Safety Guide - Unitronics UMI-B1 UL Series Operation Manual

UMI-B1 UL Series Inverter

1.3 Safety guide

•
Only qualified electricians are allowed to operate on the inverter.
•
Do not carry out any wiring and inspection or changing components
when the power supply is applied. Ensure all input power supplies are
disconnected before wiring and checking and always wait for at least the
time designated on the inverter or until the DC bus voltage is less than
36V. Below is the table of the waiting time:
1PH 220V
3PH 220V
3PH 460V
•
Do not refit the inverter unauthorized; otherwise fire, electric shock or
other injury 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 measurements to avoid electrostatic discharge during relevant
operation.
1.3.1 Delivery and installation
•
Install the inverter on fire-retardant material and keep the inverter
away from combustible materials.
•
Connect the braking optional parts (braking resistors, braking units or
feedback units) according to the wiring diagram.
•
Do not operate on the inverter if there is any damage or components
loss to the inverter.
•
Do not touch the inverter with wet items or body, otherwise electric
shock may occur.
•
Solid-state motor overload protection is performed when the inverter
runs at 150% of FLA.
•
The inverter does not provide motor over-temperature protection.
Note:
•
Select appropriate moving and installing tools to ensure a safe and normal running of
the inverter and avoid physical injury or death. For physical safety, the erector should
take some mechanical protective measurements, such as wearing exposure shoes
and working uniforms.
•
Ensure to avoid physical shock or vibration during delivery and installation.
Inverter module
0.5~3HP (0.4–2.2kW)
0.5~1HP (0.4–0.75kW)
1~3HP (0.75–2.2kW)
Minimum waiting time
2
Safety precautions
5 minutes
5 minutes
5 minutes