TROUBLESHOOTING
Publication: 0028607 7-15
7
Wired pendant Wired pendant not
functioning
Pendant plug not fully
engaged in receptacle
• Reseat pendant plug.
• Plug into alternate receptacle.
Damaged pendant cable Replace wired pendant cable.
Power
distribution
Control system not
powered up
Ignition signal not present Fuse at chassis fuse panel.
Power not available to
control system modules
Check for ignition signal at control
panel main power relay.
Power for components of
the control system not
present
Component has blown
the fuse
Determine the cause of the
overcurrent.
Load on an output
exceeds the output limit
and has shut down
See module drawing for maximum
current ratings. Determine and correct
the cause of overcurrent.
Other electrical problem Inspect, and repair or replace faulty
components.
Electrical
troubleshooting
basics
Loss of power
immediately
Fuse blown by a short
circuit to ground
Determine the cause of the short
circuit.
Device connected to
output is exceeding the
maximum current rating
Determine the cause of the
overcurrent.
Loss of power after
period of time
Fuse blown by device
drawing too much current
that is too close to the
maximum amperage
rating
Determine the cause of the
overcurrent.
Control signal not present Output not on due to
missing input command
Check for proper input command and
LED.
Output on, but function
not working
Device failure Check for proper output and LED
illumination.
Output module in
overcurrent protection
mode
Disconnect device.
Table 7-2: Electrical Troubleshooting (Continued)
Function Symptom Probable Cause Solution
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