Pfeifer Vacuum wrn100, Operating Instructions Manual

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The Pfeiffer Vacuum parameter set
19
Control via interface
 Configuration via parameters
[P:060]
and
[P:061]
.
Digital inputs on " X3 "
 Configuration via parameters
[P:062]
and
[P:063]
.
6.4 Operation with the Pfeiffer Vacuum parameter set
Factory settings
The electronic drive unit is pre-programmed in the factory. This guarantees proper, reli-
able turbopump operation without the need for additional configuration.
Checking the adjust-
ments
 Before operating with parameters, check set values and control commands for their
suitability for the pumping process.
Gas type dependent
operations
Friction causes the rotor to heat up severely under gas load and high rotation speed. To
avoid overheating, the electronic drive unit has implemented power-rotation speed-char-
acteristics, whereby the pump can be operated at every rotation speed with the maxi-
mum allowable gas load without danger of damage. The maximum power consumption
depends on the gas type. Three characteristics are available in order to completely ex-
haust the pump's capacity for each gas type.
● Gas mode "0" for gases with the molecular mass >39, e.g. argon.
● Gas mode "1" for gases with the molecular mass
≤
39.
● Gas mode "2" for helium.
● Power characteristics according to the technical data of the turbopump.
 Check and set-up the gas mode via
[P:027]
.
Option [P:060] Description
1 = remote Operation via connection "
remote
"
2 = RS-485 Operation via connection "
RS-485
"
4 = PV.can For service purposes only
8 = Field bus Operation via field bus
16 = E74 Operation via connection "
E74
"
Option [P:061] Description
0 = off Interface selection via [P:060]
1 = on Interface selection locked
Option Description
0 = deaktiviert Connection deactivated
1 = Enable venting Control is equal to parameter [P:012]
2 = Heating Control is equal to parameter [P:001]
3 = Sealing gas Control is equal to parameter [P:050]
4 = Run-up time control Control is equal to parameter [P:004]
5 = Rotation speed setting mode Control is equal to parameter [P:026]
6 = Motor Control is equal to parameter [P:023]
NOTICE
Danger of the pump being destroyed
Pumping of gases with a higher molecular mass in the wrong gas mode can lead to de-
struction of the pump.
 Ensure the gas mode is correctly set.
 Contact Pfeiffer Vacuum before using gases with a greater molecular mass (> 80).