par. O-03 Control Word Timeout Time and par. O-04 Control Word Timeout Function provide a means for the frequency converter to control communication to a
controller node.
If a valid control word has not been received within the time specified in par. O-03, the action specified in par. O-04 will be performed. The default action is OFF
(no action).
The range of par. O-03 is: 0.1 to 18,000 seconds (or 5 hours).
An update of the control word is triggered by the following SNVT's:
•
nviStartStop
•
nviResetFault
•
nviControlword
•
nviDrvSpeedStpt
•
nviRefPcnt
•
nviRefHz
•
nviFeedback 1,2,3
•
nviSetPoint 1,2,3
5.8.2 Min. Send Time (Inhibit Timer)
Variable
SNVT
name:
type:
nciMinSendT
SNVT_elapsed_tm
Variable used for limiting bus traffic by setting a minimum sending timer (inhibit timer).