15.4.3 Error Acknowledgment
The frequency inverters feature various monitoring functions which can be adapted
via the error and warning behavior. Switching the frequency inverter off at the vari-
ous operating points should be avoided by an application-
related parameterization. If
there is a fault switch-off, this report can be given via the parameter Pro-
gram(ming)
34 or the logic signal can be acknowledged with parameter Error ac-
15.4.4 Timer
The time functions can be selected via the parameters Operation mode Timer 1 790
and Operation mode Timer 2 793
. The sources of the logic signals are selected with
the parameters Timer 1 83 and Timer 2 84 and processed according to the config-
15.4.5 Thermo contact
The monitoring of the motor temperature is a part of the error and warning behavior
which can be configured as required. The parameter Thermocontact 204
digital input signal to the defined Operation mode Motor-PTC 570 which is de-
scribed
in chapter "Motor Temperature". The temperature monitoring via a digital
input checks the input signal for the threshold value. Accord
ingly, a thermocontact or
an additional circuit must be used if a temperature-dependent resistor is used.
15.4.6 n-/M Control Change-Over
The field-orientated control procedures in configurations 230, 430, 530 and 630 con-
tain the functions for speed or torque-dependent control of the drive. The change-
over can be
done in ongoing operation, as an additional functionality monitors the
transition between the two control systems. The speed controller or the torque con-
troller is active, depending on the
164.
06/13 Operating Instructions ACU 197
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