6SL3201-2AD20-8VA0 SINAMICS V20 Brake Module 400V 230V

Overview

6SL3201-2AD20-8VA0 is a compact braking module dedicated to SINAMICS V20 inverters. Its core function is to cooperate with an external braking resistor to consume the regenerative energy generated during motor deceleration or braking, prevent the inverter’s DC bus voltage from triggering overvoltage protection when the DC bus voltage is too high, and ensure the stable operation of the V20 inverter and drive motor. Matches the specific power range of V20 inverters, and is typically suitable for inverters with power levels of 7.5kW and below (confirmation is required based on load conditions).

FAQ:

1.What are the specific power segments of the Siemens V20 inverter that the 6SL3201-2AD20-8VA0 braking module is suitable for? Does it support the downgraded use of super power inverters?

1. Overheating protection threshold: This braking module is not marked with an independent overheating protection threshold. In the V20 inverter system it is adapted to, the overheating protection threshold of the braking-related unit is usually around 80 – 100°C. In addition, the maximum working environment temperature that the module itself can withstand is 60°C. If the ambient temperature approaches or reaches this value for a long time, the probability of triggering the overheating protection mechanism inside the module will be greatly increased.
2. Fault prompt after overheating protection is triggered: When the braking module is overheated and triggers protection, the matching V20 inverter display screen will display the **”bH”** logo, which is a visual reminder of the braking unit overheating fault. If the fault further spreads and causes the braking unit to be overloaded, some adapted Siemens drive equipment may report an F07083 fault code. This code also includes the meaning of overload protection of the braking unit due to excessive temperature.

2. What are the specific power segments of the Siemens V20 inverter that the 6SL3201-2AD20-8VA0 braking module is suitable for? Does it support the downgraded use of super power inverters?

Adaptable power segment:

6SL3201-2AD20-8VA0 is adapted to the specific frame model and power segment of Siemens V20 inverter:

1. Single phase 230V: FSAA frame, 0.12kW–3kW
2. Three-phase 400V: FSA/FSC frame, 0.37kW–5.5kW
3. V20 7.5kW and above (FSD/FSE frame) frequency converters come with a built-in brake chopper and do not require this module.

Super power downgrade usage is not supported. The rated braking current of this module is 8A. The regenerative power of the over-power inverter far exceeds its carrying capacity, which may cause bus overvoltage tripping, module overheating and burnout, or even damage to the DC circuit of the inverter.

3.How to judge whether the 6SL3201-2AD20-8VA0 brake module is working normally? Is there any simple detection method that does not require disassembling the device?

Basis for judging normal working:

1. When the motor decelerates rapidly, the inverter has no OU (overvoltage) fault and decelerates smoothly.
2. After several rapid decelerations, the braking resistor is warm and the module shell has a slight temperature rise, but there is no peculiar smell.

Simple detection method without disassembling the machine:

1. Working condition test: rapid deceleration with load, no overvoltage trip → the module works normally.
2. Temperature detection: After cooling off for 5 minutes, the touch resistor feels warm → the module is turned on.
3. Parameter query: Check V20 parameters (such as P1230) to confirm that the braking function is activated.
4. Troubleshooting of fault codes: Report bH (overheating) or F07083 (overload) → module abnormality.