Lynx Smart BMS For the system to operate correctly, it is essential that all loads and chargers are able to be controlled by either DVCC or the ATC and ATD signals. Ideally wire the ATC and ATD signals to a devices remote on/off connector, or, if that is not available, a Smart BatteryProtect or Cyrix-Li can be used. 5.4.6. Wiring the Remote on/off Instead of the pre-installed wire loop between pin 10 and pin 11, a simple on/off switch can be wired to remotely turn the Lynx Smart BMS on and off. Alternatively, terminal H (pin 10) can be switched high (typically battery positive), or terminal L (pin 11) can be switched low (typically battery negative) to remotely control the Lynx Smart BMS.
The required and maximum voltage levels for remote switching via the H or L pin are listed in the following table: See the below example for the correct wiring: Remote H / Remote L Simple remote on/off switch wired between pin 10 and pin 11, or battery positive (or negative) and pin 10 (or pin 11) For the Lynx Smart BMS to operate, the connection between pin 10 and pin 11 must be closed, or terminal H (pin 10) must be switched high (typically battery positive), or terminal L (pin 11) must be switched low (typically battery negative). 5.4.7. Programmable relay wiring The programmable relay is an SPDT relay (Single Pole, Double Throw) with 3 contacts:
Common (COM) Normally Open (NO) Normally Closed (NC) The relay makes contact between COM and NC when the relay is not active, while COM and NO makes contact when the relay is activated. Depending on the Relay mode setting (Alarm relay or Alternator ATC) in the VictronConnect app, an audible (buzzer or external speaker) or visible device (LED signal) or the signal line (usually the ignition wire) for the ATC signal of an external alternator regulator can be connected. PIN 9 NO Pin 7 NC Programmable relay not active Pinout for the programmable relay Page 12 Installation n On level L pin On Level Maximum voltage Min imum voltage >3 V 70 V -70 V Remote on/off Pin 8 COM