Fault
Possible cause
Possible solution
(Unusual) running
noises
•
Defective bearing.
•
Defects on
connected
mechanics.
•
Incorrect control
loop parameters.
•
Check the shaft.
•
Check for loose
mechanical
components on
the attached
mechanics.
•
Check the
parameter
settings.
System fuse
blows, circuit
breaker trips, or
drive protection
trips immediately.
•
Short circuit.
•
Incorrect control
loop parameters.
•
Check the wiring.
•
Contact Danfoss.
Drive speed drops
sharply under
load.
•
Drive is running at
current limit.
•
Drive is running
with incorrect
parameters.
•
Check the
application.
•
Check the
parameter
settings.
Brake does not
release.
Brake control
defective.
Contact Danfoss.
Holding brake
does not hold the
servo drive.
•
Mechanical brake
defective.
•
Shaft load exceeds
the holding torque
of the brake.
Contact Danfoss.
Brake
engagement
delayed.
Software error.
Contact Danfoss.
Noises when
power-off brake
engaged.
Mechanical brake
damaged.
Contact Danfoss.
LEDs do not light
up.
No power supply.
Check the power
supply.
Error 0xFF91
occurs.
Increments between
succeeding values too
big.
Check for velocity or
guide value plausi-
bility distance.
Table 9.1 Troubleshooting Servo Drive
9.2.2 Error Codes
Code
Name
Severity
(Warning/
Error/Trip
lock)
Description LCP name
0x0000 No error
Error
No error.
–
0x1000 Generic
application
error
Error
Generic
application
error.
generic err
0x2310 Overcurrent
on output
Error
Overcurrent
on output.
overcurr out
Code
Name
Severity
(Warning/
Error/Trip
lock)
Description LCP name
0x239B Overload on
output (I2T)
Warning,
error
I
2
t thermal
state.
overload
0x3210 DC link
overvoltage
Error
Overvoltage
on DC-link
voltage
UDC
overvolt
0x3220 DC link
undervoltag
e
Error
Undervoltag
e on DC-link
voltage.
UDC
undervolt
0x4290 Overtem-
perature:
Power
module
Error
Overtem-
perature on
power
module.
overtemp
PM
0x4291 Overtem-
perature:
Control card
Error
Overtem-
perature on
control PCB.
overtemp CC
0x4295 Overtem-
perature:
Power card
Error
Overtem-
perature on
power PCB.
overtemp PC
0x4310 Overtem-
perature:
Motor
Error
Overtem-
perature on
motor.
overtemp
motor
0x5112 UAUX
undervoltag
e
Error, trip
lock
Undervoltag
e on
auxiliary
voltage.
undervolt
UAUX
0x5530 EE
Checksum
Error
(parameter
missing)
Trip lock
Missing
parameter in
internal
drive config-
uration.
config err
0x6320 Parameter
error
Trip lock
An internal
parameter
has an
invalid value.
param err
0x7320 Internal
position
sensor error
Trip lock
Absolute
position
sensor error.
int sensor
err
0x7380 External
position
sensor error
Error
External
encoder
data could
not be read.
ext sensor
err
0x8693 Homing
error on
entering
homing
mode
Warning
Could not
enter
homing
mode (for
example
velocity not
0).
Homing
mode fail
Diagnostics
Operating Instructions
MG75K102
Danfoss A/S © 12/2015 All rights reserved.
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