Goodrive350 IP55 High-ingress Protection Series VFD
Safety Precautions
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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. It must be noted
that the control terminal of EV1000 inverter is 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, 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 "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.
1. Disconnect all the input power sources including main power and control
power.
2. Ensure the permanent-magnet synchronous motor has been stopped, and 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 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.
1.4.3 Maintenance and component replacement
Only well-trained and qualified professionals are allowed to perform
maintenance, inspection, and component replacement on the VFD.
Disconnect all the 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.
Take measures to prevent screws, cables and other conductive matters from
falling into the VFD during maintenance and component replacement.
Note:
Use proper torque to tighten the screws.
