ABB 3BSE004086R1 SDCS-IOB-3 I/O Board

The board SDCS-IOB-3 3BSE004086R1 consists of the 5 analogue inputs, 3 analogue outputs, the galvanically isolated pulse encoder interface, and a current source for temperature measuring devices.

If these boards are in use, they have to be mounted outside the DCS module. They must be mounted in a way that the conductive supports have a good connection to the ground of the installation.

The cable length between X1:/X1: and X2:/X2: is max. 1.7 m and between X1:/X3: is max. 0.5 m because of EMC reasons.

• The analog I/O board SDCS-IOB-3 substitutes the standard analog inputs, standard analog outputs, and standard encoder input on the SDCS-CON-4. This means the analog I/O and the encoder input on the SDCS-CON-4 are no longer available.

• Connector X1 and X2 are used to connect the SDCS-IOB-3 with the SDCS-CON-4 via flat cable.

• To mount the SDCS-IOB-3, use a specially designed card holder including finger protection and screen clamps.

• On this slide, the connection diagram of the SDCS-IOB-3 board will be explained.

• Connector X3 provides s analog encoder connection as well as an analog input connection for analog input 1 to analog input 4.

• Scaling and adaptations are done via jumpers on the IOB-3 board.

• Connector X4 provides an analog output connection for:

   o Analog outputs 1 and 2 and actual motor current. This output is used to connect an oscilloscope for measurements.

   o Voltage source plus-minus 10 volts DC. This is typically used to connect potentiometers to give speed reference to an analog input.

   o Current source with 1.5 Milliamps to 5 Milliamps. This is typically used to supply PTC's especially PT100 temperature sensors, to measure motor temperature.

 • Connector X5 provides an encoder connection for single-ended and differential encoders

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