HAT600R Series ATS Controller User Manual Page 45 of 59
Fig.11 S2 In-phase Close Procedure Oscillogram
13.4.3
MANUAL SYNC CLOSE
When it is manual mode, and S1&S2 power are normal, if S1 is closed, press S2
key and S2
closes synchronously. If S2 is closed, press S1
key, and S1 closes synchronously. In the process
of waiting for sync, press close key again and sync close is stopped. If sync waiting is overtime, sync
failure warning alarm is initiated; but it will continue waiting to sync, until sync is completed, or cancel
sync close by pressing close key.
13.4.4
AUTO SYNC CLOSE
When it is auto mode and backup power is normal and backup is closed, master will sync close if
master power recovers.
NOTE: Controller is in auto mode, if failed to close or close inhibit occur in transferring process,
corresponding switch won't execute close action, but execute other switch that can control close to
supply for load. If failed to open occurs, switch won't execute action.
HAZARD: When controller is in auto mode, direct switch operation is inhibited!
when sync. parallel close is active, S1 and S2 may be in parallel. If system is S1 Mains S2 Mains,
please do the locking on switch side to prevent S1 and S2 close at the same time. Otherwise, it may
cause switch or lines burning or personal injury if it is serious.
