EPT076596 Issue 1 – March 2022
17
Installation
Remote Stop/Start feature
Is a mandatory feature that enables the extraction unit to be
remotely turned On / Off via an external signal. The voltage
required is detailed below.
- DC Voltage input – 24VDC
Note: Care must be taken to ensure that the system is
correctly wired in order for the extraction unit to function
correctly.
Extractor controlled by a Domino laser controller:
• Ensure the install option "vacuum" is activated
within the laser software (see Domino laser product
manual).
• Ensure that the controller software version is 4.2.2.4. or
newer.
Extractor controlled by PLC:
• Ensure that the extractor is operating before the
laser system is activated.
• Ensure the extractor is operating a certain time
(recommended 3 minutes) after the laser has been
set into standby.
• Monitor the System OK feedback signal (Pin 1) of
the extractor that it behaves as illustrated in the
signal-time-diagram below.
DC Voltage input
This configuration requires Pin 5 (+) and Pin 2 (-) of the
connector (Refer to section 1 for location) to be connected to a
known and tested DC power supply, of a laser controller or
PLC.
The operating voltage for this signal is between 12 & 24VDC.
Only voltages within this range should be connected. Voltages
connected outside of this range may cause irreversible damage
to the internal control PCB.
When the extractor is provided with the correct DC voltage the
motor will start and maintain the set flow rate (Refer to section
5 for how to set the flow) when the DC voltage is removed the
motor will slow down and come to a stop.
The extractor will need to be turned on and be out of standby
mode (See section 5 for turning the extractor on) in order for
this feature to operate.
The power supply unit which is used to provide the 12-24VDC
start stop voltage signal must be protected by double
insulation from mains voltage.
Filter warning & System Fail Signal
With this option the system will output a signal to alert the
user when the extractor has failed or when the filters are
blocked.
This feature will not directly stop the extractor from running
correctly, but if fitted this feature should be terminated
correctly before power is applied to the system.
Connection specification
System OK: Signal given between Pins 1 & 6.
Filters 85% blocked: Signal given between Pins 3 & 4.
The system will provide a volt free Open / Closed signal that
can be connected to an external interface, beacon or
warning device following the specification below.
• Maximum input voltage: 24V AC
• Maximum current load: 3A @ AC
OR
• Maximum input voltage: 24V DC
• Maximum input load: 3A @ DC
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