ElmoMC ExtrIQ Digital Servo Drives-Eagle - Manual (Page 77)

Eagle Installation Guide Technical Specifications
MAN-EAGIG (Ver. 1.902)
www.elmomc.com
77
4.4. Feedbacks
The Eagle can receive and process feedback input from diverse types of devices.
4.4.1. Feedback Supply Voltage
The Eagle has two feedback ports (main and auxiliary). The drives supply voltage to the main
and auxiliary feedback devices (200 mA to the main feedback and 200 mA to the auxiliary
feedback).
Feature Details
Main encoder supply voltage 5 V +5% @ 200 mA
Auxiliary encoder supply voltage 5 V +5% @ 200 mA
4.4.2. Main Feedback Options
4.4.2.1. 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 ns
Minimum quadrature input high/low period (P
HL
) 56 ns
Minimum quadrature phase period (P
PH
) 28 ns
Maximum encoder input voltage range Common mode: ±7 V
Differential mode: ±7 V
Figure 31: Main Feedback - Encoder Phase Diagram