Page 3Device manual 6490B / 6490B-y / 6590BW. Bälz & Sohn GmbH & Co. Koepffstraße 5 D-74076 Heilbronn Telefon (07131) 1500-0 Telefax (07131) 1500-214. Mounting................................................................................................................................................................................. 265. Electrical connection............................................................................................................................................................... 265.1 Wiring diagram............................................................................................................................................................. 276. Commissioning ....................................................................................................................................................................... 287. Technical data ......................................................................................................................................................................... 298. Ordering number baelz 6490B / 6490B-y / baelz 6590B........................................................................................................ 299. Overview of configuration level, data list............................................................................................................................... 31Warning:When operating electrical equipment, certain parts of this equipment automatically carry dangerousvoltages. Failure to observe these instructions could therefore lead to serious injury or materialdamage. Therefore the warning notes, included in the following sections of these operating instruc-tions, must be observed accordingly. Persons working with this unit must be properly qualified andfamiliar with the contents of these operating instructions.Perfect reliable operation of this unit presupposes suitable transport including proper storage,installation and operation.