Deif PPM 300, Designers Handbook

Page: 275 / 521

Table 7.28 Default parameters
Parameter Range Default
Delay 1 s to 1 h 2 min
Action Warning, Latch enabled
7.9.4 Heavy consumer feedback timeout
This alarm communicates that the requested heavy
consumer did not give feedback within the configured
time after the request was acknowledged.
The timer starts when the controller activates the Heavy
consumers > [Heavy consumer #] > Acknowledge
output. The timer runs until the controller receives
Heavy consumers > [Heavy consumer #] > Feedback .
For variable feedback, the timer is cancelled when the
feedback is above 2 %.
For a continuous request signal, the feedback timer
stops and resets when the request signal becomes low
before the
Delay (t1) is exceeded.
If the Delay (t1) is exceeded, the controller activates the
alarm and the heavy consumer reservation is cancelled.
When the alarm is activated, it is not possible to request
power reservation for this heavy consumer. The
Feedback must be reset, and the alarm acknowledged,
before the heavy consumer sequence can be restarted.
t1
Request
Extra power
available
Acknowledge
(1)
(2)
(3)
Feedback (4)
Configure the parameters under Configure > Parameters > Heavy consumers > [Heavy consumer #] > Feedback timeout ,
where # is 1 to 4 and [Heavy consumer #] can be replaced by the heavy consumer Controller label . This alarm is always enabled.
Table 7.29 Default parameters
Parameter Range Default
Delay 1 s to 1 h 30 s
Action Warning, Latch enabled
7.9.5 Missing all controllers
This alarm communicates a network failure.
The alarm is based on the network between the controllers included in the single-line diagram. The alarm is activated when the
controller cannot communicate over the network with any other controllers. If this alarm is activated, the
Missing controller ID #
alarms are not activated. This alarm also forces the controller under switchboard control.
Configure the parameters under Configure > Parameters > System alarms > Communication > Missing all controllers . This
alarm is always enabled.
DESIGNER'S HANDBOOK 4189340911K UK Page 275 of 521