index reference app_notes hvfe_high_source_current_mod
HVFE high source current modification
HVFE modification instructions to use the high current sensor as a source current sensor.
These are instructions on modifying a remote front end to use its high current sensor (50 A, 100 A or 200 A) as a source current sensor instead of as a load current sensor.
In order to make this modification, you need to have good soldering skills, to make a small modification to the HVFE.
These instructions are applicable to remote HVFEs or BMS controllers with HVFE, with a high current sensor. They are also applicable if the HVFE has 2 current sensors, though the low current sensor will not be useable.
This modification requires that a cable mounted current sensor is used to measure the load current.
These instructions are applicable to the following part numbers:
These instructions are applicable to remote HVFEs with hardware rev E. The rev level is the last letter (followed by 2 digits) in the part number, which is written on the 7-pin white connector.
These instructions are applicable to remote HVFEs with software rev 1.04 (07/06/10) and above, which was programmed into 2HRxxxxxExx and above.
Solder bridges across R36 and R37.
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