Nord Drivesystems SK 180E Series, User Manual

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NORDAC BASE (SK 180E / SK 190E) – Users Manual for Frequency Inverters
42 BU 0180 en-4118
NOTICE!
Damage due to incorrect parameterisation
Incorrect settings of parameters (P555), (P556) and (P557) impair the correct function of the braking resistor and
may destroy both this and the frequency inverter.
After setting the parameter "Factory Setting" (P523) to one of the functions 1, 2 or 3, it is essential to reset
parameters (P555), (P556) and (P557) to the correct values.
SK 1x0E-750-323-B(-C)-BRI SK 1x0E-111-323-B(-C)-BRI SK 1x0E-151-323-B(-C)-BRI
SK 1x0E-750-323-B(-C)-NSD SK 1x0E-111-323-B(-C)-NSD SK 1x0E-151-323-B(-C)-NSD
Parameter number Meaning Setting [Unit] Comments
P555 P - chopper limit 100 [%] Power limit 1)
P556 Braking resistor 200 [Ω] Electrical resistance 1)
P557 Braking resistor power 0.05 [kW] Max. continuous power P
n1)
1) of braking resistor
SK 1x0E-151-340-B(-C)-BRI SK 1x0E-221-340-B(-C)-BRI
SK 1x0E-151-340-B(-C)-NSD SK 1x0E-221-340-B(-C)-NSD
Parameter number Meaning Setting [Unit] Comments
P555 P - chopper limit 65 [%] Power limit 1)
P556 Braking resistor 400 [Ω] Electrical resistance 1)
P557 Braking resistor type 0.05 [kW] Max. continuous power P
n1)
1) of braking resistor
Electrical data
Designation Electrical resistance Max. continuous output / limit
2)
(P
n
)
Power
consumption 1)
(P
max
)
SK BRI4-1-200-100 3) 200 Ω 100 W / 25 % 1.0 kWs
SK BRI4-1-400-100 4)
400 Ω
100 W / 25 % 1.0 kWs
1) Maximum once within 10 s 2)
2) In order to prevent impermissible heating of the frequency inverter, the continuous power is limited to
1/4 of the rated power of the braking resistor.
This also has a limiting effect on the energy consumption.
3) Only for Size 2 devices with a rated voltage of 230 V.
4) Only for Size 2 devices with a rated voltage of 400 V.
2.3.2 External braking resistor SK BRE4-... / SK BRW4-… / SK BREW4-…
The external braking resistor is provided for energy
feedback, e.g. as occurs in pulsed drive units or lifting gear.
Here, it may be necessary to plan for the exact braking
resistor that is required (see adjacent figure).
Installation of an SK BRE4-… is not possible in combination
with the wall-mounting kit SK TIE4 - WMK… . In this case,
braking resistors of type SK BREW4 - … are available as an
alternative, which can also be fitted to the frequency inverter.