9 Malfunctions
9.1 General
Malfunctions on the pumping station are usually caused by faults on individual components. LEDs on
the turbo pump and backing pump indicate the operating conditions for the corresponding device.
● The DCU display and control unit displays basic operating conditions of the pumping station
chapter “Operating mode display via LED”, page 33)
.
● Operational faults are indicated by the DCU with an output of an error code on the display.
9.2 Troubleshooting
Problem
Possible causes
Remedy
Pumping station will not start
up. None of the LEDs on the
DCU is lit.
● Electrical supply
interrupted
1. Check the supply lines to the pumping station.
2. Check the 24 V DC output voltage on the "DC out" connec-
tion of the integrated power supply.
3. Check the plug-in contacts on the power supply.
4. Check the connection cable between the power supply,
backing pump and turbopump.
● Incorrect operat-
ing voltage
1. Observe the specifications on the rating plate.
2. Apply the correct operating voltage.
● No operating volt-
age applied
1. Apply the operating voltage
● Electronic drive
unit defective
1. Replace the electronic drive unit according to the operating
instructions for the turbopump.
2. Inform Pfeiffer Vacuum Service.
Pump not achieving the re-
quired final pressure.
● Condensate in
the backing pump
1.
Only with MVP 0152:
Open the gas ballast valve on the
(see chapter “Operation with gas bal-
● Gas ballast valve
open
1.
Only with MVP 0152:
Close the gas ballast valve on the
(see chapter “Operation with gas bal-
9.3 Error codes
Error (** Error E––– **) always result in the shutdown of the connected peripheral devices.
Warnings (* Warning F––– *) are only displayed and do not result in the shutdown of components.
Handling of error messages on the HiCube Eco
1. First eliminate the cause of the error.
2.
Reset the error message by pressing the
key.
Display Problem
Possible causes
Remedy
E040
Hardware fault
● External RAM faulty
● Contact Pfeiffer Vacuum Service.
E042
Hardware fault
● EPROM checksum
● Contact Pfeiffer Vacuum Service.
E043
Hardware fault
● E
2
PROM write error
● Contact Pfeiffer Vacuum Service.
E090 **
Internal device er-
ror
● RAM insufficient
● DCU is connected to the wrong pump
electronics
● Contact Pfeiffer Vacuum Service.
● Connect the correct pump electronics
Malfunctions
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