This binary input affects the behavior of controller in TEST mode.
NOTE:
Before activation of this function
1. adjust setpoint ReturnTo mains to DISABLED (MGCB application only)
2. adjust MFStart enable to YES
3. switch controller to Test on load mode
Gen-set group starts and goes to load (in MGCB application, the MGCB is closed
first; the gen-sets are synchronized to the mains and close their GCBs) automatically
when this input is closed even if Mains is OK. Gen-set group stays running in parallel
with mains during the soft load transfer from the mains to the gen-set group until
power import from Mains goes under 5% of Nominal power but at least for
BreakerOverlap time. When the load is bigger than the sum of Nominal power of all
loaded gen-sets, MCB stays closed, BO WrnTstOnLdFail is closed and warning
message is issued (WrnTstOnLdFail).
MCB application:
When the controller is switched from Test on load mode (and Mains is OK), it
synchronizes the MCB and switches off the Sys start/stop output.
MGCB application:
When the controller is switched from Test on load mode (and Mains is OK), it
synchronizes the MCB, stays running in parallel for BreakerOverlap time (soft load
transfer), opens MGCB and switches off the Sys start/stop output.
During the load transfer from the gen-set group to the mains can the BreakerOverlap
time be shortened due to the influence of: Load ramp, MGCB open level, MGCB
open del setpoints.
NOTE:
You may cofigure both inputs needed for the Test on load function on one physical
binary input (i.e. Test on load and Remote TEST). See the drawing below. Test on
load is then switched on by only one physical switch.
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