Graco PR70 Manual De Usuario

 

312393G 

 

24 of 50 

Stuck Key Error  

A key on membrane has been active (pressed) for > 30 seconds continuously.  
Replace the HMI.  This error code does not require user acknowledgment and 
will clear itself automatically if the condition is removed. 

Communication 
Error 

The Display module has lost communication with the Fluid Control Module.  
Material dispensing will be disabled if this condition exists.  Check 
communication cables between the 2 electronic components, or check the 
HMI and/or the Fluid Control Module. 

This error will be regenerated continuously while the condition exists. 

 

No or Invalid Run 
Token Error 

The Run Token in the FCM is missing (not installed), or does not have the 
correct data. 

 

Piston Stroke 
Time-out Error 

A piston stroke action has taken > 55 seconds.  Typically caused by no/too 
little air pressure to the machine or a mechanical interference with the piston 
has occurred.  Check machine input line pressure. 

 

Less than 
Minimum Shot 
Requested Error 

User has requested a shot < the minimum allowable size entered during 
calibration.   (< 15% of stoke, N/A in Operator Mode). 

 

Improper 
Calibration Error  

The calibration done on the machine is invalid, so the requested shot cannot 
be executed.   For instance, a Large Stroke Calibration Shot mass which is 
less than the Short Stroke Calibration Shot mass (C4 screen) will create this 
error code.  If the wiring to the linear position transducer is reversed this error 
will appear.  If invalid piston positions are calibrated into the machine (C1 
screen) this error will appear. 

 

Delta Velocity 
(“V”) Minus Error 

The piston velocity is slower than the calibration velocity measured, by the 
percentage amount selected by the user (20%, 40% or 60%).  If the user 
selects 0%, this monitoring or alarm feature is disabled. 

If generated, shot size accuracy may be degraded.  Typically the problem is 
created when the machine pressure regulator is adjusted to different value 
from when the machine was calibrated.  Another less likely cause could be a 
mechanical failure with dispensing (worn piston, etc.).  This error will not be 
generated for a purge shot or when the machine is in Operator mode. 

 

Delta Velocity 
(“V”) Plus Error 

The piston velocity is faster than the calibration velocity measured, by the 
percentage amount selected by the user (20%, 40% or 60%).  If the user 
selects 0%, this monitoring or alarm feature is disabled.   

If generated, shot size accuracy may be degraded.  Typically the problem is 
created when the machine pressure regulator is adjusted to different value 
from when the machine was calibrated.  Another less likely cause could be a 
mechanical failure with dispensing (worn piston, etc.).  This error will not be 
generated for a purge shot, or when the machine is in Operator mode. 

 

Low Material 
Level, Tank A 
Alarm or Error 

Tank A is low (only generated if tank sensing is enabled).  Fill tank A with 
material. 

Tank level errors will be generated after every shot if the condition still exists. 

 

Low Material 
Level, Tank B 
Alarm or Error 

Tank B is low (only generated if tank sensing is enabled).  Fill tank B with 
material. 

Tank level errors will be generated after every shot if the condition still exists.