Rockwell Automation 1503VC IntelliVAC Plus Contactor Control Module - Manual (Page 33)

4-6 Description of Features
1503-UM054C-EN-P – June 2013
Delayed Restart (General)
The contactors are assigned rated duties, which define how
frequently the contactor can be switched on and off. A timer will be
used to prevent the contactor from being re-closed until the amount
of time has passed, which represents the rated duty of the contactor.
This delay is six (6) seconds for the electrically held contactors, and
twelve
(12) seconds for the mechanically latched contactors.
This feature may also be used for motor protection, by preventing a
motor from being started too frequently. In this case, it shall be
possible to increase the restart delay as follow:
Minimum (6/12 sec.) to 3600 sec. (60 minutes)
1 sec. resolution
The Delayed Restart data will be available, for each of the five (5) IB
units, on DeviceNet in the following manner:

‘IB1 Delay Restart Time = ‘ ‘6 Sec’ to ‘3600 Sec’
(Note: Minimum time limited to 12 Sec for mechanically
latched contactor)

‘IB2 Delay Restart Time = ‘ ‘6 Sec’ to ‘3600 Sec’
(Note: Minimum time limited to 12 Sec for mechanically
latched contactor)

‘IB3 Delay Restart Time = ‘ ‘6 Sec’ to ‘3600 Sec’
(Note: Minimum time limited to 12 Sec for mechanically
latched contactor)

‘IB4 Delay Restart Time = ‘ ‘6 Sec’ to ‘3600 Sec’
(Note: Minimum time limited to 12 Sec for mechanically
latched contactor)

‘IB5 Delay Restart Time = ‘ ‘6 Sec’ to ‘3600 Sec’
(Note: Minimum time limited to 12 Sec for mechanically
latched contactor)
This time value is used by the IE unit to delay the time between
issuing a close command to the IB unit, issuing an open command to
the IB unit and then issuing another close command.
While the IntelliVAC Plus is counting down this delayed restart
time, this parameter will be made available, for each of the five (5)
IB units, on DeviceNet in the following manner:

‘IB1 Delay Restart Wait Time = ‘ ‘x Sec’
(Note: This value, as it is being viewed, will be constantly
updated as the wait time decreases.)

‘IB2 Delay Restart Wait Time = ‘ ‘x Sec’
(Note: This value, as it is being viewed, will be constantly
updated as the wait time decreases.)