TP-6126 8/0230 Section 4 Operation
Time delay engine start (TDES)
Preferred-to-standby time delay
Post-transfer load control (as programmed*)
Transfer to standby source
Generator set engine start contacts close
Pre-transfer load control (as programmed*)
In-phase monitor or transfer to off
(as programmed*)
Standby-to-preferred time delay
Post-transfer load control (as programmed*)
Transfer to preferred source
Pre-transfer load control (as programmed*)
Test started
Time delay engine cooldown (TDEC)
(as programmed*) (default = 0)
Generator set engine start contacts open
In-phase monitor or transfer to off
(as programmed*)
A
A
Test ended
* See the Setup Program Operation Manual.
Figure 4 -5 Test with Load Sequence
System Test
N
Available
N
Position
OFF
Position
E
Available
E
Position
Load
Control
Test
(flashing)
Engine Start Time Delay X X X
Preferred-to-Standby Time Delay X X X X
Pre-transfer to Standby Load Control X X X X X
Off-to-Standby Time Delay
(programmed-transition only)
X X X X
Post-transfer to Standby Load Control X X X X X
Pre-transfer to Preferred Load Control X X X X X
Off-to-Preferred Time Delay
(programmed-transition only)
X X X X
Post-transfer to Preferred Load Control X X X X X
Engine Cooldown Time Delay
(Default = 0)
X X X X
Figure 4 -6 User Interface LED Indicators During a Loaded Test