Lost Communication Trip - Parker 2003-CB-00 Technical Manual

10 Lost Communication Trip

Supervised Parameter:
The 0777 Comms Supervised parameter indicates that the CANopen network participation is supervised
by another CANopen device.
The Supervised parameter value is set to TRUE when either:
The heartbeat consumer and Heartbeat producer is enabled and error free.
Node guarding is enabled and error free.
Comms Break Trip
The drive will trip when there is a loss of communications between the master and the drive.
A COMMS BREAK trip will occur if the 0777 Comms Supervised parameter transitions from TRUE to
FALSE and the drive is in the operational state.
The trip may be disabled by clearing the respective bit in the parameter 0870 Enable Trips Lo. The
parameter Enable Trip Lo is a 32-bit word, the bit number 27 is used to disable or to enable the trip.
Comms state
The parameter 0774 Comms State indicates 'PROCESS_ACTIVE' when the CANopen communication is
active. The table below describes how the comms state relates to the CANopen network:
Comms State Comments
NW_INIT Network initialization
WAIT_PROCESS PRE-Operational
IDLE STOPPED, the network device is in idle
PROCESS_ACTIVE Operational: the network process data channel is active and error free
ERROR controller has entered the BUS-off state
EXCEPTION -
-
An illegal configuration or a NMT (Network management) service RESET
NODE request have been received.
Application error (invalid network configuration parameter, timeout etc.)
DOC-0017-06-EN-B 04.04.2023
DOC-0017-06-EN: AC20 Series CANopen Option
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