Vektek Guardian 2.0 User Manual page 44

Vektek Guardian™ 2.0 User's Guide
Troubleshooting
Symptom
MCU does not power on.
MCU does not communicate with
FIXTURE TRANSMITTER
Machine always shows the alarm.
If the preceding chart does not correct the problem, please contact Vektek Customer
Support at 1-800-992-0236 for additional assistance. Please have MCU version and
G e n e r a l P r o d u c t R e v . A I A W E C N - 5 5 8 1
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@ Copyright 1986-2025 by Vektek LLC****
Cause
1. No power
2. Bad Ground
1. Out of Range
2. FTU is covered in
chips.
3. FTU is damaged
4. Discharged Batteries
1. FTU reporting no
pressure
2. Machine is not using
correct logic to
interpret Guardian
output.
3. Logic of Guardian
outputs not correct.
Figure 73: TROUBLESHOOTING DIAGRAM
ID number available for technical support.
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Solution
1. Check ground
connection
2. Check from Positive
pin 2 to pin 1 Ground
for +10-36VDC
1. Replace Batteries
2. Clear chips.
3. Replace FTU.
4. Reattach cable or
replace cable.
5. Repair using add
pallet menu
1. Use Pressure Switch
Setter/Checker to
determine if
continuity is present
(pressure switch
contact is closed).
2. Invert Machine Logic
3. Check wiring.
4. Use Diagnostics menu
to toggle Main Contact
and check function of
input to machine.
5. Verify that the
Guardian relay output
is set as expected to
either Normally
Closed or Normally
Open.
6. Check connection of
Relay Common.
Connect Relay
Common to the
voltage for the proper
signal, 24V for a 24V
signal and 0V for a 0V
signal.
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