ElmoMC AC Input Digital Servo Drives-Bassoon - Manual (Page 59)

Bassoon Installation Guide Technical Specifications
MAN-BASIG (Ver. 1.502)
www.elmomc.com
59
4.7. Feedback
The Bassoon can receive and process feedback input from diverse types of devices.
4.7.1. Feedback Supply Voltage
Feature Details
J3 (main encoder) supply voltage 5 V ±5% @ 200 mA maximum
J2 (auxiliary encoder) supply voltage 5 V ±5% @ 200 mA maximum
4.7.2. Incremental Encoder
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 31: Encoder Phase Diagram