40
Malfunctions
9
Malfunctions
9.1 General
Turbopump and electronic drive unit malfunctions always result in a warning or error
message. In both cases, the electronic drive unit outputs an error code. Operating mes-
sages are generally displayed via the LEDs on the electronic drive unit. If an error occurs,
the turbopump and connected devices will be switched off. The selected venting mode
will be triggered after the preset delay.
9.2 Operating mode display via LED
LEDs in the front panel of the electronic drive unit show basic operating conditions of the
turbopump. A differentiated malfunction and warning display is possible only for opera-
tion with DCU or HPU.
9.3 Error codes
WARNING
Automatic start-up after power failure or malfunction acknowledgement
The function "pumping station" of the electronic drive unit remains active after power
failure or errors that lead to shut down the pump or the system. The turbopump runs up
automatically after power ist restoresd or malfunction acknowledgement.
Switch off the function "pumping station" if necessary.
Provide safety measures against interference in the high vacuum flange while the tur-
bopump is running.
LED
Symbol Steady OFF
Flashing
(1/12 s active)
Blinking
(1/2 s active)
Steady ON
Green
insufficient
power supply
Pumping station "OFF"
Rotation speed
≤
1Hz
Pumping station "OFF"
Rotation speed > 1 Hz
Pumping station
"ON"
Yellow
no warning
Warning
Red
no malfunction
Malfunction
Error
code
Problem
Possible cause
Remedy
Err001 Excess rotation speed
Contact Pfeiffer Vacuum Service
Reset at rotation speed f = 0 only
Err002 Overvoltage
– Wrong mains pack used
Check type of mains pack
Check mains pack voltage
Err006 Run-up time error
– Run-up time too short
– Gas flow in the vacuum chamber
caused by leakage or open valves
– Rotation speed switchpoint is underrun
after run-up time is expired
Adjust run-up time to process
Check the vacuum chamber for leaks or
closed valves
Adjust rotation speed switch point
Err008 Connection electronic drive unit - pump
faulty
– Connection to the pump is faulty
Check the connection
Reset at rotation speed f = 0 only
Err010 Internal device fault
Contact Pfeiffer Vacuum Service
Reset at rotation speed f = 0 only
Err021 Electronic drive unit does not recognize
pump
Contact Pfeiffer Vacuum Service
Reset at rotation speed f = 0 only
Err041 Excess current motor
Contact Pfeiffer Vacuum Service
Err043 Internal configuration fault
Contact Pfeiffer Vacuum Service
Err044 Excess temperature electronic
– Cooling deficient
Optimize cooling
Check the ambient conditions
Err045 Excess temperature motor
– Cooling deficient
Optimize cooling
Check the ambient conditions
Summary of Contents for TM 700 DN
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