72 • vacon
ELECTRICAL CABLING AND CONNECTIONS
Tel. +358 (0)201 2121 • Fax +358 (0)201 212 205
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Liquid cooling connection:
The standard delivery of the Vacon NX Liquid-Cooled drive includes hoses on
the cooling element 1.5m in length and 15mm in diameter. The hoses are in-
serted in 1400-mm UL94V0 approved conduits. Connect the line hose branch to
its counterpart (screw or fast connector) on the of the Vacon Liquid-Cooled
drive.
Due to high pressure in the line hose, it is recommended to equip the liquid
line with a shut-off valve, which makes the connection easier. In order to pre-
vent water from spraying in the installation room we also recommend to wrap
e.g. linters around the connection on installing. For more information on the
liquid connection, see chapter 5.2.2.
When the installation in the enclosure is completed the liquid pump can be
started. See Commissioning of the frequency converter on page 127.
Note: Do not switch on the power before ensuring the proper functioning
of the liquid cooling system.
Cable clamp
Armouring
Cable clamp for
EMC grounding
Figure 6-1. Clamping the motor cables to cabinet frame