Xinje VH6 Series - Page 197

191
Typical braking frequency value
Common applications
Elevator
Unwinding and
winding
Centrifuge
Accidental
braking load
General
occasions
Braking frequency value
20% ~30%
20 ~30%
50%~60%
5%
10%
Brake resistor models
VFD model
Braking unit
Recommended brake resistor specifications
Brake resistor (Ω)
Brake resistor power (W)
Brake resistor
quantity
VH6-43.7G/5.5P-B
Built-in
≥150
800
1
VH6-45.5G/7.5P-B
Built-in
≥90
400
1
VH6-47.5G/11P-B
Built-in
≥65
500
1
VH6-4011G/15P-B
Built-in
≥43
800
1
VH6-4015G/18P-B
Built-in
≥32
1000
1
VH6-4018G/22P-B
Built-in
≥25
1300
1
VH6-4022G/30P-B
Built-in
≥22
1500
1
VH6-4030G/37P-B
Built-in
≥16
2500
1
VH6-4037G/45P-B
Built-in
≥16
7000
1
VH6-4045G/55P-B
Built-in
≥13
9000
1
VH6-4055G/75P-B
Built-in
≥10.5
11000
1
VH6-4075G/90P-B
Built-in
≥7.5
15000
1
VH6-4090G/110P-B
Built-in
≥7.5
18000
1
VH6-4110G/132P-B
Built-in
≥7.5
22000
1
Note:
(1) The values in the table are guidance data. Users can choose different resistance values and power
according to the actual situation (but the resistance value must not be less than the recommended value
in the table, and the power can be larger). The selection of braking resistance needs to be determined
according to the power generated by the motor in the practical application system, which is related to
the system inertia, deceleration time, energy of potential energy load, etc, Customers need to choose
according to the actual situation. The greater the inertia of the system, the shorter the deceleration time
and the more frequent the braking, the greater the power and the smaller the resistance value of the
braking resistor.
(2) The brake resistance cable shall be shielded cable.
(3) All resistors must be installed in a well ventilated place.
(4) It is suggested that the material of brake resistor accessories should be flame retardant, and the surface
temperature of the resistor is very high. Even the temperature of the air flowing out of the resistance
can be as high as several hundred degrees, so the material must be prevented from contacting with the
resistance.
(5) The brake resistor must be connected to the PB and P + terminals, and the brake unit must be connected
to the P+ and P- terminals. As shown in the figure below: