Wiring Diagram - Omron K8AB-VW Series Product Manual

Connections

■ Wiring Diagram

Overvoltage and Undervoltage
Operation Diagram
Control power
Overvoltage setting (AL1)
Voltage input value
Undervoltage set value (AL2)
AL1 alarm indicator
Flashing
AL2 alarm indicator
Overvoltage (AL1) relay
Undervoltage (AL2) relay
T
T1: Power ON lock (1 s or 5 s)
T1
Note: 1. The K8AB-VW output relay is normally operative.
2. The power ON lock prevents unnecessary alarms from
being generated during the instable period when the power
is first turned on. There is no relay output during timer
operation.
Single-phase power
Load
Overvoltage and Undervoltage
Operation Diagram (Overvoltage Pre-
alarm Mode)
Control power
Overvoltage setting (AL1)
Overvoltage setting (AL2)
Voltage input value
Flashing
AL1 alarm indicator
Flashing
AL2 alarm indicator
Overvoltage (AL1) relay
Undervoltage (Al2) relay
T1: Power ON lock (1 s or 5 s)
T1
Note: 1. The K8AB-VW output relay is normally operative.
2. The power ON lock prevents unnecessary alarms from
being generated during the instable period when the power
is first turned on. There is no relay output during timer
operation.
4
Single-phase Voltage Relay
Hysteresis: Fixed at 5%
Hysteresis: Fixed at 5%
Flashing
Lit
T T: Operating time (0.1 to 30 s)
Lit
T: Operating time (0.1 to 30 s)
A1
Operating
power
A2
V1
V2
Input COM
V3
14 11
Output
AL1
12
24 21
Output
AL2
22
Hysteresis: Fixed at 5%
Hysteresis: Fixed at 5%
Lit
Lit
K8AB-VW
Overvoltage and Undervoltage
Operation Diagram (Undervoltage Pre-
alarm Mode)
Control power
Voltage input value
Undervoltage set value (AL1)
Undervoltage set value (AL2)
Flashing
AL1 alarm indicator
Flashing
AL2 alarm indicator
Undervoltage (AL1) relay
Undervoltage (AL2) relay
T1: Power ON lock (1 s or 5 s)
T1
Note: 1. The K8AB-VW output relay is normally operative.
2. The power ON lock prevents unnecessary alarms from
being generated during the instable period when the power
is first turned on. There is no relay output during timer
operation.
Model Measuring range
K8AB-VW1 6 to 60 mV AC/DC
10 to 100 mV AC/DC
30 to 300 mV AC/DC
K8AB-VW2 1 to 10 V AC/DC
3 to 30 V AC/DC
15 to 150 V AC/DC
K8AB-VW3 20 to 200 V AC/DC
30 to 300 V AC/DC
60 to 600 V AC/DC
Hysteresis: Fixed at 5%
Hysteresis: Fixed at 5%
Lit
Lit
Connection
V1-COM
V2-COM
V3-COM
V1-COM
V2-COM
V3-COM
V1-COM
V2-COM
V3-COM
Cat. No. N144-E1-01