Yaskawa Σ-V Series AC Servo Drives Rotational Motor MECHATROLINK-III - Manual (Page 45)

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
Note 1. The functions allocated to /DEC, P-OT, and N-OT input signals can be changed by using the parameters. For
details, refer to 3.3.1 Input Signal Allocations .
2. To use /EXT1, allocate it to CN1-7. For details, refer to 3.3.1 Input Signal Allocations .
3. If the Forward run prohibited/ Reverse run prohibited function is used, the SERVOPACK is stopped by software
controls, not by electrical or mechanical means. If the application does not satisfy the safety requirements, add an
external circuit for safety reasons as required.
(2) Output Signals
Note: The functions allocated to /SO1 to /SO3 output signals can be changed by using the parameters. For details, refer to
3.3.2 Output Signal Allocations.
Signal Pin No. Name Function
Refer-
ence
Section
/DEC 7
Homing deceleration
switch signal
Connects the deceleration limit switch for homing. −
P-OT
N-OT 3
8
Forward run
prohibited,
Reverse run
prohibited
With overtravel prevention: Stops servomotor when movable
part travels beyond the allowable range of motion.
4.3.1
/EXT 1
Can be
allocated
External latch signal 1
Connects the external signals that latch the current feedback
pulse counter.
Note: To use this signal, allocate it to CN1-7.
−
+24VIN 2
Control power supply
for sequence signal
Control power supply input for sequence signals
Allowable voltage fluctuation range: 11 to 25 V
Note: The 24 VDC power supply is not included.
3.4.1
Signal Pin No. Name Function
Refer-
ence
Section
ALM 4
Servo alarm output
signal
Turns OFF when an error is detected. −
/BK
(/SO1)
11 Brake interlock signal
Controls the brake. The brake is released when the signal
turns ON.
Allocation can be changed to general-purpose output signals
(/SO1).
4.3.2
/SO2
/SO3 10
9 General-purpose
output signal Used for general-purpose output.
Note: Set the parameter to allocate a function.
−
/COIN
/V-CMP
/TGON
/S-RDY
/CLT
/VLT
/WARN
/NEAR
Can be
allocated
Positioning comple-
tion
Speed coincidence
detection
Rotation detection
Servo ready
Torque limit
Speed limit detection
Warning
Near
The allocation of an output signal to a pin can be changed in
accordance with the function required.
−
COM_SG 5
Common output
ground Common output ground for the output signals (/SO1 to /
SO3).
−
FG 1 Frame ground Connects the shielded wire from the I/O signal cable. −