Analog Input

If the drive command source is set to analog, then the analog input to the drive supplies the current or velocity command to the control loops of the drive. The default analog input screen displays a summary block diagram of the analog input. Double-click on a block in the diagram to change its value.

The following blocks can be configured on this diagram:

Block

Description

Parameter

Low Pass Filter Configuration

Sets the analog input low-pass filter cutoff frequency.

AIN#.CUTOFF

Offset Configuration

The value added to the analog input command to the drive.  This value compensates for the analog input signal (AIN#.VALUE) offset or drift.

AIN#.OFFSET

Deadband Configuration

The threshold for the deadband. This parameter is commonly used to reduce noise while the drive is stationary.

AIN#.DEADBAND,
AIN#.DEADBANDMODE

The diagram also indicates whether the Analog Input is configured to trigger an action in the Action Table. If it is not configured, it will report "Not Used."

Scaling

Scaling of analog inputs can be configured from the source tabs of the related loop (current/velocity/position).

Loop Scaling Parameter
Current Loop AXIS#.IL.AINSCALE
Velocity Loop AXIS#.VL.AINSCALE
Position Loop AXIS#.PL.AINSCALE

Related Parameters

AIN Parameters