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4.10.1
Protecting the cooling-water system
The stainless steel cooling water pipe system is not filled with cooling water when the motor
is supplied.
● When you put the motor into storage after use, drain the water from the cooling water pipe
● For operation at ambient temperatures below 0 °C, add a maximum of 20 % to 30 % of anti-
4.11
Converter operation
4.11.1
Converter input voltage
The insulation system of SIMOTICS machines always complies with the requirements of stress
category C (IVIC C = high stress). If voltage peaks higher than those specified according to
IVIC C can occur, then please contact your Siemens partner:
● For a line supply voltage (converter input voltage) up to max. 480 V, and when controlled
● For line voltages (converter input voltages) higher than 480 V, motors, which are ordered
● Operation with a converter from another manufacturer: Comply with the permissible voltage
NOTICE
Material damage caused by an excessively high supply voltage
The insulation system will be damaged if the supply voltage is too high for the insulation
system. This can completely destroy the machine.
● Comply with the peak voltages as laid down in the guidelines above.
SIMOTICS T-1FW4 Heavy Duty 1FW4407-1KM81-1BC0-Z
Operating Instructions 11/2018
system before you transport and store the motor. Blow-out the cooling water pipe system
using compressed air.
NOTICE
Temperatures below 0 °C
The cooling circuit can be damaged if the cooling water freezes at temperatures below
0°C.
● Drain the water from the cooling water pipe system before you transport and store the
motor.
freeze to the cooling water. For example, use Antrifrogen N or Tyfocor antifreeze.
from a SINAMICS G/SINAMICS S converter with uncontrolled/controlled infeed: Comply
with the guidelines for configuring motor and converter.
for converter operation, have an appropriate insulation system.
peaks according to IEC 60034-18-41 in accordance with stress category C, dependent on
the particular line voltage (converter input voltage) and the motor insulation system.
Preparations for use
4.11 Converter operation
33
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