Operation
3.3 Bake-out of the
TURBOVAC
Bake-out is only necessary when the pump is to attain
especially low pressures. Water cooling is required for
the bake-out sequence.
Pressing the HEATING key switches the flange heater
ON and OFF. The green LED in the key lights up when
the heating is ON.
With preselection the LED flashes during the accelerati-
on phase; during NORMAL and activated heating the
LED lights continuously.
3.4 Operation
During NORMAL operation, the LED NORMAL lights and
the LED chain shows - starting at the bottom and moving
upwards - the current consumed.
If the target speed of the TURBOVAC cannot be main-
tained during normal operation due to overloading (pres-
sure, excessive TURBOVAC or TURBOTRONIK tempe-
rature), the TURBOTRONIK will switch to the OVERLO-
AD mode.
In this mode, the LED OVERLOAD lights up and the LED
NORMAL flashes.
The LED chain shows the corresponding speed.
The OVERLOAD mode is not a failure, but can result in
a shut down depending on the cause of overload, e.g. if
the temperature continues to rise.
3.5 Shut-down of the
TURBOVAC
Pressing the STOP key switches off the pump drive.
The forevacuum pump will be switched off provided it is
connected via (3/2); the heating will be switched off pro-
vided it is connected via (3/9); the TURBOVAC will be
vented if the venting valve is connected via (3/11).
The LED in the STOP key lights up, the LED NORMAL-
goes off. The TURBOVAC runs down until it stands still.
If a mulfunction “FAILURE” occurs the malfunction signal
can be reset via the STOP key provided the cause of
malfunction has been eliminated.
3.6 Venting of the
TURBOVAC
Vent the TURBOVAC every time the TURBOVAC is swit-
ched off in order to prevent a potential backstreaming of
oil vapors from the forevacuum line to the high-vacuum
side.
If a power failure airing valve or a delayed venting devi-
ce is connected to the socket (3/11) VALVE the TUR-
BOTRONIK controls venting automatically.
3.7 Shutdown of the
TURBOTRONIK
Press the STOP key.
The LEDs in the keys START, STOP and NORMAL are
extinguished.
Switch the power switch (3/1) to the “0” position.
3.8 Maintenance
The converter essentially requires no servicing since it
contains no components which could be adjusted.
Depending on the installation particulars and the
ambient conditions, the converter may collect grime
(dust, moisture) on the inside. Such contamination can
lead to malfunctions, overheating or short circuits and
will have to be avoided to the maximum extent possible.
The LEYBOLD Service Department can clean the con-
verter. We recommend adhering to a cleaning interval of
about three years.
Warning
Only qualified personnel or the Leybold
Service Department may carry out work on
the converter.
Potentially fatal voltages are present inside
the converter.
The unit shall be disconnected from the
power supply before commencing any work
where the converter housing will be
opened.
The converter contains components which
could be damaged by electrostatic dischar-
ges.
26
GA 05.208/12 - 05/2003
