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GD350A series high-performance multifunction VFD
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VFD and avoid physical injury or death. To ensure physical safety, the installation staff should take
mechanical protective measures like wearing safety shoes and working uniforms
Protect the VFD against physical shock or vibration during delivery and installation.
Do not carry the VFD by its front cover only as the cover may fall off.
The installation site must be away from children and other public places.
When the installation site altitude exceeds 1000m, derate by 1% for every increase of 100m; when
the installation site altitude exceeds 3000m, consult local INVT dealer or office.
Use the VFD in proper environment. (For details, see "Installation environment".)
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 10
Ω.
The conductivity of PE grounding conductor is the
same as that of the phase conductor (with the same cross sectional area).
R, S and T are the power input terminals, and 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 levels of 5 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=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 a permanent magnet SM, besides above-mentioned items, the
following work must be done before installation and maintenance:
a) Disconnect all the input power sources including main power and control
power.
b) Ensure the permanent-magnet SM has been stopped, and the voltage on
output end of the VFD is lower than 36V.
c) After the permanent-magnet SM is stopped, wait for at least the time
designated on the VFD, and ensure the voltage b and - is lower
than 36V.