Pump-specific troubleshooting – Progressive International Electronics RLM User Manual
Page 54

Progressive International Electronics
RLM
Version 1.1 / November 98
Page 45
rlminstl.mnl
Diagnostics
Pump-Specific Troubleshooting
Tokheim
PROBLEM
RECOMMENDATION
Console to dispenser communication
May have wrong version adapter board in RLM-T (RS422
shuts down when adapter cable is
or standard)
connected.
LEDs are off and never flash.
Test twist-lock connectors for tightness.
Adapter cable connected incorrectly.
Wrong type adapter communications input used
— RS422/current loop.
For standard operation, connect adapter harness to
J3 and place jumpers on JP1. For RS422 operation,
connect adapter harness to J2 and place jumpers
on JP2.
Defective cable.
Only one LED is flashing (D2 or D3).
Check all cable connections.