Nord Drivesystems SK 510P, Руководство с инструкциями по установке

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NORDAC PRO (SK 500P) – Manual with installation instructions
180 BU 0600 en-3221
P555 P chopper limit S
Setting range 5 … 100 %
Factory setting { 100 }
Description "
Chopper power limit
“. With this parameter it is possible to program a manual (peak)
power limit for the braking resistor. The switch-on delay (modulation level) for the
chopper can only rise to a certain maximum specified limit. Once this value has been
reached, irrespective of the level of the link circuit voltage, the inverter switches off the
current to the resistor.
The result would be an overvoltage switch-off of the FI.
The correct percentage value is calculated as follows:
% 100 *
*
[%]
2
max
max
U
P R
k
BW
=
R = Resistance of the braking resistor
P
maxBW
= Momentary peak power of the braking resistor
U
max
= FI chopper switching threshold
1~ 115/230 V
⇒
440 V =
3~ 230 V
⇒
500 V =
3~ 400 V
⇒
1000 V =
P556 Braking resistor S
Setting range
1 ... 400
Ω
Factory setting { 120 }
Description Value of the braking resistor for calculation of the maximum brake power in order to
protect the resistor.
Note Once the maximum continuous output P557 including overload (200 % for 60 s) is
reached, an I
2
t limit error E003.1 is triggered. For further details see P737 .
P557 Brake resistor type S
Setting range 0.00 ... 320.00 kW
Factory setting { 0.00 }
Description Continuous power (nominal power) of the resistor, to display the actual utilisation in
P737 . For a correctly calculated value, the correct value must be entered into P556
and P557 .
Setting values 0.00 Monitoring disabled