I/O Signal Wiring Examples - YASKAWA SGD7S Product Manual

4.5.3

I/O Signal Wiring Examples

Using a Rotary Servomotor
Sequence input signal
power supply input
Forward Drive Prohibit input
(prohibited when OFF)
Reverse Drive Prohibit input
(prohibited when OFF)
Origin Return Deceleration
Switch input
(LS active when ON)
External Latch Input 1
(latch when ON)
External Latch Input 2
(latch when ON)
External Latch Input 3
(latch when ON)
General-purpose
sequence input 0
Battery for
+
*2
absolute encoder
-
2.8 V to 4.5 V
*1.
represents twisted-pair wires.
*2.
Connect these when using an absolute encoder. If the Encoder Cable with a Battery Case is connected, do not
connect a backup battery.
*3.
The 24-VDC power supply is not provided by Yaskawa. Use a 24-VDC power supply with double insulation or
reinforced insulation.
*4.
Always use line receivers to receive the output signals.
Note: 1. You can use parameters to change the functions allocated to the /DEC, P-OT, N-OT, /EXT1, /EXT2, and
/EXT3 input signals and the /SO1, /SO2, and /SO3 output signals. Refer to the following section for details.
6.1 I/O Signal Allocations on page 6-4
2. If you use a 24-V brake, install a separate power supply for the 24-VDC power supply from other power
supplies, such as the one for the I/O signals of the CN1 connector.
If the power supply is shared, the I/O signals may malfunction.
Ω
4.7 k
+24 V *3
+24VIN 6
P-OT
7
N-OT
8
/DEC
9
/EXT1
10
/EXT2
11
/EXT3
12
/SI0
13
*1
BAT+
14
BAT- 15
Photocoupler outputs
Max. allowable voltage: 30 VDC
Max. allowable current: 50 mA DC
SERVOPACK
ALM+
3
Servo Alarm Output
ALM- (OFF for alarm)
4
/BK+
1
Brake output
2 /BK-
(released when ON)
23 /SO2+
/SO2-
24
25
/SO3+
26 /SO3-
17
PAO
18
/PAO
19 PBO
/PBO
20
21
PCO
22 /PCO
16 SG
Signal ground
Connector
shell
Connect shield to connector shell.
FG
Frame ground
4.5 I/O Signal Connections

4.5.3 I/O Signal Wiring Examples

*4
Encoder Divided
Pulse Output,
Phase A
*4
Applicable Line Receiver:
Encoder Divided
SN75ALS175 or MC3486
Pulse Output,
manufactured by Texas
Phase B
Instruments or the equivalent
*4
Encoder Divided
Pulse Output,
Phase C
4
4-37