Troubleshooting
6-15
Part 1120277_01
E 2012 Nordson Corporation
Table 6-5 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 Input Manifold RTD
XP6 Input Reservoir RTD and reservoir overtemperature thermostat
X1 Output High-voltage to manifold heater
X2 Output High-voltage to reservoir heaters
X3 Output High-voltage to motor
X4 Output High-voltage and control voltage out to melt plate heaters
X5 Output High-voltage and control voltage out to hose/gun 1
X6 Output 24 VDC to expansion board
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 6-6 Expansion Board Components
Item Number Type Description
Indicators
DS1 LED 24 VDC present at X3
Connection Points
XT1 Input AC power into board
XT2 Output AC power out to power module (hoses/ guns 2 and 3)
XT3 Output AC power out to main board
XT7 Output/Input Positions 1–6 are control outputs; positions 7–14 are control inputs
X1/X2 Jumper Input voltage configuration plugs
X3 Input 24VDCinfrommainboard
X4 Input/output Ribbon cable connection between ex pansion board and power
module (hoses/guns 2 and 3)
J2 Input/output Ribboncableconnectionbetweenexpansionboardandmainboard
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