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Installation
42
130001398_002_C0 - 09/2016 - © Leybold
3.4 Electrical Connection
Depending on the motor, the RUVACs can be operated as follows:
■
with a direct mains power connection. For these pumps please ask us for
a quotation when wanting to use a frequency converter.
■
within the scope of the technical data a freely selected
frequency converter
For this you may use pumps for which we are offering the external frequen-
cy converter.
■
with a specified internal frequency converter or
■
with a specified external frequency converter
Pumps intended for operation with a frequency converter
must not be con-
nected directly to the mains power
.
The external frequency converters supplied by Leybold comply with EMC
guidelines when the cable between pump and frequency converter does not
exceed a length of 25 meters maximum. Longer cables are possible but at
the risk of possibility exceeding EMC limits.
Compliance with the EMC emission levels in industrial environments is
ensured when complying with the listed operating conditions. The maximum
motor cable length must not be exceeded.
The frequency converter may, when deployed in residential areas, cause
highfrequency interference. In such a case the operator of the unit will have
to introduce additional measures for the purpose of suppressing high-fre-
quency interference.
3.4.1 Direct Mains Power Connection
Notice safety information 0.2.
Connect the pump to the correct mains voltage through the connections pro-
vided in the junction box (see fig. 3.7).
The motor of the RUVAC is equipped with
■
a temperature switch (PTO) and a temperature dependent resistor (PTC)
(RUVAC 4400 und 7000)
■
a temperature dependent resistor (PTC) (RUVAC 2500)
Connect the PTO or PTC so that the pump is reliably shutdown when being
thermally overloaded.
NOTICE
WARNING
Direct Mains Connection
Содержание RUVAC WH 2500
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