Nord Drivesystems SK 200E Series, Manual

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NORDAC SK 200E Manual
20 Subject to technical alterations BU 0200 GB
1.7 Version with protection class IP55 / IP66
NORDAC SK 200E frequency inverters and the additional modules are available in all sizes and in the
protection classes IP55 (standard) or IP66 (optional).
Protection class IP66 must always be stated when ordering!
There are no restrictions or differences to the scope of functions in either protection class. In order to
differentiate the protection classes, modules with protection class IP66 are given an extra “
-C ” ( c oated
Æ
coated PCBs) in their type designation.
e.g. SK 205E-750-340-A -C
IP55 version:
The IP55 version of the SK 200E is the standard version. Both versions (motor-mounted, mounted on the
motor or wall-mounted on a wall bracket) are available. In addition, all adapter units, technology units and
customer units are available for this version.
IP66 version:
In contrast to the IP55 version the IP66 version is a modified option . Both variants (motor-integrated, close
to motor) are also available. The modules available for the IP66 version (adapter units, technology units and
customer units) have the same functionalities as the corresponding modules for the IP55 version.
NOTE
The modules for the IP66 design are identified by an additional "- C " and are modified
according to the following special measures listed below.
Special measures:
Impregnated PCBs, painted housing
Diaphragm valve for pressure compensation on temperature changes.
Low pressure test
Æ
A free M12 screw connection is required for low pressure testing. After successful testing, a
diaphragm valve is inserted here. This screw connection is therefore no longer available for
a cable gland.
If the frequency inverter is to be retro-fitted, i.e. the drive unit (inverter mounted on the motor) is not
completely obtained from NORD, the membrane valve is supplied in the bag supplied with the frequency
inverter. The valve must be correctly fitted on site by the plant constructor (Note: the valve must be mounted
as high as possible, in order to avoid contact with standing moisture (e.g.: standing moisture due to
condensation).
NOTE
For all versions, care must be taken that the cable and the cable gland are carefully
matched. This is the only way to ensure permanent compliance with the required protection
class.