Chapter 4 Wiring and Introduction
EMSD5 AC Servo Manual
22
4.4.4 Digital Quantity Input And Output Signal
Signal Name
Pin No.
Function
Introduction
S
H
Digital
Input
DI1
20
20 Servo enable
Optocoupler input and function can
be programmable. Defined by
parameter P3 group( P3-0~P3-17).
The input voltage of COM is both of
common positive and negative
terminal. And input signal voltage is
12~24V.
In position mode (internal position
mode) and non-position mode,
please connect 24 V to pin 7, DI5 to
pin21, DI6 to pin 22. Or to connect
0 V to pin7, DI5 to 5 pin, DI6 to pin
6.
DI2
4
4
Alarm clearance
DI3
19
19 CW drive inhibition
DI4
3
3
CCW drive inhibition
DI5
-
18
Forward external torque
limit
DI6
-
2
Reverse external torque
limit
DI7
-
17 Zero-speed clamp
DI8
-
1
Zero instruction
PULS-
21
21
In position mode (internal
position mode) and
non-position mode
SIGN-
22
22
PULS+
5
5
SIGN+
6
6
PULLHI
7
7
COM
16
16
Common end of digital input
signals
Digital
Output
DO1+
31
31
S: Z signal output
H: Servo ready
Photo isolation output. Function can
be programmable.
Defined by parameter P3 group
( P3-20~P3-23).
DO1-
32
32
DO2+
33
33
Servo Alarm output
DO2-
34
34
DO3+
35
35 S: Positioning completion
H: Zero speed output
DO3-
36
36
DO4+
37
37 S: Magnetic brake
H: Position arrival
DO4-
38
38
DO5+
26
39 S: Z signal differential output
H: Speed arrival
DO5-
10
40
DO6+
-
41
Torque arrival
DO6-
-
42
◆
How to calculate the value of resistanceR1
：
VCC-1.5
R1+240
Table 4-1 R1 Recommendation
VCC Voltage
R1
Power
24V
2.4KΩ
0.5W
12V
1.5KΩ
0.5W
=10mA
