beautypg.com

MTS Series 793 User Manual

Page 244

background image

Static Null Pacing (SNP)

Item

Callout

Amplitude

1

Command

2

Feedback

3

Time

4

Segment #1

5

SNP Hold

6

Segment #2

7

Tolerance

8

Error

9

SNP starts at end of Segment #1

10

SNP Starts

11

SNP Ends

12

Dynamic null pacing

If the error is too large, dynamic null pacing reduces the command frequency, allowing the sensor feedback
more time to track the command.

The frequency decreases until either of the following occurs:

The error comes within the user-specified Error Tolerance, at which time the frequency starts increasing
towards the command frequency.

The frequency decreases to the minimum frequency value (20% of the original frequency). The command
is then held at this frequency as long as the error remains out of tolerance. This condition is also known
as low cycle.

244 MTS Series 793 Control Software

Station Setup