CKD AX Series Instruction Manual page 172

Symptom
20. When the program is
stored, alarm 7 lights up
and the program is not
stored.
21. Start signal input will not
cause motion to be made.
22. Pneumatic brake does not
release.
23. The electromagnetic brake
does not release.
24. Alarm 7 lights when
connected to the dialog
terminal.
25. The start signal supplied
after recovery from an
emergency stop does not
cause a start.
26. Repetitive five-segment
(72-degree) indexing
operations cause deviation.
27. Parameters are not stored.
When the output axis of the actuator is manually rotated without power-on with the driver
and actuator connected, torque pulsation may be felt, but this is not abnormal condition.
When the above countermeasures will not help troubleshooting, contact CKD.
Discontinue
Table 11.3 Troubleshooting (4/4)
Probable Cause
The program area is full.
Program data is broken.
Write protection state
No answer input is supplied in
response to an M code or
positioning completion output.
Program is not input.
Brake is applied.
24VDC I/O power is not
supplied.
Input signal is shorter than
20m sec.
No automatic operation.
24VDC I/O power is not
supplied.
Valve is faulty.
24VDC I/O power is not
supplied.
24VDC is not supplied to the
electromagnetic brake.
Parameter 26 is changed.
Position in the program where
start input wait (M0) is written
Accumulated error due to
incremental dimension
Pulse string input (M6)
operation mode
No answer input is supplied in
response to an M code or
positioning completion output.
— 11-7 —
11
MAINTENANCE AND
TROUBLESHOOTING
Countermeasures
Delete unnecessary programs.
Clear the program memory
area and enter again.
(L17_9999)
Check the start input wait
output.
The program can be stored
during start input wait output
state.
Check I/O signals.
Check parameters 11, 12 and
13.
Input motion programs.
Release the brake.
Check power source (Refer to
3. 2). (5).).
Set longer input signal time
(Refer to 5. 2).).
Set to auto mode.
Confirm the parameter 29.
Check power source (Refer to
3. 2). (5).).
Replace the valve (Refer to
Fig. 11-1.).
Check the power supply and
wiring. (Refer to Section 3.2
(4).)
Check the power supply,
wiring and the relay. (Refer to
Section 3.2 (4).)
Check the parameter 26.
Change the position of "M0."
Use the equal segment
program (G101).
Change to the automatic
operation (M1) or single block
(M2) operation mode and
store.
Check I/O signals.
Check parameters 11, 12 and
13.
[SMB-14E]