Diagnosis
Operation
manual
POSIDYN®
SDS
5000
15
0
ID 44
22
8
9
.0
6
WE KEEP THINGS MOVING
13
13.3.6
36:High voltage
Triggering
Level
Response
Fault counter
The voltage in the intermediate circuit exceeds
the permitted maximum (DC link voltage display
in
E03
).
Fault
The motor continues to coast. Any existing brakes are
engaged if they were not released via
F100
independent
of the device controller.
Z36
Possible cause
Test
Measure
Acknowledgement
Supply voltage too high
Check whether the supply voltage
exceeds the permitted input voltage.
Take measures to adjust the supply
voltage.
Switch the device off/on or
programmed
acknowledgement
No braking resistor
connected
Check the wiring.
Connect a braking resistor.
Brake chopper is
deactivated
Check whether
A22
= 0 is set.
Enter the values of the braking resistor in
the
A21
,
A22
and
A23
parameters.
Braking resistor too small
or too large
•
Check whether
A21
does not reach
the permitted value.
•
Check whether the resistance is
suitable to dissipate the power losses
arising.
Connect a suitable braking resistor.
Braking ramps to steep
Observe the DC link voltage during a
braking procedure, e.g. using a Scope
recording.
•
Extend the braking ramps.
•
Connect a suitable braking resistor.
•
Check the application of the DC link
connection.
Brake chopper is faulty
Observe the DC link voltage in the Scope.
If this increases to the overvoltage limit
without hindrance, the brake chopper is
faulty.
Please contact our service department,