If The Alarm Led Is Unlit On The Expansion Unit - Panasonic GM1 Series Reference Manual

10.3.7 If the ALARM LED Is Unlit on the Expansion Unit

■
Condition
It can be assumed that a system error has occurred in the expansion unit connected to the
control unit or in the control unit.
■
Solution
Clarify the situation in the following procedure.
1.
Check if an end unit is connected to the last expansion unit.
2.
Check the wiring of the cables connected to the expansion units and wiring of the power
supply.
3.
Clear the self-diagnosis error of the control unit.
4.
Restart the power supply of the control unit.
WUME-GM1H-01
10.3 What to Do If an Error Occurs
10-7