INVT DA180-S2R8SG0 Operation Manual page 273

DA180 series basic AC servo drive
Code Name
Er20-0 Speed deviation fault
Er21-0 Position overtravel–CCW
Er21-1 Position overtravel–CW
Position deviation fault
Er22-0
Possible cause
In non-torque mode, the
deviation between the motor
speed and speed command
exceeds the setting of P4.39.
1. The motor phases U, V,
and W are in
sequence or motor cables
are not connected.
2. The motor load is too
heavy, which causes motor
stalling.
3. The drive force
insufficient, which
motor installing.
4. The speed loop control
parameters are
improperly.
5. The setting of P4.39 is too
low.
In position mode, the CCW
limit switch is touched or the
accumulated feedback pulse
exceeds the setting of P0.35.
In position mode, the CW
limit switch is touched or the
accumulated feedback pulse
exceeds the setting of P0.36.
1. Server response time is
too slow. Therefore
residual pulses exceed the
setting of P4.33.
2. The motor load is too
heavy, which causes motor
-267-
Workaround
the power cable is correct.
3. Check the setting of P4.35
[Enabling
detection].
1. Ensure the motor cable phases
are in correct sequence and
motor cables
properly.
reverse 2. Check whether the conveyer
belt or chain is too tight or the
workbench reaches the boundary
or encounters obstacles. If yes,
resolve the problem.
3. Ensure the speed loop control
is parameters are set properly, the
causes drive is not damaged, and the
servo system model is correct.
4. Increase the setting of P4.39.
set 5. Set P4.39 to 0, which disables
the detecting
deviation fault.
1. Ensure the CCW limit switch
signal is correct.
2. Ensure the setting of P0.35 is
proper.
1. Ensure the CW limit switch
signal is correct.
2. Ensure the setting of P0.36 is
proper.
1. Check whether the conveyer
the belt or chain is too tight or the
workbench reaches the boundary
or encounters obstacles. If yes,
resolve the problem.
2. Increase
Fault handling
motor runaway
are connected
for a speed
the settings of