Instruction manual

5. PREPARATION BEFORE OPERATION

IMSRM52-E5

5.4 When the Power is Turned on for the First Time

 Checking before power on

Check the following items, and then turn on the power of the control unit.

• Operation environments conform to 3.1 Mounting Cautions (P. 15).

• The wiring and connections conform to 4. WIRING (P. 23).

• The power supply voltage conform to 2. SPECIFICATIONS (P. 10).

 Checking after power on

Check that the RUN lamps on the H-PCP-G and H-LNK-A modules are flashing.

For details of the PLC, refer to the User's manual for Control & Communication Link

system master/local units of Mitsubishi Electric Co., Ltd.

5.5 Control Unit Operation When the PLC is Abnormal

 When the Control & Communication Link is not normally connected after the

power to the control unit is turned on

As control start (RUN) cannot be set on the PLC side, control continues to stop (STOP).

The control unit starts with control RUN/STOP transfer set to the control STOP state

after power on. Set to control RUN on the PLC side after power on. However, if the

initialize setting (Extended communication) Control RUN/STOP holding (0: Not

holding prior to factory shipment) is changed to 1: Holding, control starts while the

state before STOP is being held.

For details of the Control RUN/STOP holding settings, refer to the separate

Supplementary Information for initialize settings [Extended Communication]

(IMSRM07-E).

 When the PLC becomes abnormal while the control unit operates normally

The control unit continues its control at the temperature set value before the PLC becomes abnormal.