Graco VRM Instructions Manual page 65

Error
Code Error Name Error Description
The pressure difference
Pressure between the Red and Blue
P4D0
Imbalance material is greater than the
defined amount
Red Pressure
P6A1
Sensor Fault The pressure sensor is
Blue providing invalid/no pressure
P6B2 Pressure readings
Sensor Fault
Red Tank
T1A6 Low Fluid
Temp.
Blue Tank
T1B5 Low Fluid
Temp.
Red Inline
T1A3 Low Fluid
Temp.
Blue Inline
T1B1 Low Fluid
Temp. Fluid temperature is below the
defined low alarm limit
Red Hose
T1A2 Low Fluid
Temp.
Blue Hose
T1B4 Low Fluid
Temp.
Red Chiller
T1A7 Low Fluid
Temp.
Blue Chiller
T1B8 Low Fluid
Temp.
The hydraulic oil temperature
is approaching a level where
Oil Temp. damage is possible so the
T3H1
Cutback Motor Control Module is
limiting the output to a safe
level
Motor temperature is
approaching a level where
Motor Temp.
T3N1 damage is possible so the
Cutback
motor control module is limiting
the output to a safe level
313873C
Error
Type Cause
Dispense line is clogged
Pressure imbalance is
defined too low
Orifice blocks closed off
too much on one or both
Alarm
sides
Debris in the orifice block
Material fillers may have
packed out in an orifice
Out of material
Feed system defective
Alarm Loose/bad connection
Bad sensor
Alarm
No material in pump
Alarm
Alarm
Alarm Tripped circuit breaker
Alarm
Alarm
Alarm Low power
Cable unplugged/loose
Alarm
power
Alarm Bad heater(s)
No power to fan
Debris in fan or fan grill
Deviation
Low air volume from fan
No power to fan
Debris in fan or fan grill
Low air volume from fan
Advisory
Ambient environmental
conditions are too hot
Motor/pump coupler may
be rubbing on hydraulic
pump
Appendix D - ADM Event and Error Codes Overview
Solution
Ensure the material flow is equally restricted on both
material lines
On the ADM go into the setup screens -> System->
and ensure the pressure imbalance value is the
maximum acceptable to prevent unnecessary alarms
which will abort dispenses
Verify that one or both of the orifice blocks dispense
when adjusted to the fully open position then adjust
accordingly
Relieve system pressure then remove the orifice from
the orifice block and inspect for debris in the cavity
Relieve system pressure and remove the orifice from
the orifice block and inspect for pack out. Clean or
replace as necessary.
Fill tanks with material
Replace defective item
Check to ensure the pressure transducer is properly
installed and all wires are properly connected
Replace pressure transducer
Fill tanks
Visually check circuit breaker for a tripped condition
Measure voltage across input terminals on power line
filter. Voltage should measure between 190 and 264
Vac
Check for loose or disconnected wires or plugs
Measure resistance of heater(s)
Check cord to make sure fan has power
Clear debris from fan/fan grill
Try to stop fan by lightly pressing on the center with a
pencil eraser. If the fan slows down easily it will need
to be replaced
Check cord to make sure fan has power
clear debris from fan/fan grill
Try to stop fan by lightly pressing on the center with a
pencil eraser. If the fan slows down easily it will need
to be replaced
Move machine to an area below 120°F
Reset coupler per specifications and retighten set
screws
65