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6
Functions
46
Festo – GDCP-CMMP-M3-FW-EN – 1203NH
Zero balancing
With an externally specified voltage 0 volt, an undesired setpoint value can still be generated due to
voltage differences. For zero balancing, you can manually enter an offset in the FCT or execute syn-
chronisation automatically (recommendation).
Through zero balancing, the scaled range is divided asymmetrically (example Fig. 6.8: –750 …
+1250 R/min).
Safe Zero
Threshold value of the input voltage, up to which the setpoint value = 0 is set to achieve a defined rest
of the drive, for example in the speed control mode, independently of offset fluctuations, noise, etc.
•
Enter the threshold value U0
>
0 V an. If the input voltage UIN is in the range +U0 … –U0, the set-
point value = 0 is output. The offset set for zero balancing is taken into consideration.
Note that specifying the threshold value means that an appropriate setpoint range is no
longer available for the application.
Filter time constant
AIN0 is a 16-bit input. Due to the high resolution, a digital filter is activated.
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Specify the time constant to be used to filter the input voltage.
Содержание CMMP-AS-***-M3 Series
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