
Fault Possible causes Measures
F13 message:
Internal temp.
— permissible internal temperature
has been exceeded
— improve ventilation
F14 message:
Output stage
fault
— 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
— replace cable
— replace motor
— improve ventilation
— return the servo amplifier to
the manufacturer for repair
— remove short-circuit / ground
short
F16 message:
Mains
BTB/RTO
— enable was applied, although the
supply voltage was not present.
— at least 2 supply phases missed
— only ENABLE the servo ampli-
fier when the electrical supply
voltage has been switched on
— check the electrical supply
F17 message:
A/D converter
— error in the analog-digital conver-
sion, usually caused by EMC
interference
— reduce EMC interference
check shielding and grounding,
mount devices which produce
magnetic fields with more
distance to the amplifier.
F25 message:
Commutation
error
— wrong cable used
— offset is too large
— wake & shake missed
— check cable
— check resolver pole number
(RESPOLES), motor pole
number (MPOLES) and offset
(MPHASE)
— execute wake & shake
F27 message:
error AS
— -AS- enable AND HW enable
have been set at the same time
— check programming and wiring
of the PLC / control system
Motor does
not rotate
— 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
— 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
Motor oscilla
-
tes
— gain is too high (speed controller)
— feedback cable shielding broken
— AGND not wired up
— reduce Kp (speed controller)
— replace feedback cable
— join AGND to CNC-GND
Drive reports
following er
-
ror
—I
rms
or I
peak
set too low
— accel/decel ramp is too long
— increase I
rms
or I
peak
(keep within motor ratings!)
— shorten ramp +/-
Motor over
-
heating
—I
rms
/I
peak
is set too high — reduce I
rms
/I
peak
Drive too soft
— Kp (speed controller) too low
— Tn (speed controller) too high
— ARLPF / ARHPF too high
— ARLP2 too high
— increase Kp (speed controller)
— use motor default value for
Tn (speed controller)
— reduce ARLPF / ARHPF
— reduce ARLP2
SERVOSTAR
®
300 Product Manual 83
Kollmorgen 09/2006 Setup
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