4.5 I/O Signal Connections
4.5.1 I/O Signal Connector (CN1)
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4.5
I/O Signal Connections
4.5.1
I/O Signal Connector (CN1)
This section describes the I/O signals of the SERVOPACK.
Names and Functions
The following table gives the pin numbers, names, and functions of the I/O signal pins.
Input Signals
Note: If forward drive prohibition or reverse drive prohibition is used, the SERVOPACK is stopped by software con-
trols. If the application does not satisfy the safety requirements, add external safety circuits as required.
Output Signals
Default settings are given in parentheses.
You cannot change the pin allocations for the input signals on CN1.
Signal
Pin No.
Name
Function
Reference
/ALM-RST
7
Alarm Reset Input
−
P-OT
8
Forward Drive Prohibit
Input
Stops Servomotor drive (to prevent over-
travel) when the moving part of the
machine exceeds the range of movement.
N-OT
9
Reverse Drive Prohibit
Input
/DEC
10
Homing Deceleration
Switch Input
Connects the deceleration limit switch for
homing.
Not used
11
−
−
−
/RGRT
12
Registration Input
Inputs the latch signal that is used for reg-
istration (external positioning).
/S-ON
13
Servo ON Input
Controls turning the Servomotor ON and
OFF (supplying/not supplying power).
+24VIN
6
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.
−
BAT+
14
Battery for Absolute
Encoder (+)
These are the pins to connect the abso-
lute encoder backup battery.
Do not connect these pins if you use the
Encoder Cable with a Battery Case.
−
BAT-
15
Battery for Absolute
Encoder (-)
TH
5
Overheat Protection
Input
Inputs the overheat protection signal from
a Linear Servomotor or from a sensor
attached to the machine.
Signal
Pin No.
Name
Function
Reference
ALM+
3
Servo Alarm Output
Turns OFF (opens) when an error is detected.
ALM-
4
/SO1+
(/WARN+)
1
Warning Output
You can allocate the output signal to use with
a parameter.
(Error/Warning:
ON for 2 seconds when an error has occurred.
/WARN- ON continuously while a warning is
being detected.)
/SO1-
(/WARN-)
2
Continued on next page.
Note