Although the system allows the user to configure

channels on the Keyphasor Input Module to serve

as non-speed input types as described above,

there will be a decrease in accuracy on these

measurements when compared to PAV, PAS, PAA,

PAD, and PVT modules. The accuracy is decreased

from 1% of Full Scale Range to 2% of Full Scale Range

on all 3-wire (non-speed) connections from 0 to

40 kHz. These non-speed inputs also cannot be

utilized in SIL applications. The Keyphasor Input

Module can only be utilized in SIL applications when

configured for speed inputs.

Any channel on the module can be configured as a once

per-turn Keyphasor or a multiple-event-per-turn speed

signal from a rotating shaft or gear used to provide a

precision timing measurement. The Keyphasor Input Module

Speed Channels can be configured to support Recip Multi

Event Wheel speed signals.