Parameter descriptions
Unlike the operation of a conventional motor circuit breaker which disconnects the equipment to be
protected immediately if the trigger threshold is reached, this function provides the possibility of issu-
ing a warning instead of disconnecting the equipment immediately.
T
he rated current of the motor circuit breaker refers to the rated motor current stated via parameter
Rated Current 371 of the corresponding data set. The rated values of the frequency inverter are to
be considered accordingly when it comes to dimen-
s
ioning the application.
T
he function of the motor circuit breaker can be linked to different data sets. In this way, it is possible
to operate different motors via one frequency inverter. Thus, each motor can be equipped with its
own motor circuit breaker.
In case a motor is operated via the frequency inverter for which some setting values, e.g. minimum
and maximum frequency, are changed via the data set switch-over, only one motor circuit breaker
may be installed. This functionality can be set for single or multi-motor operation via parameter
Oper-
ation Mode
571.
0 -
Off The function is deactivated. Factory setting.
1 -
K-Char.,Mul.Motor
Op.,Err.Sw.Off
In each of the four data sets, the rated values are monitored. Over-
loading the drive is prevented by the fault switch-off "F0401".
2 -
Char.,Sing.Motor,Err.
The rated values in the first data set are used independently of the
active data set. Overloading the drive is prevented by the fault switch-
11 -
K-Char.,Multi-Motor
Op.,Warning
In each of the four data sets, the rated values are monitored. Over-
loading the drive mechanism is signaled by a warning message
22 -
K-Char.,Single-
Motor,Warning
The rated values in the first data set are used independently of the
active data set. Overloading the drive mechanism is signaled by a
42 -
I²t, Single-Motor,
Error Switch Off
Please check chapter 7.10.6.2 „Motor Protection by I2t- monitoring“
51 -
I²t, Multi-Motor Op-
eration, Warning
Please check chapter Motor Protection by I
2
t- monitoring 7.10.6.2
„Motor Protection by I2t- monitoring“
53 -
I²t, Single-Motor,
Warning
Please check chapter 7.10.6.2 “Motor Protection by I
2
t- monitoring”
61 -
eration,
Warning and Error
Please check chapter 7.10.6.2 “Motor Protection by I2t- monitoring”
62 -
Warning and Error
Please check chapter 7.10.6.2 “Motor Protection by I
2
t- monitoring”
101-
K-Char.,Multi-Motor
Op.,Warning, stored
In each of the four data sets, the rated values are monitored. Over-
loading the drive is prevented by the fault switch-off "F0401". The
internal state of the Motor circuit breaker is stored reset stable. These
settings are to be used for short-time mains shut downs.
102-
Char.,Sing.Motor,Err.
Sw.-Off, stored
The rated values in the first data set are used independently of the
active data set. Overloading the drive is prevented by the fault switch-
off "F0401". The internal state of the Motor circuit breaker is stored
reset stable. These settings are to be used for short-time mains shut
111-
K-Char.,Multi-Motor
Op.,Warning,
stored
In each of the four data sets, the rated values are monitored. Over-
loading the drive mechanism is signaled by a warning message
"A0200".The internal state of the Motor circuit breaker is stored reset
stable. These settings are to be used for short-time mains shut downs.
122 -
K-Char.,Single-
Motor,Warning,
stored
The rated values in the first data set are used independently of the
active data set. Overloading the drive mechanism is signaled by a
warning message "A0200". The internal state of the Motor circuit
breaker is stored reset stable. These settings are to be used for short-
K-Char: K-characteristic of the motor circuit breaker
246
Operating Instructions
Agile
06/2013 Special functions
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