Power Electronics SD300 Series User Manual

SD300
POWER ELECTRONICS
70
POWER CONNECTIONS
Motor Thermal Protection
The drive includes a motor thermal protection that, based on the motor
performance parameters, mathematically calculates the thermal reservoir
of the motor. When this reservoir is reduced below the limits, the drive
automatically stops the motor. The thermal sensitivity is configured in the
programming parameters. For further information consult Software and
programming manual.
Others
The drive can implement additional motor and drive protections such as
power-loss ride through, automatic fly restart, high and low input and
output voltage, pump overload and underload... For further information,
consult Software and Programming manual.
Dynamic Braking Resistors
CAUTION
Do not touch the braking resistor during the drive operation. It could
be very hot (over 150ºC).
A dynamic brake controls the regenerated energy. The dynamic brake
activates an IGBT to discharge the DC bus over external resistors when the
DC voltage overpasses a pre-set value.
SD300 drives include a built-in dynamic brake as standard. The user only
has to connect a resistor between terminals P2 and B of the power board
(see “Power Terminals” section).
Reference
Input
voltage (V)
Drive
capacity
(kW)
100% Braking
150% Braking
Ω
W*
Ω
W*
SD300312, SD300312F,
SD300322, SD300326
230
0.4
400
50
300
100
SD300612, SD300612F,
SD300622, SD300526
0.75
200
100
150
150
SD300912, SD300912F,
SD300922, SD300826
1.5
100
200
60
300

Power Electronics SD300 Series Specifications

General

Brand	Power Electronics
Model	SD300 Series
Category	Inverter
Language	English