Delta Electronics ASD-B0121-A, User Manual

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Chapter 6 Control Modes of Operation
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ASDA-B Series
6-14
Revision January, 2009
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.
5 10
-5 -10
3000rpm
5000rpm
-3000rpm
-5000rpm
Analog Input Voltage (V)
The speed control ramp is
determined by parameter P1-40
Relevant parameters:
P1 - 40
▲
VCM
Max. Analog Speed Command or Limit Communication Addr.: 0128H
Default: rated speed Related Section:
Applicable Control Mode: S/T Section 6.3.4, P1-55
Unit: rpm
Range: 0 ~ 5000
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 3000rpm. If P1-40 is set to 3000, but the input voltage is changed to 5V,
then the speed command is changed to 1500rpm.
Speed command / limit = Input voltage x setting/10