13
77
75
76
79
80
81
78
71
73
74
72
Fig. 15: Rear of automatic switch
5.2
Automatic Switch AP500
Fit the AP500 switch module under
the bench near to your grinder hand-
piece controller in such a way that
you can operate the input module
from an accessible position. The
input module is necessary for
matching to your grinder once and
for setting the desired run-on time
(see page 14 onwards). If you
change the grinding system or the
knee/foot controls for your handpiece,
you will have to readjust.
Fig. 14: Front of automatic switch
The automatic switch is responsible for
detecting an actuated grinder handpiece
and opening the suction unit. If the knee
starter (52) is actuated, the control unit
(51) rotates and admits more current.
This is detected by the automatic switch,
which opens the suction unit valve (46)
by operating the switching valve (48). If
the grinder handpiece is switched off, the
suction unit remains open for about
another 3 seconds (run-on time) in order
to draw in any residual dust. If you are
working without a grinder handpiece, the
extraction system can be switched on at
an external switch (53) (optional), which
can be fitted underneath the bench top
within reach.
5.2.1
Front Connections
1. Connect the valve in the suction hose
to the small swivelling 6 mm connector
on the AP 500.
2. Check the compressed-air supply,
which must be reduced to 1 bar for
connecting the suction unit opener. For
this purpose use the preset pressure-
reducing valve from Zubler, DM01,
ordering code 825/297.
3. Connect the compressed-air supply
(8 mm connector) on the AP500 to
your laboratory compressed-air supply
via the pressure-reducing valve. Before
doing so, check to make sure there is
an 8 mm blind plug on one side of the
connector on the module, or proceed
by connecting to the next module.
4. Plug the AP500 into a socket using the
power cable enclosed.
71 Socket for handpiece controller unit
72 Socket for input modul
73 Socket for direct connection
(handpiece controller unit)
74 Socket for switching cable Manual
ON/OF
75 Valve control socket 6mm
76 Elektromagnetic valve
77 Compressed air 1 bar Socket 8mm
78 Network socket (only for FZ2)
79 Mains input
80 Fuse
81 Silencer (pneumatic)
Page
5. Insert the mains plug of your grinding
system into the socket on the AP 500
control module.
6. (Optional) Connect the additional
switching cables (see section
"Accessories").