DC
K8AB-VW1
10 to 100 mV AC/DC
30 to 300 mV AC/DC
1 to 10 V AC/DC
K8AB-VW2
3 to 30 V AC/DC
15 to 150 V AC/DC
20 to 200 V AC/DC
K8AB-VW3
30 to 300 V AC/DC
60 to 600 V AC/DC
Connections
1. Input
Connect the input between terminals V1-COM, V2-COM, or V3-COM, depending on the input
voltage.
Malfunctions may occur if the input is connected to unused terminals and the Unit will not operate
correctly.
2. Power Supply
Connect the power supply to terminals A1 and A2.
3. Outputs
AL1 (SPDT relay) is output to terminals 11, 12, and 14.
AL2 (SPDT relay) is output to terminals 21, 22, and 24.
Note: Use the recommended ferrules if using twisted wires.
DIP Switch Settings
The power ON lock time, resetting method and operating mode are set using the DIP switch located on the bottom of the Unit.
ON
OFF
SW1
SW2
DIP switch
SW3
SW4
Wiring connection
V1-COM
V2-COM
V3-COM
V1-COM
V2-COM
V3-COM
V1-COM
V2-COM
V3-COM
DIP Switch Functions
SWITCH
5 s
Power ON
lock time
1 s
Automatic reset
Resetting
method
Manual reset
AL1
AL2
Overvoltage
Undervoltage
Operating
Undervoltage
Undervoltage
mode
Overvoltage
Overvoltage
Overvoltage
Undervoltage
Note: All pins are set to OFF at the factory.
Single-phase power
Load
4
ON ● ↑
3
ON
OFF ❍ ↓
OFF
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K8AB-VW
A1
Power supply
voltage
A2
V1
Voltage input
COM
V2
V3
14
11
Signal output
AL1 relay
12
signal
output
24
21
Signal output
AL2 relay
22
signal
output
2
1
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