Yaskawa Σ-V Series AC Servo Drives Rotational Motor Analog Voltage Reference - Manual (Page 43)

3 Wiring and Connection
3.2.1 I/O Signal (CN1) Names and Functions
3-8
3.2
I/O Signal Connections
This section describes the names and functions of I/O signals (CN1). Also connection examples by control
method are shown.
3.2.1 I/O Signal (CN1) Names and Functions
The following table shows the names and functions of I/O signals (CN1).
(1) Input Signals
Control
Method
Signal
Name
Pin No. Function
Refer-
ence
Section
Common
/S-ON 15 Servo ON/OFF: Turns ON/OFF the servomotor. 5.2.1
/P-CON 16
Proportional con-
trol reference
Switches the speed control loop from PI (propor-
tional/integral) to P (proportional) control when
ON.
6.9.3
Rotation Direc-
tion reference With internal set speed control selected: Switches
the servomotor rotation direction.
5.6.1
Control switch-
ing Switches control method between torque control
and speed control.
5.7.2
Zero-clamp refer-
ence With speed control with zero-clamp function
selected: Reference speed is zero when ON.
5.3.5
Reference pulse
block With position control with reference pulse stop
selected: Stops reference pulse input when ON.
5.4.8
P-OT
N-OT 17
18
Forward run
prohibited,
Reverse run
prohibited
With overtravel prevention: Stops servomotor
when movable part travels beyond the allowable
range of motion.
5.2.3
/P-CL 26
Forward external
torque limit
Activates/deactivates external torque limit func-
tion. 5.8.2
5.8.4
/N-CL 12
Reverse external
torque limit
Internal set speed
switching With internal set speed control selected: Switches
the internal set speed settings.
5.6.1
/ALM-RST 25 Alarm reset: Releases the servo alarm state. −
+24VIN 14
Control power supply input for sequence signals
Allowable voltage range: 11 to 25 V
Note: The 24 VDC power supply is not included.
3.4.2
/SEN
/SPD-D
/SPD-A
/SPD-B
/C-SEL
/ZCLAMP
/INHIBIT
/G-SEL
/PSEL
Can be
allocated
The following input signals can be changed to allocate functions:
/S-ON, /P-CON, P-OT, N-OT, /P-CL, /N-CL, and /ALM-RST.
3.3.1
5.3.5
5.4.3
5.4.8
5.6.1
5.7.1
6.8.1
Analog
Voltage
Reference
V-REF 1 (2) Inputs speed reference. Input voltage range: ± 12 V max.
5.3.1
5.5.4
T-REF 3 (4) Inputs torque reference. Input voltage range: ± 12 V max.
5.5.1
5.8.3
5.8.5