YASKAWA iQpump1000 User Manual page 284

5.3 Alarm Detection
HOA Keypad Display
WL/SP/PIAux Lost
Switched to Net
Cause
• 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).
HOA Keypad Display
WrUn
Cause
The Run command has been applied and the
b1-11 Back Spin Timer is active.
284
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).
• 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.
Waiting for Run
Adjust Back Spin Timer b1-11 to the desired delay time. The drive will start normally after the b1-11 timer
expires.
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solutions
YASKAWA TOEP YAIP1W 01F YASKAWA AC Drive - iQpump1000 User Manual