△! CAUTION
◆Set the function code both “ F13” and “U59 ” before operating the inverter, and don’t change the functions during operation. The integrated thermal data are cleared immediately, when function code “ F13” or “U59 ” are changed. The overheat protection of resistor becomes invalid. When the function code
“F13” or “U59 ” are changed in the state where temperature rose, the overheat protection of resistor becomes invalid, too.
◆As there is a possibility of damaging the inverter, the resistor value less than standard applied value should not be available.
◆Make into one kind the resistor used as combination conditions for a braking resistor, and connect it so that the electric power is consumed equally in each resistor.
◆When the resistor which is instead of
◆When resistor values less than Standard applied resistor value is set to the function code, regeneration operation is invalid. OU alarm will be occurred.
◆If connection of resistor and setting value of resistor is not corresponded, there is a possibility of damaging the resistor and the inverter.
Failure may result.
U59 | Function for manufacturer |
| [40HP or more is corresponded] |
This function is available to release the overheating alarm (OH1) at the DC fan broken.
U 5 9 U S E R | 5 | 9 |
Set value : 00, 01 |
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Set value | Operation |
00OH1 alarm at DC fan broken
01No alarm at DC fan broken
△! CAUTION
◆It causes overheating trip (OH1,OH3) in the inverter, and the life time decrease such as electrolytic capacitors on the PCB in the unit by a partial rise temperature, and there is a possibility to the worst unit damage when left with the DC fan for an internal stir stops.
Be sure that set it to the fan exchange and the factory setting value again promptly after the DC fan for an internal stir stops. (Contact the fan exchange procedure Fuji Electric.)
Failure may result.
U60 Regeneration avoidance at deceleration
◆This function is available, when torque limit (brake) of F41( or E17) is set to “0%”.
U 6 0 U S E R | 6 | 0 |
Set value : 0, 1 |
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0 | Torque limit operation |
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1 | OU alarm avoidance operation |
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◆If function code U60 is set to “0”, braking torque is kept to about “0%” under acceleration, deceleration, constant speed state. Output frequency is controlled in correspond to the rapid change in motor load to prevent OU alarm. Deceleration time becomes longer than the set deceleration time (F08).
◆In case of setting value U60:1, Compared with setting value "0", it controls not to perform torque limit operation only at the deceleration time, but to prevent the rise of the DC voltage of the main circuit, and avoid OU alarm.
At this time, although deceleration time becomes longer than a setting value of F08, it becomes shorter than setting value"0" of U60. It may occur OU alarm, if load changes rapidly during deceleration.
U61 Voltage detect offset and gain adjustment
◆40HP or more :
It adjusts, only when a print board is replaced by maintenance, etc. If not necessary, do not use this function.
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Set value : 0, 1, 2 |
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| 0 | : Inactive |
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| 2 | : Voltage detect gain adjustment |
◆Set the function code in the following procedure.
If the inverter are operated without this adjustment after replacing the PC board, normal operation may not be able to be performed.
(Offset adjustment)
1)Confirm that the main power supply is turned ON, the motor wiring are connected and the motor has stopped (inverter operation command is OFF).
2)When the data of U61 is changed to "1", and the FUNC/DATA key is ON, the offset self adjustment is started. The display of “storing" of the keypad panel disappears several seconds later. When the set value returns to "0", adjustment is completed.
If the main power supply is turned OFF, while outputting alarm, motor is driving,
In this case, start the adjustment after removing the
(Gain adjustment)
1)Drive the motor in an arbitrary frequency of about 10 to 60Hz(However, constant speed) after
executing the
At this time, gain adjustment is available unrelated to the load state.
2)When the data of U61 is changed to "2", and the FUNC/DATA key is ON, the gain self adjustment is started. The display of “ storing" of the keypad panel disappears several seconds to 30 seconds later. When the set value returns to "0", adjustment is completed.
If inverter is not operated, this adjustment is not available.