8 Operation
8.1 Commissioning the vacuum pump
WARNING
Danger of poisoning due to toxic process media escaping from the exhaust pipe
During operation with no exhaust line, the vacuum pump allows exhaust gases and vapors to escape
freely into the air. There is a risk of injury and fatality due to poisoning in processes with toxic process
media.
► Observe the pertinent regulations for handling toxic process media.
► Safely purge toxic process media via an exhaust line.
► Use appropriate filter equipment to separate toxic process media.
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.
Before switching on
1. Check the lubricant levels on both sight glasses.
2. Make sure that the suction chamber is free from all foreign matters;
– Protect the vacuum pump from sucking in contaminants using suitable measures (e.g. dust
filter).
3. Check the vacuum pump for visible damage and put the vacuum pump into operation only in a
correct state.
4. Make sure that the shut-off units on the pressure side open before starting the pump.
8.2 Switching on the vacuum pump
The "Pumping station" parameter
[P:010]
comprises operation of the vacuum pump with control of all
connected interfaces and configurations.
Procedure
After successfully completing the self-test, the electronic drive unit resets pending and corrected error
messages.
You can switch on the vacuum pump in every pressure range, between atmospheric pressure and ulti-
mate pressure.
1. Switch the voltage supply on.
2. Switch the vacuum pump on by pressing the
button once.
3. Allow the vacuum pump to warm up prior to process start, with the vacuum flange closed, for ap-
prox. 30 minutes.
Alternative: Switch on via the Pfeiffer Vacuum parameter
► Set the parameter
[P:010]
to the value "1".
8.3 Configuring the connections with the Pfeiffer Vacuum parameter set
The electronic drive unit is pre-configured with the factory default basic functions and is ready for opera-
tion. For individual requirements, you can configure most connections for the electronic drive unit with
the parameter set.
Configure the digital outputs
► Perform the configuration as per the following table:
Operation
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