3. Connector Functions
137
ML-5120A
Chapter 4 Laser Processing by External Input/ Output Signals (EXTERNAL CONTROL)
Introduction Part Operating Part Maintenance Part Appendixes
Installation and
Preparation Part
Pin No. Description
15
Laser output
While the laser is output, this pin is closed internally.
This is a signal for turning on an indicator during laser output. Do not use for timing con-
trol.
16
Laser weld monitor
This pin is dedicated to the laser weld monitor. Do not connect to other pins.
17
Monitor normal
When the monitor value of laser energy is in the range of "HIGH" and "LOW" set on the
MONITOR screen, the circuit is closed for the time set on the CONFIG screen.
18
Unused
Do not connect anything.
20
Monitor trouble
When the monitor value of laser energy is out of the range of "HIGH" and "LOW" set on
the MONITOR screen, the circuit is closed for the time set on the CONFIG screen. At
the same time, error No.035/LASER POWER OUT OF RANGE occurs.
21 Output COM
22
End
After the laser is output, this pin is closed internally for 20 ms.
23
External input receivable
When an external input signal is acceptable (when pin No.25 is closed), the circuit is
closed. In the open circuit status, an external input signal is not acceptable if it is input.
Type of output: Photo MOS relay output
Rating of output: 24 V DC, 20 mA max.
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