BoostLi Energy Storage Module ESM-48100B1
User Manual
Copyright © Huawei Technologies Co., Ltd.
Notes:
Major alarm: The ESM needs to be maintained immediately.
Minor alarm: The ESM does not require maintenance, but sends a reminder to remote
maintenance personnel.
Blinking at long intervals: on for 1s and then off for 1s
Blinking at short intervals: on for 0.125s and then off for 0.125s
SOC indicator off and other indicators blinking: The ESM has entered the maintenance
mode.
ESM in sleep mode: The fault indicator is off except for reverse-connection protection.
1.3.3 Activation and Startup
An ESM can be activated in three modes. After being activated, the ESM switches from the
sleep mode to disconnected mode.
Activation through the PWR terminal: supply 43.2–58 V DC power to the PWR terminal
on the ESM panel for at least 5s.
Activation through the MANUAL ON/OFF button: hold down the MANUAL ON/OFF
button on the ESM panel for at least 5s and less than 15s.
Activation through the power port: supply a DC voltage of 43.2–58 V to the power
terminal on the front panel for at least 5s.
1.
The MANUAL ON/OFF button is a contact button. The interval for pressing the button should be
greater than 0.5s; otherwise, the operation is ineffective.
2.
If you have forcibly powered off the battery that is in charging, discharging, or disconnected mode
by pressing the MANUAL ON/OFF button, the ESM can be only reactivated by pressing and
holding this button.
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