Finding And Removing Faults - Pilz PMC Series Installation Manual

12 Appendix
12.2

Finding and removing faults

The table below should be regarded as a "First-aid" box. There may be a wide variety of
reasons for the fault, depending on the conditions in your installation.
In multi-axis systems there may be further hidden causes of a fault.
Our customer service can give you further assistance with problems.
Fault
HMI Message:
Communication
fault
F01 message:
Heat sink
temperature
F02 message:
Overvoltage
F04 message:
Feedback Unit
F05 message:
Undervoltage
F06 message:
Motor
temperature
F07 message:
Aux. voltage
F08 message:
Overspeed
F09 message:
EEPROM
Installation manual for PMC tendo DD5/PMCprimo Drive3
Possible causes
— wrong cable used
— cable plugged into wrong position
on servo amplifier or PC
— wrong PC interface selected
— permissible heat sink tempe-
rature exceeded
— regen power is insufficient.
Regen power limit was reached
and the regen resistor was
switched off. This causes
excessive voltage in the DC bus
link circuit.
— supply voltage too high
— feedback connector not properly
inserted
— feedback cable is broken,
crushed, or otherwise damaged
— feedback unit is damaged or
wrongly configured
— supply voltage is not present, or
too low when the servo amplifier
is enabled
— motor thermostat has been
activated
— feedback connector is loose, or a
break in the feedback cable
— the aux. voltage produced by the
servo amplifier is incorrect
— motor phases swapped
— feedback device set up incorrectly
— checksum error
Measures
— use null-modem cable
— plug cable into the correct sockets on
the servo amplifier and PC
— select correct interface
— improve ventilation
—reduce the RAMP braking
time. Use an external regen resistor
with a higher power rating and
adjust the regen power parameter
— use a supply transformer
— check connectors
— check cables
— check feedback unit and settings
— only ENABLE the servo amplifier
when the electrical supply voltage
has been switched on delay > 500
msec
— wait till motor has cooled down, then
check why it became so hot.
— screw connector up tight, or use new
feedback cable
— return the servo amplifier to the
manufacturer for repair
— correct motor phase sequence
— set up the correct offset
— save data to EEPROM again to force
a new calculation
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