W211 Power controllers, from 1kw to 400kw

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Conduction inhibition input
Overcurrent protection (DE option)
Detection of partial load failure (RPC option)
SCR diagnosis circuit and complete load failure (DTC option)
Input control from Vdc and Vac logic signal
Zero crossing switching of mains voltage
High capacity anti-parallel SCR double thyristor
LED status indicators
MOV protections (varistor)
DIN rail or panel mounting (depending on version)

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Wattcor W211 line offers a wide range of solid state power controllers with "zero crossing" switching for resistive loads with current ratings up to 600A and 660Vac nominal voltages.
The models of the W211 series accept Vdc and Vac logic controls. The conduction is activated by the control signal at the first zero crossing of the load power voltage. Switching off occurs by the first zero crossing of the load current after disabling the control signal.
The control of three-phase loads can be by two or three W211 in series and fired in parallel. Each model is equipped with a logic input to disable the solid state relay/power controller and eventually break off power supply.
Different options are available for the more critical applications, such as the "load control" (RPC option) which detects and indicates partial load failure interruption/cut-off, with a LED on the faceplate, and a relay alarm output. The DTC option allows the control of a possible SCR short-circuit or the complete current failure in the load.
A further safety option is represented by the "electronic cut-off" circuit, (DE option), a device protecting the power element against a momentary excess current higher than a selected value, corresponding to approx. 13 times the nominal current of the solid state power controller. The alarm condition disables the power supply, activates an alarm relay (in common with RPC option) and allows the instrument resetting through a front button.
The WATTCOR W211 series are designed to guarantee nominal current and voltage values at 50°C ambient temperature, with a working temperature range from -5°C up to 60°C. 250A and 600A units are supplied with internal fuse and digital output for the fuse status. Signal connections are made via "plug-in" connectors to enable easy wiring.
The instrument can be DIN rail or panel mounted (from 250 up to 600A current ratings, panel mounting only).

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DataSheet

W211 datasheet

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Brochure (SSR and Solid State Relays)

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Installation and Operation Manual

Solution

Metalworking

GEFRAN SOLUTIONS FOR METALWORKING

GEFRAN offers a wide range of automation components for metalwork plants and machines, from melting to heat treatments, from deformation to surface finishing to cutting systems:
- displacement, force, pressure transducers for precise positioning of mechanisms (for example, press rollers, tools) and machine parameter control systems
- sensors, controllers, programmers and solid-state actuators for heat control and the running of temperature profiles (for example, in electric or gas furnaces for heat treatment of metals, washing and drying systems)
- level indicators and positioners (for rollers, benders, sanders, etc.) - maximum/minimum alarm units for safety devices
- configurable indicators to display (on the machine or control panel) other parameters such as input/rpm’s, pieces produced, etc.
- phase angle power solid-state relays to control voltage on transformer primaries (for example, in the furnace industry, welding, etc.).
- Gefran-Siei Servo drives for metal sheet cutting lines, including special software application for transversal cutting systems equipped with Feeder or Flying Shear.

» Feeder

FEEDER ROLL
The Feeder Roll is equipped with QL and HQL asynchronous motors (IP54 version) or HQLa asynchronous motors (IP23S version) complete with incremental encoder.
In highly dynamic applications, the Feeder Roll may be equipped with an SBM brushless motor and XVy-EV servo drive.
The motor is powered by an XVyA-EV servo drive that receives the encoder on the metric wheel as well as the motor encoder.
The Feeder control system is fully integrated in the drive
The drive is connected to the machine PLC via CANbus, GDnet, DeviceNet or Modbus.

BLADE FLYWHEEL MOTOR
The Flywheel Motor is powered by an AGy-EV drive. The drive is connected to the machine PLC via CANbus, DeviceNet or Modbus.

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» Flying Shear

CARRIAGE MOTOR
The Carriage is equipped with QL and HQL asynchronous motors (IP54 version) or HQLa asynchronous motors (IP23S version) complete with incremental encoder.
The motor is powered by an XVyA-EV servo drive that receives the encoder on the metric wheel as well as the motor encoder.
In highly dynamic applications, the carriage may be equipped with an SBM brushless motor and XVy-EV servo drive.
The Flying Shear control system is fully integrated in the drive.
The drive is connected to the machine PLC via CANbus, GDnet, DeviceNet or Modbus.

BLADE FLYWHEEL MOTOR
The Flywheel Motor is powered by a drive in the AGy-EV series. The drive is connected to the machine PLC via CANbus, DeviceNet or Modbus.

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