What is Feature 31 and how does it work with a Group G controller?

Feature 31 is a Selective Load Disconnect Feature. This is a standard feature that includes sub-features 31F, 31G, 31M, and 31N. One (1) set of form C contacts are provided on the Group G controller as “OP1”. When the contact “OP1” is set to operate as “Feature 31”, the time delay settings of the sub-features are available. If system requires more than one (1) set of contacts, an optional accessory 18RX can be added to provide an additional two (2) sets of form C contacts labeled "OP2" and "OP3".

“OP1” can be set to operate to provide the following functions using the time delay setting associated with each sub-feature.

31F – Normal to Emergency Pre-Transfer signal
31G – Emergency to Normal Pre-Transfer signal
31M – Normal to Emergency Post-Transfer signal
31N – Emergency to Normal Post-Transfer signal

To program "OP1" to work as Feature 31,  the feature 31 needs to be set to "YES" under Feature settings of the Group G controller
To set the time delay on Feature 31, on the controller navigate to Timer Settings and set desired time delay with an adjustment range of 0 – 5 min 59 secs.

Refer to User’s Guide with manual number 381333-400 for additional setting information.

If unsure, contact Technical Support at 1-800-800-ASCO or send an email to technicalsupport@ascopower.com

Released for: Schneider Electric Australia