BestCode NExT 88SHS - Troubleshooting CPU Problems

BestCode Next Series 8 Technical Manual October 2022 Page 185 of 290
Troubleshooting CPU Problems
LED #
Enabled Condition
Color
1
+12 V to Ink Pump (Always on)
Green
Troubleshooting
LED is not on
Solution 1:
There is a short in the Pump Cable.
Replace pump or repair cable damage.
Solution 2:
+12 V supply is compromised.
Replace the Power Supply.
2
+24 V to Ink Pump (Always on)
Green
Troubleshooting
LED is not on
Solution 1:
There is a short in the Pump Cable.
Replace pump or repair cable damage.
Solution 2:
Inspect LED 5. If LED 5 is also off, +24V supply is compromised. Replace
the Power Supply.
3
+3.3V on PhotoEye 1 (When in active state)
Green
Troubleshooting
LED is does not activate/de-activate with product detect.
Solution 1:
Photoeye Gain needs to be adjusted on the sensor.
Solution 2:
External photocell device is not wired correctly. Inspect cable
connections and refer to schematics.
Solution 3:
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.
4
+12 V supply to Valve Harness (Always on)
Green
Troubleshooting
LED is not on
Solution 1:
There is a short in the Valve Harness connection.
Inspect valves, valve harness for damage. Replace faulty valve/cable.
Solution 2:
+12V supply is compromised. Replace the Power Supply.
5
+24 V supply to Valve Harness (Always on)
Green
Troubleshooting
LED is not on
Solution 1:
There is a short in the Valve Harness connection.
Inspect valves, valve harness for damage. Replace faulty valve/cable.
Solution 2:
Inspect LED 2. If LED 2 is also off, +24V supply is compromised. Replace
the Power Supply.
Solution 3:
Test valve function on the fluidic screen.
If all valves work correctly, LED is bad. Replace Circuit board.
6
+3.3V on PhotoEye 2 (When signal received)
Green
Troubleshooting
LED is does not activate/de-activate with product detect.
Solution 1:
Photoeye Gain needs to be adjusted on the sensor.
Solution 2:
External photocell device is not wired correctly. Inspect cable
connections and refer to schematics.
Solution 3:
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
7
+3.3V on Encoder using PhotoEye 1 (Illuminates with each pulse)
Green
Troubleshooting
LED is does not activate/de-activate with pulses.
Printer does not print when encoder is enabled.
Solution 1:
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.
Solution 2:
Load new Firmware
Solution 3:
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