Cat. No. N144-E1-02
Single-phase Voltage Relay
K8AB-VW
7
■
Operation and Setting Methods
Setting Ranges and Wiring Connections
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.
Note:
Models with DC power supply have a non-isolated power supply. The input and power supply
terminals are connected internally so the K8AB-VW will not operate normally if an unwanted
current path is created.
If an unwanted current path exists, use a model with an AC power supply or isolate with an
external power supply.
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.
Model
Measuring current
Wiring connection
K8AB-VW1
6 to 60 mV AC/DC
V1-COM
10 to 100 mV AC/DC
V2-COM
30 to 300 mV AC/DC
V3-COM
K8AB-VW2
1 to 10 V AC/DC
V1-COM
3 to 30 V AC/DC
V2-COM
15 to 150 V AC/DC
V3-COM
K8AB-VW3
20 to 200 V AC/DC
V1-COM
30 to 300 V AC/DC
V2-COM
60 to 600 V AC/DC
V3-COM
Load
Power supply
voltage
Voltage input
Signal output
Signal output
14
24
12
22
A1
A2
V1
V2
V3
11
21
AL1 relay
signal
output
AL2 relay
signal
output
COM
Single-phase power
ON
OFF
SW1
SW2
SW3
SW4
DIP switch
DIP Switch Functions
Note:
All pins are set to OFF at the factory.
SWITCH
ON
●
↑
OFF
❍
↓
Power ON
lock time
5 s
---
---
---
●
1 s
---
---
---
❍
Resetting
method
Automatic reset
---
---
●
---
Manual reset
---
---
❍
---
Operating
mode
AL1
AL2
Overvoltage
Undervoltage
●
●
---
---
Undervoltage Undervoltage
●
❍
---
---
Overvoltage
Overvoltage
❍
●
---
---
Overvoltage
Undervoltage
❍
❍
---
---
ON
OFF
4
3
2
1
