ProNet series AC servo system User’s manual V.1.08
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3.2.2 I/O Signal Names and Functions
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Input
Input
Input
Input Signals
Signals
Signals
Signals
Control
Control
Control
Control
Mode
Mode
Mode
Mode
Signal
Signal
Signal
Signal
Name
Name
Name
Name
Pin
Pin
Pin
Pin No
No
No
No....
Function
Function
Function
Function
Speed
Position
Torque
/S-ON
14
Servo ON: Turns the servomotor on.
/P-CON
15
Function selected by parameter.
Proportional
control reference
Switches the speed control loop from PI to P control when
ON.
Direction
reference
With the internally set speed selection: Switch the rotation
direction.
Control mode
switching
Enables control mode switching.
Zero-clamp
reference
Speed control with zero-clamp function: Reference speed is
zero when ON.
Reference pulse
block
Position control with reference pulse: Stops reference pulse
input when ON.
P-OT
N-OT
16
17
Forward run
prohibited
Reverse run
prohibited
Overtravel prohibited: Stops servomotor when ON.
/PCL
/NCL
41
42
Function selected by parameter.
Forward external
torque limit ON
Reverse external
torque limit ON
Current limit function enabled when ON.
Internal speed
switching
With the internally set speed selection: Switches the internal
speed settings.
/ALM-RST
39
Alarm reset: Releases the servo alarm state.
DICOM
13
Control power supply input for I/O signals: Provide the +24V DC power supply
Speed
VREF+
1
Speed reference input: ±10V.
VREF-
2
Position
PULS+
30
Pulse reference input mode
：
Sign + pulse string
CCW + CW pulse
Two-phase pulse (90º phase differential)
PULS-
31
SIGN+
32
SIGN-
33
PPI
34
Power supply input for open collector reference (2KΩ/0.5W resistor is built into
the servodrive).
/CLR
40
Positional error pulse clear input: Clears the positional error pulse during position
control.
Torque
T-REF+
26
Torque reference input: ±10V.
