58
Rockwell Automation Publication 20B-IN019E-EN-P - July 2013
PowerFlex 700 Adjustable Frequency AC Drive – Frames 0…6
Encoder Interface Option (Vector Control Only)
Encoder Terminal Designations
Encoder Specifications
Encoder Board Jumper Settings
No.
Description
See “Detail” on
page 53
8
+12V
(1)
DC Power
(1) Jumper sele5/12V is available on 20B-ENC-1 Encoder Boards.
Internal power source
250 mA.
7
+12V
(1)
DC Return (Common)
6
Encoder Z (NOT)
Pulse, marker or registration input.
(2)
(2) Z channel can be used as a pulse input while A & B are used for encoder.
5
Encoder Z
4
Encoder B (NOT)
Quadrature B input.
3
Encoder B
2
Encoder A (NOT)
Single channel or quadrature A input.
1
Encoder A
Type:
Incremental, dual channel
Supply:
12V, 250 mA. 12V, 10 mA minimum inputs isolated with differential transmitter, 250 kHz maximum.
Quadrature:
90°, ±27 degrees at 25 degrees C.
Duty Cycle:
50%, +10%
Requirements:
Encoders must be line driver type, quadrature (dual channel) or pulse (single channel), 8…15V DC
output (3.5…6V DC when jumpers are in 5V position), single-ended or differential and capable of
supplying a minimum of 10 mA per channel. Maximum input frequency is 250 kHz. The Encoder
Interface Board accepts 12V DC square-wave with a minimum high state voltage of 7.0V DC. With
the jumpers in the 5V position, the encoder accept a 5V DC square-wave with a minimum high state
voltage of 3.1V DC. In either jumper position, the maximum low state voltage is 0.4V DC.
8
1
J3
5/12V
(20B-ENC-2)
J3
J2
+12V
1
2
3
12 11
21
+5VREF
5/12V
(20B-ENC-1, Series B)
J3
+12V
1
2
3
+5VREF
1
2
3
+5V
+12V
1
2
3
1
2
3
+5V
+12V
1
2
3
+12V
+5V
12 11
21
12 11
21
Output
Config.
J3
Output
Config.
J2
Intput
Config.
