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Unidrive SP Regen Installation Guide 197
Issue Number: 2 www.controltechniques.com
Table 10-23 575V / 690V Regen inductor specifications
10.4.2 Softstart resistor - type TG series
The start-up circuit limits the amount of current flowing into the DC bus of
the Regen drive and motoring drive(s) when the supply is first switched
on.
The softstart resistors required for single regen multiple motoring
applications are as specified in the following table. Resistor energy pulse
rating and overload are non-standard and therefore important.
The following resistors can be configured to meet the required
resistance (series parallel arrangements).
Table 10-24 Softstart resistor
Softstart resistor MCB
Protection for the softstart circuit is provided using a thermal overload to
protect against a high impedance short circuit, and a separate magnetic
overload to protect against a direct short circuit.
Table 10-25 Softstart resistor MCB
10.4.3 Switching frequency filter
The AC input terminals of a Regen drive produce a PWM output voltage,
which has a sinusoidal component at line frequency, plus significant
harmonics at the switching frequency and its multiples.
Switching frequency filter inductors
The following inductors are standard 3-phase inductors, rated at drive
rated current for a single regen system. They carry only 50/60Hz current
with a negligible amount of high frequency current.
The switching frequency filter inductors need to be rated to the total
current requirement of the system.
Inductor part
number
Amps mH
Losses
W
L
mm
D
mm
H
mm
Weight
kg
Fixing centres (x * y)
mm
Fixing
mm
Fixing
type
4401-0210 19 5.3 268 325 220 320 32 200 x 180 11
A
4401-0211 22 4.6 288 325 220 320 33 200 x 180 11
4401-0212 27 3.8 322 325 220 320 39 200 x 180 11
4401-0213 36 2.8 348 370 260 360 55 240 x 220 11
4401-0214 43 2.4 398 375 280 360 65 240 x 240 11
4401-0215 52 1.9 456 395 280 360 77 240 x 240 11
4401-0216 63 1.6 503 395 280 360 97 240 x 240 11
4401-0217 85 1.20 605 430 300 410 110 280 x 260 11
4401-0218 100 1.00 950 500 350 480 170 320 x 260 11
4401-0219 125 0.80 880 490 320 480 130 320 x 260 11
4401-0220 144 0.70 1022 500 320 480 140 320 x 260 11
4401-0221 168 0.60 1656 555 300 480 165 320 x 240 11
4401-0222 192 0.53 1350 600 350 480 180 320 x 260 11
CT part no Resistance
1270-3157 150
1270-2483 48
CT part
number
Rated
current
Rated
Voltage
No of
poles
4133-0117 0.3 480 1
4133-0217 1 480 1
4133-0277 2 480 1
NOTE
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