INVT Goodrive350-19 Series Operation Manual page 530

Goodrive350-19 series VFD
VFD model
GD350-19-110G-4-B
GD350-19-132G-4
GD350-19-160G-4
GD350-19-185G-4
GD350-19-200G-4
GD350-19-220G-4
GD350-19-250G-4
GD350-19-280G-4
GD350-19-315G-4
GD350-19-355G-4
GD350-19-400G-4
GD350-19-450G-4
GD350-19-500G-4
Note:

Select braking resistors according to the resistance and power data provided by our company,
but the resistance cannot be less than the min. allowable resistance in the table. Otherwise,
braking units may be damaged. In addition to the motor electricity generation power, braking
resistors are related to inertia, DEC time, and potential energy, that is, greater inertia, shorter
DEC time, and more frequent braking require braking resistors with higher power and smaller
resistance.

When grid voltages are different, you can adjust energy consumption braking threshold voltage.
For example, if the threshold voltage needs to be increased, you need to increase the braking
resistance.

The recommended min. power of a braking resistor indicates the rated power of the resistor that
can run in a long period of time in nature cooling condition. If air cooling fans are used, the
braking resistance can be decreased slightly.

When using an external braking unit, set the brake voltage class of the braking unit properly by
referring to the manual of the dynamic braking unit. If the voltage class is set incorrectly, the VFD
may not run properly.

In hoisting applications, the resistor resistance needs to be less than the braking resistance
applicant to 100% torque but greater than the min. allowable resistance.
Braking unit
Rated
Max. peak
continuous
Model braking
braking
current (A)
current (A)
220 260
DBU100H-220-4
DBU100H-320-4
DBU100H-400-4
Two DBU100H-320-4
Two DBU100H-400-4
-523-
Optional peripheral accessories
Braking resistor
Resistance Recommended
applicable to min. power in
100% braking lifting
torque (Ω) (kW)
≥55
4.5
≥66
3.7
≥80
3.1
≥92
2.8
≥100
2.5
≥110
2.2
≥125
2
≥70*2
3.6*2
≥80*2
3.2*2
≥90*2
2.8*2
≥100*2
2.4*2
≥125*2
2.0*2
Recommended
Min.
min. power in
allowable
horizontal
resistance
moving
(Ω)
(kW)
≥27
3.2
≥33
3.2
≥40
≥46
2.2
≥50
≥55
1.8
≥62
≥35*2
≥40*2
2.2*2
≥45*2
≥50*2
≥62*2
1.8*2