295
Causes and corrective actions
(3) Alarm
When an alarm occurs, the output is not shut off. You can also output an alarm signal by making parameter setting.
(Set "98" in any of
Pr. 190 to Pr. 192 (output terminal function selection)
.
).
Operation panel
indication
MT
FR-PU04
——
FR-PU07
MT
Name
Maintenance signal output
Description
Indicates that the cumulative energization time of the inverter has reached a given time.
When the setting of
Pr. 504 Maintenance timer alarm output set time
is the initial value (
Pr. 504
= "9999"), this warning
does not occur.
Check point
The
Pr. 503 Maintenance timer
setting is larger than the
Pr. 504 Maintenance timer alarm output set time
setting.
Corrective action
Setting "0" in
Pr. 503 Maintenance timer
erases the signal.
Operation panel
indication
UV
FR-PU04
FR-PU07
——
Name
Undervoltage
Description
If the power supply voltage of the inverter decreases, the control circuit will not perform normal functions. In addition,
the motor torque will be insufficient and/or heat generation will increase. To prevent this, if the power supply voltage
decreases below about 115VAC (about 230VAC for 400V class, about 58VAC for 100V class), this function stops the
inverter output and displays
.
An alarm is reset when the voltage returns to normal.
Check point
Check that the power supply voltage is normal.
Corrective action
Check the power supply system equipment such as power supply.
Operation panel
indication
SA
FR-PU04
FR-PU07
——
Name
Safety stop
∗
Description
Appears when safety stop function is activated (during output shutoff).
Check point
If the indication appears when safety stop function is not used, check that shorting wires between S1 and PC, S2 and
PC are connected.
Corrective action
When not using the safety stop function, short across terminals S1 and PC and across S2 and PC with shorting
wire for the inverter to run.
If
is indicated when across S1 and PC and across S2 and PC are both shorted while using the safety stop
function (drive enabled), internal failure might be the cause. Check the wiring of terminals S1, S2 and PC and
contact your sales representative if the wiring has no fault.
∗
This function is only available for the safety stop function model.
Operation panel
indication
EV
FR-PU04
FR-PU07
——
Name
24V external power supply operation
Description
Flickers when the main circuit power supply is off and the 24V external power supply is being input.
Check point
Check if the 24V external power is supplied.
Check if the power supply for the inverter (main circuit) is ON. Check if the power supply voltage is low.
Check if the jumper between terminal P/+ and P1 is removed.
Corrective action
Turn ON the power supply for the inverter (main circuit).
If
appears by turning ON the power supply of the inverter (main circuit) while the external 24V power is
supplied, check the power supply (for the main circuit).
Check if the jumper is installed securely between terminal P/+ and P1.
.......Specifications differ according to the date assembled.
to check the SERIAL number.
Operation panel
indication
FN
FR-PU04
FR-PU07
FN
Name
Fan alarm
Description
For the inverter that contains a cooling fan,
appears on the operation panel when the cooling fan stops due to
an alarm or different operation from the setting of
Pr. 244 Cooling fan operation selection
.
Check point
Check the cooling fan for an alarm.
Corrective action
Check for fan alarm. Please contact your sales representative.
Содержание FR-E710W-0.1K
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Страница 335: ...335 APPENDIX This chapter provides the APPENDIX of this product Always read the instructions before using the equipment ...
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