User Manual
EM303B General Purpose Inverter
6
After Power-on
Danger
1.
Do not touch the inverter and its peripheral circuits with wet hands. Rick of electrical
hazard.
2.
Do not touch any input/output terminals of inverter with bare hands. Rick of electrical
hazard.
3.
After power is on at the first time, inverter will detect external circuit automatically.
Meanwhile, do not touch wiring terminals U, V, and W of inverter, or wiring terminal of
motor with bare hands. Rick of electrical hazard.
Danger
1.
If autotuning is required, be careful of personal injury when motor is running. Risk of
accident.
2.
Do not change the defaults of parameters. Risk of devices damage.
Trial Operation
Danger
1.
Only after the front cover is installed, power can be turned on. Never take off the front
cover when power is on.
An electric shock may occur.
2.
Do not come close to the machine at power failure if fault reset function is active. The
inverter will restart automatically when power is on.
An injury may occur.
3.
Install an emergency switch for a quick brake in case of abnormal conditions. (
STOP
RESET
is
only enabled in keypad control mode.
)
An injury may occur.
Caution
1.
Never touch braking resistor. It will be very hot and with high-voltage when running.
Otherwise, an electric shock and a burn injury may occur.
2.
Reconfirm the motor and machine are within the applicable ranges before starting
operation.
Otherwise, an injury may occur.
3.
Do not check signals while the inverter is running.
Otherwise, the inverter will be damaged.
4.
Be careful when editing inverter settings. The inverter is in factory default.
Otherwise, the inverter will be damaged.