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9.8
Trouble Shooting
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.
Detailled hints for removal of faults can be found in the Online help chapter
"Trouble-Shooting".
Our customer service can give you further assistance with problems.
Fault
Possible causes
Measures
HMI message:
Communicati-
on fault
— wrong cable used
— cable plugged into wrong position
on servo amplifier or PC
— wrong PC interface selected
— use null-modem cable
— plug cable into the correct
sockets on the servo amplifier
and PC
— select correct interface
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
Drive runs
roughly
— Kp (speed controller) too high
— Tn (speed controller) too low
— ARLPF / ARHPF too low
— ARLP2 too low
— reduce Kp (speed controller)
— use motor default value for
Tn (speed controller)
— increase ARLPF / ARHPF
— increase ARLP2
Axis drifts at
setpoint = 0V
— offset not correctly adjusted for
analog setpoint provision
— AGND not joined to the
controller-GND of the controls
— adjust offset (analog I/O)
— join AGND and controller-GND
100
SERVOSTAR
®
300 Product Manual
Setup
10/2007
Danaher Motion