YASKAWA SGD7S Product Manual page 122

4.5 I/O Signal Connections
4.5.3 I/O Signal Wiring Examples
Using a Linear Servomotor
Linear Servomotor Overheat Protection Input
CCW Drive Prohibit Input (prohibited when OFF)
CW Drive Prohibit Input (prohibited when OFF)
Origin Signal Input (LS active when ON)
External Stop Input (OFF to stop)
*1.
*2.
The 24-VDC power supply is not provided by Yaskawa. Use a 24-VDC power supply with double insulation or
reinforced insulation.
*3.
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.
4-34
Sequence Inputs
+24 V
Signal Power Input
represents twisted-pair wires.
SERVOPACK
TH 5
Ω
*2 4.7 k
+24VIN 6
CCW-OT
8
CW-OT
9
/HOME
11
EXSTOP
12
FG Connect shield to connector shell.
Frame ground
Photocoupler outputs
Max. allowable voltage: 30 VDC
Max. allowable current: 50 mA DC
ALM+
3
Servo Alarm Output (OFF for alarm)
ALM-
4
/BK+
1
Brake Output (released when ON)
2
/BK-
23 /WARN+
Warning Output (ON for warning)
24 /WARN-
Servo Ready Output
25
/S-RDY+
This output is ON when the control power
supply and main circuit power supply are
26 /S-RDY-
ON and a servo alarm has not occurred.
*1
17 *3
PAO
Encoder
Output Pulse
18 /PAO
Phase A
19 *3
PBO
Encoder
Output Pulse
/PBO
20
Phase B
21 PCO *3
Encoder
Output Pulse
22 /PCO
Phase C
16 SG
Signal ground
Connector
shell
Applicable Line Receiver:
SN75ALS175 or MC3486
manufactured by Texas
Instruments or the equivalent