310531 49
Troubleshooting and Fault Recovery
Warnings
(continued)
Table 6 — Fault Code Table
Fault
Code
Fault Name
Fault
Description
Causes
Solutions
19
Inlet Pressure
High
Input pressure to Precision-
Flo metering valve is above
the pper limit set for opera
Incorrect limit set
Check limit setting and correct
if necessary.
g
g
the upper limit set for opera-
tion.
Material supply pressure is too high
Decrease material supply
pressure
Failed transducer
Check transducer, replace if
failed
20
Outlet Pressure
High
Output pressure to the Pre-
cisionFlo metering valve is
Incorrect limit set
Verify limit is set correctly
High
cisionFlo metering valve is
above the upper limit set for
Dispense hose/device plugged
Clean/replace hose/device
above the u
er limit set for
operation.
Failed transducer
Check transducer, replace if
failed
21
Tip Pressure
High
Pressure measured at the
PrecisionFlo dispense tip is
Incorrect limit set
Verify limit is set correctly
High
PrecisionFlo dispense tip is
above the upper limit set for
Plugged tip
Clean or replace tip
above the u
er limit set for
operation.
Damaged tip
Repair or replace tip
22
Dispense Vol-
ume Low
Material dispensed during
the last dispense cycle was
Volume compensation is turned off
Turn on volume compensation
ume Low
the last dispense cycle was
more than 10% lower than
expected for that job.
Partially plugged tip or supply sys-
tem. Error is outside volume com-
pensation window
Clean tip and/or supply sys-
tem
Insufficient flow to PrecisionFlo me-
tering valve inlet. Error is outside vol-
ume compensation window
Increase flow rate to Preci-
sionFlo metering valve inlet
Material viscosity is outside volume
compensation window
Verify material characteristics
PrecisionFlo metering valve is not
regulating
Check PrecisionFlo metering
valve, repair if necessary
23
Dispense Vol-
ume High
Material dispensed during
the last dispense cycle was
more than 10% higher than
PrecisionFlo module volume com-
pensation is turned off
Turn on volume compensation
g
y
more than 10% higher than
expected for that job.
Material viscosity is outside volume
compensation window
Verify material characteristics
PrecisionFlo metering valve is not
regulating
Check PrecisionFlo metering
valve, repair if necessary. See
Form# 308601 for more in-
formation.
24
Temperature
Controller Fault
The temperature condition-
ing fault signal (input module
Conditioning system is turned off
Turn conditioning system on
Controller Fault
ing fault signal (in ut module
6) is 0 volts. This warning
tells the PrecisionFlo that
the temperature conditioning
Over/under temperature fault
Inspect temperature condition-
ing system
the tem erature conditioning
unit is not operating prop-
erly.
No temperature conditioning unit and
signal not jumpered to +24 volts
Connect a wire between termi-
nal 1561 and 1181 (tempera-
ture fault signal and +24 volts)