Elmomc SimplIQ Command Reference Manuel d'utilisateur télécharger pdf (Page 22)

AS[N] - Analog Input Offsets Array

Purpose:

Compensates for offsets of the analog signals, which may be caused by the limited

precision of the

SimplIQ electronics.

At times, the signals at the A/D converter may be offset: that is, the A/D reading may be

non-zero when a zero reading is desired. This offset may disturb normal operation. An

offset reference or feedback signal may cause a motor to “crawl” when a complete stop is

desired.

The analog offset subtracts from the analog input as follows:

Corrected signal = A/D reading – Analog offset

 AS[1] - Analog input offset command for analog input #1, in volts

 AS[2] - Analog input offset command for analog input #2, in volts

Attributes: Type: Parameter, Real

Source: Program, RS-232, CANopen

Restrictions: None

Default values: 0 (RS), Non-volatile

Range: [-10.0…10.0] 5 mV resolution

Unit modes: All

Activation: Immediate

Note:

 To null the input offsets of the drive, short the analog inputs to ground. Then

set AS[1] = AN[1] and AS[2] = AN[2] for analog input #1 and #2 respectively.

 Each of Elmo’s SimplIQ drives support a different number of analog inputs.

For specific details consult the drive’s Installation Guide.

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Elmomc SimplIQ Command Reference Manuel d'utilisateur Page 22