GEFRAN-SIEI ARTDrive Vector V2 Series - Page 120

Index MENU [Unit] Access Default Min/Max Format Reg.Mode Level Ipa
Parameter Name
Description
Chapter 6 Parameter • 120 ARTDrive V2 series - Instruction Manual
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 STARTUP / Drv & Mot config / BU olvd
The function protects braking resistor by monitoring current in the resistor according to
I2t characteristic. When the protection becomes active,
it is possible to generate an alarm condition. According to the different cases it is
possible to use the device internal IGBT (Internal-External).
B0I STARTUP / Drv & Mot config / BU olvd
B0I.00 BU control N/A RWZ 0 0/2 DP V-F-S-B Easy 1700
The parameter enables the Braking Unit function.
NOTE! The internal BU works in both case with Enable drive ON/OFF (BU control
parameter must be set internal).
[0] Off Function disabled (Default)
[1] Internal Enabling internal braking unit device
[2] External Enabling external braking unit device (Buy or BU32)
B0I.01 BU resistance [ohm] RWZ D.Size Calc/10000 FK V-F-S-B Easy 1740
Braking Unit resistance value, mounted optional on the power section terminals or
external (C & BR1).
B0I.02 BU res cont pwr [kW] RWZ D.Size 0/0 FK V-F-S-B Easy 1710
Braking Unit resistance continuous power.
B0I.03 BU res OL time [sec] RWZ D.Size 1/1000 FK V-F-S-B Easy 1720
Allowed overload factor referring to the overload power of the braking resistance.
Overload factor = overload Power/ rated Power.
t [sec]
(1)
(2)
0
(3)
(1) BU res cont power
(2) BU res OL factor
(3) BU res OL time
Figure B0i.03: BU overload
Example:
DB resistance = 50 Ω
Resistor continuos Amp rating = 15A
Rated for 5 X Amps for 15 secs