Toshiba TOSVERT VF-S15 Schnellstartanleitung Seite 50

 Setting of motor electronic thermal protection level 1 thr (Same as f173)  Setting of motor electronic thermal protection level 1 thr (Same as f173)
When the capacity of the motor in use is smaller than the capacity of the inverter, or the rated current of the motor When the capacity of the motor in use is smaller than the capacity of the inverter, or the rated current of the motor
is smaller than the rated current of the inverter, adjust thermal protection level 1 thr for the motor in is smaller than the rated current of the inverter, adjust thermal protection level 1 thr for the motor in
accordance with the motor's rated current. accordance with the motor's rated current.
Output current reduction factor Output current reduction factor
[Using a VF motor (motor for use with inverter)] [Using a VF motor (motor for use with inverter)]
 Setting of electronic thermal protection characteristics selection olm   Setting of electronic thermal protection characteristics selection olm 
Setting value Setting value
 
 
 
 
VF motors (motors designed for use with inverters) can be used in frequency ranges lower than those for VF motors (motors designed for use with inverters) can be used in frequency ranges lower than those for
standard motors, but their cooling efficiency decreases at frequencies below 6Hz. standard motors, but their cooling efficiency decreases at frequencies below 6Hz.
 Setting of motor electronic thermal protection level 1 thr (Same as f173)  Setting of motor electronic thermal protection level 1 thr (Same as f173)
If the capacity of the motor is smaller than the capacity of the inverter, or the rated current of the motor is If the capacity of the motor is smaller than the capacity of the inverter, or the rated current of the motor is
smaller than the rated current of the inverter, adjust the electronic thermal protection level 1  so that it fits smaller than the rated current of the inverter, adjust the electronic thermal protection level 1  so that it fits
the motor's rated current. the motor's rated current.
2) Motor 150%-overload detection time f f 6 6 0 0 7 7 2) Motor 150%-overload detection time f f 6 6 0 0 7 7
Parameter f607 is used to set the time elapsed before the motor trips under a load of 150% (overload trip 2) Parameter f607 is used to set the time elapsed before the motor trips under a load of 150% (overload trip 2)
within a range of 10 to 2400 seconds. within a range of 10 to 2400 seconds.
3) Inverter overload detection method f f 6 6 3 3 1 1 3) Inverter overload detection method f f 6 6 3 3 1 1
As this function is set to protect the inverter unit, this function cannot be turned off by parameter setting. As this function is set to protect the inverter unit, this function cannot be turned off by parameter setting.
The inverter overload detection method can be selected using parameter f631 (Inverter overload detection method). The inverter overload detection method can be selected using parameter f631 (Inverter overload detection method).
If the inverter overload trip function (ol1) is activated frequently, this can be improved by adjusting the stall operation If the inverter overload trip function (ol1) is activated frequently, this can be improved by adjusting the stall operation
level f601 downward or increasing the acceleration time acc or deceleration time dec. level f601 downward or increasing the acceleration time acc or deceleration time dec.
 = (150%-60s)  = (150%-60s)
Protection is given uniformly regardless of temperature by the 150%-60 sec overload curve. Protection is given uniformly regardless of temperature by the 150%-60 sec overload curve.
 = (Temperature estimation)  = (Temperature estimation)
This parameter adjusts automatically overload protection, predicting the inverter internal temperature rise. This parameter adjusts automatically overload protection, predicting the inverter internal temperature rise.
4) Electronic thermal memory f f 6 6 3 3 2 2 4) Electronic thermal memory f f 6 6 3 3 2 2
When the power is OFF, it is possible to reset or maintain the overload totaling level. When the power is OFF, it is possible to reset or maintain the overload totaling level.
This parameter's settings are applied both to the motor's electronic thermal memory and the electronic thermal memory This parameter's settings are applied both to the motor's electronic thermal memory and the electronic thermal memory
for inverter protection. for inverter protection.
[%]/[A] [%]/[A]
×1.0 ×1.0
×0.6 ×0.6
0 0
30Hz 30Hz
Note: The motor overload protection start level is fixed at 30Hz. Note: The motor overload protection start level is fixed at 30Hz.
Overload protection Overload protection
valid valid
valid valid
invalid invalid
invalid invalid
Output current reduction factor Output current reduction factor
[%]/[A] [%]/[A]
×1.0 ×1.0
×0.6 ×0.6
0 0
6Hz 6Hz
Note) The start level for motor overload reduction is fixed at 6 Hz. Note) The start level for motor overload reduction is fixed at 6 Hz.
Output frequency (Hz) Output frequency (Hz)
Overload stall Overload stall
invalid invalid
valid valid
invalid invalid
valid valid
Output frequency (Hz) Output frequency (Hz)
49
14 14
E6582383 E6582383
E6582383