Amada Miyachi Unitek STA-100A, Operation Manual, Page: 105 / 154

STA SERIES AC CONTROLS
990-351 F-1
APPENDIX F
VALVE EXPANSION BOARD OPTION
Description
The Valve Expansion Board gives the Control
the ability to drive up to eight additional valves.
Each set of connections provides 115 VAC
(standard) or 24 VAC (optional) power to the
valve solenoid connected across those
connections.
Valve Expansion Board
Maintenance/Replacement
1 Disconnect the 26-pin ribbon
cable connector from the AC
Timer Main Board connected
to J3.
2 Disconnect the 2-wire cable
connector from the AC Timer
Main Board connected to J1.
3 Mark and disconnect the I/O
plugable terminal strips from
the board (J2A and J2B). See
the next illustration (Valve
Expansion Board Output
Signals) for a detailed listing
of signals.
4 Slide the card out of the card
cage.
Valve Expansion Board Connector Locations
I/O Connector
J3
To
AC Main Timer
J5
J2A J2B
J1
To
AC Main Timer
J16