Rockwell Automation 20P PowerFlex Digital DC Drive - Manual (Page 83)

Rockwell Automation Publication 20P-UM001I-EN-P - February 2013 83
Installation and Wiring Chapter 1
Digital Encoder Terminal Block
The encoder connection cables should always be connected directly to the
terminals on the encoder terminal block. The encoder cable must be made up of
twisted pairs with the shield connected to the shield ground on the drive side. Do
not connect the shield to ground on the motor side. In some cases (for example,
cable lengths that exceed 100 meters), it may be necessary to ground the shield of
each twisted pair on the power supply. See page
214 for Digital Encoder
specifications.
Figure 53 - Digital Encoder Terminal Block Location
Table 37 - Digital Encoder Terminal Designations
Terminal Block Label Signal Description
A+ Encoder A Single channel A or dual channel
quadrature A input
A- Encoder A (NOT)
B+ Encoder B Single channel B or dual channel
quadrature B input
B- Encoder B (NOT)
Z+ Encoder Z Pulse, marker or registration input
(2)
(2) Selectable via switch S20 on the control board. See Table 26 on page 54 .
Z- Encoder Z (NOT)
COM +5/12…15V
(1)
DC Return Internal power common
+V +5/12…15V
(1)
DC Power
(1) Selectable via switch S21 on the control board. See Table 26 on page 54 .
Internal power source
200 mA
Digital Encoder
terminal block
Control board
EMI shield
Wire shield ground Wire shield ground
A-
B+
B-
Z+
A+
COM
+V
Z-