FSDLC-220-047
16
5.4 Pre-alarm function
A monitor lamp is blinked among contact delay time until excitation of a relay after operation value
detection. Blinking of a monitor lamp will be gradually fast, and when the point of contact delay time
passes, a monitor lamp is lights up.
If contact delay time setting is made into 0 second, a pre-alarm function constitutes OFF.
・Relay action and pre-alarm in over-input detection.
(Output mode setting：Excitation H， Pre-alarm setting：ON)
・Action of the pre-alarm in contact delay time (blinking)
Operation value
setting
Relay
action
ON
OFF
Dead band
Setting value
Input
Monitor
lamp
ON
OFF
Blinking
Lights up
Blinking
Contact delay
setting time
Contact delay
setting time
Contact delay
setting time
Lights up
180s
3s
Blinking cycle
6s
Blinking cycle
4s
Blinking cycle
2s
Blinking becomes
gradually fast.
3s
120s
3s
3s
2s
2s
1
1s
2s
2s
60s
10s
0s
