Omron CJ1W-NC271 - 12-2009, Operation Manual

Page: 78 / 687

50
External I/O Circuits
Section 3-3
(3) When selecting a sensor for the origin proximity input signal (origin return
deceleration LS), use a sensor such as a Photoelectric Sensor, which
does not have chattering, because the origin signal is detected after the
input goes from ON to OFF during the origin search. If a switch with con-
tacts is used, the origin position may shift due to the switch contact's chat-
tering.
CN1 Control Output Signals
Control Output Circuit
Note The circuit is equipped with an auto-resetting circuit breaker to protect the out-
put. Even if an overcurrent trips the breaker, the breaker will reset automati-
cally after a certain time elapses with no current. (Ver. 37 and later Servo
Drives are equipped with the auto-resetting circuit breakers.)
3-3-5 W-series Servo Drive I/O Signals (R88D-WN
@
-ML2 with
MECHATROLINK-II Built-in Communications)
This section explains the I/O signals used between the PCU and a W-series
Servo Drive equipped with built-in MECHATROLINK-II communications.
Use the OMNUC W Series User's Manual (Cat. No. I544) together with this
manual for information on I/O signals.
Terminal Arrangement of the Control I/O Connector (CN1)
When using W-series Servo Drives equipped with built-in MECHATROLINK-II
communications, the default control I/O signal allocations are the standard
Servo Drive settings for using MECHATROLINK.
The following diagram shows the terminal arrangement of the W-series Servo
Drive's Control I/O Connector (CN1) when MECHATROLINK is being used
with the Servo Drive's default settings.
This diagram shows only the I/O signals used when connecting to the PCU.
Pin no. Signal Name Function/Interface Control
mode
25 INP1 Positioning completed
output 1 The position deviation is less than positioning comple-
tion range 1 (Pn500). (This signal is always OFF in con-
trol modes other than position control mode.) Position
26 INP1COM
27 BKIR Brake interlock output This is the holding brake timing signal that is output
according to the settings in parameters Pn506, Pn507,
and Pn508. All modes
28 BKIRCOM
29 READY Servo ready output Turned ON if there are no errors after the control and
main circuit power supplies are turned ON. All modes
30 READYCOM
31 ALM Alarm output This output turns OFF when there is a Servo Drive
alarm. All modes
32 ALMCOM
Shell FG Frame ground Use this terminal to connect the cable's shield and FG
wire. All modes
Servo Drive
To other output circuit
X
Di
+
−
See note.
Di: Diode providing surge-voltage protection (Use a high-speed diode.)
External power
supply
24
±
1 VDC
Voltage: 30 VDC max.
Output current: 50 mA max.