Graco TI12552a - Discrete I;O Board Diagnostics

Troubleshooting
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Discrete I/O Board Diagnostics
See FIG. 9 and FIG. 10 to troubleshoot the Discrete I/O board. Also see the System Electrical Schematic on pages
34 and 35.
F
IG. 9: EasyKey Control Boards and Terminal Strips
Display Board Barrier Board
Discrete I/O Board
(see F
IG. 10)
TI12496c
Pin 1
Pin 1
TI12958a
RS485 Integration A
Flow Rate Analog Common
Alarm Reset
Remote Stop
Digital Common
Gun Trigger
Flow Control Calibrate
Flow Rate Analog In
Potlife Alarm
Digital Common
General Alarm
RS485 Integration B
RS485 Integration Ground
RS485 Network A
RS485 Network B
RS485 Network Ground
Terminal Strips
(see detail above)
I/O Terminal Strip Detail
INPUTS
OUTPUTS