Yaskawa Sigma II Series Servo System - Manual (Page 168)

Sigma II User’s Manual Chapter 5: Parameter Settings and Functions
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5.5.8 Using the Near Output Signal (/NEAR)
The basic use and wiring procedures for the near (/NEAR) output signal
(photocoupler output signal) are described below. The signal is a sequence signal
that is generally output together with the positioning completed signal (/COIN), and
it is used to indicate the servomotor is close to completing operation.
Note: *CN1-1 and CN1-2 terminals are allocated using parameter Pn510.0.
The host controller can use the /NEAR signal to prepare the next motion sequence
before receiving the positioning completed signal. This reduces the time required to
complete the desired motion profile.
To use the /NEAR signal, an output terminal must be allocated with the parameter
below.
Pn510.0 is used to allocate the /NEAR output signals above.
Notes: *1 and *2 are output terminals allocated with parameter Pn 510.0.
Multiple signals allocated to the same output terminal follow Boolean OR logic. In order to use the /
WARN output signal alone, set other output signals to a value other than that allocated to the /WARN
signal. See 5.3.4 Output Circuit Signal Allocation.
Output /NEAR Near Output Signal Position Control
/NEAR
State
Status Result
ON Closed or low level.
The servomotor has nearly completed operation. (Posi-
tion error is below the near signal setting range.)
OFF Open or high level.
The servomotor is not close to completing operation.
(Position error is above the near signal setting range.)
Parameter Signal Setting Description
Pn510 Output Signal Selections 3 Default Setting: 0000 Position Control
Pn510.0
State
Output Terminal (CN1-)
1 2
0 — —
1 25 26
2 27 28
3 29 30
+24V 0V Servo amplifier
I/O power supply
CN1-1* /NEAR+
CN1-2* /NEAR-
Photocoupler output levels per output node:
• Maximum operating voltage: 30V
DC
• Maximum output current: 50mA
DC