Siemens 400 V / 210...590 A operating instructions Implementation, DC auxiliary, Supply

Installation 01.2004

Water cooling	Inverters with water cooling (item number suffix: -1AA0) are suitable for
	mounting in enclosed cabinets (IP54). The components not mounted on
	the heat sink, such as the electronics and the DC link capacitors, are
	cooled by heat transfer at the heat sink fins. To enable this heat
	transfer to take place, air circulation inside the unit is necessary.
	Therefore, when installing the chassis unit in a cabinet, you must make
	sure that the air being discharged from the fan can flow into the inside
	of the chassis. The partitions to be provided in units with air cooling
	are a disturbing factor in this case! They should not be mounted.
	For an application in the types of protection > IP40, a distance of at
	least 90 mm must be observed between the top of the units and the top
	of the cabinet.
	The units do not require external cooling air.
	Additional losses cannot be dissipated!
	1-inch internal threads are envisaged for the water connection. The
	connecting nipples should be made of stainless steel or thick-walled
	aluminum. Ideally, the connection should have flat seals. If the
	connecting pieces enclosed with the units are used, these should be
	sealed with Loctite 542 or with teflon tape.
	Cooling water infeed (blue) and return (red) must be connected
	according to the color scheme! The color markings can be found next to
	the 1-inch water connection below the heat sink.
Built-in components	If components are built into a cabinet roof section (DC bus, DC 24 V
in the roof section	supply), these should be placed in the center if possible so that the air
	leaving the fans can reach the openings in the roof cover unobstructed.
Implementation of	In order to ensure fault-free operation of the equipment (in terms of
24 V DC auxiliary	electromagnetic compatibility), it is advisable to provide each chassis
supply	unit with its own 24 V DC auxiliary supply with isolating transformer.

5-12	6SE7087-6CX86-2BA1 Siemens AG
	Operating Instructions SIMOVERT MASTERDRIVES AFE