NORD Drivesystems BU0540 - Manual (Page 16)

SK 500E – Brief instructions for frequency inverters
16 BU 0540 GB-1013
In addition, EMC-compliant wiring must be ensured. If required, an optional output choke can be
supplied
The safety regulations must be complied with under all circumstances when installing the
frequency inverter!
NOTICE Interference and damage
The control cables, mains cables and motor cables must be laid separately. Under no circumstances may they be
installed in a common conduit or installation duct, in order to prevent interference.
The test equipment for high voltage insulations must not be used on cables that are connected to the motor
controller. Failure to comply with this will cause damage to the drive electronics.
Pos : 49 /Anl eitungen/ Elektroni k/FU und Start er/ 2. M ont age und Ins tall ati on/ 2. 10. 2 Anpassung an IT-Netz e [ BU 0500] @ 1\ mod_1331196207398_388. doc x @ 17782 @ 355 @ 1
2.2.2 Adaptation to IT networks
As delivered, the device is configured for operation in TN or TT networks. Simple adaptations must be
made for operation in an It network. However, these adaptations also cause a deterioration in the
suppression of radio interference.
Up to and including size 7, the adaptation is made with jumpers. As delivered, the jumpers are set in
the “normal position”. With this, the mains filter has its normal effect and leakage current. From size 8
and above there is a DIP switch element. According to the setting of the DIP switch, the frequency
inverter is configured for TN/TT network operation or for operation in an IT network (also refer to
Sections Fehler! Verweisquelle konnte nicht gefunden werden. and Fehler! Verweisquelle
konnte nicht gefunden werden.).
Frequency inverter Jumper A Jumper B Remarks Leakage current
Size 1 - 4 Position 1 Position 1 Operation in IT network Not applicable
Size 1 - 4 Position 3 Position 2 Large filtering effect < 30 mA
Size 1 - 4 Position 3 Position 3 Limited effect of filter << 30 mA
> 3.5 mA
Size 5 - 6 Position 0 Position 1 Operation in IT network Not applicable
Size 5 - 6 Position 4 Position 2 Large filtering effect < 6 mA
Size 7 Position 0 Position 1 Operation in IT network Not applicable
Size 7 Position 4 Position 2 Large filtering effect < 6 mA
DIP switch "EMC-Filter"
Size 8 - 9 OFF Operation in IT network < 30 mA
Size 8 - 9 ON Large filtering effect < 10 mA
Table 3: Integrated mains filter
Adaptation of sizes 1 - 7
NOTICE Jumper positions
Jumper positions which are not illustrated below must not be used, as these may cause the destruction of the
frequency inverter.