I/O Signal Names And Functions - YASKAWA MECHATROLINK Sigma 2 Series User Manual

3 Wiring

3.3.3 I/O Signal Names and Functions

3.3.3
Signal Name Pin No.
Common /DEC
P-OT
N-OT
/EXT1
/EXT2
/EXT3
+24VIN
BAT (+)
BAT (-)
Note: 1. The functions allocated to /DEC, P-OT, N-OT, /EXT1, /EXT2, /EXT3, P-CL, and N-CL
2. The forward/reverse run prohibited function uses software to stop the SERVOPACK. This
Signal Name Pin No.
Common ALM+
ALM-
/BK+
/BK-
/S-RDY+
/S-RDY-
ALO1
ALO2
39 (1)
ALO3
Shell
FG
Position /COIN+
/COIN-
Note: 1. Pin numbers in parenthesis () indicate signal grounds.
2. The functions allocated to /BK, /S-RDY, and /COIN output signals can be changed to

I/O Signal Names and Functions

The following section describes SERVOPACK I/O signal names and functions.
Input Signals
41
Zero point return deceleration limit switch: Deceleration LS used when the motor returns to the zero
point.
42
Forward run prohibited
43
Reverse run prohibited
44
External latch signals 1, 2, and 3: External signals for latching the current FB pulse counter.
45
46
47
Control power supply input for sequence signals: Users must provide the +24-V power supply.
Allowable voltage fluctuation range: 11 to 25 V
21
Connecting pin for the absolute encoder backup battery.
22
Connect to either CN8 or CN1.
input signals can be changed via parameters.
method may not satisfy the standards depending on the safety specifications for the
application. If necessary, add an external safety circuit.
Output Signals
31
Servo alarm: Turns OFF when an error is detected.
32
27
Brake interlock: Output that controls the brake. The brake is released when this signal is ON.
28
29
Servo ready: ON if there is no servo alarm when the control/main circuit power supply is turned
30
ON.
37
Alarm code output: Outputs 3-bit alarm codes.
38
Open-collector: 30 V and 20 mA rating maximum
Connected to frame ground if the shield wire of the I/O signal cable is connected to the connector
shell.
25
Positioning completed (output in Position Control Mode): Turns ON when the number of error
26
pulses reaches the value set. The setting is the number of error pulses set in reference units (input
pulse units defined by the electronic gear).
/CLT, /VCT, /TGON, /WARN, or /NEAR signals via parameters.
Function
Overtravel prohibited: Stops servomotor when movable part travels
beyond the allowable range of motion.
Function
3-8