Estun E21 User Manual

E21 Installation Manual
13
Terminal No.
Signal
Description
15
COM2
Common port of system output signal must connect to 0V of I/O
power supply.
2.6.4 Definition of encoder interface
Encoder interface is DB-9 plug (female), definition of terminal is as shown in Table 2-5.
Table 2-5 Definition of encoder terminal
Communication mode
Incremental encoder terminal
Pin No.
3
4
5
1, 6
8, 9
2, 7
Signal definition
C
B
A
GND
NC
12V
[Note] GND of encoder cable can be connected to any pin among 1, 6, 8, and 9.
VCC of encoder cable can be connected to either 2 or 7.
2.6.5 Definition of communication interface
The device has integrated RS232 and RS485 serial interface, and the port adopts
DB-9 plug (male).
[Note] The RS232 used for upgrading device software only.
Terminal definition is as shown in Table 2-6.
Table 2-6 Definition of communication terminal
Communication Mode
RS232
RS485
-
Pin
2
3
8
9
5
1, 4, 6, 7
Definition
TXD
RXD
RS485A
RS485B
GND
NC

Estun E21 Specifications

General

Brand	Estun
Model	E21
Category	Controller
Language	English