gefran ADV200 User Manual

122 ADV200 • Functions description and parameters list
When the motor speed is equal to (PAR 2004 Rated speed / 2) the direct current of the MOTOR OVERLOAD func-
tion is equal to PAR 2002 Rated current * PAR 3206 Motor service factor, , whereas below that limit it is modied
following a linear pattern until PAR 2002 Rated current * 3206 Motor service factor * PAR 3218 Motor derat fac-
tor when the motor speed reaches zero.
The overload current of the MOTOR OVERLOAD function is obtained by PAR 2002 Rated current * 3206 Motor
service factor * PAR 3202 Motor ovld factor and is the maximum current that can circulate in the motor. If the
MOTOR OVERLOAD function is enabled the drive automatically sets the torque current limit so that Iout max. does
not exceed this value.
With the MOTOR OVERLOAD function a current equal to the Overload level is supplied to the motor for the maxi-
mum time set in PAR 3204 Motor ovld time, The slower the motor speed, the shorter the time allowed (see gure
at beginning of chapter).
After the set time, the MOTOR OVERLOAD function automatically sets the torque current limit so that Iout max.
does not exceed the direct current of the MOTOR OVERLOAD function.
When the motor current speed exceeds (PAR 2004 Rated speed / 2) and PAR 3216 Motor fan type = Auto fan,
the direct current is not reduced as cooling is sufcient.
When PAR 3216 Motor fan type = Servo fan, the direct current is not reduced as cooling is sufcient.
Menu PAR Description UM Type FB BIT Def Min Max Acc Mod
22.6.6 3218 Motor derat factor perc FLOAT 50.0 0.0 100.0 ERWS F_S
This parameter is used to set the derating factor. The value is expressed as a percentage of PAR 2002 Rated
current * PAR 3206 Motor service factor.
When the current motor speed is below (PAR 2004 Rated speed / 2) and PAR 3216 Motor fan type = Auto fan,
the protection intervention time must be reduced as cooling is insufcient.
At below (PAR 2004 Rated speed / 2) sthe protection intervention time is reduced by reducing the direct cur-
rent of the MOTOR OVERLOAD function.
When the motor speed is equal to (PAR 2004 Rated speed / 2) ) the direct current of the MOTOR OVERLOAD
function is equal to PAR 2002 Rated current * PAR 3206 Motor service factor, whereas below that limit it is
modied following a linear pattern until PAR 2002 Rated current * PAR 3206 Motor service factor * PAR 3218
Motor derat factor when the motor speed reaches zero.
The overload current of the MOTOR OVERLOAD function is obtained by PAR 2002 Rated current * PAR 3206
Motor service factor * PAR 3202 Motor ovld factor and is the maximum current that can circulate in the mo-
tor. If the MOTOR OVERLOAD function is enabled the drive automatically sets the torque current limit so that
Iout max. does not exceed this value.
With the MOTOR OVERLOAD function a current equal to the Overload level is supplied to the motor for the
maximum time set in PAR 3204 Motor ovld time, The slower the motor speed, the shorter the time allowed
(see graphs).
After the set time, the MOTOR OVERLOAD function automatically sets the torque current limit so that Iout max.
does not exceed the direct current of the MOTOR OVERLOAD function.
When the motor current speed exceeds (PAR 2004 Rated speed / 2) and PAR 3216 Motor fan type = Auto
fan, the direct current is not reduced as cooling is sufcient.
When PAR 3216 Motor fan type = Servo fan, the direct current is not reduced as cooling is sufcient.
If the value of parameter 3202 Motor ovld factor is 100 % the overload current of the Motor Overload func-
tion is equal to the continuous current of the Motor Overload function. In this case the drive behaves as if the
overload cycle has been executed and so sets the torque current limit so that Iout max is not more than the
continuous current, i.e. Rated current (PAR 2002) * Motor service factor (PAR 3206) * Motor derat factor
(PAR 3218).
We recommend setting parameter 3218 Motor derat factor to a value so that Rated current (PAR 2002) *
Motor service factor (PAR 3206) * Motor derat factor (PAR 3218) produces a result that is more than the
motor magnetisation current.

gefran ADV200 Specifications

General

Brand	gefran
Model	ADV200
Category	Inverter
Language	English