DRV-28 inverter
s Safety precautions
-2-
Symbols
Name
Instruction
Abbreviation
off to prevent electric shock
Read
manual
Read the operation manual before
operating on the equipment
Note
Note
Procedures taken to ensure proper
operation
Note
1.4
Safety guidelines
Only trained and qualified electricians are allowed to carry out related
operations.
Do not perform wiring, inspection or component replacement when power
supply is applied. Ensure all the input power supplies are disconnected
before wiring and inspection, and wait for at least the time designated on the
inverter or until the DC bus voltage is less than 36V. The minimum waiting
time is listed in the table below.
Inverter model
Minimum waiting time
400V
1.5kW-110kW
5 min
400V
132kW-315kW
15 min
400V
Above 355kW
25 min
Do not refit the inverter unless authorized; otherwise, fire, electric shock or
other injuries may occur.
The base of the radiator may become hot during running. Do not touch to
avoid hurt.
The electrical parts and components inside the inverter are electrostatic.
Take measures to prevent electrostatic discharge during related operation.
1.4.1 Delivery and installation
Install the inverter on fire-retardant material and keep the inverter away from
combustible materials.
Connect the optional brake parts (brake resistors, brake units or feedback
units) according to the wiring diagram.
Do not operate on a damaged or incomplete inverter.
Do not touch the inverter with wet items or body parts; otherwise, electric
shock may occur.
Note:
Select appropriate tools for delivery and installation to ensure a safe and proper running of the
inverter and avoid physical injury or death. To ensure physical safety, the installation staff should
take mechanical protective measures like wearing exposure shoes and working uniforms;
Ensure to avoid physical shock or vibration during delivery and installation;
Do not carry the inverter by its front cover only as the cover may fall off;