110
7
Troubleshooting
5
Troubleshooting
Diagnosis Countermeasures
1
Applicable Models
AKZ**A connected to the
external safety device
2
Methods of Malfunction Detection
Detect open or short circuit
between terminals through the
CN2 terminal on the control
board (A1P).
3
Malfunction Decision Conditions
Class Conditions
50–53
The protective device
connected to the CN2
on the control board is
actuated.
4
Supposed Causes
1Actuation of external safety
device
1Faulty control board (A1P)
1
Without mounting the external
safety device, parameter
setting mode is enabled. (Set
to any bit other than “0” with
parameter No. 3.)
Control panel display
UJ
Actuation of External Safety Device
Replace the control
board (A1P).
(See page 122/137)
Probe the causes of the
actuation of the external
safety device and then
take measures.
YES
Malfunction code
“ UJ ” is displayed.
NO
Disconnect the connector CN2 from the control
board, and then check for occurrence of
malfunction code “ UJ ” .
(If the code “ UJ ” is not displayed, the board is normal.)
00_PB00540A_M10.indb 110 2023/08/09 12:59:08
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