ElmoMC SimplIQ Digital Servo Drives-Drum HV - Manual (Page 74)

Drum HV (High Voltage) Installation Guide Technical Specifications
MAN-DRU-HVIG (Ver. 1.602)
www.elmomc.com
74
4.6. Feedbacks
The Drum HV (High Voltage) can receive and process feedback input from diverse types of
devices.
4.6.1. Feedback Supply Voltage
The Drum HV (High Voltage) has two feedback ports (Main and Auxiliary). The Drum HV (High
Voltage) 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
4.6.2. Main Feedback Options
4.6.2.1. 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 30: Main Feedback - Encoder Phase Diagram