Procon VLD 22 - Brake Resistor Selection

H - I - J FREQUENCY CONVERTERS INSTRUCTION MANUAL 0,55 ÷ 200 kW
- 20 -
• Potentiometer (2 ÷ 10 kΩ, linear)
Wiring:
1 2 3
Frequency conv.
terminal blocks
Potentio-
meter
SA 1
1
SA 2
2
SA 3
3
• Selection of the brake resistors at dynamic braking
The power on the brake resistor depends on the braking time and the duty factor. (Pnominal / 50 ÷ Pnominal)
The necessary power is determined by the braking time and the duty factor.
(  see: Programing manual, support for dimensioning the brake resistor)
Frequency
converter type
Resulting
resistance
V3D 0.55 - 1.1
≥ 200 Ω
V3D 1.5 - 4
≥ 100 Ω
VLD 5.5
≥ 50 Ω
VLD 7.5 - 11
≥ 25 Ω
VLD 15
≥ 20 Ω
VLD 22
≥ 13 Ω
VHD 30 - 37
≥ 11 Ω
VHD 45 - 55
≥ 8 Ω
VHD 75 - 90
≥ 4,5 Ω
VHD 110 - 160
≥ 3,3 Ω
VHD 200
≥ 2,2 Ω
▪ 100 W wire-wound
resistors
(50÷200 Ω)
▪ 500 W wire-wound
resistors
(50÷100 Ω)
▪ 2÷4 kW cased brake
resistor modules
(12,5÷100 Ω)
VHD 250
≥ 1,6 Ω
8
CAUTION
The brake resistors are imposed to high voltages of 660 V DC.
The appliance must be installed and wired very carefully because of heat developing and for proper
electric shock protection.
For wiring use cables with heat-resisting coating.
 MAINTENANCE
At normal operation the device needs no maintenance. Depending on the surroundings inspect regularly the
ventilators, and at models built in cabinet also the condition of the filter cartridge.
Inspect the screwed fastenings according to the local maintenance regulations, but at least once a year.
 GUARANTEE AND REPAIR
The products come with a guarantee period of 24 months.
8
CAUTION
The guarantee covers normal operation only.
In case of improper storage, improper use or unauthorized intervention the guarantee terminates.
Repair will be accomplished both within the guarantee period and after in the manufacturer’s premises, the
appliance has to be transported there by the user.