Nederman High Vacuum Starter Manual De Instrucciones página 16

EN High Vacuum Starter, Advanced
40–41 All dust collectors, except cyclones, have automatic filter cleaning controlled
44–45 Filter cleaning can be executed manually by an optional push button (closing
46–47 The FlexFilter can be fitted with a fire sensor. This can be wired directly to
48–49 A differential pressure switch (DPS) can be fitted to the FlexFilter giving a
50–51 Automatic Emptying following the TWFD technique use these terminals for
52–53 AEB emptying use these terminals for the emptying signal. TVFD emptying use
54–55 Emptying can be executed manually by an optional push button (closing when
56–58 The FlexFilter dust bin can be fitted with a Level Indicator (LI) giving a
60–61 "Warning terminals". Certain functions, such as a full dust bin, cause a warning.
62–64 A Summary Alarm is an alarm which can be caused by a number of different
65–66 An auxiliary IN-terminal (AUX) is available for additional options. An
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from terminals 40–41. 42–43 RF filter cleaning use these terminals in addition to
40–41.
when activated) at the dust collector. After pushing the button the PLC performs
cleaning as programmed. This extra button is required only if the dust collector is
installed far away from the starter. Otherwise, manual filter cleaning is released
by pushing a button on the starter display.
the starter stopping the unit in case of fire. Alternatively, it can be wired to a
control room computer, which stops the unit. Both functions lead to an alarm and
immediate stopping of the unit.
warning should the pressure drop become too high across the filter. Stops the
vacuum unit after a certain delay, if so programmed. (See PLC settings, menu 7
in Chapter '12 PLC settings'.)
closing the upper valve. Not used for emptying following the AEB technique.
terminals 52–53, in addition to terminals 50–51, for opening the lower valve.
activated) located at the dust collector. Press and release the button. The PLC then
performs emptying as programmed. (Manual emptying can not be executed from
the starter display.)
warning when the bin is full. Stops the vacuum unit after a certain delay, if so
programmed. See "Settings", menu 8 in Chapter '12 PLC settings'.
Terminals 60–61 provide a "non-potential closing function" which can be used
for an acoustic or visual warning signal. Maximum load is 6A resistive or 1A
inductive. Normally, after a warning has been active for a certain time, without
any action taken, the unit will stop. The stop delay can be set individually for
each kind of fault.
faults, all causing the vacuum unit to stop. The PLC display shows what fault
has occurred. Terminals 62–63–64 provide a "non-potential switching function"
which can be used for a remote alarm, for instance in a control room. Terminals
62–63 provide an opening function and terminals 62–64 provide a closing
function on alarm. Maximum load is 6A resistive or 1A inductive.
example is the Control Filter, often installed with RBU units. The control filter
prevents the Roots pump from damage caused by dust collector failure. Too
high a pressure drop across the control filter causes a warning, followed by
vacuum unit stopping, if so programmed in the PLC. See "Settings" menu 9 in
Chapter '12 PLC settings'.