User guide

Chapter 2
Hardware Description
2-8
Power Stage Interface (A7) – The primary function of this board is to
provide interface between the Main Control Board, and the Power Bridge
boards such as the Pulse Transformer and Snubber boards, and the Power
Bridge boards such as the Pulse Transformer and Snubber boards and the
Feedback Board. The primary functions performed by the Power Stage
Interface (Figure 2.6) include:
• Distribution of DC Control power to Main Control Board.
• Provide 3 phase line synchronization signals to Main Control Board.
• Produce all Armature and Field bridge SCR gate signals from
control signals provided by the Main Control Board.
• Contactor and other logic control with interface to Main Control Board
for these functions.
Figure 2.6
Power Stage Interface Hardware Location
TB1
1A2
J8
J9
J1
J10
1
6
1
12
J6
J2
C3 C4
J3A J3B J3C J3D
J7
C45
...
J11
123
...
J12
123