YASKAWA iQpump1000 - Page 284

HOA Keypad Display Minor Fault Name
WL/SP/PIAux Lost
Switched to Net
Analog Water Level / Suction Pressure / Aux PI Feedback Lost
Network Water Level / Suction Pressure / Aux PI Feedback is now being used because a wire-break was
detected with the analog signal.
Water Level Analog Input Wire Break (WL Wire Break) is effective when Q4-16 is set to 1 (Alarm) or 2
(Fault).
Suction Pressure Analog Input Wire Break (SP Wire Break) is effective when Q5-19 is set to 1 (Alarm) or
2 (Fault).
Cause Possible Solution
• Defective or broken analog input source.
• Wire-break detected with the Water
Level / Suction Pressure analog signal
(H3-oo = 23).
• Wire-break detected with the PI Aux FB
Level analog signal (H3-oo = 27).
• Confirm that the Water Level, Suction Pressure, or Aux PI Feedback source is installed and working
properly.
• Confirm that the Q4-16, Q5-19, or Q6-19 settings are correct.
• Set P9-50 to 3 if the drive does not have an analog input source.
HOA Keypad Display Minor Fault Name
WrUn Waiting for Run
Cause Possible Solutions
The Run command has been applied and the
b1-11 Back Spin Timer is active.
Adjust Back Spin Timer b1-11 to the desired delay time. The drive will start normally after the b1-11 timer
expires.
5.3 Alarm Detection
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YASKAWA TOEP YAIP1W 01F YASKAWA AC Drive - iQpump1000 User Manual