SANCH S900 Series, Руководство пользователя

Страница: 12 / 79

10
2.5 Application and description for ambient equipments
Power supply: Power supply:

Make sure voltage class is correct, otherwise inverter may
be damaged.

A no fuse breaker (air circuit breaker) shall be provided
between AC supply and inverter.
No fuse Breaker No fuse Breaker:

Circuit breaker which complies with rated voltage and
current of inverter shall be applied as ON/OFF control for
inverter. And it shall also be protective to the inverter.

Never use circuit breaker as ON/OFF switch for inverter.
Magnetic Contactor Leakage Breaker

A leakage breaker shall be installed to prevent
mal-functioning and to ensure the safety of operators; To
prevent the mal functions, those of which the sensitivity
current above 200mA and action time above 0.1 sec shall
be applied.
Power Improving AC
Electric Reactor Magnetic Contactor

Inverters can be used without a magnetic contactor (MC)
installed at the power supply side. However, when used
for external control or automatically restart after power off,
or when braking control is used, a magnetic contactor
shall be applied.

Do not use the magnetic contactor as RUN/STOP switch
for inverter.
Input side Noise Filter Power Improving AC Electric Reactor

When the output capacity is greater than 500KVA or
enter-wire electricity capacity acts, the instant jump of
voltage or current will be produced, resulting to damage
the internal circuit. So it is recommended that an AC
electric reactor is installed additionally to improve function
factors and decrease the power harmonic. The wiring
distance is within 10m.
S900 Inverter Input side Noise Filter

The Input side Noise Filter must be applied if inverter has
electronic induction load around.
Zero Phase Noise
Filter Inverter

Input Power supply terminals R/L1, S/L2 and T/L3 can be
connected without phase sequence.

Connect output terminals U/T1, V/T2 and W/T3 to U/T1,
V/T2 and W/T3.of motors, if the inverter is in forward run
reference, while motor reverse runs, change any two of
U/T1, V/T2 or W/T3

Never connect U, V, W to AC Power supply otherwise
inverter may be damaged.

Grounding terminals shall be grounded correctly.
Category
Ⅲ G rounding: below 100Ω
Special grounding: below
10Ω.
Three Phase Squirrel
Cage Motor Zero Phase Noise Filter

If specialized noise filters are fit at inverter output side,
radiation interference and induction noise shall be
decreased.