30
Malfunctions
9
Malfunctions
If malfunctions on the pump occur, you will find possible causes and instructions
for repair in the following table.
9.1 Rectifying malfunctions
1)
If no Pfeiffer Vacuum control panel is available, please contact Pfeiffer Vacuum Service
Problem
Possible causes
Remedy
Pump will not start up; none of the
built-in LEDs on the TC 600 lights up
•
Electrical supply interrupted
Ö
Check fuses in the power supply
Ö
Check plug contacts on the power supply
pack
Ö
Check supply lines of the power supply pack
Ö
Check output voltage (48 VDC) on the X2 of
the power supply pack
Ö
Check plug contacts on the power supply
pack
•
Operating voltage incorrect
Ö
Apply correct operating voltage
Ö
Observe name plate
•
No operating voltage applied
Ö
Supply the operating voltage
•
TC 600 defective
Ö
Exchange TC 600 .
Ö
Contact Pfeiffer Vacuum Service
Pump will not start up; green LED on
the TC 600 is flashing
•
Pin 1-3 and 1-4 on the remote plug not
connected
Ö
Connect Pin 1-3 and 1-4 on the remote plug
•
Voltage drop in the cable
Ö
Use a suitable cable
Pump does not attain the nominal rota-
tion speed within the specified starting
time
•
Backing pressure too high
Ö
Ensure function and suitability of the ba-
cking pump
•
Leak
Ö
Perform leak detection
Ö
Check gaskets and flange fasteners
Ö
Eliminate leaks
•
Gas load too high
Ö
Reduce process gas feed
•
Rotor runs hard, defective bearing
Ö
Check bearing for noise development
Ö
Contact Pfeiffer Vacuum Service
•
Starting time set too low
Ö
Extend starting time via DCU, HPU or PC
•
Thermal overload:
– Lack of cooling
– Backing pressure too high
– Ambient air temperature too high
Ö
Reduce thermal load
– Ensure adequate cooling
– Lower backing pressure
– Adjust ambient conditions
Pump not achieving the end pressure
•
Pump is dirty
Ö
Bake out pump
Ö
Cleaning in case of heavy contamination
– Contact Pfeiffer Vacuum Service
•
Vacuum chamber, pipes or pump leak
Ö
Leak detection starting from the vacuum
chamber
Ö
Eliminate leaks
Unusual noises during operation
•
Bearing damage
Ö
Contact Pfeiffer Vacuum Service
•
Rotor damaged
Ö
Contact Pfeiffer Vacuum Service
•
Splinter shield or protective screen
loose
Ö
Correct seat of the splinter shield or protec-
tive screen
Ö
Observe installation notes
Red LED on the TC 600 lights up
•
Common error
Ö
Reset through mains off/on switch
Ö
Reset via Pin 5 on the "REMOTE" connection
Ö
Differentiated malfunction display via DCU
or HPU possible
1)
Ö
Contact Pfeiffer Vacuum Service
Red LED on the TC 600 is flashing
•
Warning:
– Earthing of the supply voltage
– Power failure
Ö
Differentiated malfunction display via DCU
or HPU possible
1)
Ö
Check partial mains voltage
Ö
Check partial mains voltage for earthing
Ö
Check mains power supply to the power ad-
apter