Fuji Electric FRENIC-ECO, Инструкция по эксплуатации

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5-61
E80
E81
Detect Low Torque (Detection level)
Detect Low Torque (Timer)
The signal (U-TL) turns on when the torque calculated by the inverter with reference to its output
current has dropped below the level specified by E80 for the time longer than the one specified by
E81. The signal turns off when the calculated torque exceeds the level specified by E80 + 5%.
The minimum width of output signal is 100 ms.
You need to assign the "Low output torque detected" signal (U-TL) (data = 45) to the
general-purpose output terminals.
The detection level is set so that 100% corresponds to the rated torque of the motor.
In the inverter’s low frequency operation, as a substantial error in torque calculation occurs, no
low torque can be detected within the operation range at less than 20% of the base frequency
(F04). (In this case, the result of recognition before entering this operation range is retained.)
The (U-TL) signal goes off when the inverter is stopped.
Since the motor parameters are used in the calculation of torque, it is recommended that
auto-tuning be applied by function code P04 to achieve higher accuracy.
C33
C38
C43
Analog Input Adjustment for [12] (Filter time constant)
Analog Input Adjustment for [C1] (Filter time constant)
Analog Input Adjustment for [V2] (Filter time constant)
These function codes provide the filter time constants for the voltage and current of the analog
input at terminals [12], [C1], and [V2]. Choose appropriate values for the time constants
considering the response speed of the mechanical system as large time constants slow down the
response. In case the input voltage fluctuates because of noise, specify large time constants.
P01
Motor (No. of poles)
P01 specifies the number of poles of the motor. Enter the value shown on the nameplate of the
motor. This setting is used to display the motor speed on the LED monitor (refer to function code
E43). The following formula is used for the conversion.
(Hz) Frequency ×
poles of No.
120
(r/min) speed Motor
=
P02
Motor (Rated capacity)
P02 specifies the rated capacity of the motor. Enter the rated value shown on the nameplate of
the motor.
Data for P02 Unit Dependency on function code P99
kW P99 = 0, 3 or 4
0.01 to 1000
HP
P99 = 1