Installation; Pneumatic Connection; Supply And Setting Of Aeb; Setting, High Vacuum Starter - Nederman AEB Manual De Instrucciones

GB
to the vacuum unit. The remaining vacuum in the dust
collector does not allow cylinder (e) to open the hatch
before cylinder (f) has opened the valve disc (h) for fil-
ter cleaning, which means air at atmospheric pressure
enters the collector. When the vacuum in the collector is
eliminated the cylinder (e) can open for emptying.
The equipment returns to normal mode after a few
seconds. It has no significance in which order the cylin-
ders are activated.
If the dust collector has an RF function, filtering and
emptying must not be performed at the same time. The
effective filter cleaning that the RF principle represents
would be lost. High Vacuum Starter (HVS) Advanced
regulates filter cleaning and emptying. The diagram in
fig. 6 shows the function Single RF and fig. 8 the func-
tion of Twin RF. (The actual RF principle for filter clea-
ning is discussed in the dust collector's manual.) The
function when emptying is as set out in the description
above, but a shuttle valve has been added. The shuttle
valve makes it possible to activate cylinder C with two
different signals. The air signal on port 3 is active with
filter cleaning while the air signal on port  is active
when emptying. In both cases the signal comes out on
port 2 and goes to C on the "A-side" (or collector "A").

Installation

Pneumatic connection

AEB is supplied with four plugged "push-in nipples",
named 0--2-3 in fig. 4. Some of these plugs need
to be removed, depending on the type of dust collector,
and the supplied 6 mm nylon hoses are to be connected
for regulating the pneumatics that handle filter cleaning.
Use the pneumatic diagrams in fig. 5-8 and  that cor-
responds with the collector in question to determine
which plugs shall be removed or remain in place. The
same numbers, 0--2-3, are used in each diagram.
Note that the compressed air supply up to the AEB must
not be too small and restrict the air flow. The nipple is
suitable for hoses with an 8 mm (5/6") diameter. The
instantaneous consumption of compressed air when
emptying is quite large, but as emptying is rarely perfor-
med the average consumption is very small. A small -
phase compressor can be used if there is not a central
compressed air system. The air supply must be clean
and dry.
4
AEB

Supply and setting of AEB

AEB is regulated from High Vacuum Starter (HVS)
Advanced or Basic series or from FlexPAK's own con-
troller. For connections, see each manual. AEB is nor-
mally connected for 24 V DC and the solenoid valve on
the emptying equipment is supplied for this voltage.

Setting, High Vacuum starter

Ton which is the emptying time and Toff which is the
time between emptying. Ton is normally set to 5 s.
Longer times mean that the installation's suction capa-
city is taken away for an unnecessary long period. Toff
should normally be set to 2 hours, but can be set to a
shorter time. As emptying trips an extra filter cleaning
cycle, the wear increases on the filter hoses if the time
for Toff is set too low. Times shorter than 30 min should
be avoided. For instructions how Ton and Toff times are
adjusted, see the starter manual High Vacuum Starter
series.

Setting, FlexPAK

The following parameter settings should be made on
the unit's PLC to use AEB with FlexPAK. Refer to the
FlexPAK manual for detailed instructions about adjust-
ment and settings on the PLC.
Activate the AEB function as follows:
Change the parameter "EmtyTime".
TH from 00.00s to 0.00s.
TL is the time between emptying in hours.
EmtyTme
TH = 00:00s
TL = 02:00h
TA = 00:00
ESC
To change the time that AEB is open adjust the parame-
ter "AebOpnTm".
TH from 5.00s to the required time.
AebOpnTm
TH = 05:00s
TL = 00:00s
TA = 00:00
ESC
Installation on an existing dust collector
Conversion of an existing FlexFilter dust collector to
automatic emptying is possible.
Before starting the conversion, please contact
Nederman Technical Support for information!
OK
PLCAEB
OK
PLCAEB2