⚫ 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 while running. Do not carry out any operation on
the VFD while it is running except for keypad setup. It must be noted that the control
terminal of EV1000 inverter is an ELV (Extra Low Voltage) circuit, which cannot be
connected directly to the accessible terminals of other devices if no protective isolation
measure is taken. For instance, the RS485 terminal of the inverter can be connected to
RS232 interface of the PC only after a converter with protective isolation is connected
between them.
⚫ The VFD may start up by itself when P01.21 (restart after power cut) is set to 1. 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 brake device.
⚫ During driving permanent magnet synchronous motor, besides above-mentioned items,
the following work must be done before installation and maintenance.
1. Disconnect all input power sources including main power and control power.
2. Ensure that the permanent-magnet synchronous motor has been stopped, and that
the voltage on output end of the VFD is lower than 36V.
3. 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.
4. 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 an
effective external brake device or disconnect the direct electrical connection between
permanent-magnet synchronous motor and the VFD.
Note:
⚫ Do not switch on or switch off input power sources of the VFD frequently.
⚫ For VFDs that have been stored for a long time, set the capacitance and carry out inspection and
pilot run on the VFD before use.
⚫ Close the front cover before running; otherwise electric shock may occur.
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