Watlow 12LS Controller - Manual (Page 22)

3-8
3.2 TERMINAL BLOCK AND CONNECTOR LAYOUT
The ANAFAZE 12LS terminal blocks and connectors are assigned according to the following two pages. Subsequent
sections provide detailed connection descriptions.
12LS REAR PANEL
NOTES:
1. THE CH (LOOP NUMBER) +IN IS THE ANALOG POSITIVE OF THE INPUT SIGNAL FOR THAT LOOP.
2. -IN COM IS THE ANALOG COMMON NEGATIVE OF THE INPUT SIGNAL.
3. CTRL COM IS THE COMMON FOR THE DIGITAL I/O CIRCUITS, SERIAL COMMUNICATIONS, AND IS
CONNECTED TO THE NEGATIVE OF THE POWER SUPPLY.
4. THE COMMUNICATIONS SELECTION OF RS-232 OR RS-485 WILL DETERMINE THE FUNCTION OF
TERMINALS #23 AND #24. SEE SECTION 3.5.1 RS-232 CONNECTIONS AND SECTION 3.5.3.3 RS-485
CONNECTIONS.
5. TERMINAL #24 WILL SUPPLY +5VDC FOR THE SOURCE TO OPERATE THE GLOBAL ALARM AND
DIGITAL OUTPUTS WHEN USED WITH RS-232 COMMUNICATIONS.
6. DIGITAL OUTPUTS #8 AND #9 ARE DUPLICATED ON TERMINAL #19 AND #20 RESPECTIVELY AS
WELL AS THE RTB TERMINALS OF #14 AND #12.