Справочник Пользователя для Mitsubishi Electronics 60/60S

6. Daily Maintenance and Periodic Inspection and Maintenance 

6.3  Replacement Methods 

 

 

 

III-48

 

The expansion PCB is used to expand the system for adding a serial port, etc. (Refer to the "I Connection 
Manual, Section 2.2" in the Connection and Maintenance Manual BNP-B2183 for information related to 
expansion PCB types and functions.) 
Up to two expansion PCBs can be added. The PCBs are mounted in the RT #1/#2 slots on the right side 
of the control section power supply PCB. 

Always replace the expansion PCB with the machine power turned OFF. 

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 unit and expansion PCB.  
4)  Open the front cover of the control section as shown in the drawing below.  
5)  While holding the front upper and lower sections of the expansion PCB with both hands, pull out the 

PCB from the control section. 

6)  Replace with the new expansion PCB. If the PCB has setting locations, set to the same settings as 

the old PCB.  

7)  Install the expansion PCB into the slot in which the old PCB was mounted.  

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

8)  Close the front cover of the control section. 
9)  Connect all cables that were connected to the control unit and expansion PCB. 

(Connect all cables to the designated connectors.)  

10)  Close the door of the electric cabinet.  

 

Expansion PCB mounting slot 

Open the f ront cover
of  the control section.

Fron t cover

Control section  case

Expansion PCB

PCB f ixing gu ides

Control section  case

Expansion PCB

Control secti on