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Kollmorgen
Fault
F11 message:
Brake
F13 message:
Internal temp.
F14 message:
Output stage
fault
F16 message:
Mains
BTB/RTO
F17 message:
A/D converter
F25 message:
Commutation
error
F27 message:
error AS
Motor does
not rotate
Motor oscil-
lates
Drive reports
following er-
ror
Motor over-
heating
®
SERVOSTAR
300 Installation Manual
12/05
Possible causes
— short-circuit in the supply cable
for the motor-holding brake
— motor-holding brake is faulty
— fault in brake cable
— no brake connected, although the
brake parameter is set to WITH
— permissible internal temperature
has been exceeded
— motor cable has a short-circuit or
earth/ground short
— motor has short-circuit or
earth/ground short
— output module is overheated
— output stage is faulty
— short-circuit or short to ground in
the external regen resistor
— enable was applied, although the
supply voltage was not present.
— at least 2 supply phases missed
— error in the analog-digital conver-
sion, usually caused by EMC
interference
— wrong cable used
— offset is too large
— wake & shake missed
— -AS- enable AND HW enable
have been set at the same time
— servo amplifier not enabled
— software enable not set
— break in setpoint cable
— motor phases swapped
— brake not released
— drive is mechanically blocked
— motor pole no. set incorrectly
— feedback set up incorrectly
— gain is too high (speed controller)
— feedback cable shielding broken
— AGND not wired up
— I
or I
set too low
rms
peak
— accel/decel ramp is too long
— I
/I
is set too high
rms
peak
Appendix
Measures
— remove the short-circuit
— replace motor
— check shielding of brake cable
— set brake parameter to
WITHOUT
— improve ventilation
— replace cable
— replace motor
— improve ventilation
— return the servo amplifier to
the manufacturer for repair
— remove short-circuit / ground
short
— only ENABLE the servo ampli-
fier when the electrical supply
voltage has been switched on
— check the electrical supply
— reduce EMC interference
check shielding and grounding
— check cable
— check resolver pole number
(RESPOLES), motor pole
number (MPOLES) and offset
(MPHASE)
— execute wake & shake
— check programming and wiring
of the PLC / control system
— apply ENABLE signal
— set software enable
— check setpoint cable
— correct motor phase sequence
— check brake control
— check mechanism
— set motor pole no.
— set up feedback correctly
— reduce Kp (speed controller)
— replace feedback cable
— join AGND to CNC-GND
— increase I
or I
rms
peak
(keep within motor ratings!)
— shorten ramp +/-
— reduce I
/I
rms
peak
97
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