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Operation
6 Operation
6.1 Commissioning
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.
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-
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 a Pfeiffer Vacuum control unit, or externally via RS-485
using Pfeiffer Vacuum protocol.
Parameter
[P:027]
[P:035]
[P:036]
[P:700]
[P:701]
[P:707]
[P:708]
[P:720]
[P:721]
Tbl. 8:
Notes for turbopump commissioning
1. When using water cooling, observe the cooling water flow and throughput.
2. When using sealing gas, observe the sealing gas flow and throughput.
3. Provide the current supply for the power supply pack.
30/54
WARNING
ues apply.
Name
Designation
GasMode
Gas mode
CfgAccA1
Accessory connection A1
CfgAccB1
Accessory connection B1
RUTimeSVal
Set value run-up time
SpdSwPt1
Rotation speed switch point 1
SpdSVal
Speed-control operation specification
PwrSVal
Set value power consumption
VentSpd
Venting at rotation speed, delayed venting
VentTime
Venting time, delayed venting
Factory setting of the electronic drive unit for turbopumps when delivered
NOTICE
NOTICE
Adjustment, setting
0 = heavy gases
0 = fan (continuous opera-
tion)
1 = venting valve
8 min.
80 %
65 %
100 %
50 %
3600 s
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