Nord Drivesystems NORDAC LINK SK250E-FDS - Electrical Connection of Power Unit; Mains Connection

NORDAC LINK (SK 250E-FDS ... SK 280E-FDS) – Users Manual for Frequency Inverters as Field Distributors
42 BU 0250 en-3021
Pos: 101 /Anleitungen/ Elektronik/F U und Starter/2. Montage und Ins tallation/Elektr ischer Anschluss/ SK 1xxE, SK 2xxE, SK 5xxP, SK xxxE-FDS/Leistun gsteil/Elektrisc her Anschluss Leistungs teil_Teil0_Über schrift [SK 1xxE, SK 2xxE, - FDS, SK 5xxP] @ 19\mod_151152672528 3_388.docx @ 2372474 @ 3 @ 1
2.3.2 Electrical connection of power unit
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NOTICE
EMC interference to the environment
This device produces high-frequency interference, which may make additional suppression measures
necessary in domestic environments (see 8.3 "Electromagnetic compatibility (EMC)").
The use of shielded motor cables is essential in order to maintain the specified radio interference
suppression level.
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Please note the following on connecting the device:
1. Ensure that the mains supply provides the correct voltage and is suitable for the current required
(see 7 "Technical data").
2. Ensure that suitable electrical fuses with the specified nominal current range are installed between
the voltage source and the device.
3. Mains cable connection (supply – “LE”): on option slot X1
4. Motor cable connection (“MA”): on option slot X3
5. Optional
a. Mains cable connection (outlet – “LA”): on option slot X2, or
b. Motor cable connection (2. motor – “MA2”): on option slot X2
At least one four-core motor cable must be used and U-V-W and PE connected to the plug connector.
Information
Connection cables
Only use copper cables with temperature class 80°C or equivalent for connection.
Higher temperature classes are permissible.
Pos: 104 /Anleitungen/ Elektronik/F U und Starter/2. Montage und Ins tallation/Elektr ischer Anschluss/ SK 1xxE, SK 2xxE, SK 5xxP, SK xxxE -FDS/Leistungstei l/Elektrischer Anschluss Leistungstei l_Teil3 - Netzansch luss [SK xxxE-FDS] @ 48\mod_1 596698622853_388.doc x @ 2658050 @ 4 @ 1
2.3.2.1 Mains connection
No special fuses are required on the mains input side of the device. It is advisable to use mains fuses
(see technical data) and a main switch or contactor.
Isolation from or connection to the mains must always be carried out synchronously and for all poles.
In the standard version, the device is configured for operation in TN or TT networks. The mains filter
provides its normal effect and the resulting leakage current. A star point-earthed mains must be used.
Pos: 105 /Anleitungen/ Elektronik/F U und Starter/2. Montage und Ins tallation/Elektr ischer Anschluss/ SK 1xxE, SK 2xxE, SK 5xxP, SK xxxE -FDS/Leistungsteil/ Elektrischer Anschluss Leistungstei l_Teil3 - Anpassung an I T-Netze_00 [SK 1x0E,SK 2xxE,SK xxxE-FDS] @ 19\mod_1 511533769988_388.doc x @ 2372726 @ 5 @ 1
Adaptation to IT networks – (from size 0)
Pos: 106 /Anleitungen/ Elektronik/F U und Starter/1. Allgemeine s/Sicherhei ts- und Installationshi nweise und Warn- Gefahr enhinweise/neu/ Warn- und Gefahrenhinwei se/WARNUNG - Unerwarte te Bewegung bei Netzfehler (IT-Netz) [SK 1x0E, SK 2xxE, SK 2xxE-FDS, SK 500P] @ 32\mod_1553605395741_3 88.docx @ 2520656 @ @ 1
WARNING
Unexpected movement in case of mains faults
In case of a mains fault (short circuit to earth) a frequency inverter which is switched off may switch
on automatically. Depending on the parameterisation, this may cause the drive unit to start
automatically and therefore cause a risk of injury.
•
Secure the system against unexpected movement (block, decouple mechanical drive, provide
protection against falling, etc.)
Pos: 107 /Anleitungen/ Elektronik/F U und Starter/1. Allgemeine s/Sicherheits- und I nstallationshin weise und Warn- Gefahrenhin weise/neu/W arn- und Gefahrenhinwei se/ACHTUNG - Betrieb am IT – Netz [SK 2 xxE-FDS] @ 19\mod_15115318 29282_388.doc x @ 2372656 @ @ 1