Omron SMARTSTEP A Series User Manual page 48

Standard Models and Specifications
Interface for RS-422
●
Pin Signal name
No.
20 RXD+ Reception data
21 RXD–
22 TXD+ Transmission data
23 TXD–
24 RT Terminating resistance terminal
19 GND RS-422A ground
CN1: Pin Arrangement
■
− feed pulse,
−PULS
− reverse pulse,
2
/−CW/−A
− phase A
− direction
−SIGN
signal,
4
/−CCW − forward pulse,
/−B
− phase B
Deviation
6 −ECRST
counter reset
Positioning
8
completed
INP
output
Output ground
10 OGND
common
12
RUN command
RUN input
14
16
Alarm reset
18
RESET
input
Note Do not wire the empty pins.
● CN1 Connectors (36P)
Servo Driver receptacle
Cable solder plug
Cable case
2-22
Function
+ feed pulse,
+PULS
1
+ reverse pulse,
/+CW/+A
+ phase A
+ direction
signal,
+SIGN
3
+ forward pulse,
/+CCW/+B
+ phase B
+ deviation
5
+ECRST
counter reset
Brake interlock
7
BKIR
output
9
11
Control DC
13
+24VIN
+24-V input
15
17
10236-52A2JL (Sumitomo 3M)
10136-3000VE (Sumitomo 3M)
10336-52A0-008 (Sumitomo 3M)
Contents
Interface for RS-422A transmission and reception.
Connect to pin 21 (RXD–) on the end Unit.
Ground for RS-422A.
Reception
RXD+
20
data +
Transmission
TXD+
22
data +
Terminating
resistance
24
RT terminal
26
28
30
Encoder
phase-Z
Z
32
output
34 ALM Alarm output
36
Chapter 2
Ground for
GND
19
RS-422A
Reception
21 RXD−
data −
Transmission
23 TXD−
data −
25
27
29
31
Phase-Z
33
ZCOM
output ground
Alarm output
ALMCOM
35
ground