Yaskawa E7L Drive Bypass - Manual (Page 206)

Maintenance 7 - 4
Replacing the H/O/A Control Panel
To remove and replace the H/O/A control panel, remove 6 nuts from the Bypass “Operator Panel A3” located on the inside of
the enclosure door.
Fig 7.1 Removing PCB A3
Control panel A3 will then lift off. Remove the ribbon cable and RJ45 connection from the back of control panel A3.
Replace control panel A3 with replacement part number:
UTC000046 For standard LED Drive keypad
UTC000047 For optional LCD Drive keypad
Note: Check both fuses on PCB A2 before reaching a decision to replace the PCB. See Fig. 6.1.
Replacing The Controller PCB A2:
The “Bypass Controller PCB A2” assembly may be replaced (see appendix F for part numbers). The “Bypass Controller PCB
A2” is located on the left hand side of the wall mount enclosure, adjacent to the door hinge. See Fig. 1.8 and Fig. 6.1.
To remove PCB A2, disconnect the ribbon cable connectors at CN102 and CN110. Mark and disconnect the connectors from
CN101, CN108 and CN109 as well as marking and disconnecting all field wiring from terminal blocks TB1, TB2 and TB5.
Remove the 5 nuts securing the circuit board to the side wall of the enclosure, lift out and replace the “Bypass Controller PCB
A2” assembly with a new one (part number UTC000044).
Mounting Nuts,
6 places
H/O/A Control
Panel PCB A3