4.5 I/O Signal Connections
4.5.1 I/O Signal Connector (CN1) Names and Functions
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4.5
I/O Signal Connections
4.5.1
I/O Signal Connector (CN1) Names and Functions
The following table gives the pin numbers, names, and functions the I/O signal pins for the
default settings.
Input Signals
Default settings are given in parentheses.
Control
Method
Signal
Pin
No.
Name
Function
Reference
Page
Any
Control
Method
/SI0
*
(/S-ON
)
40
General-purpose
Sequence Input 0
(Servo ON Input)
You can allocate the input signal to use with
a parameter.
(Controls turning the Servomotor ON and
OFF (supplying/not supplying power).)
/SI3
*
(/P-CON)
41
General-purpose
Sequence Input 3
(Proportional
Control Input)
You can allocate the input signal to use with
a parameter.
(Changes the speed control loop from PI
(proportional/integral) to P (proportional)
control when turned ON.)
/SI1
*
(P-OT)
42
General-purpose
Sequence Input 1
(Forward Drive
Prohibit Input)
You can allocate the input signals to use
with parameters.
(Stops Servomotor drive (to prevent over-
travel) when the moving part of the machine
exceeds the range of movement.)
/SI2
*
(N-OT)
43
General-purpose
Sequence Input 2
(Reverse Drive
Prohibit Input)
/SI5
*
(/P-CL)
45
General-purpose
Sequence Input 5
(Forward Exter-
nal Torque Limit
Input)
You can allocate the input signals to use
with parameters.
(Activates/deactivates external torque limit-
ing.)
/SI6
*
(/N-CL)
46
General-purpose
Sequence Input 6
(Reverse Exter-
nal Torque Limit
Input)
/SI4
*
(/ALM-
RST)
44
General-purpose
Sequence Input 4
(Alarm Reset
Input)
You can allocate the input signal to use with
a parameter. (Clears alarms.)
+24VIN
47
Sequence Input
Signal Power
Supply Input
Inputs the sequence input signal power
supply.
Allowable voltage range: 24 VDC
±
20%
The 24-VDC power supply is not provided
by Yaskawa.
−
SEN
4 (2)
Absolute Data
Request Input
(SEN)
Inputs the position data request signal for
an absolute encoder.
BAT+
21
Battery for abso-
lute encoder (+)
These are the pins to connect the absolute
encoder backup battery.
Do not connect these pins if you use the
Encoder Cable with a Battery Case.
−
BAT-
22
Battery for abso-
lute encoder (-)
TH
50
Linear Servomo-
tor Overheat Pro-
tection Input
Inputs the overheat protection signal from a
Linear Servomotor.
−
Speed
Control
V-REF
5 (6)
Speed Reference
Inputs the speed reference. Maximum input
voltage:
±
12 V