System Power-Off - Pytes E-Box Series User Manual

⚫ Wear personal protective equipment and use dedicated insulated tools to avoid
electric shocks or short circuits.
⚫ Do not smoke or have an open flame around batteries.
⚫ Do not use wet cloth to clean exposed Busbar or other conductive parts.
⚫ Do not use water or any solvent to clean batteries.
⚫ Do not maintain batteries with power on. To power off the batteries before
performing operations such as checking and tightening screw torques, explain the
risks to the customer, obtain the customer's written consent, and take effective
preventive measures.
⚫ After batteries are discharged, charge them in time to avoid damage due to
overdischarge.
⚫ Before moving or reconnecting the equipment, disconnect the mains and batteries
and wait for five minutes until the equipment powers off. Before maintaining the
equipment, check that no hazardous voltages remain in the DC bus or components
to be maintained by using a multimeter.
⚫ Stay away from the equipment when preparing cables to prevent cable scraps from
entering the equipment. Cable scraps may cause sparks and result in personal
injury and equipment damage.

7.1 System Power-Off

Precautions
After the system powers off, the remaining electricity and heat may still cause
⚫
electric shocks and body burns. Therefore, wear protective gloves 5 minutes after
the system is powered off before performing any operation on the battery. You can
maintain the battery only when all indicators on the battery are off.
Powering off the system
Step 1 Turn off the AC switch between the inverter and the power grid.
Step 2 Turn off the DC switch between the battery and inverter.
Step 3 Turn off the DC switch between the PV switch and the inverter if there is any.
Shanghai Pytes Energy Co., Ltd