Configuring The Resistors - Siemens Sinamics S120 Function Manual

Basic functions
6.11 Motor Module as braking module
6.11.2

Configuring the resistors

1. Under no circumstances may the resistance values for the peak braking power, which are
2. The resistance values apply for each of the 3 resistors in a star connection in the cold
3. Each braking resistor absorbs 1/3 of the total braking power. It is imperative that you take
4. For a delta connection, multiply the braking resistance value by a factor of 3.
5. The tables apply for all Motor Module, chassis format (liquid- or air cooling).
6. The cable lengths to the resistors must be at least 10 m.
7. At rated voltages of 380 V to 480 V, Motor Module with a type rating ≥ 250 kW are
8. At rated voltages of 500 V to 690 V, all Motor Modules in the chassis format have been
You can enter the resistance value in a star connection into parameter p1360. The default
setting of the resistance values is calculated from:
● p1360 = p1362[0] / (sqrt(6) * r0207[0])
● p1362[0] = braking module activation threshold according to the following table
● r0207[0...4] = rated current of the Infeed Module.
Table 6- 8 Resistance table 380 - 480 V supply voltage
Motor Rated
Module voltage
frame size
[V]
G 400
480
H 400
480
H 400
480
H 400
480
J 400
480
J 400
480
J 400
480
258
listed in this table, be fallen below!
state.
into account the power rating of the resistors
permitted.
released for use of this function.
Rated Braking
current current
[A] [A]
490 450
490 450
605 545
605 545
745 680
745 680
840 800
840 800
985 900
985 900
1260 1215
1260 1215
1405 1365
1405 1365
U Continuou
DC link
chopper s braking
threshold power
[V] [kW]
667 368
774 427
667 445
774 517
667 555
774 645
667 654
774 758
667 735
774 853
667 93
774 1152
667 1115
774 1294
Function Manual, (FH1), 01/2012, 6SL3097-4AB00-0BP2
Peak Resistance at the
braking continuous
power braking power
[kW] [Ω]
551 0,605
640 0,702
668 0,500
775 0,580
833 0,400
967 0,465
980 0,340
1138 0,395
1103 0,303
1280 0,351
1489 0,224
1728 0260
1673 0,199
1941 0,231
Resistance at the
peak braking
power
[Ω]
0,403
0,466
0,333
0,387
0,267
0,310
0,277
0,263
0,202
0,234
0,149
0,173
0,133
0,154
Drive functions