Troubleshooting
4-2
Part 1102771A
E
2010 Nordson Corporation
Help Code Troubleshooting Chart
Code
Message
Correction
H07
Gun Open
Trigger the gun and check the display. If
A feedback is 0,
check for a loose gun cable connection at the gun receptacle.
Check for a loose connection to the power supply inside the
gun. Perform the
Gun Cable Continuity Tests
on page 4-11. If
the cable and the connections are okay, check the spray gun
power supply.
H10
Gun Output Stuck Low
With the gun triggered on and the kV set to maximum, use a
multimeter set for VRMS to check for voltage between J4 pins
1 and 2 on the main control board. If no voltage is present
replace the main control board.
H11
Gun Output Stuck High
Make sure kV is set to 0 and the gun is triggered OFF. The
A
display should read 0. If
A display is greater than 0, replace
the main control board. Make sure trigger icon on the
interface is off.
H12
Communications Fault CAN
Bus
Check the power unit/interface interconnect cable. Make sure
the cable connections are secure and the cable is not
damaged. Refer to page 4-11 for the cable continuity test.
Check the connections from the cable receptacle to the J1
terminal block on the main control board.
If all connections are secure but the fault persists replace the
cable.
H15
Over Current Fault (Cable or
Gun Short)
This fault can occur if the gun tip touches a grounded part
while spraying. This fault will turn the electrostatic output off.
Clear the help codes to reset the fault and resume spraying.
If the fault reoccurs, disconnect the spray gun power supply
from the gun cable inside the gun and trigger the gun on.
Refer to the
Power Supply Replacement
procedure in
Section
5, Repair
.
If the H15 code does not reappear, then the power supply is
shorted. Replace the spray gun power supply.
If the help code reappears, check the gun cable continuity and
replace it if shorted. Perform the
Gun Cable Continuity Tests
on page 4-11.
H19
Maintenance Timer Expired
The Maintenance Timer has exceeded its setting. Perform the
scheduled maintenance, then reset the maintenance timer.
Refer to
Section 3, Operation
, for reset instructions.
H21
Atomizing Air Valve Fault
Refer to the controller wiring diagrams in this section. Check
the wiring harness connection to J8 and the proportional valve
solenoid. Check the solenoid operation. Replace the valve if
the solenoid is not working.
H22
Flow-Rate Air Valve Fault
Refer to the controller wiring diagrams in this section. Check
the wiring harness connection to J7 and the proportional valve
solenoid. Check the solenoid operation. Replace the valve if
the solenoid is not working.
Continued..
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Страница 56: ...Troubleshooting 4 14 Part 1102771A E 2010 Nordson Corporation...
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