4.9.4
Engine and Transfer Time Delays
The engine start and transfer time delays prevent
engine start and load transfer caused by brief variations
in the utility power source.
4.9.5
Load Control Time Delay
The load control time delay allows delayed starting of
large motor loads (such as air conditioners), preventing
simultaneous starting of large motors after transfer to
Generator
Set
1. RES or RESL generator set field-connection terminal block
2. Controller interface module location on the ATS, typical
3. Interface module connector P14
4. ATS1 through ATS4 on generator set field-connection terminal block
Figure 4-11 Model RRT Transfer Switch Connection to Generator Set Terminal Block
TP-6735 7/17
1
GM66565
4
the generator set. The load control time delay is fixed at
5 minutes. It is not adjustable.
The load must be connected to the load control output
on the interface board of the Model RRT transfer switch.
See the transfer switch operation and installation
manual for connection instructions.
4.9.6
Model RRT ATS Connection
See Figure 4-11 for Model RRT transfer switch
connection to the generator set.
Customer
connections
12- -24 AWG
3
2
GM63552
Section 4 Controller
ATS
ADV-7598
51