Amada ML-2350A-CE, Operation Manual, Page: 139 / 235

3. Connector Functions
139
ML-2350A/2351A
Chapter 4 Laser W
elding by External Input/ Output Signals (EXTERNAL
CONTROL)
Introduction Part
Operating Part
Maintenance Part
Appendixes
Installation
and
Preparation
Part
Output Pins of EXT.I/O (4) Connector
Pin No. Description
9
Emergency stop output 1
When the laser is put in an emergency stop, the section between pin No.9 and pin
No.12 is put in an open circuit.
12
10
Emergency stop output 2
When the laser is put in an emergency stop, the section between pin No.10 and pin
No.11 is put in an open circuit.
11
⇒
For simple systems, do not connect anything to pins not described above.
Proper integration of the Laser with external equipment is required for compliance
with applicable safety regulations. The wiring diagrams in this section show typical
implementations. Failure to select and implement a correct method of wiring can
render the Laser unsafe.
CAUTION
ALL CONNECTIONS ARE POTENTIAL FREE DRY CONTACT CLOSURE ONLY.
Do not apply any voltage or current or you will damage the system.
Interlocks
The laser interlock mechanism is used to render the Laser safe for material handling
without shutting down the laser itself. One example would be a door in a laser safety
enclosure that must open for part loading and unloading. When the interlock channels
are opened laser emission will cease and the laser safety shutter will close. If a laser
weld operation is in process the Laser will be put into a fault condition that must be
cleared before processing can start again. This interlock is designed to be connected
to a laser enclosure safety door or any other device designed to protect personnel
from laser radiation. A properly designed enclosure meeting the specifications of
IEC60825-1 is a requirement, and the Laser will comply with IEC60825-1 when
correctly installed and wired in a compliant enclosure.
The laser interlock consists of two dry contact inputs. These must be opened and
closed simultaneously or a fault will occur. There is no external reset required
meaning that the interlock control circuit will allow laser operation as soon as the
interlocks are closed.
Emergency Stop for Simple Systems
Interfacing with External Emergency Stop Circuitry
E-STOP button(s) ONLY
The Laser can be interfaced to a simple system including an enclosure and one
or more external emergency stop buttons. In this situation the Laser would not be
connected to any larger automation system or control any other equipment. The dual
channel output relays can be monitored to verify the status of the emergency stop
circuit but no external equipment other than that outlined above should be included.
Reset can be performed via the EXT. I/O (1) connector.
Also, dual channel relay outputs are available.