Chapter 6 Control Modes of OperationASDA-AB Series

6.3.4 Analog Speed Input Scaling

The analog voltage between V_REF and GND determines the motor speed command. Using with parameter P1-40 (Max. Analog Speed Command) can adjust the speed control ramp and its range.

5000rpm

The speed control ramp is

determined by parameter P1-40

3000rpm

-10 -5

5

10

Analog Input Voltage (V)

-3000rpm

-5000rpm

Relevant parameters:

P1 - 40

VCM

Max. Analog Speed Command / Limit

Communication Addr.: 0128H

 

 

 

Default: rated speed

Related Section:

Applicable Control Mode: S/T

Section 6.3.4

Unit: r/min

 

 

Range: 0 ~ 10000

Settings:

In Speed mode, this parameter is used to set the speed at the maximum input voltage (10V) of the analog speed command.

In Torque mode, this parameter is used to set the speed at the maximum input voltage (10V) of the analog speed limit.

For example, in speed mode, if P1-40 is set to 3000 and the input voltage is 10V, it indicates that the speed command is 3000r/min. If P1-40 is set to 3000, but the input voltage is changed to 5V, then the speed command is changed to 1500r/min.

Speed command / limit = Input voltage x setting/10

6-18

Revision January 2009

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Delta Electronics ASDA-AB manual Analog Speed Input Scaling, Vcm, Max. Analog Speed Command / Limit Communication Addr H