Berger Lahr WDP3-01X User Manual

4.2 Troubleshooting tables
The following table lists the possible malfunctions indicated with an error
code in the status display (item 20), their possible causes and methods
for rectification.
If several errors occur, the corresponding error codes are stored in the
controller.
The error codes can be displayed one after the other by pressing ; see
page 4-5.
Display
Cause Rectification
Motor lead short-circuit Check the motor wiring; see chapter 2.4.2.
Install a correct motor; see chapter 6.1.
Combined message for power
controller fault
Retrieve details on the cause of the fault by pressing .
It may be necessary to switch off the controller.
Power controller overvoltage
(intermediate circuit voltage >395 V)
Connect an external bleed resistor;
see chapter 6.2.5.
Power controller overtemperature Let the power controller cool down while the motor
is at a standstill.
Install a fan; see chapter 6.2.1.
Power controller undervoltage
(<200 V)
Check the voltage supply.
If on-line command processing inactive:
Activate ERR_RESET input.
In on-line command processing mode:
Use SETHARDWARE to switch power controller off
and on again; set CLRSIG_SR to ampnotready.
Contouring error (rotation monitoring) Check encoder or wiring of encoder interface;
see chapter 2.4.8.
Reduce acceleration; see chapter 3.3.1.
Check electrical current setting; see chapter 3.3.1.
Reduce any excessive mechanical load or friction
moment.
If on-line command processing inactive:
Activate ERR_RESET input.
In on-line command processing mode:
Enter the ROTMON_RESET command.
Power controller without voltage supply Check voltage supply.
Switch on the voltage supply for the power controller
first before switching on the voltage supply for the
processor unit.
Internal power controller defective If switching on is impossible, call
Technical Services department.
System without reference Perform reference movement or dimension setting;
see chapter 3.3.5 or 3.6.
Incorrect limit switch
LIMP,
or limit switch malfunction
Check wiring and function of the limit switch or the
sense of rotation of the motor; see chapter 2.5.
LIMP must be approached with CW rotation of the
motor.
Malfunctions
WDP3-01X Ident. no.: 00441109760 4-3

Berger Lahr WDP3-01X Specifications

General

Manufacturer	Berger Lahr
Series	WDP3
Model	WDP3-01X
Type	Stepper Motor Controller
Communication Interface	RS-232
Protection Features	Overcurrent, Overvoltage, Overtemperature