SKS Sweden Bonfiglioli Vectron ACTIVE CUBE ACU 201 Series, Operating Instructions Manual, Page: 176 / 260

174
Operating Instructions ACU
09/08
14.4.3 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-
knowledgment
103.
14.4.4 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 confi-
gured timer functions.
14.4.5 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 links the
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. Accordingly, a thermocontact or
an additional circuit must be used if a temperature-dependent resistor is used.
14.4.6 n-/M Control Change-Over
The field-orientated control procedures in configurations 230 and 430 contain 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 controller is
active, depending on the
n-/M control change-over
164.
Operating Instructions ACU 09/08 174