Commissioning And Running - INVT Goodrive350-19 Series Operation Manual

Goodrive350-19 series VFD for crane

Use the VFD in proper environments. (For details, see section 4.2.1 Installation environment.)
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Prevent the screws, cables and other conductive parts from falling into the VFD.
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As VFD leakage current caused during running may exceed 3.5mA, apply reliable grounding and
ensure the ground resistance is less than 10Ω. The PE ground conductor and phase conductor
have equal conductivity capability. For the models of 30kW and higher, the cross sectional area of
the PE ground conductor can be slightly less than the recommended area.
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R, S and T are the power input terminals, and U, V and W are the 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

 Cut off all power supplies connected to the VFD before terminal wiring, and wait
for at least the time designated on the VFD after disconnecting the power
supplies.
 High voltage presents inside the VFD during running. Do not carry out any
operation on the VFD during running except for keypad setup. For 3PH AC 660V
VFD models, the control terminals form extra-low voltage (ELV) 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 is set to 1 (restart after power off).
Do not get close to the VFD and motor.
 The VFD cannot be used as an "Emergency-stop device".
 The VFD cannot act as an emergency brake for the motor; it is a must to install a
mechanical braking device.
 During driving a permanent magnet synchronous motor (SM), besides
above-mentioned items, the following work must be done before installation and
maintenance:
a) All input power supplies have been disconnected, including the main power
b) The permanent-magnet SM has been stopped, and the voltage on output
c) After the permanent-magnet SM has stopped, wait for at least the time
d) During operation, it is a must to ensure the permanent-magnet SM cannot
and control power.
end of the VFD is lower than 36V.
designated on the VFD, and ensure the voltage between + and - is lower
than 36V.
run again by the action of external load; it is recommended to install an
effective external braking device or cut off the direct electrical connection
between the permanent-magnet SM and the VFD.
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Safety precautions