Owner's manual

9400 regenerative power supply module | Parameter setting
"CAN on board" system bus
Monitoring
136 L EDS94ARNExxxx EN 2.3 - 06/2014
6.9.1.2 Parameter setting
Short overview of parameters for the "node guarding" monitoring function:
Guard time
The "guard time" is the time interval at which the NMT master sends the RTR telegram.
 For each NMT slave to be monitored an individual time interval can be set.
 The RTR telegram requests the NMT slave to send its current state.
Node life time
The "node life time" is the product of the "guard time" and the "life time factor":
Node life time = guard time x life time factor
 "Life time factor" and "guard time" must be known to the NMT master. For this reason,
the values are read from the NMT slave or defined values are sent to the NMT slave at
every restart.
 For each NMT slave to be monitored an individual "node life time" can be set.
OK state
The connection state is OK if
 the NMT slave has received an RTR telegram from the NMT master and
 the NMT master has received a correct response from the requested NMT slave within
the ”node life time”.
In the OK state, the monitoring times for the NMT master and the NMT slave are reset and
the node guarding protocol is continued.
Parameter Information Lenze setting Assignment
Value Unit Master Slave
C00382 CAN Guard Time 0 ms 
C00383
CAN Life Time Factor 0 
C00386/1...32
CAN Node Guarding 0x00000000 
C00387 CAN Node Guarding Activity - 
C00388/1...32 CAN Node Guarding Status - 
C00612/1...32 Resp. to CAN node guarding error No response 
C00614
Resp. to CAN life guarding error No response 
C00625
CAN behaviour in case of fault Pre-operational state 
Highlighted in grey = display parameter