text: <s>[INST] Powerflex 753 with 1336 brake chopper In process of upgrading a Impact1336 to a PF753. The system currently uses a 1336 chopper for braking. Can I reuse this or do I have to use dynamic braking through the drive. [/INST] You must take the chopper out of the circuit and do dynamic braking through the drive. \\n </s>