gefran BUy-1020 Manuel D'utilisation page 35

English
Contents
English ............................................................................................35
1. Description ................................................................................................ 36
1.1. Standard ..................................................................................................................................... 36
2. Main Features ........................................................................................... 37
3. Technical Data ........................................................................................... 38
3.1. Weights and Dimensions ............................................................................................................ 38
3.2. Required Power, Fuses, LED, Terminals and Switches ................................................................. 42
3.2.1. Required Power ...................................................................................................................................................................42
3.2.2. External Fuses .....................................................................................................................................................................42
3.2.3. Internal Fuses ......................................................................................................................................................................42
3.2.4. LEDs ....................................................................................................................................................................................42
3.2.5. Terminal Strips, Power Cables .............................................................................................................................................43
3.2.6. Dip-switch Description ........................................................................................................................................................44
3.3. Inverter Selection and Intervention Thresholds ........................................................................... 46
3.4. Unit Parallel Connection .............................................................................................................. 47
3.5. Alarm Intervention ...................................................................................................................... 50
3.6. DC Link Discharge Function ........................................................................................................ 51
4. Dimensioning of the Braking Unit and its Corresponding Resistor .......... 52
4.1 Dimensioning example @ 460V .................................................................................................. 54
4.2 Dimensioning example @ 575 V ................................................................................................. 55
4.3 Dimensioning example @ 690 V ................................................................................................. 56
4.4. Resistor Simplified Sizing ............................................................................................................ 59
4.5 Simplified Resistor Sizing Based on Stopping Time ..................................................................... 61
5. Minimum Value of the Used Resistors ...................................................... 63
6. Standard Braking Resistors ...................................................................... 64
7. Block Diagram ......................................................................................... 163
------ Braking Unit ------ 35-GB