gefran ADV200 WA Functions Description And Parameters List page 88

Menu PAR Description
22.4.2 3202 Motor ovld factor
Setting of the motor overload value. The value is expressed as a percentage of Rated current (PAR 2002) *
Motor service factor (PAR 3206).
The current obtained from Rated current (PAR 2002) * Motor service factor (PAR 3206) * Motor ovld fac-
tor (PAR 3202) 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. The MOTOR OVERLOAD function can be used to deliver current to
the motor at the overload value for a time set in Motor ovld time (PAR 3204). After the set time, the MOTOR
OVERLOAD function automatically sets the torque current limit so that Iout max. does not exceed Rated cur-
rent (PAR 2002) * Motor service factor (PAR 3206).
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).
Menu PAR Description
22.4.3 3204 Motor ovld time
Setting of the motor overload duration in seconds.
With the MOTOR OVERLOAD function a current equal to the level of Rated current (PAR 2002) * Motor
service factor (PAR 3206) * Motor ovld factor (PAR 3202) is supplied to the motor for the time set in Motor
ovld time (PAR 3204).
The MOTOR OVERLOAD protection intervention time depends on the level of current circulating in the mo-
tor, a current equal to the overload level is allowed for the time set in Motor ovld time a current at below the
overload level is allowed for longer.
This alarm can be assigned to a programmable digital output (Motor overload trip).
The trip time depends on the motor current value, see figure on previous page.
Menu PAR Description
22.4.4 3206 Motor service factor
Setting of the motor service factor. The value is expressed as a percentage of Rated current (PAR 2002).
Rated current (PAR 2002) * Motor service factor (PAR 3206) is the point at which the integrator logic is
enabled.
The current obtained from Rated current (PAR 2002) * Motor service factor (PAR 3206) * Motor ovld fac-
tor (PAR 3202) 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. The MOTOR OVERLOAD function can be used to deliver current to
the motor at the overload value for a time set in Motor ovld time (PAR 3204). After the set time, the MOTOR
OVERLOAD function automatically sets the torque current limit so that Iout max. does not exceed Rated cur-
rent (PAR 2002) * Motor service factor (PAR 3206).
Menu PAR Description
22.4.5 3216 Motor fan type
This parameter is used to set the type of motor cooling system.
0 Auto fan
1 Servo fan
Auto fan indicates the presence of a fan unit mounted on the motor shaft that therefore turns at a speed propor-
tional to the motor speed. Cooling is not very effective at low motor speeds.
Servo fan indicates the presence of an independent fan unit that therefore always runs at the rated speed. It en-
sures optimum cooling efficiency at all motor speeds.
When the current motor speed is below (PAR 2004 Rated speed / 2) and PAR 3216 Motor fan type = Auto fan; ,
the MOTOR OVERLOAD protection intervention time must be reduced as cooling is insufficient.
At below (PAR 2004 Rated speed / 2) the protection intervention time is reduced by reducing the direct current of
the MOTOR OVERLOAD function.
88
UM Type FB BIT
perc FLOAT
UM Type FB BIT
s FLOAT
UM Type FB BIT
perc FLOAT
UM Type FB BIT
ENUM
Def Min
150.0 100.0
Def Min
30.0 10.0
Def Min
100.0 25.0
Def Min
Servo fan 0
ADV200 WA • Functions description and parameters list
Max Acc Mod
300.0 ERWS VS
Max Acc Mod
300.0 ERWS VS
Max Acc Mod
200.0 ERWS VS
Max Acc Mod
1 ERW VS