B&R ACOPOSinverter P84, Руководство пользователя

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Programming guidelines
ACOPOSinverter P84 User's Manual 2.10 181
Scaling of the assigned parameter
The assigned parameter's scale can be adapted according to requirements. In doing so, the analog input's upper
and lower limits will be changed via the corresponding parameter.
The parameters are specified in percent. 100% corresponds to the total variance range of the configured parameter.
Accordingly the following applies:
– 100% = Upper limit value - Lower limit value.
For example, for the parameter [M Motor +/-] (Stq) (varies between -3 and +3 times the rated torque), the
setting is 100% of 6 times the rated torque.
• The parameter [Scal. min AO1] (ASL1) changes the lower limit value: New value = lower limit value +
(range x ASL1). The value 0% (factory setting) will not change the lower limit value.
• The parameter [Scal. max AO1] (ASH1) changes the upper limit value: New value = lower limit value +
(range x ASH1). The value 100% (factory setting) will not change the upper limit value.
•
[Scal. min AO1] (ASL1) must always be less than [Scal. max AO1] (ASH1) .
Upper limit of the assigned parameter
100%
ASH1
ASL1
New scaling
Lower limit of the assigned parameter
Application example
The value of the motor current must be transferred to output AO1 at 0 to 20 mA, with a variation range of 2 in
the motor.
In motor is equal to 0.8 In of the inverter.
The parameter
[Motor current]
(OCr) varies between 0 and 2 times the rated current of the inverter or in the range
of 2.5 times the inverter rated current.
[Scal. min AO1] (ASL1) is not permitted to change the lower limit value and it remains 0% in accordance with
the factory setting.
[Scal. max AO1]
(ASH1) must change the upper limit value by 0.5 times the nominal torque, i.e. 100 - 100/5 =
80% (new value = lower limit value + (range x ASH1)).