PACMotion™ PSD Installation and
User Manual
Section 7
GFK-3168A
September 2020
Troubleshooting the PSD
107
Section 7
Troubleshooting the PSD
Drive problems occur for a variety of reasons, depending on the conditions in your installation. The
causes of faults in multi-axis systems can be especially complex. If you cannot resolve a fault or
other issue using the troubleshooting guidance presented below, customer support can give you
further assistance.
Note: Eliminate errors and faults in compliance with work safety rules. Troubleshooting only by
qualified and trained staff.
Note
:
ore information about error messages, causes, remedy and clearing errors can be found in
the Workbench online help.
Problem
Possible Causes
Remedy
HMI message:
Communication fault
•
Wrong cable used, cable plugged
into wrong position on drive or PC
•
Wrong PC interface selected
•
Plug cable into the correct sockets
on the drive and PC
•
Select correct interface
Drive does not enable
•
HW Enable not wired
•
HW or SW Enable not set
•
Connect HW Enable (X8 pin 4)
•
Apply 24V to HW Enable and select
SW Enable in WorkBench / Fieldbus
Motor does not rotate
•
Drive 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 mechanics
•
Set motor pole no.
•
Set up feedback correctly
Motor oscillates
•
Gain is too high (speed
controller)
•
Feedback cable shielding broken
•
AGND not wired up
•
Reduce VL.KP (speed controller)
replace feedback cable
•
Join AGND to CNC-GND
Drive reports
following error
•
Lrms or Ipeak set too low
•
Current or velocity limits
apply
•
Accel/decel ramp is too long
•
Verify motor/drive sizing
•
Verify that IL.LIMITN/P,VL.LIMITN/P
are not limiting the drive
•
Reduce DRV.ACC/DRV.DEC
Motor overheating
•
Motor operating above its rating
•
Motor current settings incorrect
•
Verify motor/drive sizing
•
Verify motor continuous and
peak current values are set
correctly
Drive too soft
•
Kp (speed controller) too low
•
Ki (speed controller) too low
•
filters set too high
increase VL.KP (speed controller)
increase VL.KI (speed controller)
refer to documentation regarding
reducing filtering (VL.AR*)
Drive runs roughly
•
Kp (speed controller) too high
•
Ki (speed controller) too high
•
Filters set too low
•
Reduce VL.KP (speed controller)
reduce VL.KI (speed controller)
•
Refer to documentation regarding
increasing filtering (VL.AR*)
During installation,
the message
“Please
wait while the
installer finishes
determining your disk
space requirements”
appears and never
disappears.
•
MSI installer issue.
•
Harddisk space not sufficient
•
Cancel the installation and relaunch
the installer (you may need to try
several times, the problem is
random).
•
Make sure that you have enough disk
space on your hard disk (~500MB).