ElmoMC SimplIQ Command Reference - Manual (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
ƒ
AS[1] - Analog input offset command for analog input #1, in volts
ƒ 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:
ƒ 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.
ƒ Each of Elmo’s SimplIQ drives support a different number of analog inputs.
For specific details consult the drive’s Installation Guide.
See also:
AG[N] , AN[N]
SimplIQ Command Reference Manual Alphabetical Listing
MAN-SIMCR (Ver. 4.5)
3-9