Emheater EM12 Series, Руководство пользователя

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EM12 User’s Manual 1. Safety Information and Precautions
1
1. Safety Information and Precautions
In this manual, the notices are graded based on the degree of danger:
Danger
Indicates that failure to comply with the notice will result in severe personal injury or
even death.
Warning
Indicates that failure to comply with the notice will result in personal injury or
property damage.
Read this manual carefully so that you have a thorough understanding. Installation, commissioning or
maintenance may be performed in conjunction with this chapter. EMHEATER will assume no liability or
responsibility for any injury or loss caused by improper operation.
1.1 Safety Information
Before
installation
Danger

Do not use damaged or missing components frequency inverter. Failure to
comply will result in personal injury.

Please use the electric motor with upper B insulation class. Failure to comply
will result in personal injury.
During
installation
Danger

Install the frequency inverter on incombustible objects such as metal, and keep it
away from combustible materials. Failure to comply may result in a fire.
Warning

When two frequency inverters are laid in the same cabinet, arrange the
installation positions properly to ensure the enough cooling effect.

Do not drop wire residue or screw into the frequency inverter. Failure to comply
will result in damage to the frequency inverter.
Wiring
Danger

Wiring must be performed only by qualified personnel under instructions
described in this manual. Failure to comply may result in unexpected accidents.

A circuit breaker must be used to isolate the power supply and the frequency
inverter. Failure to comply may result in a fire.

Ensure that the power supply is cut off before wiring. Failure to comply may
result in electric shock.

Connect the frequency inverter to ground properly by standard. Failure to
comply may result in electric shock.
Warning

Never connect the power supply cables to the output terminals (U, V, W) of the
Frequency inverter. Failure to comply will result in damage to the frequency
inverter.

Make sure that all the connecting wires comply with the requirement of EMC
and the safety standard in the region. Use wire sizes recommended in the
manual. Failure to comply may result in accidents.

Never connect the braking resistor between the DC bus terminals (P+) and (P-).
Failure to comply may result in a fire.
Before
power-on

Check that the following requirements comply with:
The voltage class of the power supply is consistent with the rated voltage class of