4.5 I/O Signal Connections
4.5.1 I/O Signal Connector (CN1) Names and Functions
4-33
4
Wiring and Connecting SERVOPACKs
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).)
page 5-17
/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.)
page 8-74
/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.)
page 5-32
/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.)
page 6-63
/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.)
page 12-40
+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.
page 6-72
page 6-86
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
page 6-12
Continued on next page.