Installation
37
300407956_002_C1 - 01/2017 - © Leybold
3.6.3 Checking the Direction of Rotation
The rotational direction is correct, when there is pressure at the exhaust and
the attached plastic cap fixed to the exhaust is blown off, after the pump has
been test-switched on.
3.6.4 Connecting an external Frequency Converter
Observe Safety Information 0.2.
Take note of the information provided in the manufacturer’s Operating
Instructions enclosed with the frequency converter Read these Operating
Instructions and make yourself comfortable with the contents before install-
ing and operating the frequency converter or before doing maintenance
work on it. The frequency converter must be installed in agreement with
the information given in these Operating Instructions and in agreement with
the locally applicable regulations. Non-compliance with the safety informa-
tion can result in severe or even deadly injuries or may damage the prod-
ucts or facilities and systems operated in connection with the product.
Enclosed with the frequency converters delivered by Leybold is a copy of the
instructions for commisioning the Yaskawa V1000. This frequency converter
shows an integrated mains filter and perfectly matches the pump.
P/N.
for LEYVAC
115005A30
LV 80, 4.1 kW, 400 V
115005A31
LV 80, 4.1 kW, 200 V
115005A35
LV 140, 5.5 kW, 400 V
115005A36
LV 140, 5.5 kW, 200 V
115005A40
LV 250, 11 kW, 400 V
■
Connect the pump to the correct mains voltage through the connections in
the junction box (cf. Fig. 3.3).
■
Do not connect the electric control circuitry to the power circuitry of the
frequency converter.
■
Use fuses recommended in Main Circuit only, cf. the section Technical
Data.
Connect both thermal switches as shown in Fig. 3.8 to ensure that the pump
is shut down as soon as one of the monitoring facilities responds:
■
Connect the casing’s thermal switch (nc; trigger 85°C) to inputs S2-SC and
■
the motor’s thermal switch (nc; trigger 90°C) to inputs S3-SC of the FC.
Shielded types of cable must be used for the motor power supply line.
The max. length for the cable between external frequency converter and
motor is 30 m.
WARNING
