BENSHAW Rsi S Series, Инструкция по эксплуатации

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Installing the Inverter
24
7.5HP~ 10HP (5.5
––––
7.5kW) 3-phase
Power Terminal Labels and Descriptions
Terminal Labels Name Description
R(L1)/S(L2)/T(L3) AC power input terminal Main supply AC power connections.
P2(+)/N(-) DC link terminal DC voltage terminals.
P1(+)/P2(+) DC reactor terminal
DC reactor wiring connection. (When you
use the DC reactor, must remove short-
bar)
P2(+)/B Brake resistor terminals Brake resistor wiring connection.
U/V/W Motor output terminals
3-phase induction motor wiring
connections.
•
Do not use 3 core cables to connect a remotely located motor to the inverter
.
•
When you operating Brake resistor, the motor may vibrate under the Flux braking
operation. In this case, turn off the Flux braking(Pr.50).
•
Make sure that the total cable length does not exceed 665ft (202m). For inverters < =
4.0kW capacity, ensure that the total cable length does not exceed 165ft (50m).
•
Long cable runs can cause reduced motor torque in low frequency applications due to
voltage drop. Long cable runs also increase a circuit’s susceptibility to stray capacitance and
may trigger over-current protection devices or result in malfunction of equipment
connected to the inverter.
•
Voltage drop is calculated by using the following formula:
Voltage Drop (V) = [
√3
X cable resistance (m
Ω
/m) X cable length (m) X current(A)] / 1000
Use cables with the largest possible cross-sectional area to ensure that voltage drop is
minimized over long cable runs. Lowering the carrier frequency and installing a micro surge
filter may also help to reduce voltage drop.
Allowed Carrier Frequency < 15 kHz < 5 kHz < 2.5 kHz
3-phase AC input Motor