YASKAWA iQpump1000, Quick Start Manual

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5.2 Fault Detection
u
Fault Displays, Causes, and Possible Solutions
Faults are detected for drive protection, and cause the drive to stop while triggering the fault output terminal MA-MB-MC.
Remove the cause of the fault and manually clear the fault before attempting to run the drive again.
Table 5.2 Detailed Fault Displays, Causes, and Possible Solutions
HOA Keypad Display Fault Name
ACCUM
Accum Level
Accumulated Level Fault
The total volume of water flow measured over time by the flow meter has exceeded the fault level setting.
Cause Possible Solution
The accumulated level has exceeded the
values set in P6-11 to P6-14. This is only
effective when P1-15, Accumulated
Behavior is set to 2 (fault with manual
monitor reset) or 3 (fault with automatic
monitor reset.
Set the Accumulated Level fault characteristics in P6-11 to P6-14 and P6-16.
Drive response to this condition is controlled by P6-15, Accumulated Behavior.
Auto-restart of this fault is controlled by P6-15, Accumulated Behavior and P6-05, Flow Accumulation Reset.
HOA Keypad Display Fault Name
AJF
Anti-Jam Fault
Anti-Jam Fault
Cause Possible Solution
The drive was not able to clear debris from
the impeller in fewer than the number of
attempts set in P7-02. This is only effective
when P7-01, Anti-jam Operation is set to 1
(enabled).
• Check for proper pump operation. Remove debris from the pump impeller.
• Set the Anti-jam fault characteristics in P7-02 to P7-08.
• Drive response to this condition is controlled by P7-01, Anti-jam Operation Selection.
HOA Keypad Display Fault Name
Ana GeoTemp Lost
Switched to Net
Analog Geothermal Temperature Lost
Analog Geothermal Temperature has not been detected, and the Network Geothermal signal is now being
used.
Cause Possible Solution
• Defective or broken analog input source.
• H3-0
o
≠
21 (Geothermal Temperature).
• Ensure that the Geothermal Temperature source is installed and working properly. If there is none present,
set P9-60 to 3 so it will always read the Geothermal Temperature of another drive on the network .
• Set H3-0 o = 21 (Geothermal Temperature) if the analog input source is to be used for Geothermal.
Otherwise, set P9-02 to 3 if the drive does not have an analog Geothermal Temperature source.
HOA Keypad Display Fault Name
AnalogWL/SP Lost
Switched to Net
Analog Water Level / Suction Pressure Lost
Network Water Level / Suction Pressure 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 2 (Fault).
Suction Pressure Analog Input Wire Break (SP Wire Break) is effective when Q5-19 is set to 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).
• Confirm that the Water Level or Suction Pressure source is installed and working properly.
• Confirm that the Q4-16 and Q5-19 settings are correct.
• Set P9-50 to 3 if the drive does not have an analog input source.
HOA Keypad Display Fault Name
bAT Digital Operator Battery Voltage Low
Cause Possible Solution
The digital operator battery is low Replace the digital operator battery.
HOA Keypad Display Fault Name
boL
Braking Transistor Overload Fault
The braking transistor reached its overload level.
Cause Possible Solution
5.2 Fault Detection
YASKAWA TOEP YAIP1W 01A YASKAWA AC Drive - iQpump1000 Quick Start Guide 175
5
Troubleshooting