ElmoMC SimplIQ Digital Servo Drives-Whistle Installation Guide - Manual (Page 62)

Whistle and Tweeter Installation Guide Technical Specifications
MAN-WHTWIG (Ver. 1.604)
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62
4.5. Feedbacks
The Whistle and Tweeter can receive and process feedback input from diverse types of devices.
4.5.1. Feedback Supply Voltage
The Whistle and Tweeter have two feedback ports (Main and Auxiliary). The drives supply
voltage only to the main feedback device. The user must provide a separate power supply for
auxiliary feedback devices if needed.
Feature Details
Main encoder supply voltage 5 V +5% @ 200 mA maximum
4.5.2. Main Feedback Options
4.5.2.1. Incremental Encoder Input
Feature Details
Encoder format A, B and Index
Differential
Quadrature
Interface RS-422
Input resistance Differential: 120 Ω
Maximum incremental encoder frequency Maximum absolute: 5 MHz pulses
Minimum quadrature input period (P
IN
) 112 nsec
Minimum quadrature input high/low period (P
HL
) 56 nsec
Minimum quadrature phase period (P
PH
) 28 nsec
Maximum encoder input voltage range Common mode: ±7 V
Differential mode: ±7 V
Figure 33: Main Feedback - Encoder Phase Diagram