Setting Knobs; Dip Switch Functions - Omron K8AB-AS Product Manual

Nomenclature
■ Front
Power indicator
Relay status indicator
Alarm indicator
■ Function Selection DIP Switch
ON
Cat. No. N142-E1-01
Current knob (SV)
Hysteresis knob (HYS.)
Operating time knob (T)
Startup lock time knob
(LOCK)
SW1
SW2
DIP Switch
SW3
SW4
Indicators
Item
Power indicator (PWR: Lit when power is being supplied.
Green)
Relay status indicator (RY: Lit when relay is operating.
Yellow)
Alarm indicator (ALM: Red) Lit when there is an overcurrent or
undercurrent.
The indicator flashes to indicate the
error status after the input has
exceeded the threshold value while the
operating time is being clocked.

Setting Knobs

Item
Current knob (SV) Used to set the current to 10% to 100%
of maximum rated input current.
Hysteresis knob (HYS.) Used to set the rest value to 5% to 50%
of the operating value.
Operating time knob (T) Used to set the operating time to 0.1 to
30 s.
Startup lock time knob Used to set the startup lock time to 0 to
(LOCK) 30 s.

DIP Switch Functions

Function
SW1 Not used. OFF
ON
SW2 Resetting OFF
method
ON
SW3 Relay drive OFF
method
ON
SW4 Operating OFF
mode
ON
Single-phase Current Relay
Meaning
Usage
Default
Not used. OFF
Manual reset OFF
Automatic reset
Normally open OFF
(normally OFF)
Normally closed
(normally ON)
Overcurrent OFF
monitoring
Undercurrent
monitoring
K8AB-AS
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