User guide

Chapter 2
Hardware Description
2-9
Main Control Board (A8) – The Main Control Board (Figure 2.7)
performs all control functions of the 1395 drive. Hardware located on the
board is used to support operation of the microprocessor program. The
primary functions performed include:
• Microbus interface.
• Control Firmware
• Analog signal interface
• Develop gate signals sent to the Power Stage Interface
Figure 2.7
Main Control Board Hardware Location
J2 J4
J5
Connection to Power
Stage Interface
Connection to
Programming Terminal
Connection to
Power Stage Interface
Encoder
Interface
J12
...
J10
123
...
J9
123
...
J8
123
VP
CP
Microbus Port A Microbus Port B
SP
J15
J7 J6
.
.
.
J14
.
.
J3
2
1
3
1
2