Generac Power Systems PWRcell Reference Manual page 62

Section 8 PWRcell ATS
Transferred to Standby – Generator Only Configuration
When the standby coil (C2) energizes it pulls the contactor to an "over center" position towards the STANDBY position,
the transfer switch electronically/mechanically snaps to that position. Upon closure of the main contacts to the
STANDBY position limit switches XA1 and XB1 mechanically actuate to "arm" the circuit for re-transfer to the UTILITY
position. When XB1 changes, it opens the circuit providing voltage to the standby closing coil (C2). Voltage from the
generator, connected through T1 and T2, provides power to customer connected loads.
NOTE: This is an example of Transfer Switch Operational Analysis. For troubleshooting use the operational analysis
with the appropriate wiring/schematic diagrams.
013561
Figure 8-17. Transferred to Standby
58 Diagnostic Repair Manual