YASKAWA iQpump1000 User Manual page 278

5.3 Alarm Detection
HOA Keypad Display
LT-1
Cause
The cooling fan has reached 90% of its
expected performance life.
HOA Keypad Display
LT-2
Cause
The main circuit and control circuit
capacitors have reached 90% of their
expected performance lives.
HOA Keypad Display
LT-3
Cause
The DC bus soft charge relay has reached
90% of expected performance life.
HOA Keypad Display
LT-4
Cause
IGBTs have reached 50% of their expected
performance life.
HOA Keypad Display
Main FdBk Lost
Using Backup FB
Cause
Wire-break on Analog Input Terminal
programmed for Primary PI Feedback
(H3-oo = B)
Main PI Feedback Transducer is broken.
HOA Keypad Display
Net Flow Meter
Lost, Chk Source
Cause
When P1-01 = 3, P6-01 > 0, and P9-40 = 3,
the flow meter function has not received a
valid flow rate from another drive that is
also running the flow meter function.
HOA Keypad Display
NETSCAN
Waiting for Master
Cause
278
Cooling Fan Maintenance Time
The cooling fan has reached its expected maintenance period and may need to be replaced.
Note: An alarm output (H2-oo = 10) will only be triggered if both (H2-oo = 2F and H2-oo =
10) are set.
Replace the cooling fan and set o4-03 to 0 to reset the Maintenance Monitor.
Capacitor Maintenance Time
The main circuit and control circuit capacitors are nearing the end of their expected performance life.
Note: An alarm output (H2-oo = 10) will only be triggered if H2-oo = 2F.
Replace either the control board or the entire drive. For instructions on replacing the control board, contact
Yaskawa or your nearest sales representative.
Soft Charge Bypass Relay Maintenance Time
The DC bus soft charge relay is nearing the end of its expected performance life.
Note: An alarm output (H2-oo = 10) will only be triggered if H2-oo = 2F.
Replace either the control board or the entire drive. For instructions on replacing the control board, contact
Yaskawa or your nearest sales representative.
IGBT Maintenance Time (50%)
IGBTs have reached 50% of their expected performance life.
Note: An alarm output (H2-oo = 10) will only be triggered if H2-oo = 2F.
Check the load, carrier frequency, and output frequency.
Main Feedback Device (H3-oo = B) lost.
Check the connection of the Main Feedback transducer.
Replace Main PI Feedback Transducer.
Net Flow Meter Loss
There is no drive on the MEMOBUS network with an analog flow meter.
• Set P9-40 to 0 if the drive has an operational flow meter connected to an analog or pulse input terminal.
• If another drive on the MEMOBUS network has a flow meter connected to an analog or pulse input
terminal, confirm that drive is online with parameter settings P6-01 > 0 and P9-40 = 0.
NETSCAN
Drive is waiting for a message from the master.
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
Minor Fault Name
Possible Solution
YASKAWA TOEP YAIP1W 01F YASKAWA AC Drive - iQpump1000 User Manual