152
Voltage instability or
chip abnormality
Please contact the agent or the
manufacturer
Bus voltage
U0-05 is higher
than the actual
preset threshold,
220V Power
Supply Machine
(U0-05≥402V)
380V Power
Supply Machine
(U0-05≥780V)
High voltage of power
grid
Check the fluctuation of power
grid, 220V driver normal voltage
range 200V ~ 240V, 380V driver
normal voltage range 360V ~
420V. If the voltage fluctuation
is large, it is recommended to use
the correct voltage source and
regulator.
Excessive load moment
of inertia (insufficient
regeneration capacity)
(1) connect external regenerative
resistor, (220V: bus voltage
U0-05 = 392 discharge starts,
U-05 = 377 discharge ends;
380V: U-05 = 750 discharge
starts, U-05 = 720 discharge
ends;)
(2) Increasing Acceleration and
Deceleration Time
(3) Reducing load inertia
(4) Reduce start-stop frequency
(5) Replacement of larger power
drivers and motors
Brake resistance
damage or excessive
resistance value
Check the regenerative resistor
and replace the external resistor
with the appropriate resistance
value. See chapter 1.4.1 for the
selection of the external resistor.
Acceleration and
deceleration time is too
short
Extending Acceleration and
Deceleration Time
Hardware Fault of
Driver Internal
Sampling Circuit
The AC gear of the multimeter
measures the input value of the
servo LN (R/S/T), which is 220V
± 10% of the normal value. If the
power supply voltage is more
than 220V+10% (380V+10%),
check the power supply voltage;
if the power supply voltage is
normal, then the servo BB state,
monitor U0-05, the voltage
measured by the multimeter *
1.414 < U0-05 (within 10V
error), then the servo driver is
faulty and needs to be sent back
for repair.
Bus voltage
U0-05 is lower
than the actual
preset threshold.
220V power
supply machine
(U0-05 ≤ 150V)
380V power
supply machine
(U0-05 ≤ 300V)
low voltage of power
grid when normal
power on
(1) Check the fluctuation of
power grid. The normal voltage
range of 220V driver is
200V~240V. If the voltage
fluctuation is large, the voltage
regulator is recommended.
(2) Replacement of larger
capacity transformers
Instantaneous power
failure
Re-energize after voltage
stabilization
Hardware Fault of
Driver Internal
Sampling Circuit
The AC gear of the multimeter
measures the input value of the
servo LN (R/S/T), which is 220V
± 10% of the normal value. If <