Troubleshooting
6-23
Part 1107600_03
2014 Nordson Corporation
Table 6-15 Main Board Components (contd)
Item Number Type Description
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 and tank overtemperature thermostat
X1 Output High-voltage to pump heater
X2 Output High-voltage to tank heaters
X3 Output High-voltage to motor
X4 Output High-voltage and control voltage out to hose/gun 1
X5 Output High-voltage and control voltage out to hose/gun 2
X6 Output 24 VDC to expansion board (not applicable)
X7 Input Unit on/off control switch
Test Points
TP7 Contact +5 VDC control voltage present
TP2 Contact Circuit common of low-voltage power supply
Table 6-16 I/O Expansion Card Components
Item Number Type Description
Indicators
DS1 LED Power indication
Connection Points
XT7-1 to XT7-8 Output Optional outputs on I/O expansion card (refer to Installing Melter Outputs in
Section 3, Installation)
XT7-9 to XT7-20 Input Optional inputs on I/O expansion card (refer to Installing Melter Inputs in
Section 3, Installation)
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