Nederman L-PAK Serie Manual De Instrucciones página 21

idling and cooling do not function when there is no compressed air!
• Pilot signal cable installed (when the function automatic start/stop is
used).
• The terminals 13-14 in the start and control unit are strapped when the
system is not equipped with the automatic start/stop function i.e. the
pilot signal cable is not routed to workstations.
NOTE! The acoustic enclosure (accessory) should be removed during initial
start-up to check the direction of rotation. Check that there are no open
vacuum valves at the workplaces.
• Turn the switch-disconnector to position 1.
• Press the white push button marked
When the automatic start/stop function is not used the unit should start
directly, the white lamp lights.
When the unit has the automatic start/stop function enabled it should
not start directly except when the button for Manual start is pressed,
figure 7 or when a valve at a workstation is opened.
Check the direction of rotation with the arrow mark. If these correspond
then allow the starting procedure to continue. Otherwise stop the unit by
pressing the button
Isolate the power by using the switch-disconnector. Open the start and
control unit and change two of the incoming phase conductors. Check the
rotation again.
• Check that the unit, if it has automatic starting and stopping, does not
start immediately when the button marked
the push button should come on to indicate that the starter is now in
"Standby" mode and ready to receive the start signal from the pilot signal
cable. The unit should not start until you open a valve at a workplace, so
that the micro switch makes, or you press Manual start.
After approximately 30 seconds the unit switches to idling (and filter
cleaning). After 10 minutes the unit should stop.
If the unit starts without any valve being opened this is an indication that
the pilot signal cable is closed at some point. Disconnect the cable from
the starter and use an ohmmeter across the leads in turn until the fault
has been located and remedied.
• Press the Manual Filter Cleaning button, figure 7, and check whether the
filter cleaning procedure starts. The valve is hidden under the enclosure,
but a distinct change in sound reveals the function, this will be repeated 3
times for each filter cleaning cycle.
• With the pipe work fully sealed and all valves at workstations closed,
verify that the vacuum limiting valve opens and admits air to limit the
vacuum.
• Replace the cover on the start and control unit when all controls have
been carried out. Replace the acoustic enclosure over the motor/fan and
the top cover over the dust extractor.
• Switch off the unit at the end of the shift by pressing the white button
on the control panel (even when the unit has automatic start/stop) and
turning the switch-disconnector to 0.
L-PAK 150, L-PAK 250
on the control panel, figure 6.
.
is pressed. The lamp in
EN
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