4 Inputs and Outputs
4.4.1 Using a Rotary Servo Motor
26
400 V SERVOPACKS
* 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 /SI0, /SI3,
P-OT, N-OT, /EXT1, /EXT2, and /EXT3 input signals and the /SO1, /SO2,
and /SO3 output signals.
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.
4.7 k
General-purpose
digital input 0
Forward Drive Prohibit input
(prohibited when OFF)
Digital input signal
power supply input
Battery for
absolute encoder
Backup battery
*2
2.8 V to 4.5 V
Reverse Drive Prohibit input
(prohibited when OFF)
Brake output
(released when ON)
Servo Alarm Output
(OFF for alarm)
*1
*4
*4
*4
Photocoupler outputs
Max. allowable voltage: 30 VDC
Max. allowable current: 50 mA DC
Encoder Divided
Pulse Output,
Phase A
Encoder Divided
Pulse Output,
Phase B
Encoder Divided
Pulse Output,
Phase C
Applicable line receiver:
SN75ALS175 or MC3486
manufactured by Texas
Instruments or the equivalent
SERVOPACK
Signal ground
External latch signal 1 input
(General-purpose input 4)
General-purpose
digital input 3
General-purpose
digital input 5
General-purpose
digital input 6
/BK+
/BK-
ALM+
ALM-
1
2
3
4
+24VIN
+24 V
*3
6
8
10
9
11
12
/SI0
P-OT
N-OT
/SI3
/EXT1
/EXT2
/EXT3
BAT+
BAT-
13
14
15
7
/SO2+
/SO2-
/SO3+
23
24
/SO3-
25
26
/SO4+
/SO4-
/SO5+
27
28
/SO5-
29
30
CN1
16
SG
PBO
PCO
/PBO
PAO
/PAO
/PCO
21
17
18
19
20
22
+
-
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