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Installation
54
130001398_002_C0 - 09/2016 - © Leybold
When wiring the main electric circuit on the output side observe the follow-
ing precautions:
Do not connect to the output of the frequency converter other loads than
the three-phase motor.
Never connect a current source to the output of the frequency converter.
Never short-circuit the output terminals.
Do not use any capacitors for the purpose of phase correction.
Start/stop Connection
Bridge SC and S6 to enable the drive.
Bridge SC and S1 to start the drive, open SC and S1 to stop the drive.
Sensors
Connect the Pt 1000 temperature sensor of the WH 2500 to T1 and TC.
30 m connection cable is delivered for the Pt 1000.
Connect the motor temperature sensor (PTC) of the WH 4400/7000 to A2
and AC. The terminals at the pump can be found in the motor junction box.
3.4.6 Check the Direction of Rotation
Not required with internal frequency converter.
After connecting the motor and every time you alter the wiring, check the
direction of rotation.
Never allow the pump to run in the wrong direction or with open flanges for
a longer period of time. Notice safety information 0.1.
An arrow on the pump casing shows the correct direction of rotation for the
impeller connected to the motor shaft.
The impellers should move up from the center and drop down to the side.
Even if the pump has been already firmly connected to the piping, you may
determine the direction of rotation. To do so note the oil level change on the
motor side
upon switching on the pump.
Oil level moves up 2-3 mm => Rotation direction is wrong
Oil level stays constant or drops slightly => Rotation direction is correct
In case of a wrong direction of rotation, disconnect the pump from the mains
power and interchange two mains phases.
CAUTION
Pt 1000
Anschluss,
Gewinde M6
Fig. 3.16 Motor of the RUVAC WH 2500 with
external frequency converter
Connection,
Thread M6
NOTICE
External Frequency Converter
Содержание RUVAC WH 2500
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