Important Additional Shutter Information - Domino F Series Product Manual

Important additional Shutter Information

• X69 EXT_LSTART_IN must be used as this is the ONLY way to enable
the shutter. Furthermore enabling the shutter is a precaution for
switching on the laser. The laser might be switched on either
automatically or later on.
• Once the laser is started (i.e. laser PSU switched on) it is not intended
(thus NOT possible) to switch off the laser by opening the guard. The
laser can be switched off:
- by turning the key switch at the BCP7 controller to the disable
position
- remotely by software
- by switching off the rocker mains switch.
This is a significant difference to systems without shutter, where
opening of the guard door will always power down the laser PSU.
Opening of the guard door on a system with shutter will close the
shutter and suppress laser modulation. During the shutter test phase
(after first shutter enabling) the laser PSU is not yet switched on.
• The door lock output may be used to drive a door locking device. Note
that the door lock output is NOT declared as a safety output.
• The customer should wire the lock feedback into the safety circuit to
improve safety.
• The X69 start input is internally working in parallel to the other (X4 and
X59) laser start Inputs. Use this input for laser start if the system is
equipped with an optional shutter. Thus, applying of constant voltage
at this pin will suppress command edges coming from the other Laser
Start Inputs. This is especially important if the static shutter mode is
used, when maybe a switch is installed and switched on to open the
shutter: as long as the switch is on it is not possible to start the laser
via X4, X59 or even the key switch.
It is recommended to insert a start pulse with duration of 2-3 sec. In case of
need, shutter and/or laser may be re-started with a new pulse, for example
if an error with the shutter or the safety loops occurred.
Note that the shutter controlling system will automatically start the laser
after the shutter is enabled.
EPT009665 Issue 2 May 2015
OPERATION
3-15