Graco EFR Instructions-Parts List Manual page 28

Troubleshooting
Error Code Code Description
CACV Comm. Error Voltex
Dynamic Mix Valve
Module
CCCC Comm. Error
Gateway
DDDA Pump Cavitation A
DDDB Pump Cavitation B
DHDA Leak Detected
Outlet A
DHDB Leak Detected
Outlet B
F3NX Unable to Maintain
Flow Rate
28
Cause
No 24 VDC power supply to ADM
Cross threaded CAN cable
Automation gateway lost
communication with automation
controller
Out of material
Check valve not working properly
Out of material
Check valve not working properly
Pressure leaking from A side while
stalled at pressure
Pressure leaking from B side while
stalled at pressure
Pump is unable to deliver the
desired flow rate
Solution
Reconnect or replace CAN cable
connecting FCM and ADM. If CAN
connection good, check 24V power
supply wiring inside the controller
enclosure. Make sure AC power to
control enclosure is turned off before
checking power supply. Yellow LED
on FCM should be flashing.
CAN cables carry 24 V DC power
and communication between
modules. A cross threaded CAN
cable connector may cause
problems with communication
and/or power to modules. Carefully
check for cross threaded CAN
connections on the ADM and FCM.
Yellow LED on FCM board should
be flashing.
Verify fieldbus cable is properly
connected.
Verify host is communicating.
Verify A material supply
Inspect and clean A side check
valve. Check for leaking seals or
damage to the ball
Verify B material supply
Inspect and clean B side check
valve. Check for leaking seals or
damage to the ball
Visually inspect the machine and
hoses for signs of material leakage.
Inspect seals in pump and ball
check.
Visually inspect the machine and
hoses for signs of material leakage.
Inspect seals in pump and ball
check.
Reduce flow rate
Increase pump sizes
Measure line voltage. Low line
voltage may reduce maximum
operating flow rate.
3A6165J