Toshiba TOSVERT VF-S15 Schnellstartanleitung Seite 48

5. Motor thermal protection 5. Motor thermal protection
CAUTION CAUTION
- Risk to damage the motor - - Risk to damage the motor -
Motor thermal protection will not be provided by the drive if the motor's Motor thermal protection will not be provided by the drive if the motor's
nominal current is 20% lower than that output of the drive. nominal current is 20% lower than that output of the drive.
In this case, find an alternative source of thermal protection. In this case, find an alternative source of thermal protection.
Failure to follow these instruction can result in equipment damage. Failure to follow these instruction can result in equipment damage.
The devices VF-S15 are provided with integral overload and over-speed protection for the motor after activation The devices VF-S15 are provided with integral overload and over-speed protection for the motor after activation
of this function by setting. of this function by setting.
Protection at 100% of the full load motor current. Protection at 100% of the full load motor current.
The motor thermal protection current (t t h h r r ) must be set to the rated current indicated on the motor The motor thermal protection current (t t h h r r ) must be set to the rated current indicated on the motor
nameplate. nameplate.
VF-S15 has the motor thermal protection. VF-S15 has the motor thermal protection.
Select the electronic thermal protection characteristics that fit with the ratings and characteristics of the motor. Select the electronic thermal protection characteristics that fit with the ratings and characteristics of the motor.
In case of multi motor operation with one inverter, thermal relay should be connected to each motor. In case of multi motor operation with one inverter, thermal relay should be connected to each motor.
 : Motor electronic-thermal protection level 1  : Motor electronic-thermal protection level 1
thr thr
 : Electronic-thermal protection characteristic selection  : Electronic-thermal protection characteristic selection
olm olm
f173 : Motor electronic-thermal protection level 2 f173 : Motor electronic-thermal protection level 2
  : Motor 150% overload detection time   : Motor 150% overload detection time
  : Inverter overload detection method   : Inverter overload detection method
  : Electronic-thermal memory   : Electronic-thermal memory
  : Overload alarm level   : Overload alarm level
• Function • Function
This parameter allows selection of the appropriate electronic thermal protection characteristics according to the This parameter allows selection of the appropriate electronic thermal protection characteristics according to the
particular rating and characteristics of the motor. particular rating and characteristics of the motor.
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E6582383