Troubleshooting - Graco IPH-25 Series Installation & Operation Manual

Troubleshooting

F . 17: Error Alert Screen
IG
Error Codes
Error Code Error Icon Cause
E11
E50
E52
E53
E54
E55
E56
Key:
A
B
A key has been pressed for more than 30
seconds
Linear sensor fault, often caused if in Learn
mode and piston position measured is out-
side the expected range
Dispense valve is stuck open or one of the
material tanks is empty, leading to higher
dispensed quantity than requested
A piston stroke has taken more than 10 sec-
onds
This error code warns of the possibility of
inconsistent shots but will allow the
requested shot to occur. Shots requiring
less than 1/8 of a full piston stroke will trig-
ger this error code.
A shot has been requested that is above the
maximum allowable amount.
Learn mode failed to learn piston travel
range because:
1) Piston did not move during Learn mode
2) Linear sensor failure
A
B
Error Code
Error Icon
Possible Solutions
• Check shot controller for stuck key
•
Replace shot controller
• Check wiring and replace as necessary
• Check linear sensor and replace as necessary
• Learn mode will need to be used if linear
sensor is replaced
•
If dispense valve is stuck, the machine will auto-
matically attempt to release it
• The amount dispensed will be more than
requested when this error occurs
• Fill tank
• Adjust E52 alarm delay time from setup
screen #4
•
Verify that the gun safety is off
• Verify that the gun dispense valve is not stuck
closed
• Verify adequate hydraulic or pneumatic pressure
to machine
• Inspect for mechanical interference with the pis-
ton
•
Verify correct power to the proportioner piston
• Request a larger shot
•
Verify that shot volume variation is ok
• Request a smaller shot
• Repeat Learn mode
• Inspect the linear sensor and replace as neces-
sary
Troubleshooting
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