Troubleshooting Cpu Problems - BestCode NExT 8 Series Technical Manual

Troubleshooting CPU Problems

LED # Enabled Condition
1 +12 V to Ink Pump (Always on)
Troubleshooting
Solution 1:
Solution 2:
2 +24 V to Ink Pump (Always on)
Troubleshooting
Solution 1:
Solution 2:
3 +3.3V on PhotoEye 1 (When in active state)
Troubleshooting
Solution 1:
Solution 2:
Solution 3:
4 +12 V supply to Valve Harness (Always on)
Troubleshooting
Solution 1:
Solution 2:
5 +24 V supply to Valve Harness (Always on)
Troubleshooting
Solution 1:
Solution 2:
Solution 3:
6 +3.3V on PhotoEye 2 (When signal received)
Troubleshooting
Solution 1:
Solution 2:
Solution 3:
7 +3.3V on Encoder using PhotoEye 1 (Illuminates with each pulse)
Troubleshooting
Solution 1:
Solution 2:
Solution 3:
8 +3.3V on Encoder using PhotoEye 2 (Illuminates with each pulse)
BestCode Next Series 8 Technical Manual
LED is not on
There is a short in the Pump Cable.
Replace pump or repair cable damage.
+12 V supply is compromised.
Replace the Power Supply.
LED is not on
There is a short in the Pump Cable.
Replace pump or repair cable damage.
Inspect LED 5. If LED 5 is also off, +24V supply is compromised. Replace
the Power Supply.
LED is does not activate/de-activate with product detect.
Photoeye Gain needs to be adjusted on the sensor.
External photocell device is not wired correctly. Inspect cable
connections and refer to schematics.
Check LED 2 & 5 for illumination. If dim, 24V supply to peripheral is
compromised. Inspect cable connections from J11, J14, J15,J17, J19, P4,
and P5 for shorts to ground.
LED is not on
There is a short in the Valve Harness connection.
Inspect valves, valve harness for damage. Replace faulty valve/cable.
+12V supply is compromised. Replace the Power Supply.
LED is not on
There is a short in the Valve Harness connection.
Inspect valves, valve harness for damage. Replace faulty valve/cable.
Inspect LED 2. If LED 2 is also off, +24V supply is compromised. Replace
the Power Supply.
Test valve function on the fluidic screen.
If all valves work correctly, LED is bad. Replace Circuit board.
LED is does not activate/de-activate with product detect.
Photoeye Gain needs to be adjusted on the sensor.
External photocell device is not wired correctly. Inspect cable
connections and refer to schematics.
Check LED 2 & 5 for illumination. If dim, 24V supply to peripheral is
compromised. Inspect cable connections from J11, J14, J15,J17, J19, P4,
and P5 for shorts to ground
LED is does not activate/de-activate with pulses.
Printer does not print when encoder is enabled.
Check the Adjust>Speed screen for Transport Frequency. If frequency is
not displayed, there is a break in the connection between the Printer
and the Encoder. Replace faulty peripheral components.
Update firmware to Newest Version 01.04.00.11+ and test.
Check LED 2 & 5 for illumination. If dim, 24V supply to peripheral is
compromised. Inspect cable connections from J11, J14, J15,J17, J19, P4,
and P5 for shorts to ground
January 2019
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