IDEC HR6S-DN, Instruction Manual, Page: 85 / 103

Diagnostics
HR9Z-B2200 8/2020
85
LED ERROR - Alerts
This LED flashes in conjunction with additional S## LEDs to indicate alerts. In the case of an alert,
the device transitions to the defined safe state. Remove the cause of the alert to exit the defined
safe state and resume operation. Contact your IDEC CORPORATION service representative if the
condition persists.
State In conjunction with additional
LEDs
Meaning Remedy
Additional LEDs State of
additional LEDs
Flashing S## and S## Flashing
alternatively
Synchronization time
exceeded.

Verify correct operation of the
sensors/devices providing the input
signal.

If synchronization is not required for
your application, use an equivalent
application function without
synchronization.
Flashing S## and S## Flashing
synchronously
Signal interlock condition
of two safety-related
inputs.
The two safety-related
inputs affected by the
signal interlock condition
must be deactivated for
at least 1 second before
the safety-related outputs
can be activated again.

Deactivate the two safety-related
inputs affected by the signal
interlock condition for at least
1 second.

Verify correct operation of the
contacts of the sensor/sdevices
providing the input signal.