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4.5 I/O Signal Connections
4.5.3 I/O Signal Wiring Examples
Speed Control with a Linear Servomotor
Speed reference
input (max. input
voltage: ±12 V)
External Force
Limit/Force
Feedforward
(max. input
voltage: ±12 V)
Absolute Data
Request input
Linear Servomotor Overheat
Protection input
Sequence input signal
power supply input
Servo ON input
(servo ON when ON)
Proportional Control input
(Proportional action
when ON)
Forward Drive Prohibit input
(prohibited when OFF)
Reverse Drive Prohibit input
(prohibited when OFF)
Alarm Reset input
(reset when ON)
Forward External
Force Limit input
(limit when ON)
Reverse External
Force Limit input
(limit when ON)
*1.
*2.
Connect these when using an absolute linear encoder.
*3.
You can enable this function with a parameter setting.
*4.
The 24-VDC power supply is not provided by Yaskawa. Use a 24-VDC power supply with double insulation or
reinforced insulation.
*5.
Always use line receivers to receive the output signals.
Note: If you use a 24-V brake, install a separate power supply for the 24-VDC power supply from other power sup-
plies, 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.
4-32
CN1
*1
V-REF
5
D/A
SG
6
9
T-REF
D/A
*3
10
SG
4
SEN
+5 V
*2
2
SG
0 V
TH
50
+24 V *4
+24VIN
47
/S-ON
40
41
/P-CON
42
P-OT
43
N-OT
44
/ALM-RST
45
/P-CL
46
/N-CL
represents twisted-pair wires.
SERVOPACK
37
38
A/D
39
33
34
35
36
19
20
48
49
Ω
4.7 k
1
25
26
27
28
29
30
31
32
Connector
shell
FG
Connect shield to connector shell.
Frame ground
ALO1
Alarm Code Output
ALO2
Max. allowable voltage: 30 VDC
Max. allowable current: 20 mA DC
ALO3
*5
PAO
Encoder Divided
Pulse Output,
/PAO
Phase A
*5
PBO
Encoder Divided
Pulse Output,
/PBO
Phase B
*5
PCO
Encoder Divided
Pulse Output,
/PCO
Phase C
*5
PSO
Absolute linear
encoder position
/PSO
output
SG
Signal ground
/V-CMP+
Speed Coincidence
/V-CMP-
Detection output
(ON when speed coincides)
/TGON+
Movement Detection Output
/TGON-
(ON when value
exceeds the setting)
Photocoupler outputs
/S-RDY+
Max. allowable voltage: 30 VDC
Servo Ready Output
Max. allowable current: 50 mA DC
/S-RDY-
(ON when /S-ON signal
can be received)
ALM+
Servo Alarm Output
ALM-
(OFF for alarm)
S_Analog
Applicable Line Receiver:
SN75ALS175 or MC3486
manufactured by Texas
Instruments or the equivalent
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Troubleshooting
