402
System Manual – MOVIDRIVE® compact Drive Inverters
12
Fault list
Service
12.2
Fault list
A dot in the "P" column indicates that the response is programmable (P83_ Fault
response). The factory set error response appears in the "Response" column.
Fault
code
Designation
Response
P Possible cause
Measure
00
No error
-
01
Overcurrent
Immediate
shut-off
•
Short circuit output
•
Motor too large
•
Faulty output stage
•
Rectify the short circuit
•
Connect a smaller motor
•
Contact SEW Service for advice if the
output stage is defective.
03
ground fault
Immediate
shut-off
ground fault
•
in the incoming cable
•
in the inverter
•
in the motor
•
Eliminate ground fault
•
Consult SEW Service
04
Brake chopper
Immediate
switch-off
•
Too much regenerative power
•
Braking resistor circuit interrupted
•
Short circuit in the braking resistor circuit
•
Brake resistor has too high resistance
•
Brake chopper is defective
•
possibly also ground fault
•
Extend deceleration ramps
•
Check supply cable to braking resistor
•
Check technical data of braking resistor
•
Replace MOVIDRIVE
®
if the brake
chopper is defective
•
Check for ground fault.
07
DC link
overvoltage
Immediate
switch-off
•
DC link voltage too high
•
possibly also ground fault
•
Extend deceleration ramps
•
Check supply cable to the braking resistor
•
Check technical data of braking resistor
•
Check for ground fault.
08
n-monitoring
Immediate
switch-off
•
Speed controller or current controller (in
VFC operating mode without encoder)
operating at setting limit due to
mechanical overload or phase failure in
the power supply or motor.
•
Encoder not connected correctly or
incorrect direction of rotation.
•
n
max
is exceeded during torque control.
•
Reduce load
•
Increase deceleration time setting (P501
or P503).
•
Check encoder connection, possibly swap
over A/A and B/B in pairs
•
Check encoder voltage supply
•
Check current limitation
•
Extend ramps if necessary
•
Check motor cable and motor
•
Check mains phases
09
Startup
Immediate
switch-off
Inverter has not been taken into operation for
the selected operating mode.
Perform startup for the required operating
mode.
10
IPOS-ILLOP
Emergency
stop
•
Incorrect command detected during
execution of the IPOS
plus®
program.
•
Incorrect conditions during command
execution.
•
Function does not exist in inverter.
•
Check the content of the program memory
and, if necessary, correct
•
Load the correct program into the program
memory
•
Check program sequence (
→
IPOS
plus®
manual)
•
Use another function
11
Excessive
temperature
Emergency
stop
Thermal overload of inverter
Reduce load and/or ensure adequate cooling.
12
Resolver 14 bit
Emergency
stop
14-bit resolver evaluation is active and the
actual speed is > 3600 1/min
Set
P302 Maximum speed 1
to max.
3600 1/min
13
Control signal
source
Immediate
switch-off
Control signal source not defined or defined
incorrectly.
Set correct control signal source (P101).
14
Encoder
Immediate
switch-off
•
Encoder cable or shield not connected
correctly
•
Short circuit/broken encoder wire
•
Encoder defective
Check encoder cable and shield for correct
connection, short circuit and broken wire.
15
24 V internal
Immediate
disconnec-
tion
No internal DC 24 V supply voltage.
Check power supply connection. Consult SEW
service if the error occurs again.
17-24
System error
Immediate
disconnec-
tion
Malfunction of inverter electronics, possibly
due to EMC influence.
Check ground connections and shielding and
correct, if necessary. Contact SEW service if
this error occurs again.
25
EEPROM
Rapid stop
Error while accessing EEPROM
Activate factory settings, perform reset and
reset parameters. Contact SEW service if the
error occurs again.
26
External
terminal
Emergency
stop
•
Read in external error signal via
programmable input.
Eliminate specific cause of error; reprogram
terminal if necessary.
27
No limit
switches
Emergency
stop
•
Open circuit/both limit switches missing.
•
Limit switches are swapped over in
relation to direction of rotation of motor
•
Check wiring of limit switches
•
Swap limit switch connections
•
Reprogram terminals
Summary of Contents for MOVIDRIVE compact MCH41A
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Page 432: ......
