|
Re: Spikes and CIM?
Regardless of the rules (it sounds like you're trying to repair on old robot that won't be used in competition), a very important factor to keep in mind when pairing motors and motor drives is that, for a short period of time, DC brush motors will always draw stall current when starting from zero speed. Brushless motors can also draw high currents depending on the drive design.
The CIM's stall current when driven with a perfect 12V battery, wiring and motor drive is over 100A. A Spike cannot tolerate those 100A peak currents. Hence the 20A fuse/breaker that is often used on the Spike and why you keep tripping that overcurrent protection device.
Spikes and CIMs don't play nice which is why the rules generally (always?) do not allow that combination. Spikes will work well with most smaller motors, though. You'll just need to learn how to interpret the datasheets for the motors and Spike and select appropriate breakers and fuses.
Russ
|