Yaskawa iQpump Micro Quick Start - Manual (Page 79)

Digital Operator
Display
Fault Name
CPF22
A/D Conversion Fault
A/D conversion error.
CPF23 PWM Feedback Fault
CPF24
<1>
Drive Unit Signal Fault
The drive capacity cannot be detected correctly (drive capacity is checked when the drive is powered up).
CPF25 Terminal Board Not Connected
CPF26 to CPF35
CPF40 to CPF43
Control Circuit Error
CPU error
E5
SI-T3 Watchdog Timer Error
The watchdog timed out.
EF0
Option Card External Fault
An external fault condition is present.
EF1
Pump Fault (input terminal S1)
External fault at multi-function input terminal S1.
EF2
Pump Fault (input terminal S2)
External fault at multi-function input terminal S2.
EF3
Pump Fault (input terminal S3)
External fault at multi-function input terminal S3.
EF4
Pump Fault (input terminal S4)
External fault at multi-function input terminal S4.
EF5
Pump Fault (input terminal S5)
External fault at multi-function input terminal S5.
EF6
Pump Fault (input terminal S6)
External fault at multi-function input terminal S6.
EF7
Pump Fault (input terminal S7)
External fault at multi-function input terminal S7.
Err
EEPROM Write Error
Data cannot be written to the EEPROM
FAn Internal Cooling Fan Failure
FDBKL Wire Break
(FDB-L)
PID Feedback Loss
The analog input programmed for PID feedback has risen above 21 mA or fallen below 3 mA.
GF
Ground Fault
• A current short to ground exceeded 50% of rated current on the output side of the drive.
• Setting L8-09 to 1 enables ground fault detection in models 2V0020 to 2V0069 and 4V0011 to 4V0038.
HFB
High Feedback
The feedback signal is too high.
HWL
(HIH20)
High Water Level
The “High Water Level” digital input is active (H1-0o = 90).
LF
Output Phase Loss
• Phase loss on the output side of the drive.
• Setting L8-07 to 1 or 2 enables Phase Loss Detection.
LF2
Output Current Imbalance
One or more of the phases in the output current are lost.
LFB
Low Feedback
The feedback signal is too low.
LOP
Loss of Prime
The pump has lost its prime.
i.7 Troubleshooting
YASKAWA TOEP YAIQPM 02B YASKAWA AC Drive - iQpump Micro Quick Start Guide 79