SRV-63 series AC servo drives Faults and solutions
-241-
Code
Name
Causes
Countermeasures
voltage test circuit is damaged.
not match with grid input voltage,
change the drive.
Er17-0
Drive overload fault
Short-time load of the drive is too
heavy
1.The load is too heavy which
causes drive overload;
2.Check whether phase dislocation
or phase loss occurred to UVW
wiring of the motor, and check
whether encoder is correct;
3.Check whether the motor is
compatible with the drive.
Er18-0
Motor overload fault
1. Long-term overload running;
2. The load is too heavy during
short time.
1. Replace with the drive and motor
with larger power.
Er18-1
Motor overtemp fault
Motor temp exceeds the
protection value
1.Replace with the motor of larger
power;
2.Check whether UVW phase
sequence is correct.
Er19-0
Speed fault
– Overspeed
fault
The absolute value of the motor
speed exceeds the setting value
of P4.32
1. U, V, W phases of the motor
are connected reversely;
2. Incorrect setting of the
electronic gear ratio or motor
speed loop control parameters;
3.The setting value of P4.32 is
less than the setting value of
P4.31 (max. speed limit);
4. Interference to the encoder
feedback signal.
1. Check the electronic gear ratio;
2. Check the setting of speed loop
control parameters;
3. Check that the phase sequence of
the motor cable are connected
correctly;
4. Check whether motor encoder
connection is proper;
5. Replace with the motor with
higher rotation speed.
Er19-1
Speed fault-FWD
overspeed fault
Speed feedback exceeds the
value of P4.40 by more than
20ms.
1.Check whether encoder is normal;
2.Check whether P4.40 parameter is
set properly.
Er19-2
Speed fault-REV
overspeed fault
Speed feedback exceeds the
value of P4.41 by more than
20ms.
1.Check whether encoder is normal;
2.Check whether P4.41 is set
properly.
Er19-3
Speed fault-Overspeed
parameter setup is
wrong
The value of P4.40 is less than 0
or P4.41 is larger than 0.
1.Check whether encoder is
connected reliably;
2.Check whether P4.40 and P4.41
are set improperly.
