multimeter ˃ U0-05, the servo driver is
faulty and needs to be sent back for
maintenance.
Bus Voltage
Charging Failure
low voltage of
power grid when
normal power on
low voltage of power grid when normal
power on
When the driver is on, please pay
attention to whether there is relay
actuation sound
Three phase
voltage input
phase loss
Three phase
input power
supply is lack of
phase
Module
temperature is
too high
(Module
temperature
U-06 ≥ 90℃
alarm, U-06 ≥
70℃ Warning)
Running under
heavy load for a
long time
Re-consider the capacity of the motor,
monitor the U0-02 torque during
operation, whether it is in the value of
more than 100 for a long time, if yes,
please chose the large-capacity motor
or load reduction.
Excessive
ambient
temperature
(1) Enhance ventilation measures to
reduce ambient temperature;
(2) Check whether the fan rotates when
the servo is enabled; when the module
temperature U-06 ≥45℃, the fan opens.
Alarm when
motor
temperature is
higher than 95℃
① Check whether the motor fan is
abnormal
② Contact the manufacturer for
technical support
Thermocouple
disconnection
alarm
The motor false
opening
detection and
disconnection
alarm
Check the external thermocouple
connection;
Shield thermocouple disconnection
alarm: P0-69.1 = 1
Overspeed
(actual speed ≥
P3-21/P3-22)
The maximum
forward speed is
P3-21 and the
maximum
reverse speed is
P3-22.
Check if the driver U3-00 is identical
with the motor code of the motor label
(the number after MOTOR CODE), if
not, please change to the same one, then
power on again.
Inspection of motor UVW wiring, need
to be connected in phase sequence.
(1) The maximum speed limit value
P3-21/P3-22 was reduced.
(2) To confirm whether the external
force makes the motor rotate too fast,
whether the pulse input frequency is too
high, and whether the electronic gear
ratio is too large.
Overspeed
(actual speed ≥
P3-21/P3-22)
The maximum
forward speed is
P3-21 and the
maximum
reverse speed is
(1) Check the encoder cable or change a
new one
(2) Set the servo driver to BB state and
the driver to U-10. Rotate the motor shaft
slowly by hand to see if the value of
U-10 changes normally, increasing in
one direction and decreasing in one
direction (0-9999 cycle display).