Omron K8AB-PH Product Manual page 4

Connections
■ Wiring Diagram
Phase Sequence and Phase Loss Operation Diagram
Phase Loss Operation
L1
Input L2
L3
Relay
Note: 1. Motor load phase loss cannot be detected. To detect motor
load phase loss, use the K8AB-PM or K8AB-PA.
2. The K8AB-PH output relay is normally operative.
Nomenclature
■ Front
Power indicator
Relay status indicator
4
Phase-sequence Phase-loss Relay
Phase Sequence Operation
L1 L3 L1
L3 L2 L2
L2 L1 L3
K8AB-PH
L1 L2 L3
Load
Indicators
Item
Power indicator (PWR: Lit when power is being supplied.
Green)
Relay status indicator (RY: Lit when relay is operating (normally lit).
Yellow)
The power
supply is
shared with
the rated in-
put voltage.
Input
L1
L2
L3
14
11
Output
Alarm
12
Meaning
Cat. No. N145-E1-01