Ac Output Chokes; External Braking Resistors - gefran ADL500 Quick Start Up Manual, Specification And Installation

5.3 AC output chokes

The ADL500 inverter can be used with standard motors or motors designed specifically for use with inverters.
The latter usually have a higher isolation rating to better withstand PWM voltage Examples of reference regulations
are provided below: motors designed for use with inverters do not require any specific filtering of output from the
inverter. For standard motors, especially with long cable runs (typically over 100 m) an output choke may be necessary
to maintain the voltage waveform with the specified limits.
The range of recommended chokes are listed in the following table. The rated current of the chokes should be approx.
20% higher than that of the inverter in order to take into account additional losses due to modulation of the output
waveform.
Size
1040
1055
1075
2110
2150
Note !
With the inverter operated at the rated current and a frequency of 50 Hz, the output chokes cause a voltage drop of approx. 2% of the output voltage.

5.4 External braking resistors

Recommended combinations for use with internal braking unit.
Size
1040
1055
1075
2110
2150
1040
1055
1075
2110
2150
1040
1055
1075
2110
2150
Pnbr
Rbr
Ebr
Braking resistors may be subject to unexpected overloads due to faults.
Resistors MUST be protected using thermal cutouts. These devices must not interrupt the circuit in which the resistor is
inserted but their auxiliary contact must cut off the power supply to the power section of the drive. If the resistor requires a
Warning!
protection contact, this must be used together with that of the thermal cutout.
A la suite de pannes, les résistances de freinage peuvent être sujettes à des surcharges imprévues. La protection des
résistances au moyen de dispositifs de protection thermique est absolument capitale. Ces dispositifs ne doivent pas inter-
rompre le circuit qui abrite la résistance, mais leur contact auxiliaire doit couper l'alimentation du côté puissance du drive.
Model
LU3-005
LU3-005
LU3-005
LU3-011
LU3-015
Table 5.4.1: Recommended combination
Resistor type Code Q.ty
RFPR 750 D 68R S8SZ3
RFPR 750 D 68R S8SZ3
RFPR 1200 D 49R S8SZ4
RFPR 1900 D 28R S8SZ5
RFPR 1900 D 28R S8SZ5
Braking resistor rated power
Braking resistor ohmic value
Maximum energy that can be dissipated on the resistor
ADL500 • Quick installation guide - Specifications and connection
Code
ADL5...-...-4, 3ph
S7FG3
S7FG3
S7FG3
S7FG4
S7FH2
List and technical data of standard external resistors
Max. overload, Max. overload,
1" - service 10% 30" - service 25%
E (kJ) E (kJ)
br br
ADL5...-...-4, 3ph - LOW DEMAND
1 7.5 38
1 7.5 38
1 7.5 28
1 12 43
1 12 43
ADL5...-...-4, 3ph - MID DEMAND
ADL5...-...-4, 3ph - HIGH DEMAND
Dimensions:
Width x Height x Depth
mm [inches]
180 x 170 x 110 [7.1 x 6.7 x 4.3]
180 x 170 x 110 [7.1 x 6.7 x 4.3]
180 x 170 x 110 [7.1 x 6.7 x 4.3]
180 x 180 x 130 [7.1 x 7.1 x 5.1]
180 x 160 x 170 [7.1 x 6.3 x 6.7]
P R
Dimensions:
nbr br
Housing
Width x Height x
(W) (Ω) Depth (mm)
425 68 IP44 245 x 75 x 100
425 68 IP44 245 x 75 x 100
470 49 IP44 310 x 75 x 100
550 28 IP44 365 x 75 x 100
550 28 IP44 365 x 75 x 100
1650 68
1650 68
2250 49
3300 28
4500 28
2750 68
2750 68
3750 49
5500 28
7500 28
Weight
kg [lbs]
5.8 [12.8]
5.8 [12.8]
5.8 [12.8]
8 [17.6]
7.5 [16.5]
Weight
(kg)
2.7
2.7
4.2
4.2
4.2
19