Graco ProBell Electrostatic Controller Instructions And Parts page 62

Troubleshooting
Code Description
H17 Arc detection
both limits
H18 Arc detection
unspecified
H19 Arc detection
drive voltage
H91 Power Supply
Communication
Error
Internal Controller Errors
H20 Controller
mainboard
voltage
tolerance
H21 Controller
mainboard
voltage failure
H24 Memory
contents invalid
H25 Memory write
timeout
H26 Memory
shutdown error
H27 Memory verify
failure
H80 Safety controller
communication
Error
H81 Safety controller
self-test failure
H82
Safety controller
not alive
H83 24 VDC interlock
missing
62
Criteria
A grounded object came too
close to the applicator at too
high of a speed.
Arc detection triggered due to
unspecified reason
Power supply drive voltage
rose too quickly.
Communication between
controller and power supply
failed
Onboard generated voltage is
out of tolerance
24V supply drops below 21V.
Remark: No error code is
displayed, only logged.
Magic number doesn't match
expected value
Writing to EEPROM takes
longer than 10ms
Data to be written at power off
hasn't been properly saved to
the EEPROM
Verification of the data written
to the EEPROM failed
No response/timeout to
a request. Error report
on command execution.
Response data mismatch
The self-test performed by the
safety controller detected an
error
Heartbeat message timeout
24 VDC interlock removed
while electrostatics in operation
Controller Solution
Action
Stop • Verify closest distances to parts.
• Verify fastest approach to parts.
Stop
• Verify paint conductivity.
• Verify spraying parameters
Stop
associated with arc detection, see
Run Screen 2 (Arc Limits), page
Stop • Verify applicator power
cable connection, perform
Power Cable Continuity, page
replace cable if needed.
• Replace applicator power cable or
applicator power supply if needed.
None • Verify all connections inside of
controller are properly made.
• Verify power source is good.
Shutdown
• Replace 24 VDC board or power
board if necessary.
Initialize • Verify all connections inside of
defaults controller are properly made.
None
• Replace main board if necessary.
None • Do not turn off controller so quickly
after making setting changes.
• Verify all connections inside of
controller are properly made.
• Replace main board if necessary.
None • Verify all connections inside of
controller are properly made.
• Replace main board if necessary.
Stop
• Verify all connections inside of
controller are properly made.
• Clear error. If it returns, call for help.
Stop
• Replace main board if necessary.
Stop • Verify all connections inside of
controller are properly made.
• Replace main board if necessary.
Stop • Verify DIO cable connections.
• Verify connected interlocked devices
are functioning.
• Verify all connections inside of
controller are properly made.
• Replace main board if necessary.
52.
64, and
3A3657C