10 Malfunctions
10.1 General
WARNING
Risk of injury from parts moving after a power failure or troubleshooting
The "pumping station" function of the electronic drive unit will remain active after a power failure or if
errors occur that shut down the vacuum pump or the system. When power is restored or after ac-
knowledging a fault, the vacuum pump runs up automatically. There is a risk of injury to fingers and
hands if they enter the operating range of rotating parts.
►
Always keep the mains connection freely accessible so you can disconnect it at any time.
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Remove present mating plugs or bridges from the electronic drive unit possibly before the mains
power returns, as these can cause an automatic run-up.
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Switch the pump off using the "Pumping station" function (parameter [P:010]).
Malfunctions of turbopump and electronic drive unit always result in a warning or error messages. In
both cases, you receive an error code that you can read out via the interfaces of the electronic drive
unit. Generally, the LEDs on the electronic drive unit show the operating messages. If an error occurs,
the turbo pump and connected devices switch off. The selected venting mode starts after a preset de-
lay.
10.2 Error codes
Errors (** Error E–––– **) always cause the connected peripheral devices to be switched off.
Warnings (* Warning F –––– *) do not cause components to be switched off.
Handling malfunction messages
1. Read out error codes via Pfeiffer display and control units or a PC.
2. Remove the cause of the malfunction.
3. Reset the malfunction message with parameter [P:009].
–
Use preconfigured quick keys with the symbol or display tiles on Pfeiffer Vacuum display
and control units.
Error
code
Problem Possible causes Remedy
Err001 Excess rotation
speed
● Device defective ● Contact Pfeiffer Vacuum Service
● Only acknowledge for rotational speed f = 0
Err002 Excess voltage ● Incorrect mains input voltage ● Check the mains input voltage
● Only acknowledge for rotational speed f = 0
● Contact Pfeiffer Vacuum Service
Err006 Run-up error ● Run-up time threshold set
too low
● Gas flow in recipients
through leaks or open valves
● Still below speed-control
switch point run-up time ex-
pires
● Adjust run-up time to process conditions
● Check vacuum chambers for leaks and closed
valves
● Check the fore-vacuum connection
● Adjust rotation speed switch point
Err007 Operating fluid low ● Operating fluid low ● Check operating fluid
● Acknowledge only at rotation speed f = 0,
and max. five times
● Contact Pfeiffer Vacuum Service
Err015 Group error ● Device defective ● Switch the electronic drive unit on/off
● Contact Pfeiffer Vacuum Service
Err021 Electronic drive unit
does not detect tur-
bopump
● Incorrect image impedance
● Device defective
● Check the connections
● Contact Pfeiffer Vacuum Service
● Only acknowledge for rotational speed f = 0
Err037 Defective motor end
stage or control
● Contact Pfeiffer Vacuum Service
Malfunctions
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