Graco SaniForce STU Series, Operation

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Electro-pneumatic Control Panel Display Screens
ELECTRIC ELECTRIC ELECTRIC SHOCK SHOCK SHOCK HAZARD HAZARD HAZARD
To reduce the risk of electric shock when accessing
the electrical enclosure while power is present:
• All electrical work must be done by a qualified
electrician.
• Wear appropriate personal protective equipment.
Event Event Event
Type
Type Type Event Event Event Description Description Description
Error Error Error
Code
Code Code Cause Cause Cause Fix Fix Fix
Alarm Communication bus
power error V1CC Communication bus has lost power Restore power to communication bus
Alarm Control panel supply
pressure low P1PS Control supply pressure sensor
reads pressure less than the
minimum 30 psi required for
operation or less than 5 psi below
largest pressure required by the
current recipe Increase supply air pressure or reduce
pressure required by the current recipe
Alarm Control supply
pressure sensor error WMPC Control supply pressure
sensor reports an error Check control supply pressure sensor
and wiring
Alarm Emergency stop or I/O
power error V1CE I/O has lost power Restore I/O power, reset E-stop button
Alarm External interlock #1
open EBN1 Interlock #1 is enabled and tripped Close or disable interlock #1
Alarm External interlock #2
open EBN2 Interlock #2 is enabled and tripped Close or disable interlock #2
Alarm Laser position sensor
error WMCL Laser sensor reports an error Check Laser sensor and wiring
Alarm Laser sensor
obstructed
L9CL
An obstruction or unintended target
of the position sensor has been
detected
Ensure the laser has a clear line of sight
to the target
Alarm Pump supply pressure
low P1PP Pump supply pressure sensor
reads pressure more than 5 psi
below the pressure being driven Increase supply air pressure or reduce
pressure required by the current recipe
Alarm Pump supply pressure
sensor error WMPP Pump supply pressure
sensor reports an error Check pump supply pressure sensor and
wiring
Alarm Ram movement
timeout EU1R Upward ram movement has not
reached the minimum height
when the ram movement timeout
completes Check ram for obstructions to movement,
manually raise ram
46 3A5416E