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Chapter 4
Measurement Definition
Tracking Filters
138
The dynamic measurement module of the Dynamix™ 1444 Series can apply up
to four tracking filters per channel. This page is used to configure these filters
and their measurements when at least one of the speed inputs is a TTL source
(Tacho Bus or TTL Input).
Tracking filters can be applied only for Module Personalities of:
• Real Time, 4 Ch – Dynamic (4 kHz) or Static
• Real Time, 4 Ch – Dynamic (4 kHz) – Dual Path
Additionally, the channel must be configured for Dynamic Measurements.
Up to four tracking filters can be configured per channel. Each filter can be
configured to track any order, from 0.25x to 32.0x, referenced to either of the
two tachometer inputs. Tracking filters apply a constant Q bandwidth (changes
with speed) and provide accurate measurements at any speed greater than
approximately 15 RPM.
Rockwell Automation Publication 1444-UM001D-EN-P - June 2018
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