Allen-Bradley PowerFlex 20-750-20COMM, Installation Instructions Manual

Page: 275 / 302

Rockwell Automation Publication 750-IN001O-EN-P - October 2014 275
I/O Wiring Chapter 5
Dual Incremental Encoder
Option Module
Table 88 - Dual Incremental Encoder Jumper Settings
Table 89 - Dual Incremental Encoder Specifications
20-750-DENC-1
20-750-S1 20-750-DENC-1
See Important statement on this page.
Jumper Enabled Position Storage Position
P3 - Safety Jumper
Enables use with speed
monitoring safety option
(20-750-S1).
P4 - 12V Jumper
Enables use with 12 volt
supply in “Enabled”
position and 5 volt supply
in “Storage” position.
Consideration Description
Input Differential or Single Ended operation, Constant Current Sink operation ~10 mA
5V DC minimum to 15V DC maximum sourcing 10 mA
minimum high state voltage of 3.5V DC
maximum low state voltage of 0.4V DC
Maximum Cable Length 30 m (100 ft) @ 5V, 183 m (600 ft) @ 12V
Maximum Input Frequency 250 kHz
IMPORTANT
When used with the Safe Speed Monitor option, both modules must be
installed on the same backplane using ports 4, 5, or 6.
P3 P3
P4 P4