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Installation and Troubleshooting Tips
Troubleshooting System
Components
Controller Area Network (CAN)
Problem: Network communication is not operating
properly.
D Under SETUP, the first option is ENABLE CAN.
Make sure the CAN is enabled. Follow the proce-
dure on page 21. Both types of control modules
(master and slave) ship from the factory with CAN
enabled.
D Check the condition of the CAN cable. Check
visually or use DIAGNOSTICS " CAN to check
out the CAN cable between control modules. See
page 28.
c. Put a keypad on the control modules at far
ends of the cable.
d. MANUALLY TEST CAN on each keypad. See
page 28. If the CAN cable is connected prop-
erly, each keystroke typed on one keypad will
display on the other keypad(s). This verifies
that the cable is properly wired, and each plug
is properly inserted in each intermediate con-
trol module.
e. To verify that each intermediate control module
is on-line, move to the remaining keypad/con-
trol module(s). Type the address number for
each control module on its keypad and watch
the other keypads for that number to appear.
64
308607
Solenoids
Problem:
D Use DIP Switch #8 to turn on all the solenoids. See
Fig. 1, page 10.
NOTE: The switch only turns on the solenoids
attached to that Control Module.
With the solenoids on, verify the wiring to the
solenoids and ready lights, flush out the plumbing
lines, and allow fluid to flow to check the meter
pulses.
D Use DIAGNOSTICS " SOLENOIDS to turn on
individual solenoids. See page 26.
NOTE: The Diagnostics work only on the control
module the keypad is attached to; you can not turn
on a solenoid on a remote control module using
Diagnostics.
D Verify that each ready light corresponds to the
proper solenoid. It is possible to have the light wired
to the wrong solenoid, which would produce a
symptom where either the right light comes on and
there is no fluid available, or the wrong light comes
on but the right fluid flows.
There are six LED lights on the control module
circuit board, next to the solenoid connectors. They
will light whenever a solenoid is signalled to turn
on.
Test the LEDs:
f.
Using DIP Switch #8,
g. Using SETUP " DIAGNOSTICS " SOLE-
NOIDS,
h. Or by entering an actual dispense job.
When first starting up a new system, start testing
by using switch #8. This will allow you to check out
all solenoids on a control module at once. If the
LEDs are on at the circuit board, but the ready
lights are not on at the dispense point, check the
cable from the control module to the dispense
point. Then use DIAGNOSTICS " SOLENOIDS
to ensure that only the expected solenoid opens
when signalled.
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Table of Contents
Troubleshooting
