Troubleshooting
6-7
Part 1032059B
E 2003 Nordson Corporation
Manual 41-DURABLUE-MA-02
Table 6-3 Main Board Components
Item Number Type Description
Indicators
DS2 Neon Power to tank heaters
DS3 Neon Power to pump heater
DS4 Neon Power into board
DS5 Neon Power to hose/gun 1 heaters
DS6 Neon Power to hose/gun 2 heaters
DS7t Neon Power to motor
DS8 LED Control signal for hose 1
DS9 LED Control signal for gun 1
DS10 LED Control signal for tank heaters
DS11 LED Control signal for motor
DS12 LED Control signal for gun 2
DS13 LED Control signal for hose 2
DS14 LED Control signal for pump heater
DS15 LED +5 VDC out of low-voltage power supply
DS17 LED Trigger closure present at XP3 or XP4
Fuses
F1/F2 –– Tank heaters (10 A, 250 V, fast-acting)
F3/F4 –– Main power to board (2A, 250 V, slow-blow)
F5/F6 –– Pump heater (5 A, 250 V, fast-acting, 5 x 20 mm)
F7/F8 –– Hose/gun 1 heaters (6.3 A, 250 V, 5 x 20 mm)
F9/F10 –– Hose/gun 2 heaters (6.3 A, 250 V, 5 x 20 mm)
F11/F12 –– Motor power (6.3 A, 250 V, 5 x 20 mm)
Connection Points
XT1 Input High-voltage power connection to board
J1 Input/output Signal ribbon cable between main board and CPU
XP1 Output Control voltage to gun solenoid 1
XP2 Output Control voltage to gun solenoid 2
XP3 Input Switch closure from handgun 1
XP4 Input Switch closure from handgun 2
XP5 Output Control voltage to pump RTD
XP6 Output Control voltage to tank RTD
X1 Output High-voltage to pump heater
X2 Output High-voltage to tank heaters
X3 Output High-voltage to motor
X4 Input/output High-voltage and control voltage out to hose/gun 1
X5 Input/output High-voltage and control voltage out to hose/gun 2
X7 Input Switch closure from melter control switch
Test Points
TP7 Contact +5 VDC out of low-voltage power supply
TP2 Contact Circuit common of low-voltage power supply
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