VACUUBRAND DCP 3000 - Manual (Page 42)

page 42 of 64
Configuring valves or digital I/O interfaces for operation
with setpoints
Reconfiguring the VACUU•BUS addresses of valves or digital I/O inter-
faces:
1. Switch the vacuum gauge DCP 3000 off.
2. Preferably connect only the component to be reconfigured to the DCP
3000.
3. Keep the ”VENT” key pressed and switch the DCP 3000 on (”ON/
OFF” key). Release the ”VENT” key.
4. Select the menu item ”Vacuubus” by turning and pressing the selec-
tion knob.
5. The first component detected by the VACUU•BUS is displayed (e.g.,
”Isol.v.1”). If necessary, select the component to be reconfigured by
turning and pressing the selection knob.
6. Press the ”VENT” key and keep pressed, then press additionally the
selection knob. A frame will replace the inverse display of the compo-
nent. Release the ”VENT” key.
7. Turn the selection knob until the address, to which you want to recon-
figure the component (e.g., ”SP 1” or ”SP 2”), is displayed.
8. Press the selection knob. If the configuration was successful, the menu
is left and the DCP 3000 will restart.
A configuration of more than one component to the same VACUU•BUS
address will result in error conditions at the DCP 3000 and must therefore
be avoided!
Further information concerning the configuration of other components
upon request.
”VSK 1”, a connected valve ”SP 1” opens. At pressures above 500 Torr,
the valve remains closed. If the ”Off” setpoint ”Off 1” is set to 70 Torr and
a pressure less than or equal to 70 Torr is measured by the correspond-
ing pressure transducer ”VSK 1”, a connected valve ”SP 1” closes. At
pressures above 70 Torr, the valve remains open.
A setpoint can be used e.g., to open an in-line valve between a backing
pump and a turbomolecular or diffusion pump once a specified backing
pressure has been reached.