ElmoMC ExtrIQ Digital Servo Drives-Hawk - Manual (Page 70)

Hawk Installation Guide Technical Specifications
MAN-HAWIG (Ver. 1.401)
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70
4.8. Feedbacks
The Hawk can receive and process feedback input from diverse types of devices.
4.8.1. Feedback Supply Voltage
The Hawk has two feedback ports (Main and Auxiliary). The Hawk supplies voltage only to the
main feedback device and to the auxiliary feedback device if needed.
Feature Details
Main encoder supply voltage 5 V +5% @ 200 mA maximum
Auxiliary encoder supply voltage 5 V +5% @ 200 mA maximum
4.8.2. Main Feedback Options
4.8.2.1. 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 34: Main Feedback - Encoder Phase Diagram