TP-6126 8/0232 Section 4 Operation
Load Bank Control. The load bank control output can
be used to apply a load to the generator set during the
exercise. The load bank control output provides a
contact closure that can be used to signal the load bank
controller to operate. If the Normal source is lost during
an exercise period, the load bank control output contact
opens to remove the load bank and allow the transfer of
the building load to the emergency source. See Section
3.3.2 for the load bank control output connection.
Generator set engine start (immediate)
Exercise button pressed or scheduled
exercise signaled to begin
Time delay engine cooldown
(as programmed*)
Generator set engine start signal removed
Exercise time period ends or
exercise button pressed
Load bank control output
activated (as programmed*)
Load bank control output
deactivated (as programmed*)
* See the Setup Program Operation Manual.
Figure 4 -9 Exercise without Load Sequence
Time delay preferred to standby
Post-transfer load control (as programmed*)
Transfer to standby source
Generator set engine start
Pre-transfer load control (as programmed*)
In-phase monitor or transfer to off (as programmed*)
Time Delay standby to preferred
Post-transfer load control (as programmed*)
Transfer to preferred source
Pre-transfer load control (as programmed*)
In-phase monitor or transfer to off (as programmed*)
Exercise button pressed or scheduled
exercise signaled to begin
Time delay engine cooldown (as programmed*)
Generator set engine start signal removed
Exercise time period ends or
exercise button pressed
* See the Setup Program Operation Manual.
Figure 4 -10 Exercise with Load Sequence