Graco 234129, Инструкция по эксплуатации

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Troubleshooting
309738L 43
Troubleshooting
Check all possible solutions in the chart below
before you disassemble the regulator.
Troubleshooting for individual regulators and flow
meters is discussed in their separate manuals. These
manuals are called out in the parts lists later in this man-
ual. Also refer to the section on Troubleshooting and
Fault Recovery for detailed information on how fault
codes are communicated.
Fluid Modules
WARNING
Read Warnings, page 6.
Problem
Cause(s) Possible Solution(s)
No outlet pressure Air pressure low Verify air pressure is above 60 psi
(0.4 MPa, 4 bar)
No “Gun On” signal from automa-
tion unit
Check input from automation unit
No output signal from system I/O
board Check signal from system I/O
board, verify that a signal is being
sent (1-5 VDC)
No air signal to air diaphragm Check for loose/disconnected/worn
operations cable; tighten/replace as
required
Check for loose/disconnected DIN
connector to V/P valve; tighten
False signal being sent to control Check outlet pressure sensor out
put; verify that it corresponds to
zero pressure; replace sensor
and/or amplifier
High outlet pressure Needle/seat is worn Rebuild regulator; replace needle/
seat
Air leaks from fluid module Loose air connections Check air connections; tighten if
necessary
Worn gaskets Check/replace gaskets on V/P and
solenoid valve
Fluid module heater does not heat Temperature controller turned off Verify Zone is properly adjusted.
Loose electrical connections Verify connection between inlet
hose and fluid module connector
Verify connections between inlet
hose and main enclosure
Blown fuse Check/verify fuse in heater control
box
Broken heater element Check/verify heater resistance
Broken sensor Check/verify sensor resistance