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Operating instructions CMVpro 125-400 ATEX | Version 1-en
8.3.2
Frequency converter (FC) parameterization
NOTICE
Risk of damage due to erroneous parameterization
Unpredictable fan behavior resulting in damage.
u
Carry out parameterization carefully according to the FC operating instruc-
tions. The specialist shall be familiar with the FC. If necessary, consult the
supplier.
u
For basic setup, enter the motor data according to the nameplate on the
electric motor.
u
Enter the maximum frequency/speed limit according to the fan nameplate or
technical data sheet. For FC operation, additional min./max. frequency limits
are indicated on the motor nameplate (or additional nameplate)
_
u
Enter frequency and current limit according to manufacturer specifications.
u
Enter the acceleration and braking times with regard to the following table.
u
Record the parameters that were entered.
To prevent mechanically overloading the fan, observe these minimum permissi-
ble acceleration and braking times:
Electric motor nominal power [kW]
Acceleration/braking time [s]
< 1.5
min. 15
> 1.5
min. 30
To avoid an FC error message, a longer acceleration/braking time could be nec-
essary.
Parameterization for PM motors
Parameterization for PM motors differs significantly from three-phase motors.
The FC and motor manufacturers offer support for this.
8.3.3
Connecting the electric motor to a frequency converter (FC)
U
V
W
PE
M
3~
L1
L2
L3
PE
FU
Fig. 30:
Connection principle for short motor cable (FC close to fan)