Omron CJ1W-NC271 - 12-2009, Руководство по эксплуатации

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52
External I/O Circuits
Section 3-3
Control Input Circuit
Note (1) If the limit input signal inputs (Servo Drive's forward drive prohibited sig-
nal and reverse drive prohibited signal) are not allocated, the Servo Drive
will not stop the Servomotor when the signal is input, and the Position
Control Unit will also not detect limit inputs as errors. When using a Posi-
tion Control Unit, always allocate the Servo Drive's forward drive prohib-
ited signal and reverse drive prohibited signal to enable use of the limit
input signals. (Refer to
6-4 Standard Settings for Servo Drives Using
MECHATROLINK .)
(2) The signal width of the limit input signals (forward drive prohibited signal
and reverse drive prohibited signal) and origin proximity input signal (ori-
gin return deceleration limit switch) must be longer than the MECHA-
TROLINK communications cycle. If the input signal width is shorter than
the communications cycle, the Position Control Unit will be unable to de-
tect the input signal.
(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.
Control Output Signals
10 EXT1 External latch 1 input Input signal used for external interrupts.
Used as an external interrupt input signal during
interrupt feeding or an external origin input signal
during an origin search.
With the standard settings, the signal is enabled
when ON.
Position
11 EXT2 External latch 2 input
12 EXT3 External latch 3 input
13 --- Not used. This control input signal is not used with the standard
settings. ---
Pin No. Symbol Name Function/Interface Control mode
Servo Drive
Photocoupler input (24 VDC, 7 mA)
3.3 k
3.3 k
6
9
To other input circuits
+24VIN
Minimum ON time: 2 ms
To other input circuits GND common
•
Signal levels ON: Min. voltage (+24VIN
−
11 V)
OFF: Max. voltage (+24VIN
−
1 V)
External power supply
24
±
1 VDC
Power supply capacity
50 mA min. (per Unit)
Pin No. Symbol Name Function/Interface Control mode
1 BKIR
(SO1+) Brake interlock out-
put This is the holding brake timing signal that is output
according to the settings in parameters Pn506,
Pn507, and Pn508. All modes
2 BKIRCOM
(SO1
−
)
3 ALM Alarm output This output turns OFF when there is a Servo Drive
alarm. All modes
4 ALMCOM