Goodrive270 series VFD for fan and pump Safety precautions
-3-
and avoid physical injury or death. To ensure personal safety, take mechanical protective
measures like wearing safety shoes and working uniforms.
îš— Protect the VFD against physical shock or vibration during the delivery and installation.
îš— Do not carry the VFD only by its front cover as the cover may fall off.
îš— The installation site must be away from children and other public places.
îš— When the altitude exceeds 1000m, derate by 1% for every increase of 100m. When the altitude
exceeds 3000m, consult the local INVT dealer or office for details.
îš— Use the VFD in proper environments. (For details, see 4.2.1 Installation environment.)
îš— Prevent the screws, cables and other conductive parts from falling into the VFD.
îš— As leakage current of the VFD during running may exceed 3.5mA, ground properly and ensure
the grounding reVLVWDQFHLV OHVV WKDQ 7KH FRQGXFWLYLW\RI 3(JURXQGLQJFRQGXFWRULVWKH
same as that of the phase conductor (with the same cross sectional area).
îš— 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
îš— 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.
îš— 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.
îš— The VFD may start up by itself when power-off restart is enabled (P01.21=1).
Do not get close to the VFD and motor.
îš— The VFD cannot be used as an "Emergency-stop device".
îš— The VFD cannot act as an emergency brake for the motor; it is a must to install
a mechanical braking device.
îš— During driving a permanent magnet SM, besides above-mentioned items, the
following work must be done before installation and maintenance:
9 All input power supplies have been disconnected, including the main power
and control power.
9 The permanent-magnet SM has been stopped, and the voltage on output
end of the VFD is lower than 36V.
9 After the permanent-magnet SM has stopped, wait for at least the time
designated on the VFD, and ensure the voltage between + and - is lower
To Next Page
Loading...
Need help?
General
