Delta ASDA-A3 Series User Manual page 1207

Troubleshooting
AL235 Position counter overflow warning
Trigger condition
and cause
14
Checking method
and corrective action
How to clear the
alarm?
AL237 Rotary axis position is undefined
Trigger condition
and cause
Checking method
and corrective action
How to clear the
alarm?
14-60
Condition: a positioning command is executed after the overflow of the position
command counter.
Cause: overflow of the position command counter.
Incremental system:
When the motor keeps operating in one direction, this leads to overflow of the
position feedback register (FB_PUU), and the position system cannot display the
correct position. Issuing an absolute position command after overflow results in
this error. Use the scope to check if the feedback position has overflowed and then
execute the homing procedure.
Absolute system:
This error occurs when the absolute positioning command is issued in the following
conditions:
Position feedback register (FB_PUU) overflows.
1.
Absolute origin position is not established after the setting of P1.001.Z is
2.
changed.
Absolute origin position is not established after the E-Gear ratio (P1.044 and
3.
P1.045) is changed.
The absolute origin position is established but the homing procedure is
4.
incomplete.
When AL060 and AL062 occur, use the scope to check if the feedback
5.
position has overflowed. Check whether the preceding conditions have
occurred, and then establish the absolute origin position.
Incremental system: perform homing procedure after using DI.ARST to clear the
alarm.
Absolute system: establish the absolute origin position.
The starting point of the rotary axis position is not defined before you operate the
rotary axis position control and execute the rotary axis positioning command. This
alarm occurs because the servo drive cannot identify the rotary axis position
system.
Check if the rotary axis position is undefined: perform the homing procedure before
using the rotary axis position control to avoid triggering this alarm.
DI.ARST
ASDA-A3