WEG SSW-06.0205 User Manual page 21

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 Programmable protections against line undervoltage and
overvoltage, and line phase imbalance;
 Thermal class may be programmed up to Class 45 for large motors.
The thermal memory is saved on EEPROM even in case of an
electronic supply fault.
Special functions such as:
 Display of the number of hours, running time, supply voltage phase,
motor current per phase, motor current in amperes, motor current
as a % of the Soft-Starter SSW-06 rated current and the rated current
as a % of the motor current, status of the digital inputs and outputs;
 Setting sequence after reset to factory default;
 Very flexible selection of start/stop control type, enabling the following
selections: Voltage Ramp, Constant Current Limiting or by Ramp,
Pump Control and Constant, Linear or Quadratic Torque Control;
 Totally flexible Torque Control providing very high performance for
the most demanding applications;
 Possibility of using all digital inputs, digital outputs and analog
outputs as remote PLC via Fieldbus communication;
 Possibility of monitoring the power supply voltage measurements in
a PLC network via Fieldbus communication.
Control Hardware:
 Keypad, referred to as the Human Machine Interface (HMI) with
Liquid-Crystal Display and easy programming. Fault conditions can
be displayed in several languages.
 32Bit Microprocessor calculates the True rms voltage and current;
 Measurement of the voltage and current in the three phases;
 Isolated digital input for the motor PTC;
 Fieldbus boards and RS-485 as options.
Power Hardware:
 Compact size;
 Power Supply input and output connections:
Models 85A to 820A - Input through the top and output through the
bottom of the SSW-06.Models 950A to 1400A - Input and output
through the bottom.
 Easy assembly and maintenance services;
 Measurements of heat sink temperature in models 255A to 820A
through two thermostats:One thermostat to switch-on the internal
fans and the other to monitor over-heating.
 Soft-Starter SSW-06 can be coupled to the motor by a standard
connection or an inside delta motor connection without requiring
optional devices.
Incorporated By-pass contactor makes the Soft-Starter SSW- 06
(85A to 820A):
 More resistant to supply line oscillations after starting;
 Save energy that would be dissipated through the thyristors after
the start, thus reducing the number of fans required for control panel
cooling.
CHAPTER 2 - GENERAL INFORMATION
21