Description Of The Bus Signals - WEST POS-124-U-PFN Technical Documentation Manual

Description of the bus signals

Report from the controller via the fieldbus happens by two status words with the following bits:
Bit name
READY
POSWIN:S
POSWIN:D
SYNCWIN
D-ERROR
SENS-ERROR
PARA ACTIVE
PARA READY
LIVEBIT OUT
A set bit (signal 1) signalizes the relative message.
Attention: Error signals are inverted, an error exists if the bit is not set.
Further status signals like internal command position, actual position and parameter values.
Byte notation
(ACTUAL)
POSITION
(INTERNAL)
COMMAND POSITION
(PARAMETER)
VALUE
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Description of the bit
General operational readiness of the axis. ENABLE signals are available and no error
was detected. The module is active.
Static position monitoring. Message for reaching the target position within the preset
tolerance.
Dynamic position monitoring. Message for being within the preset window for the
following error, relevant in NC mode.
Synchronous run monitoring. Message for being within the preset window for the
synchronous error. Only active when synchronous controller is active.
Internal data error. Try to save the parameterset to reactivate the module.
Sensor error. SSI or 4... 20mA input signals can be monitores.
Parameterization via fieldbus is active (feedback PARA MODE).
Confirmation for transferring new parameter value to the module successfully
(validation of the PARA VALID command).
Reporting the demand for the monitoring function (see description control livebit)
Description of the byte
Monitoring of the actual position of the axis, reported in µm units.
The internal command position can be evaluated here, means the actual relevant
value for the controller which can vary depending on adaptions and profile generator.
The actual existent value of the relating parameter is displayed here when the PARA
READ function was activated.
POS-124-U 24.01.2022