Speed Sensor Monitoring - BONFIGLIOLI ACTIVE Cube ACU 201-01 Operating Instructions Manual

The synchronization of the rotor time constant as a function of the winding tempera-
ture can be adjusted. The default values should normally be sufficiently precise so
that neither an adjustment of the rotor time constants via the parameter
correction factor
parameter
please remember that the rotor time constant is calculated by the guided commis-
sioning via the machine data. The
temperature at which the optimization of the extended machine data was carried out.
The temperature can be read out via the actual value parameter
226 and can be used in the optimization for the parameter.
ture

18.7.3 Speed Sensor Monitoring

Failures of the speed sensor lead to a faulty behavior of the drive, as the measured
speed forms the foundation of the control system. By default, the speed sensor moni-
toring system continuously monitors the speed sensor signal, the track signals. If an
expansion module EM is connected, the number of division marks is monitored addi-
tionally. If, while the frequency inverter is released, a faulty signal is recognized for
longer than the timeout, a fault switch-off is affected. If the parameter
760 is set to zero, the monitoring function is deactivated.
mode
Operation Mode
0 - Off
2 - Error
The speed sensor monitoring is to be parameterized in the part functions according
to the application. The monitoring function becomes active with the release of the
frequency inverter and the start command. The timeout defines a monitoring time in
which the condition for the fault switch-off must be fulfilled without interruption. If
one of the timeouts is set to zero, this monitoring function is deactivated.
No.
761 Timeout: Signal fault
762 Timeout: Track fault
763 Timeout: Direction of rotation fault
Timeout: Signal fault
The actual speed measured is compared with the output value of the speed control-
ler. If the actual speed value is exactly zero for the time selected with the parameter
Timeout: Signal fault
played with the message "F1430".
Timeout: Track fault
The actual speed measurement monitors the sequence in time of the signals in the
quadruple evaluation of the speed sensor operation mode. If the speed sensor signal
is faulty for the time selected with the parameter
fault is displayed with the message "F1431".
Timeout: Direction of rotation fault
The actual speed measured is compared with the reference speed. If the sign be-
tween reference value and actual value differs for the time selected with the parame-
ter
Timeout: Direction fault
The monitoring function is reset when the drive mechanism has moved in the refer-
ence value direction by a quarter of a revolution.
Operating Instructions ACU
06/13
718 nor an adjustment of the temperature synchronization via the
Temperature coefficient
760
The function is deactivated
A fault message is displayed according to the timeouts set.
Parameter
Description
761, although a reference value is available, the fault is dis-
763, the fault is displayed with the message "F1432".
466 is necessary. If an adjustment is necessary,
Adjusting temperature
Function
Settings
Min.
0 ms 65000 ms
0 ms 65000 ms
0 ms 65000 ms
Timeout: Channel fault
Rated slip
467 is to be set to the
Winding tempera-
Operation
Max. Fact. sett.
1000 ms
1000 ms
1000 ms
762, the
253