Nord Drivesystems NORDAC FLEX SK 205E Series, Краткие инструкции

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NORDAC FLEX (SK 200E ... SK 235E) – Brief instructions for Frequency Inverters
28 BU 0240 en-US-4920
Pos: 102 /Anleitungen/El ektr onik/FU und Starter/2. M ontage und Installation/Z ubehör/Brem swiderstand/SK 1x0E, SK 2xxE/Brem swiderstand ( BW) (Übers) [SK 1x0E, SK 2xxE] @ 1\mod_1342513979710_14638.docx @ 32689 @ 2 @ 1
2.2 Braking resistor (BW) - (from size 1 )
During dynamic braking (frequency reduction) of a three-phase motor, electrical energy is fed back to
the inverter if necessary. From size 1 and above, an internal or external braking resistor can be used
to avoid a shutdown of the device due to overvoltage. The integrated brake chopper (electronic switch)
sheds the excess DC link voltage (operating point approx. 420 V/720 V
DC
, depending on line voltage)
to the braking resistor. The braking resistor converts excess energy into heat.
Pos: 103 /Anleitungen/El ektr onik/FU und Starter/1. Allgemei nes/Sicherheits- und Install ationshinw eise und W arn- Gefahrenhinw eise/neu/War n- und Gefahrenhinw eise/VORSICHT - H eiße Ober flächen ( Bremswi derstand) @ 28\m od_1551424569795_14638.docx @ 2493080 @ @ 1
CAUTION
Hot surfaces
The braking resistor and all other metal components can heat up to temperatures above 70°C.
• Risk of injury due to local burns on contact.
• Heat damage to adjacent objects
Allow sufficient cooling time before starting work on the product. Check the surface temperatures with
suitable measuring equipment. Maintain an adequate distance to adjacent components.
Pos: 104 /Anleitungen/El ektr onik/FU und Starter/2. M ontage und Installation/Z ubehör/Brem swiderstand/SK 1x0E, SK 2xxE/INFORM ATION - D aten Br emswiderstand param etrier en [SK 200E] @ 21\mod_1528383930708_14638.docx @ 2424921 @ @ 1
Information
Parameterization of braking resistor data
To protect the braking resistor from overload, the electrical characteristics of the braking resistor must be
parameterized in parameters P555 , P556 and P557 . With use of an
internal braking resistor
(SK BRI4-…) this is
done by setting the DIP switch S1:8 (

Section 2.2.1)
Pos: 105 /Anleitungen/El ektr onik/FU und Starter/2. M ontage und Installation/Z ubehör/Brem swiderstand/SK 1x0E, SK 2xxE/Inter ner Br emswiderstand SK BR I4-... [SK 2xxE] @ 21\mod_1528365342363_14638.docx @ 2424697 @ 35 @ 1
2.2.1 Internal braking resistor SK BRI4-…
The internal braking resistor can be used if only slight, short
braking period are to be expected. The item includes a set of
2 braking resistors in the individual rating classes of size 4.
These must be connected in parallel and thereby satisfy the
electrical data from the description of the material. The
mounting location for the 2nd braking resistor is opposite the
mounting location of the 1st braking resistor.
Similar to illustration