Chapter 9 Troubleshooting
The braking resistor fails.
Measure the resistance
between P and PB.
If the resistor is open, replace the
external braking resistor.
External braking resistor
value does not match
(The resistance of the
the external resistor is too
large, and the energy
absorption during braking
is insufficient.)
Confirm the braking
resistor value.
Select the appropriate braking
resistor value according to
operating conditions and load.
The motor is in abrupt
acceleration/deceleration
state.
Confirm the deceleration
ramp time during running
and monitor the DC bus
voltage P11.09.
Increase the
acceleration/deceleration time in the
allowed range.
The power output phase
(UVW) loss or incorrect
phase sequence occurs
on the servo drive.
Perform motor trial
running when the motor
has no load and check
the motor wiring.
Connect the motor cables correctly
again or replace them.
Connect the motor cables correctly
again or replace them.
The motor rotor is locked
due to mechanical
factors.
Confirm the running
command and motor
speed.
Eliminate mechanical factors.
There is phase loss in
input L1, L2, L3.
Check input wiring; check
input power.
If the input power is single-phase
220V, then P10.00=1; if the input
power is three-phase 220V, check
whether the input power is missing
phase, and replace the cable wiring.
There is phase loss in
output U, V, W.
Check the output wiring
Check the motor and the
cables
Replace the cable wiring.
Ambient temperature is
too high
Check the cooling
conditions around the
drive.
Improve the servo drive cooling
conditions, reduce the ambient
temperature.
Multiple overload
operation
Check fault records,
whether overload fault
has been reported.
Waiting for 60s to reset after
overload, increase the drive, motor
capacity, increase the acceleration
and deceleration time, reduce the
load.
To Next Page
Loading...
Need help?
General
