INVT Goodrive300 Series Operation Manual page 285

Goodrive300 Series VFD
3. When using an external brake unit, set the brake voltage class of the brake unit properly by
referring to the manual of the dynamic brake unit. If the voltage class is set incorrectly, the VFD may
not run properly.
Never use a brake resistor with a resistance below the minimum value
•
specified for the particular drive. The drive and the internal chopper are not
able to handle the overcurrent caused by the low resistance.
Increase the power of the braking resistor properly in the frequent braking
•
situation (the frequency usage ratio is more than 10%).
D.8.1.3 AC 3PH 380V(-15%)–440V(+10%)
The VFDs of 660V need external braking units. Please select the braking resistor according to actual
operation (such as the brake torque and brake usage requirements).
Model
GD300-022G-6
GD300-030G-6
GD300-037G-6
GD300-045G-6
DBU100H-110-6
GD300-055G-6
GD300-075G-6
GD300-090G-6
GD300-110G-6
GD300-132G-6
DBU100H-160-6
GD300-160G-6
GD300-185G-6
GD300-200G-6 DBU100H-220-6
GD300-220G-6
GD300-250G-6
GD300-280G-6
DBU100H-320-6
GD300-315G-6
GD300-350G-6
GD300-400G-6 DBU100H-400-6
GD300-500G-6
Brake
resistor
Model of value
braking matched
unit with 100%
brake
torque (Ω)
55
40.3
32.7
26.9
22.0
16.1
13.4
11.0
9.2
7.6
6.5
6.1
5.5
4.8
4.3
3.8
3.5
3.0
Two 4.8×2
Dissipated
Dissipation power of
power of brake
brake resistor
resistor (kW) (kW)
(10% brake) (50%
brake)
4 17
5 23
6 28
7 34
8 41
11 56
14 68
17 83
20 99
24 120
28 139
30 150
33 165
38 188
42 210
47 236
53 263
60 300
38×2 188×2
280
Peripherial options and parts
Dissipated
power of
brake allowed
resistor brake
(kW) resistor
(80%
brake)
27
36
44
54
66
90
108
132
158
192
222
240
264
300
336
378
420
480
300×2
Min
(Ω)
10.0
6.9
5.0
3.4
2.8
3.4×2