Справочник Пользователя для Mitsubishi Electronics 60/60S

6. Daily Maintenance and Periodic Inspection and Maintenance 

6.3  Replacement Methods 

 

 

 

III-47

 

The control section power supply PCB is supplied with 24VDC from an external source. This PCB 
generates the DC voltage required for each control PCB in the control section. 

Always replace the control section power supply PCB with the machine power turned OFF. 
A battery for backing up the memory is mounted on the control section power supply PCB, so as with the 
battery, replace the control section power supply PCB within 30 minutes. 

1)  Confirm that the machine power is OFF. (If the power is not OFF, turn it OFF.) 
2)  Open the electric cabinet door, and confirm that the control unit LED, 7-segment display, etc., are all 

OFF. 

3)  Disconnect all cables connected to the control section power supply PCB.  
4) If an extension unit is mounted, and a cable is connected to the front of the control section, 

disconnect the cable.  

5)  Open the front cover of the control section by pulling on the right side of the door (the side without 

fixing screws).  

6)  While holding the front upper and lower sections of the control section power supply PCB with both 

hands, pull out the PCB from the control section.  

7)  Remove the battery from the control section power supply PCB that was removed from the control 

section.  

8)  Replace the battery with the new one. Insert the connector connected to the new battery into the 

BAT connector on the HR081/082 control section PCB.  

9)  Install the control section power supply PCB into the control section. (Align the control section power 

supply PCB with the PCB fixing guides on the inner side of the control section case, and then install.)  

10)  Connect all cables that were connected to the control section power supply PCB. (Connect all 

cables to the designated connectors.)  

11)  Close the front cover of the control section. At this time, confirm that the cover is closed by listening 

for the "click" sound when the latch catches.  

12)  Close the door of the electric cabinet.  

Control section  case

Control secti on
power supply PCB

PCB f ixing gu ides

Control section  case

Control secti on

Open the front cover
of  the control section.

Control section power supply PCB

BAT connector

Battery holder

Battery

Front cover

Connection
connector