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3.6 Servo Section I/O Signal Connections
3.6.3 I/O Signal Wiring Examples
3
Wiring and Connection
s
3-37
3.6.3
I/O Signal Wiring Examples
When Using a Rotary Servomotor
*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.
Note: 1. You can use parameter settings to change some of the I/O signal allocations. Refer to the following section
for details.
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.
FG
Frame ground
Connect
s
hield to connector
s
hell.
Connector
s
hell
CN1
S
ERVOPACK
/BK_A+
/BK_B+
/BK_A-
/BK_B-
/
S
O
3
+
/
S
O
3
-
/
S
O4+
ALM_A+
ALM_B+
ALM_A-
ALM_B-
2
3
25
24
26
27
28
19
21
20
22
+24VIN
+24 V
4.7 k
Ω
1
4
10
6
12
5
11
7
1
3
8
14
P-OT_A
P-OT_B
N-OT_A
N-OT_B
/DEC_A
/DEC_B
/EXT_A1
/EXT_B1
/EXT_A2
/EXT_B2
/EXT_A
3
/EXT_B
3
BAT_A+
BAT_B+
BAT_A-
BAT_B-
17
3
5
18
3
6
3
9
/
S
O4-
Forward Drive Prohibit Input
(prohibited when OFF)
S
equence Input
S
ignal
Power
S
upply Input
External Latch Input 1
(latch when ON)
Origin Return Deceleration
S
witch Input
(L
S
active when ON)
External Latch Input 2
(latch when ON)
External Latch Input
3
(latch when ON)
Battery for ab
s
olute
encoder
∗2
2.8 V to 4.5 V
Rever
s
e Drive Prohibit Input
(prohibited when OFF)
Brake Output
(relea
s
ed when ON)
General-Purpo
s
e
S
equence Output
3
General-Purpo
s
e
S
equence Output 4
General-Purpo
s
e
S
equence Output 5
S
ervo Alarm Output
(OFF for alarm)
29
3
0
*1
*3
/
S
O5+
/
S
O5-
3
1
3
2
15
16
S
G
S
ignal ground
Photocoupler output
s
Max. allowable voltage:
3
0 VDC
Max. allowable current: 50 mA DC
+
-