12 Fault Code and Countermeasures
244 SD780 Series Servo Technical Manual
12 Fault Code and Countermeasures
12.1 Fault Code
Fault
code
Fault type
Solutions
Er.020
Abnormal
parameter and
check
1. Enter the parameters again after initializing parameter settings.
2. Write the power level of the driver to 0 first, and then write the correct power
level. Note: Remember to perform the current detection correction, analog input
correction and bus voltage correction after writing the power level.
3. servo driver failure, replace the servo drive.
Er.021
Parameter
formatting exception
(inconsistent
version number)
1. Perform a soft reset. If the fault is still reported, write the driver's power level
to 0 and then write the correct power level. Note: Remember to perform the
current detection correction, analog input correction and bus voltage correction
after writing the power level.
2. servo driver failure and replace the servo drive.
Er.022
Abnormal system
and check
1. Perform a soft reset. If the fault is still reported, write the driver's power level
to 0 and then write the correct power level. Note: Remember to perform the
current detection correction, analog input correction and bus voltage correction
after writing the power level.
2. servo driver failure and replace the servo drive.
Er.030
Abnormal detection
in main circuit
1. Servo driver fails, replace the servo driver.
Er.040
Abnormal
parameter setting
1. Check whether the changed parameters are out of range.
2. Check if the setting of electronic gear ratio is within the setting range
(electronic gear ratio: 0.001
～
16777216/1000).
3. Check whether the servo drive and servo motor capacity match.
4. I/O terminal definition repeat.
Er.041
Abnormal frequency
division pulse
output setting
According to the number of encoder bits, the number of encoder frequency
division pulses is set to an appropriate value, see the specification.
Er.042
Abnormal
parameter
combination
1. Make the setting value of electronic gear ratio within the setting range.
2. make the program JOG settings related to logic.
Er.044
Abnormal setting of
loop parameters
1. Set the half closed loop / full closed loop parameters correctly.
Er.050
Unmatched drive
and motor capacity
1. check if the driver power and motor power are correct.
2. replace the drive or motor so that it is within a reasonable range.
Er.051
Alarm caused by
product technical
support failure
1. Connect the function modules can not be supported by the product, please
select the matching combination.
Er.080
Abnormal distance
setting
corresponding to
unit pulse of
encoder
1. Correctly set the distance corresponding to the unit pulse of the encoder.
Er.08A
Abnormal resolution
setting of position
sensor
1. Set the resolution of position sensor correctly.
Er.0B0
Invalid servo ON
command alarm
Re-power on or perform a soft reset.
