apt 98600 built in precharge?

[_Elysium_]

Looking for some advice. My team is using two apt 96800 controller to control two QS 12kw car motors. The battery will be outputting 96V and 200 amps. I was worried about frying the controllers, but based on the schematic provided upon purchase is shows a built in precharge circuit within the controller. Does anyone know if the is effective? Or is an external precharge still needed? Thanks!

 

[eee291]

To me, it looks like those are external components, since the schematic says DC in after the relay.

Switch Battery+ to the B1 terminal and B- to the DC- on the controller, this will precharge the capacitors, you can make sure by measuring the DC+ with a multimeter. Once you see battery voltage on DC+ you can close B+ with a contactor or a mechanical switch