8 3RW3 semiconductor motor control unit (soft starter) - Siemens ...
8 3RW3 semiconductor motor control unit (soft starter) - Siemens ...
8 3RW3 semiconductor motor control unit (soft starter) - Siemens ...
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<strong>3RW3</strong> <strong>semiconductor</strong> <strong>motor</strong> <strong>control</strong> <strong>unit</strong><br />
Warnings<br />
Caution<br />
The devices are all carefully tested at the<br />
factory and are not shipped unless they<br />
are found to be in proper working order.<br />
However, they may be subjected to<br />
stresses during transportation over which<br />
we have no <strong>control</strong>.<br />
Important<br />
The <strong>3RW3</strong>...-1.B1. <strong>soft</strong> <strong>starter</strong> was built as<br />
a class A device. Using this product in residential<br />
buildings could cause radio interference.<br />
Consequently, the impulse series relays in<br />
the main circuit may be in an undefined<br />
switching state.<br />
In the interests of complete safety, the<br />
following procedure should be used at<br />
commissioning or after the replacement<br />
of the SIRIUS <strong>soft</strong> <strong>starter</strong>:<br />
First, apply the supply voltage in order to<br />
put the impulse series relays in a defined<br />
switching state.<br />
Then, switch the main circuit on.<br />
If you deviate from this procedure, the<br />
<strong>motor</strong> can be switched on inadvertently<br />
and cause damage to people or parts of<br />
the system.<br />
SIRIUS System Manual<br />
8-4 GWA 4NEB 430 0999-02c
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