YASKAWA SERVO Manuel d'utilisateur Page 49

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4.2 I/O Signal Connections
4-11
4
Wiring and Connection
(2) Output Signals
Note: The allocation of /SO1, /SO2, and /SO3 can be changed to /ALO1, /ALO2, and /ALO3 by using PnB51. For details,
refer to 5.3.3 Servo Alarm Output Signal (ALM) and Alarm Code Output Signals (/ALO1, /ALO2, and /ALO3).
(3) CN11 Input Signals
Signal
Name
Pin No. Name Function
ALM+ 3
Servo Alarm Output
Servo Alarm:
Turns OFF when an error is detected.
ALM- 4
/WARN+
(/SO1+)
1
Warning Signal Output
Error/Warning:
ON for 2 seconds when an error has occurred.
ON continuously while a warning is being detected.
/WARN-
(/SO1-)
2
/BK+
(/SO2+)
23
Brake Signal Output
Brake interlock (controls the brake):
ON when the brake is released.
/BK-
(/SO2-)
24
/S-RDY+
(/SO3+)
25
Servo Ready Output
Servo Ready:
ON when the control and main circuit power supplies are
ON and a Servo Alarm has not occurred.
/S-RDY-
(/SO3-)
26
FG
Connector
Shell
Frame Ground
By connecting the shielded wire of the I/O signal cable to
the connector shell, it will be connected to the frame ground
(earth).
Ensure that the following condition does not last longer than 5 minutes. Otherwise the
product life may be shortened.
• The ambient temperature is high, and,
• There is a high ratio of CN11 input signal contacts that are ON (closed)
*1
(contact ON
ratio
*2
).
The allowable ranges for ambient temperature and contact ON ratio are shown below.
∗1. The state that a contact is ON (closed) indicates, regardless of the logic of the
input signal, that the contact is closed and that current is flowing in the input
circuit.
∗2. For example, a contact ON ratio of 100% indicates that 11 out of the 11 con-
tacts are ON.
0 1020304050
0
10
20
30
40
50
60
70
80
90
100
Ambient temperature and input signal contact ON ratio
Contact ON ratio [%]
Ambient temperature [
°
C]
If values in this range continue for
5 minutes or longer, the product
life may be shortened.
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