Section 40 00-02-0716
2013-06-03 - 31 -
Inputs and Outputs
When wiring to the EMS PRO Controller, please refer to the schematic illustrating connector pin outs
for the following list of dedicated I/O:
Digital Inputs
• 1-Auto Position of Key Switch
• 2-Man Position of Key Switch
• 3-Single, Float, or Momentary Start Contact
• 4-Single, Float, or Momentary Stop Contact
• 5-Pump Low Oil Level Switch (i.e. L-129)
• 6-Un-Assigned (Reserved for Future Use)
• 7-Pump Housing High Temperature Switch (N.C. Opens on Fault).
• 8-Auxiliary 1 (Switch to Ground or B+)
Analog Inputs
• 1-Engine Temperature Sender (Murphy ES2T or VDO) Set in SENDER TYPES (S39) to Default
to Murphy Senders.
• 2-Engine Oil Pressure Sender (Murphy ES2P or VDO) Set in SENDER TYPES (S39) to Default
to Murphy Senders.
• 3-Engine Low Coolant Level (Switch to Ground, e.g. L-150)
• 4-Engine Low Oil Level (Switch to Ground, e.g. L-129)
• 5-Fuel Level Sender (Murphy ES2F)
• 6-Discharge Pressure Transducer (4-20mA)
• 7-Local Potentiometer Throttling (0-5 VDC) (Option)
• 8-Pump High Oil Temperature (Switch to Ground, e.g. 20P)
• 9-System Level Transducer (4-20mA)
• 10-Auxiliary 2 (Switch to Ground)
• 11-Auxiliary 3 (Switch to Ground)
• 12-Temperature Start/Stop, 0-5 VDC (Murphy AIR TEMP – Model 12)
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