V-Belt Monitoring - BONFIGLIOLI Act 201 Operating Instructions Manual

Parameter
In multiple motor operation, it is assumed that for each data set a corresponding mo-
tor is used. For this, one motor and one motor protection switch are assigned to each
data set. In this operation mode, the rated values of the active data set are moni-
tored. The current output current of the frequency inverter is only taken into account
if the motor protection switch is activated by the data set. In the motor protection
switch of the other data sets, zero current is expected, with the result that the ther-
mal decay functions are taken into account. In combination with the data set change-
over, the function of the motor protection switches is similar to that of motors con-
nected alternately to the mains with their own protection switches.
Parameter
In single motor operation, only one motor protection witch, which monitors the output
current of the frequency inverter, is active. In the case of a data set change-over,
only the switch-off limits derived from the rated machine parameters are changed
over. Accumulated thermal values are used after the change-over as well. In the case
of the data set change-over, please ensure that the machine data are stated identi-
cally for all data sets. In combination with the data set change-over, the function of
the motor protection switch is similar to that of motors connected alternately to the
mains with one common protection switch.
Motor protection, in particular self-ventilation motors, is improved via the
Limit
output current in operating points below the frequency limit is assessed by a factor of
2 higher in the calculation of the trigger characteristic.
No.
572 Frequency Limit
17.6
Continuous monitoring of the load behavior and thus of the connection between the
3-phase machine and the load is the task of the V-belt monitoring system. The pa-
rameter
(sensor-less control) or the torque-forming current component
control method) is below the set
rameterized
188
188
Operation Mode
Operation Mode
572 which can be set as a percentage of the rated frequency. The measured
Parameter
Description

V-belt Monitoring

Operation Mode
Delay Time
Operation mode
581
0 - Off
1 - Warning
2 - Error
Operating Instructions ACTIVE
Operating Instructions ACTIVE
Multiple motor operation
571 = 1 or 11
Single motor operation
571 = 2 or 22
581 defines the function behavior if the
Trigger Limit Iactive
583.
The function is deactivated.
If the active current drops below the threshold value,
the warning "A8000" is displayed.
The unloaded drive is switched off and fault message
"F0402" is displayed.
Settings
Min. Max.
0 % 300 %
Active Current
Isq
216 (field-oriented
582 for longer than the pa-
Function
Frequency
Fact. sett.
0 %
214
06/07
06/07