The MG battery comes with a 'penthouse' with contractors and pre-charge relay.
The wiring to the OpenInverter comms connector shows lines for 'main contractor [sic] relay' (P3) and 'pre-charge relay' (P11)
Basic Tesla SDU question
Basic Tesla SDU question
I have a Tesla SDU with OpenInverter board and a repackaged MG ZS EV battery.
The MG battery comes with a 'penthouse' with contractors and pre-charge relay.
The wiring to the OpenInverter comms connector shows lines for 'main contractor [sic] relay' (P3) and 'pre-charge relay' (P11) Does this mean the SDU inverter contains contacts and pre-charge resistor? Do I just connect high voltage straight up to it?
The MG battery comes with a 'penthouse' with contractors and pre-charge relay.
The wiring to the OpenInverter comms connector shows lines for 'main contractor [sic] relay' (P3) and 'pre-charge relay' (P11) Does this mean the SDU inverter contains contacts and pre-charge resistor? Do I just connect high voltage straight up to it?
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muehlpower
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Re: Basic Tesla SDU question
Ahh, ok. I assume that is the contactor coil shown in the diagram on the Main and Pre-charge lines. So the OpenInverter board pulls them low when it switches them on.
Makes perfect sense now thanks.
Makes perfect sense now thanks.
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muehlpower
- Posts: 690
- Joined: Fri Oct 11, 2019 10:51 am
- Location: Germany Fürstenfeldbruck
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- Been thanked: 141 times
Re: Basic Tesla SDU question
The diagram shows the required / optional circuits outside the drive unit