Rockwell Automation 1395 Digital DC Drive FRN 5-10.10/9.30 - Manual (Page 49)

Chapter 3
Hardware Description
40 – 100 HP, 230VAC
75 – 200 HP, 460VAC
3-9
Power Stage Interface (A7) – The primary function of the 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 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 from the Main Control Board.
•
Contactor and other logic control with interface to Main Control Board
for these functions.