Troubleshooting
6-14
Part 1120277_01
E 2012 Nordson Corporation
Identifying Electrical Components
Tables 6-5 through 6-9 provide detailed descriptions of the circuit board
indicators, connection points, and test points that are referred to in the
troubleshooting chart. Refer to the wiring diagram in Section 8, Technical
Data, for the location of each of these circuit board components.
Table 6-5 Main Board Components
Item Number Type Description
Indicators
DS2 Neon Power to reservoir heater
DS3 Neon Power to manifold heater
DS4 Neon Power to 5 VDC and 24 VDC power supplies
DS5 Neon Power to melt plate heaters
DS6 Neon Power to hose/gun 1 heaters
DS8 LED Control signal for melt plate heater
DS9 LED Not used
DS10 LED Control signal for reservoir heaters
DS11 LED Control signal for motor
DS12 LED Control signal for gun 1 heater
DS13 LED Control signal for hose 1 heater
DS14 LED Control signal for manifold heater
DS15 LED +5 VDC control voltage p resent
DS17 LED Trigger closure present at XP3 or XP4
Fuses
F1/F2 -- Reservoir heaters (10 A, 250 V, fast-acting)
F3/F4 -- 5 VDC and 24 VDC power supplies (2A, 250 V, slow-blow)
F5/F6 -- Manifold heater (5 A, 250 V, fast-acting, 5 x 20 mm)
F7/F8 -- Melt plate heaters (6.3 A, 250 V, 5 x 20 mm)
F9/F10 -- Hose/gun 1 heaters (6.3 A, 250 V, 5 x 20 mm)
F11/F12 -- Motor start (6.3 A, 250 V, 5 x 20 mm)
Continued...
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