Connection To The Converter - Siemens HT-direct Operating Instructions Manual

Transport, installation and assembly

3.8 Connection to the converter

3. Rinse out the water circuit before you connect the cooling water supply to the motor. This
4. If dirt and foreign bodies are potentially present in the cooling water, you must place
5. Connect the cooling circuit to the motor.
Filling
1. Fill the cooling circuit with water until the air is completely forced out of the cooling circuit.
2. Perform a pressure check to see whether the cooling water supply is airtight. The
If you do not then put the motor into operation, you must implement the necessary measures
during work stoppages. [ID 1142.00]
See also
Stoppages (Page 68)
3.8 Connection to the converter
General
Set 2.5 kHz as the converter pulse frequency.
Dangerous voltage at the motor terminals when the rotor is rotating
There is always a magnetic flux in the motor due to the permanent magnets in the rotor.
With each rotation of the rotor, a voltage occurs at the motor terminals. As a result of this,
there is also a voltage at the converter output terminals via the connecting cable. When
working on the drive system, you must prevent any rotational movement of the motor shaft.
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removes deposits and foreign bodies so that they cannot make their way into the cooling
circuit.
suitable filters in the cooling water pipes.
maximum pressure must not be exceeded. The maximum permissible pressure can be
found on the motor rating plate.
WARNING
A5E01083943A AB
Siemens AG Operating Instructions 2.02 1FW4