6 Operation
6.1 Commissioning
WARNING
Danger of cut injuries from unexpected start up.
The use of mating plugs of the electronic drive unit (accessories) enables the automatic run-up of the
vacuum pump as soon the power is turned on. Attaching mating plugs before or during the installa-
tion leads to the movement of parts hence the risk of cut injuries by sharp-edged in the exposed high
vacuum flange.
► Only connect mating plugs after the mechanical installation.
► Only switch on the vacuum pump immediately prior to operation.
CAUTION
Danger of burns on hot surfaces
Depending on the operating and ambient conditions, the surface temperature of the vacuum pump
can increase to above 70 °C. If access to the vacuum pump is unrestricted, there is a danger of burns
due to contact with hot surfaces.
► Install suitable touch protection if the vacuum pump is accessible to untrained persons.
► Allow the vacuum pump to cool down before carrying out any work.
► Contact Pfeiffer Vacuum for suitable touch protection in system solutions.
NOTICE
Vacuum pump destruction due to excessive energy input during operation
Simultaneous loading by means of high drive power (gas throughput, fore-vacuum pressure), high
heat radiation, or strong magnetic fields results in uncontrolled heating of the rotor and can destroy
the vacuum pump.
► Consult Pfeiffer Vacuum before combining varying loads on the vacuum pump. Lower limit val-
ues apply.
NOTICE
Turbopump destruction due to gases with too high molecular masses
The pumping of gases with impermissible high molecular masses leads to the destruction of the tur-
bopump.
► Make sure that the gas mode is set correctly by
[P:027]
in the electronic drive unit.
► Consult Pfeiffer Vacuum before you use gases with higher molecular masses (> 80).
Important settings and function-related variables are programmed ex factory as parameters in the vac-
uum pump electronic drive unit. Each parameter has a three-digit number and a description. Parameter-
driven operation and control is supported via Pfeiffer Vacuum displays and control units, or externally
via RS-485 using Pfeiffer Vacuum protocol.
Parameter Name
Designation
Setting
[P:027]
GasMode
Gas mode
0 = heavy gases
[P:035]
CfgAccA1
Accessory connection A1
0 = fan (continuous opera-
tion)
[P:036]
CfgAccB1
Accessory connection B1
1 = venting valve
[P:058]
TmpMgtMode Temperature management configuration
0 = pump housing temper-
ature ≤ 60 °C
[P:700]
RUTimeSVal
Set value run-up time
8 min.
[P:701]
SpdSwPt1
Rotation speed switch point 1
80 %
[P:707]
SpdSVal
Setpoint rotation speed setting mode
65 %
[P:708]
PwrSVal
Set value power consumption
100 %
Operation
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