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Safety Integrated - Industry - Siemens

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Note Diagram<br />

Overload, thermal motor model<br />

The motor winding temperature is calculated from the measured motor<br />

currents and the device parameters, rated operating current and<br />

shutdown class. It is therefore possible to identify as to whether the<br />

motor is overloaded or is operating in the normal operating range.<br />

Default: Shutdown without restart<br />

The pause time is the time that is specified for cooling-down after operational<br />

shutdowns, i.e. not as a result of overload trips. After this<br />

time has expired, the "thermal memory" of the motor starter is<br />

· changed to 0 % for motor temperature rise < 50%<br />

· reduced to 50 % for motor temperature rise < 50 %<br />

This means that frequent starting attempts are possible (jog mode).<br />

Zero current detection<br />

Zero current is detected if the motor current in all phases is

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