Troubleshooting
4-6
Part 1618871
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01
2020 Nordson Corporation
Backplane
See Figure 4-3 and Table 4-2. Use the backplane LEDs to help diagnose
problems.
LED
Function
LED
Color
LED State
Fault Correction
−
12V
Power
Green
Normal: ON
Fault: OFF
Check +24 V on P4 (+24 V LED ON).
Check fuse F1.
Check jumpers J12 and J13 are in place.
Remove all gun cards. If +/
−
12 V LED turns ON,
replace one gun card at a time.
+12V
Power
Green
Normal: ON
Fault: OFF
+24V
Power
Green
Normal: ON
Fault: OFF
Check +24 V on P4 (+24 LED ON).
Check power supply PS1, DC OK green LED ON.
Check power supply PS1, AC OK green LED ON,
LED OFF, refer to PS1 in troubleshooting section
Power Supplies
+5V
Power
Green
Normal: ON
Fault: OFF
Check +24 V on P4 (+24 V LED ON).
Check fuse F2.
Check jumpers J11 and J14 are in place.
Remove all gun cards. If +5 V LED turns ON, replace
one card at a time.
Summary of Contents for Encore
Page 4: ...Change Record ii Part 1618871 01 2020 Nordson Corporation ...
Page 8: ...Table of Contents vi Part 1618871 01 2020 Nordson Corporation ...
Page 44: ...Installation 3 20 Part 1618871 01 2020 Nordson Corporation ...
Page 64: ...Troubleshooting 4 20 Part 1618871 01 2020 Nordson Corporation ...
Page 77: ...Parts 6 3 Part 1618871 01 2020 Nordson Corporation This page intentionally left blank ...
Page 94: ...Parts 6 20 Part 1618871 01 2020 Nordson Corporation ...