How to Tune tmpmmax on ZombieVerter VCU

Maximum motor temperature before power reduction.

Quick Reference

Param ID

Unit

°C

Range

70 — 300

Default

300

Maximum motor temperature before power reduction.

Default value: 300

Valid range: 70 to 300

Start with the default value and adjust in small increments. Monitor vehicle behavior after each change before making further adjustments.

⚠️ If tmpm reads 6400 (full scale), your temp sensor is unconnected or faulty! The VCU derates throttle to 0.

For GS450H: tmpm comes from MG2 temp pins — must be connected.

If no sensor: leave tmpmmax=300 to bypass.

Leaf motor: ~120°C. GS450H: ~150°C.

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Other parameters in the Battery & HV category that work together with tmpmmax:

Minimum DC voltage. Power is reduced below this.

Maximum DC voltage during regen. Set to your pack's max charge voltage.

Maximum DC current draw (acceleration). Set to battery's max discharge rating.

Maximum DC regen current. Must be NEGATIVE for regen to work!

Maximum heatsink temperature before power reduction.