YASKAWA Sigma-7Siec Hardware Manual page 21

4.4.2 Using a Linear Servo Motor
Linear Servomotor overheat
protection input
Sequence input signal
power supply input
Forward Drive Prohibit input
(prohibited when OFF)
Reverse Drive Prohibit input
(prohibited when OFF)
General-purpose
sequence input 3
External latch signal 1 input
(General purpose input 4)
External latch signal 2 input
(General purpose input 5)
External latch signal 3 input
(General purpose input 6)
General-purpose
sequence input 0
* 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: 1. You can use parameters to change the functions allocated to the /SI0, /SI3,
2. If you use a 24-V brake, install a separate power supply for the 24-VDC
TH
5
4.7 k
+24 V *2
+24VIN 6
P-OT
7
N-OT
8
/SI3
9
/EXT1
10
/EXT2
11
/EXT3
12
/SI0
13
represents twisted-pair wires.
P-OT, N-OT, /EXT1, /EXT2, and /EXT3 input signals and the /SO1, /SO2,
and /SO3 output signals.
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.
4.4.2 Using a Linear Servo Motor
Photocoupler outputs
Max. allowable voltage: 30 VDC
Max. allowable current: 50 mA DC
SERVOPACK
Ω
ALM+
3
Servo Alarm Output
(OFF for alarm)
4 ALM-
/BK+
1
2 /BK-
23 /SO2+
/SO2-
24
25
/SO3+
26 /SO3-
17
PAO
18
/PAO
19 PBO
20 /PBO
21 PCO
22 /PCO
16
SG
Connector
shell
FG Connect shield to connector shell.
Frame ground
4 Inputs and Outputs
Brake output
(released when ON)
*1
*3
Encoder Divided
Pulse Output,
Phase A
Applicable Line Receiver:
*3
SN75ALS175 or MC3486
Encoder Divided
manufactured by Texas
Pulse Output,
Instruments or the equivalent
Phase B
*3
Encoder Divided
Pulse Output,
Phase C
19