154
Causes and corrective actions
Operation Panel
Indication
E.AIE
FR-PU04
Fault 14
FR-PU07
Analog in error
Name
Analog input error
Description
Stops the inverter output when 30mA or more is input or a voltage (7.5V or more) is input with the
terminal 2/4 set to current input.
Check point
Check the setting of
Pr. 73 Analog input selection
,
Pr. 267 Terminal 4 input selection
and voltage/current
input switch.
(Refer to chapter 4 of
the instruction manual (applied).)
Corrective action
Either give a frequency command by current input or set
Pr. 73 Analog input selection
,
Pr. 267 Terminal 4
input selection
, and voltage/current input switch to voltage input.
Operation Panel
Indication
E.4
FR-PU04
FR-PU07
Fault 4
Name
Converter overcurrent
Description
The current flows in the regeneration converter module exceeds the specified value, protective circuit
activates and stops the inverter output.
Check point
1. Check that sudden acceleration/deceleration is not performed.
2. Check for sudden load change.
3. Check that wiring is correct.
4. Check that instantaneous power failure did not occur.
5. Check that the thyristor load does not exist in the same power supply system.
Corrective action
1. Increase acceleration/deceleration time.
2. Keep load stable.
3. Wire the cables properly.
4. When a thyristor load exist in the same power supply system, install an AC reactor (FR-HAL).
Operation Panel
Indication
E.8
FR-PU04
FR-PU07
Fault 8
Name
Power supply fault
Description
· When overvoltage occurs in the converter side during input phase failure detection
· When overvoltage occurs in the converter side during instantaneous power failure detection
· When fault of power supply frequency is detected
· When phase shift is not detected
When any of the above conditions applied, it is judged as power supply and the inverter output is
stopped.
Check point
Check the power supply and wiring.
Corrective action
Perform wiring correctly.
Operation Panel
Indication
E.10
FR-PU04
FR-PU07
Fault 10
Name
Converter transistor protection thermal operation (electronic thermal)
Description
Current flowing in the module of the regeneration converter is less than the overcurrent shutoff level
and exceeds the specified value, electronic thermal relay activates for protection and the inverter
output is stopped.
Check point
· Check the motor for use under overload. (excess regeneration amount)
· Check that the thyristor load does not exist in the same power supply system.
Corrective action
· Reduce the load weight.
· When a thyristor load exists in the same power supply system, install an AC reactor (FR-HAL).
Summary of Contents for FR-A741-11K
Page 7: ...MEMO ...
Page 216: ...209 MEMO ...