Semiconductor soft starter 3RW3 Warning notes Warning! Caution The units have been conscientiously tested at the works before delivery and have been found to be in proper working order. During the course of transportation, stresses may occur upon which we have no influence. The soft starter 3RW3...-1.B1. was pro- duced as a Class A device. Use of this product in dwellings may cause radio fre- quency interference. As the result of this, the bypass relays in the main circuit may be in an undefined switching state. In the interests of complete safety, the following procedure is necessary during commissioning or after a replacement of the SIRIUS soft starter:
Apply the supply voltage first in order to set the bypass relays to a defined switch- ing state Then activate the main circuit. If you do not keep to this procedure, the motor may be inadvertently activated and may cause injuries or damage to parts of the system. 8-4 Stand 08/99