Pfeiffer MVP 015-4 DC, Operating Instructions Manual

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Problem Possible causes Remedy
Pumping speed of vacuum
pump too low
● The intake line is not
suitably dimensioned
● Make sure that connections are
short and cross sections ade-
quately dimensioned.
● Exhaust pressure too
high
● Check exhaust line outlet open-
ing and exhaust side accesso-
ries.
Unusual noises during opera-
tion
● Defective valves or dia-
phragms
● If necessary, clean or replace the
valves and diaphragms.
● Soiled suction chamber ● Clean suction chamber.
● The silencer is loose or
missing
● If necessary, check or replace
the silencer.
● Valves dirty or defective ● If necessary, clean or replace the
valves and diaphragms.
● Connection rod or motor
bearing defective
● Contact Pfeiffer Vacuum Service .
Tbl. 18: Troubleshooting on diaphragm pumps
12.2 Error codes
Errors (** Error E–––– **) always cause the vacuum pump to be switched off.
Warnings (* Warning F –––– *) do not cause the vacuum pump to be switched off.
Handle 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
Err042 Inconsistent software Checksum errors ● Contact Pfeiffer Vacuum Service .
Err091 Unknown hardware - ● Contact Pfeiffer Vacuum Service.
Err098 Internal communication error between interface
board and drive
– ● Contact Pfeiffer Vacuum Service.
Err117 Vacuum pump excess temperature (> 85 °C) Insufficient cooling ● Improve the cooling
● Check the operating conditions
Err173 Pump overflow - ● Contact Pfeiffer Vacuum Service.
Err174 Vacuum pump blocked – ● Contact Pfeiffer Vacuum Service.
Tbl. 19: Error messages for vacuum pump
Error code Problem Possible causes Remedy
Wrn117 High temperature vacuum pump (> 75 °C) ● Insufficient cooling ● Improve the cooling
● Check the operating conditions
Tbl. 20: Warning messages for vacuum pump
12.3 Warning and error messages when operating with DCU
Besides the device-specific warning and error messages on the electronic drive unit, additional messag-
es are displayed with the connected display and control panel.
Malfunctions
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