Technical data

W.E.ST. Elektronik GmbH
Page 23 of 25 PAM-190-P-*-1021 01.12.2014
6 Appendix
6.1 Failure monitoring
Following possible error sources are monitored continuously:
Source
Fault
Characteristic
Demand value input at 4...20mA
Broken wire
The power stage is deactivated.
Demand value input with the LIM
signal monitoring (e.g. for joy-
sticks
Out of range
The power stage is deactivated.
Solenoid
Broken wire, short circuit
The power stage is deactivated.
EEPROM (at switching on)
Data error
The power stage is deactivated.
6.2 Troubleshooting
It is assumed that the device is in an operable state and there is communication between the equipment and
the WPC-300. Furthermore, the valve control parameterization has been set with the assistance of the valve
data sheets.
The RC in monitor mode can be used to analyze faults.
CAUTION: All safety aspects must be thoroughly checked when working with the RC (Remote
Control) mode. In this mode the equipment is controlled directly and the machine control cannot in-
fluence the module.
FAULT
CAUSE / SOLUTION
READY LED is off.
Presumably no power supply is present.
If there is no power supply there is also no communication via our operating pro-
gram. If a connection has been made to the WPC-300, then a power supply is also
available.
READY LED is flashing.
The flashing READY LED signals that a fault is detected by the equipment. The fault
could be:
 Solenoid error or no signal at the input, if 4… 20 mA signals
 LIM monitored input signals are parameterized.
 Internal data error: press the command/SAVE button to delete the data error. The
system reloads the DEFAULT data.
With the WPC-300 operating program and ULA-310 the fault can be localized directly
via the monitor.