Considerations For Peripheral Equipment - TECO E510s Series Instruction Manual

3.3.5 Considerations for peripheral equipment

Ground
Ground
Ensure that the supply voltage is correct. A molded-case
Power
circuit breaker or fused disconnect must be installed
between the AC source and the inverter
Use a molded-case circuit breaker that conforms to the
rated voltage and current of the inverter.
Do not use the circuit breaker as the run/stop switch for
Circuit
the inverter.
Breaker
Residual Current Circuit Breaker(RCD)
& RCD
Current setting should be 200mA or above and the
operating time at 0.1 second or longer to prevent
malfunctions.
Normally a magnetic contactor is not needed.
A contactor can be used to perform functions such as
Magnetic
external control and auto restart after power failure.
contactor
Do not use the magnetic contactor as the run/stop switch
of the inverter.
When a 200V/400V inverter with rating below 15KW is
AC reactor
connected to a high capacity power source (600KVA or
for power
above) then an AC reactor can be connected for power
quality
factor improvement and reducing harmonics.
improvement
E510s has a built-in filter (Class A/First Environment
Category C2, except for Frame 4)
Input noise
To satisfy the required EMC regulations for your specific
filter
application you may require an additional EMC filter.
Connect the single phase power to Terminals, L1(L) &
L3(N).
Warning! Connecting the input terminals T1, T2, and T3 to
AC input power will damage the inverter.
Output terminals T1, T2, and T3 are connected to U, V, and
W terminals of the motor.
Inverter
To reverse the motor rotation direction just swap any two
wires at terminals T1, T2, and T3.
Ground the Inverter and motor correctly.
Ground Resistance for 200V have to less than 100 Ohms.
Ground Resistance for 400V have to less than 10 Ohms
Three-phase induction motor.
Voltage drop on motor due to long cable can be
calculated, volts drop should be less than 10%.
Motor
The formula of Phase-to-phase voltage drop is
(V) =
line(m)×current×10
3-22
3 ×resistance of wire (Ω/km)×length of
-3