Brake Unit
Brake Unit for Variable Frequency Drive Braking
Brake Unit should work with braking resistor for variable frequency drive braking
Brake Unit
Brake Unit should work with braking resistor for variable frequency drive braking
Model Specifications
Specifications of braking energy unit
| Model Specifications | Usage Occasion | Power Range | Rated Current | Peak Current |
| General Mode | ||||
| FWI-BU3-1L | dynamic braking | 0.75-22KW | 6A | 33A |
| FWI-BU3-1SA | dynamic braking | 30-55 KW | 9A | 50A |
| FWI-BU3-3SA | dynamic braking | 75-132 KW | 10A | 100A |
| FWI-BU3-3H | dynamic braking | 75-132 KW | 40A | 150A |
| FWI-BU3-4H | dynamic braking | 150-220 KW | 50A | 200A |
| FWI-BU3-5H | dynamic braking | 250-315 KW | 60A | 300A |
| FWI-BU3-6H | dynamic braking | 300-450 KW | 70A | 400A |
| Economical Mode | ||||
| FWI-BU3-1G | dynamic braking | 30-55 KW | 10A | 50A |
| FWI-BU3-2G | dynamic braking | 75-132 KW | 12A | 100A |
| High-performance Mode | ||||
| FWI-BU3-3HA | dynamic braking | 160-180 KW | 70A | 150A |
| FWI-BU3-4HA | dynamic braking | 220-250 KW | 85A | 200A |
| FWI-BU3-5HA | dynamic braking | 280-400 KW | 120A | 300A |
Notice:
Rated current is maximum average current when braking unit working. Peak current is maximum current allowed during working, its running time should last less than 20 seconds.
Product Tech Specification
Product Technical Specification
| item | specification | |
Power supply | Network voltage | Tri-phase 220V/380V/460/660V（depend on models） |
Network frequency | 45Hz～65Hz | |
Control | Brake mode | Automatic voltage trace |
| Reaction time | Within 1mS, multiple noise filter algorithm | |
Operation voltage | Depend on different models | |
Hysteresis voltage | less than 10V | |
Protection function | Over-heat, over-current, short circuit | |
Overheat protection | 75℃ | |
| Digit input port | *1pcs, set up functions by software | |
| Digit input port | *1pcs, set up functions by software | |
Display and Settings | Status indicator | There are power indicator & working indicator for all models. And power indicator, malfunctions indicator, fuse-break indicator and brake-status indicator for some models in operation panel. |
Operation monitoring & controlling | Some models with operation panels have operation parameters to monitor AC bus-bar voltage & internal temperature etc. | |
Operation voltage set-up | FWI-BU3-3HA/4HA/5HA set up via operation panel, and others set up when leaving factory. | |
Environment | Installing place | Indoor, elevation no more than 1000m, no sunshine, no electro-conductive powder & corrosive gas |
| temperature | -10~40℃，well-ventilated | |
| humidity | Under 90％RH No dew | |
| Vibration angle | Under 0.5g | |
Notice:
Items marked with * are effective for FWI-BU3-3HA/4HA/5HA only.
