YASKAWA SGM Series User Manual page 48

Configuration and Connections
4.4.2 1CN I/O Connector Terminals
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Signal 1CN pin No.
Name
ALM 3 (4)
/BK 1 (2)
Zero Point Return Deceleration LS (/DEC)
The motor decelerates from the zero point return feed speed to zero point return approach speed
1 (Cn−0022) when this signal level changes from high to low during the zero point return opera-
tion. When this signal level changes from low to high, the motor moves from the first phase C
pulse position to the position set by Cn−0028 (final travel distance) at zero point return approach
speed 2 (Cn−0023) . The motor then stops. Refer to the MECHATROLINK Servo Command
User's Manual for details.
The deceleration LS requires that the low (closed) interval be at least 4 ms. If the interval is too
short, reduce the feed speed.
/DEC
High Low
4 ms min.
External Latch Signal (/EXT)
The external latch signal is used as a latch input signal for latch command or external position
command. Refer to the MECHATROLINK Servo Command User's Manual for details.
Latching occurs at the falling edge when the signal level changes from high to low. Make sure
that the low signal level (closed) interval is at least 500 µs.
/EXT
High Low
500 µs min.
J Output Signals and Their Application
Table 4.7 Output Signals
Servo Alarm
Brake Interlock Output
Description
Turns OFF when an error is detected. Stays OFF until communica-
tion connection completes (CONNECT command) when the power
is ON.
See chapter 5.4.2 "Error Detection Function" for further details.
Outputs the timing signal for the holding brake signal.
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