Chapter 1 Summarize
FC300
1.2.2 Safety Precautions
DANGER indicates an imminently hazardous situation, which, if not avoided, will
result in death or serious injury.
CAUTION indicates a potentially hazardous situation which, if not avoided, can
result in damages to inverter or mechanical systems.
Notice: Based on different situations, “CAUTION” issue may also cause severe consequences.
Please comply with above two grade issues, which are both vital to our individual safety.
DANGER
● Make sure the power is off before wiring.
● Within 10 minutes after turning off AC power supply, there’s high voltage still inside
inverter, which is extremely dangerous. DO NOT touch the electric circuit or any spare part
inside.
●When inverter is under working, DO NOT inspect the spare part or signal on electric
circuit.
● DO NOT dismount or change the inside wiring, electric circuit or spare part by yourself.
● DO NOT operate inverter with a wet had in case of electric shock.
● Inverter ground terminals must be correctly grounded.
● It is prohibited to reassemble or change control board and spare parts, otherwise there
will be dangers such as electric shock, explosion, etc.
● NEVER open inverter cover or touch the spare parts on circuit board when inverter is
power-on. There is high voltage on these parts. Beware of electric shock which results
death!!!
CAUTION
● DO NOT carry out puncture test on the accessories inside the inverter, for they are prone
to be damaged by high voltage.
● NEVER connect the output terminal U.V.W to AC power supply.
● When power is on or has been cut off just for a short while, inverter and braking resistor
stay in high temperature, DO NOT touch them in case of being scalded.
● The voltage on each terminal must comply with the indication on manual, to prevent
crack and damage.
● Inverter main electric board CMOS, IC are prone to be influenced and damaged by static
electricity.
● Only qualified specialized persons are permitted to install, debug and maintain the
inverters.
● Dump the inverters as industrial waste. Burning is not allowed.
● After the inverter being kept aside for long time, inspection and commissioning are
required before using.
● Inverters can be set for high speed running easily. Please check whether the motor and
mechanic properties are competent before revising the settings.
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