Manuals through 2025 now available!

Our trusted friends have launched a new website named LEMON, which has newer manuals. It also contains all the CHARM manuals.

LEMON is the spiritual successor to CHARM, I recommend you try it!

Link: lemon-manuals.la or lemon-manuals.org.ua

(Some people have issue connecting. LEMON is investigating. For now, use Firefox or change your DNS server)

Or, hide this message: temporarily or permanently

F/S Relay

COMPONENT PARTS

F/S Relay

The F/S (fail-safe) relay supplies the driving power for the system main relay inside the Li-ion battery. VCM
activates the F/S relay to make the system main relay controllable when the system is set to READY or when the battery is charged.
When VCM detects a malfunction in the EV system and judges that the system main relay must be deactivated, VCM deactivates the F/S relay to shut off the system main relay driving power.