Danfoss VLT AutomationDrive FC 300 Series - Page 101

FC 302 Vertical braking
Frequency converter data
Brake Resistor data Installation
R
rec
P
br
,cont.
Ordering no.
Cable
Cross
section
Thermal
relay
Mains
P
m
R
min
R
br
,nom
Wire IP54
Screw
Terminal
IP21
Screw
Terminal
IP65
Screw
Terminal
IP20
[type] [kW] [Ohm] [Ohm] [Ohm] [kW] [p/n] [p/n] [p/n] [p/n]
[mm
2
]
[A]
T7 4 180 216 200 1,700 x 175u3122 175u3123 x 1,5 2,8
T7 5,5 130 156 145 2,200 x 175u3106 175u3107 x 1,5 3,7
T7 7,5 94 113 105 3,200 x 175u3132 175u3133 x 1,5 5,2
T7 11 69,7 76,2 72 4,200 x 175u3142 175u3143 x 1,5 7,2
T7 15 46,8 55,5 52 6,000 x x x 175u3242 2,5 10,8
T7 18,5 36,0 44,7 42 8,000 x x x 175u3243 2,5 13,9
T7 22 33,7 37,5 31 10,000 x x x 175u3244 4 18
T7 30 22,5 29,1 27 14,000 x x x 175u3201 10 22,8
T7 37 18,0 23,5 22 17,000 x x x 175u3202 10 27,8
T7 45 13,5 19,3 15,5 21,000 x x x 175u3205 16 36,9
T7 55 13,5 15,7 13,5 26,000 x x x 175u3209 16 43,9
T7 75 8,8 11,5 11 36,000 x x x 175u3212 25 57,3
T7 90 8,8 9,5 9,1 42,000 x x x 175u3214 35 68
Table 5.11 FC 302 Vertical Braking
Horizontal braking: duty cycle 10% and maximum 120 s repetition rates according the reference brake profile. Average power corresponds to 6%.
Vertical braking: duty cycle 40% and maximum 120 s repetition rates according the reference brake profile. Average power corresponds to 27%.
Cable cross section: recommended minimum value based upon PVC insulated copper cable, 30 °C ambient temperature with normal heat
dissipation.
All cabling must comply with national and local regulations on cable cross-sections and ambient temperature. Copper (60/75°C) conductors are
recommended.
Thermal relay: Brake current setting of external thermal relay. All resistors has a build-in thermal relay switch N.C.
IP54: flat pack type with 1000 mm fixed unscreened cable. Vertical and horizontal mounting. Derating required by horizontal mounting.
IP21 & IP65: with screw terminal for cable termination. Vertical and horizontal mounting. Derating required by horizontal mounting.
IP20: with screw terminal for cable termination. Floor mounting.
P
m
: Frequency converter nominal output power as HO.
R
min
: Minimum permissible brake resistor value by frequency converter.
R
br,nom
is the nominal resistor value that ensure a brake power on motor shaft of 150%/160% for 1 minute.
R
rec
: resistor value and resistance of the brake resistor.
P
br,cont
: Power rating of the brake the brake resistor as the average power during continuous braking.
150/160%
0
0.8
3
30* [s]
130BD191.10
Illustration 5.1 Horizontal reference brake profile
150/160%
0
12
30* [s]
130BD192.10
100%
10.5
Illustration 5.2 Vertical reference brake profile
* Maximum 120 s repetition rates with equal average power or duty cycle.
How to Order
VLT
®
AutomationDrive FC 300 Design Guide, 0.25-75 kW
MG33BE02 - VLT
®
is a registered Danfoss trademark 99
5 5
RSPSupply - 1-888-532-2706 - www.RSPSupply.com
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