13
6.2 Battery Module ON/OFF Key
Briefly press the battery module’s ON/OFF key to switch the battery module ON.
NOTICE
The Breaker and the BMS are independent. Setting the Breaker to the ON (Closed)
position does not switch the BMS ON. Setting the Breaker to the OFF (Open) position
does not switch the BMS OFF. Independently set the BMS ON or OFF with the ON/OFF
key.
6.3 At-a-glance LED
WARNING
ELECTRIC SHOCK AND FIRE HAZARD
• Always assume the battery module’s main relay is ON (Closed), even if the At-a-
glance LED shows that it may be off.
• Verify the terminal voltage with a voltmeter before handling and installing the battery
module.
Failure to follow these instructions may result in death or serious injury.
Table 6-1, At-a-glance LED States
LED Description
No LED light The battery module main relay is OFF (Open).
Solid green
The main relay is ON (Closed), and the battery module is ready for
operation.
Flashing
orange
The main relay is ON (Closed), but one or more operating parameters
(voltage, current, temperature) have exceeded a fault threshold. Unless
the condition is corrected, the battery module transitions to protection
mode after about ten seconds, and the main relay switches OFF (Open).
Flashing red
The main relay is OFF (Open), the battery module is in protection mode,
and a fault has occurred.
For a list of faults, refer to Table 3-4. ELEMENT ESS Protection
Specifications.
NOTE
The At-a-glance LED does not communicate the breaker position. Visually inspect the
breaker position.
6.4 LYNK Port
The LYNK Port enables multiple Discover battery modules to communicate and
interact in a closed-loop network. LYNK Port enables networking ELEMENT ESS
battery modules in a closed-loop system with other networked devices such as
inverter-chargers. A closed-loop system enhances safety and optimizes system
performance.
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