ElmoMC Gold Line Digital Servo Drives-Gold Trombone - Manual (Page 81)

Gold Trombone Installation Guide (EtherCAT and CAN) Technical Specifications
MAN-G-TROIG-EC (Ver. 1.604)
www.elmomc.com
81
5.4. Feedback
5.4.1. Feedback Supply Voltage
The Gold Trombone has two feedback ports (Main and Auxiliary). The Gold Trombone supplies
voltage only to the main feedback device and to the auxiliary feedback device if needed.
Feature Details
Encoder supply voltage 5 V ± 5% @ 2 x 200 mA (maximum)
5.4.2. Feedback Options
The Gold Trombone can receive and process feedback input from diverse types of devices.
5.4.2.1. 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: 75 Megacounts per
second (18 MHz on A/B)
Minimum quadrature input period (PIN) 53 nsec
Minimum quadrature input high/low period
(PHL) 26 nsec
Minimum quadrature phase period (PPH) 13 nsec
Maximum encoder input voltage range Common mode: ± 7 V
Differential mode: ± 7 V
Figure 38: Main Feedback - Encoder Phase Diagram