128
Motor action when
motor brake is not
opened
Measure the voltage of the brake
terminal and decide to open the
brake.
It is suggested to use servo BK
signal to control the brake lock. If it
is not servo control, attention must
be paid to the timing of brake
opening and motor action.
Wrong wiring of
encoder cable,
power cable or
broken wire or
loose pin of
connector plug
Check the UVW connection of
power cable to see if there is any
phase sequence error.
The multimeter is used to measure
whether all the encoder cable are
on. Check whether the plug is loose,
for machine vibration, whether the
plug has shrinkage pin, virtual
welding, damage.
In multiple
mechanical wirings,
incorrect
connection of motor
cable to other shafts
leads to incorrect
wiring.
Detection of servo wiring, the
motor cable, encoder cable are
correctly connected to the
corresponding shaft.
Poor gain
adjustment results
in motor vibration,
back and forth
swing and abnormal
noise.
Readjustment of gain parameters
Driver or motor
hardware failure;
There are servo cross test or motor
empty shaft on site, F1-01 trial
operation, F1-00 jog run can not
rotate uniformly;
Replace the new driver or motor
and send the malfunction machine
back to the manufacturer for repair.
Judging that the
current motor
output torque is
greater than
P3-28/P3-29
(internal
forward/reverse
torque limit), and
the time reaches
P0-74 (unit ms),
and the speed is
lower than P0-75
(unit 1 rpm).
(1) Machinery is
impacted, suddenly
becomes heavier
and distorted;
(2) When the brake
of the motor is not
opened, the motor
moves;
(3) The parameter
setting is
unreasonable.
(1) Eliminate the factors of
mechanical distortion. Reduce load
(2) Measure the voltage of the brake
terminal and determine the opening
of the brake;
It is suggested to use servo BK
brake signal to control the brake
lock. If it is not servo control,
attention must be paid to the timing
of brake opening and motor action.
(3) Monitor the actual output torque
range of U0-02 and check whether
the setting of P3-28/29 torque limit
is reasonable.
Regenerative
resistance overload
High Voltage
Fluctuation in
Power Grid
Selection of
regenerative
Replacement of higher power
regenerative resistors (refer to