Goodrive350 series high-performance multifunction VFD
Safety precautions
-3-
Do not carry the VFD by its front cover only as the cover may fall off.
Installation site should be away from children and other public places.
The VFD should be used in proper environment (see section 4.2.1 Installation environment for
details).
Prevent the screws, cables and other conductive parts from falling into the VFD.
As leakage current of the VFD during running may exceed 3.5mA, ground properly and ensure
the grounding resistance
is less than 10Ω. The conductivity of PE grounding conductor is the
same with that of the phase conductor (with the same cross sectional area).
R, S and T are the power input terminals, while U, V and W are output motor terminals. Connect
the input power cables and motor cables properly; otherwise, damage to the VFD may occur.
1.4.2 Commissioning and running
Disconnect all power sources applied to the VFD before terminal wiring, and
wait for at least the time designated on the VFD after disconnecting the power
sources.
High voltage presents inside the VFD during running. Do not carry out any
operation on the VFD during running except for keypad setup. For products at
voltage class 4 or 6, the control terminals form extra-low voltage circuits.
Therefore, you need to prevent the control terminals from connecting to
accessible terminals
of other devices.
The VFD may start up by itself when P01.21 (restart after power outage) is set
to 1. Do not get close to the VFD and motor.
The VFD cannot be used as "Emergency-stop device".
The VFD cannot act as an emergency brake for the motor; it is a must to install
mechanical brake device.
During
driving
permanent
magnet
synchronous
motor,
besides
above-mentioned items, the following work must be done before installation
and maintenance.
• Disconnect all the input power sources including main power and control
power.
• Ensure the permanent-magnet synchronous motor has been stopped, and
the voltage on output end of the VFD is lower than 36V.
• After the permanent-magnet synchronous motor is stopped, wait for at least
the time designated on the VFD, and ensure the voltage between "+" and "-"
is lower than 36V.
• During operation, it is a must to ensure the permanent-magnet synchronous
motor cannot run again by the action of external load; it is recommended to
install effective external brake device or disconnect the direct electrical
connection between permanent-magnet synchronous motor and the VFD.
