Section 1: Conditions of safe operation
1.2. Basic rules
•
Don’t connect the supply voltage to the U, V, W output terminals.
•
Don’t measure the voltage endurance of any unit devices.
•
It is necessary to disconnect cables from the frequency converter to
measure their insulation.
•
Don’t repair the frequency converter yourself. All repairs can only be
carried out by the manufacturer's authorized service centre. Any attempt
at unauthorised repairs will void your warranty.
•
Don't connect any capacitor banks to the output (motor) cables to
improve cos φ.
•
The voltage at the output terminals U, V, W should be measured with an
electromagnetic voltmeter (
measurement with a digital voltmeter without
a low-pass filter is incorrect).
•
The frequency converter is not designed to operate with periodically
switched on/off supply voltage. Don't turn on the power supply voltage
more than once every 5 minutes because this will damage the frequency
converter.
1.3. Operation list
The operations applied at installation and the first start-up of the
frequency converter
✔
After unpacking the frequency converter, it is necessary to check up
visually presence of damages which could arise during transport.
✔
Check whether the delivery is in accordance with the order - check the
nameplate.
✔
Check up the correspondence between the conditions in which the
frequency converter will be used and conditions of an environment for
which it is designed (section 1.5).
✔
Installation of the frequency converter should be made due to the
principles of safety and EMC rules listed in section 2.
✔
Perform the configuration of frequency converter in accordance with
sections 4 and 5.
1.4. Disposal considerations
Equipment containing electrical and electronic components can
not be removed into municipal waste containers. Such equip-
ment must be separated from other wastes and attached to
electrical and electronic waste in accordance with applicable
local regulations.
10
TWERD Power Electronics
