Danfoss FC 300 Design Manual page 117

FC 300 Design Guide
AutomationDrive FC 302 - Line power: 525–690 V (T7) - 40% Duty Cycle
AutomationDrive P R
m (HO) min
FC 302
T7 [kW] [Ω]
P37K 37 18
P45K 45 13.5
P55K 55 13.5
P75K 75 8.8
P90K 90 8.8
P110 110 6.6
P132 132 4.2
P160 160 4.2
P200 200 3.4
P250 250 2.3
P315 315 2.3
Abbreviations for the Tables
*) Resulting max. brake torque when using R
max. brake torque
2 *) All cabling must comply with national and local regulations on cable cross-sections and ambient temperature. Copper (140°–167°F [60°/75°C])
conductors are recommended.
3 *) Order the specified amount of Brake Resistors (e.g., 2 x 1062 = 2 pieces of 175U1062). See table header for the first four characters (175U or 130B).
4 *) Rating for each thermistor relay (using one thermistor relay per resistor).
5 *) Parallel star connection (see the
6 *) Please contact Danfoss for further info.
7
*) With Klixon Switch
P : Rated motor size for VLT type
m
R : Minimum permissible brake resistor - by drive
min
R : Recommended brake resistor (Danfoss)
rec
P : Brake resistor rated power as stated by supplier
b, max
Therm. relay : Brake current setting of thermal relay
Code number : Order numbers for Danfoss Brake Resistors
Cable cross-section : Recommended minimum value based upon PVC insulated copper cable, 86°F [30°C] ambient temperature with normal
heat dissipation
P : Brake Resistor average rated power as stages by
pbr,avg
R : The nominal (recommended) resistor value to ensure a braking energy on motor shaft of 160%/110% for 1 minute
br,avg
R R P
br. nom rec
[Ω] [Ω] [kW]
23.5 22
19.3 18
15.8 15
11.5 11
9.6 9.1
7.8 7.5
6.5 6.2
5.4 5.1
4.3 7.8 / 2 = 3.9 2 x 78
3.4 6.6 / 2 = 3.3 2 x 90
2.7 5.4 / 2 = 2.7 2 x 112
. Using the R will result in maximum brake torque, e.g., of 160%. The value in brackets is the drives
rec br,nom
Installation
chapter).
MG.33.BC.22 - VLT ® is a registered Danfoss trademark
Order no. Period
br avg
130Bxxxx [s]
28 2118 600
33 2119 600
42 2120 600
56 2121 600
66 2122 600
78 2123 600
96 2124 600
120 2125 600
3 600
2 x 2126 *
2 x 2127 3 * 600
2 x 2128 3 * 600
5 How to Order
Cable cross- Therm. Max. brake
section Relay torque with
R *
rec
[mm2] [A] [%]
6 35 150 (150)
10 42 150 (150)
16 52 150 (150)
25 71 150 (150)
35 85 146 (150)
50 102 150 (150)
50 124 150 (150)
70 198 150 (150)
2 x 25 200 150 (150)
2 x 35 234 150 (150)
2 x 50 288 150 (150)
5
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