YASKAWA iQpump Micro CIMR-PW Series User Manual page 272

6.4 Alarm Detection
LED Display LCD Display
Internally, the Safe Disable channel is broken. Replace the drive.
LED Display LCD Display
Hbbf
Cause
One of the Safe Disable channels is faulty.
LED Display LCD Display
Feedback Loss
flgt
Go To Freq.
Cause
PID feedback source is incorrectly installed
or is not working. Effective only when b5-12
is set to 3 (Run at b5-13).
LED Display LCD Display
Feedback Loss
fdb-l
Wire Break
Cause
PID feedback source is incorrectly installed
or is not working. This is effective only when
b5-12 Feedback Loss 4 to 20 mA Detection
Selection is set to 1 (alarm).
LED Display LCD Display
Freq. Ref Pump
pfref
Min (P1-06)
Cause
The frequency reference is set lower than
P1-06. The frequency reference is internally
set to the P1-06 value during this time.
This will only be active when the following
conditions are true:
• Drive is NOT in PID Mode
• Minimum Pump Frequency is enabled
(P1-06 > 0.00)
LED Display LCD Display
Freq. Ref
ptHrt
Thrust (P4-12)
Cause
The frequency reference is set lower than
P4-12. The frequency reference is internally
set to the P4-12 value during this time.
This will only be active when the following
conditions are true:
• Drive is NOT in PID Mode
• Thrust bearing is enabled (P4-12 > 0.00)
LED Display LCD Display
Hca
Cause
Load is too heavy.
272
Safe Disable Signal Input
HbbF
The safe disable input hardware is defective.
Replace the drive.
PID Feedback Loss
The drive will run at the speed set in b5-13, Feedback Loss Goto Frequency.
b5-13
• Confirm that the PID feedback source is installed and working properly.
• Drive response to this condition is controlled by b5-12, Feedback Loss 4 to 20 mA Detection Selection,
and b5-13, Feedback Loss Go To Frequency.
PID Feedback Loss
The analog input programmed for PID feedback has gone above 21 mA or fallen below 3 mA.
• Confirm that the PID feedback source is installed and working properly.
• Drive response to this condition is controlled by b5-12, Feedback Loss 4 to 20 mA Detection Selection,
and b5-13, Feedback Loss Go To Frequency.
• Auto-restart of this fault is controlled by L5-42, Feedback Loss Fault Retry Selection.
Minimum Pump Frequency Reference
Drive frequency reference is set lower than P1-06, Minimum Pump Frequency.
Increase the frequency reference to a value greater than P1-06.
Thrust Frequency Reference
The fixed frequency reference is set to a value lower than the P4-12, Thrust Frequency, setting.
Increase the frequency reference to a value greater than P4-12.
Current Alarm
HCA
Drive current exceeded overcurrent warning level (150% of the rated current).
Reduce the load for applications with repetitive operations (i.e., stops and starts), or replace the drive.
Minor Fault Name
Minor Fault Name
Possible Solutions
Minor Fault Name
Possible Solutions
Minor Fault Name
Possible Solutions
Minor Fault Name
Possible Solutions
Minor Fault Name
Possible Solutions
Minor Fault Name
Possible Solutions
YASKAWA TOEP YAIQPM 03B YASKAWA AC Drive - iQpump Micro User Manual