Rockwell Automation 23P PowerFlex Digital DC Drive - Manual (Page 86)

86 Rockwell Automation Publication 20P-UM001K-EN-P - July 2014
Chapter 1 Installation and Wiring
Digital Encoder Terminal Block
Always connect the encoder connection cables 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 the PowerFlex Digital DC Drive Technical Data,
publication
20P-TD001 , for digital encoder specifications.
Figure 59 - Digital Encoder Terminal Block Location
Table 38 - 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 27 on page 76 .
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 27 on page 76 .
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-