Siemens 400 V / 210...590 A Water cooling, Built-in components, Roof section

01.2004Installation

Water cooling	The units with water cooling (MLFB Annex: -1AC0) are suitable for
	installing in an enclosed cabinet (IP54). The mains filter connection
	module is identical for water and air cooling. 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
	aluminium. 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.

Siemens AG 6SE7087-6CX86-2BA1	5-7
SIMOVERT MASTERDRIVES AFE Operating Instructions