Franklin Electric CERUS X-DRIVE CXD-003A-4V, Installation And Operation Manual, Page: 163 / 252

MAINTENANCE
Troubleshooting
163
TRAP
(93)
CPU Trap 0 error
CPU instruction error
Action and Reset
Action level Hardware detection
Action time Immediately
Reset method Cycle the power
Recorded Yes
Possible Causes Corrective Action
• Hardware failure
• EMI Interference
• CPU in infinite loop • Check wiring and grounding for possible interference
• If error cannot be reset, please call Technical Support
Fault Display Description
ULD (175)
Underload (M)
Dry well (belt loss). No load on motor.
Action and Reset
Action level Current or Torque is below
ULD Level [SET-42]
and above
ULD Frequency [SET-43]
Action time
ULD Delay [SET-44]
Related parameters Refer to “Underload Protection (Dry Well or Belt Loss)” on page 93
Reset method Manually or Automatically. Refer to “Underload Protection (Dry Well or Belt Loss)” on page 93
Reset condition Correct overloading condition
Recorded Yes
Possible Causes Corrective Action
• Over-pumped well
• Broken shaft or coupling
• Blocked screen, worn pump
• Air/gas locked pump
• X-Drive not set properly for pump end
• Underload Sensitivity setting
incorrect
• Frequency near maximum with load less than
ULD Level [SET-42]
.
• System is drawing down to pump inlet (out of water).
• High static, light loading pump - reset
ULD Level [SET-42]
if not out of water.
• Check pump rotation, reconnect if necessary for proper rotation.
• Air/gas locked pump - if possible, set deeper in well to reduce.
• Verify
Motor FLA [SET-03]
(SFA) setting is correct. For FE MagForce application, make sure
[SET-03]
matches pump load’s rated current.
Fault Display Description
WDTT
(71)
Watchdog
Watchdog error
Action and Reset
Action level Hardware detection
Related parameters N/A
Reset method Cycle the power
Reset condition N/A
Recorded Yes
Possible Causes Corrective Action
• Hardware interference • Verify the wiring of the control circuit and wiring/grounding of the main circuit to prevent interference.
• If the WDTT fault still exists, please call Technical Support.
Fault Display Description