YASKAWA S Series User Manual page 66

■ Output Signals and Their Application
Signal 1CN pin No.
Name
3 (4)
ALM
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 the signal level changes from high to low during the zero point return opera-
tion. When this signal level goes 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) . Then, the motor stops. Refer to the MECHATROLINK Servo Command 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 positioning
command. Refer to the MECHATROLINK Servo Command 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 gs.
EXT H i g h
Low
500 [its min.
Table 4.7 O u t p u t Signals
Servo Alarm
Brake Interlock Output
4.4 Connecting an Incremental Encoder
Description
Turns OFF when an error is detected. Stays OFF until communica-
tion connection completes (CONNECT command) when the power
is ON.
See 5.4.2 "Error Detection Function" for further details.
Outputs the timing signal for the holding brake signal.
4 -13