Servotronix CDHD-003, Quick Start Manual

Page: 25 / 66

CDHD Control Board
Quick Start Guide 25
Controller I/O Interface
Pin Function Description Pin Function Description
1 24 VDC
return AP/AF Models: Return of
the user-supplied 24 VDC 19 24 VDC AP/AF Models: User
supplied 24V, for I/O
biasing
Common
output EC/PN Models Common
input EC/PN Models
2 Digital
output 1 Opto-isolated
programmable digital
output. Read using OUT1 20 Digital
input 2
Opto-isolated
programmable digital
input. Read using IN2
3 Digital
input 1 Opto-isolated
programmable digital
input. Read using IN1 21
4 Equivalent
encoder
output A- Low side of the equivalent
encoder output signal A
(RS422) 22 Equivalent
encoder
output A+
High side of the
equivalent encoder
output signal A (RS422)
5 Equivalent
encoder
output B- Low side of the equivalent
encoder output signal B
(RS422) 23 Equivalent
encoder
output B+
High side of the
equivalent encoder
output signal B (RS422)
6 Equivalent
encoder
output Z- Low side of the equivalent
encoder output index
(RS422) 24 Equivalent
encoder
output Z+
High side of the
equivalent encoder
output index (RS422)
7 25 Ground Digital ground
8 Analog
input 1+ High side of the
differential analog
command input
(±10 VDC) 26 Analog
input 1-
Low side of the
differential analog
command input
(±10 VDC)
9 Direction
input+ High side of the direction
signal (RS422), or
High side of the down
count signal
27 Direction
input-
Low side of the direction
signal (RS422), or
Low side of the down
count signal
Secondary
encoder
B+ High side of the
Secondary encoder input
signal B (RS422) Secondary
encoder B- Low side of the
secondary encoder input
signal B (RS422)