IC3600VDAD1 - D/A Converter Board

SPECIFICATIONS

Part No.: IC3600VDAD1
Manufacturer: General Electric
Product Type: D/A Converter Board
Availability: In Stock
Voltage Type: DC
Series: Mark I and Mark II

Functional Description

IC3600VDAD1 is a D/A Converter Board developed by GE Fanuc. It is a part of Mark I and Mark II series. The board converts digital signals into corresponding analog signals, which are essential for controlling and interfacing with various industrial processes that require analog inputs or outputs.

Features

• The card incorporates a 12-bit reversible counter, a D/A converter, and twelve light-emitting diodes (LEDs) that visually indicate the output of the counter.
• The LEDs provide a clear, real-time display of the counter's state, making it easier to monitor and troubleshoot the system.
• The primary functionality of the VDAD board is to convert a digital signal into an analog output that can be used in various industrial applications, such as temperature control, pressure control, and more.

Counter and Logic Operation

The 12-bit reversible counter on the VDAD board is designed to count in both directions, depending on the state of the inputs. A logic 0 on the ENAB (enable) input allows the counter to operate, while the DN/UP (down/up) input controls the direction of counting. When ENAB is at a logic 0 and DN/UP is also at 0, the counter counts up. Conversely, when DN/UP is set to 1, the counter counts down.

The CCP input is a pulse rate signal that sets the speed at which the counter counts. This input is a pulse train that increments or decrements the counter in response to the steering logic of the system. When the counter reaches its maximum or minimum value, the output signals MM1, MM2, and MM3 all output a logic 1, indicating the counter has reached its limits.

D/A Converter and Output Ranges

The VDAD card includes a D/A converter that converts the digital data into an analog voltage. The output voltage range can be adjusted by changing jumper settings on the board:

• Nominal 0 to 8V: This is the default output range when there is no jumper between SJA and SJB.
• Nominal -4V to +4V: This range is achieved when SJA is connected to SJB with a jumper.
• The analog output is provided at SAOUT, which is the amplified output from the D/A converter. This versatility in output ranges allows the board to be used in a wide range of applications, accommodating various control requirements.

Preset Capability and Binary Inputs

The VDAD card also features preset capability, which allows the user to set or clear specific bits in the counter. This is done through the following binary inputs: 1MSB, IB2 to IB12, and the signal load. To preset the counter:

• A logic 1 is applied to the bits that need to be set.
• A logic 0 is applied to the bits that need to be cleared.
• A single-shot signal is applied to the LOAD line to trigger the preset action.
• This functionality ensures that the board can be quickly and efficiently initialized or adjusted for specific system needs.

Applications 

The D/A Converter Board is used in various industrial applications where precise control of analog outputs is needed based on digital inputs. It is commonly employed in systems that require accurate conversion of digital signals into analog voltages, such as in control systems for turbines, engines, and other critical machinery. Its ability to handle both up and down counting operations and its flexible output ranges make it a versatile and reliable component in GE Fanuc's Mark I and Mark II series control systems.

The WOC team is always available to help you with your Mark I and II requirements. For more information, please contact WOC.

Frequently Asked Questions

What is IC3600VDAD1?
It is a D/A Converter Board developed by GE under Mark I and II series.

What is the primary function of the card?
The primary function of the card is to convert digital signals into analog outputs using a 12-bit reversible counter and a D/A converter. This is essential for interfacing with systems that require analog inputs or outputs, such as turbine control systems.

How does the reversible counter work?
The reversible counter on the card counts in both directions. The direction is controlled by the DN/UP input, while the CCP input sets the pulse rate at which the counter counts. When the counter reaches its maximum or minimum value, output signals MM1, MM2, and MM3 indicate this by outputting a logic 1.

What is the purpose of the LED?
Features 12 LEDs that visually indicate the output of the 12-bit counter. These LEDs help operators quickly monitor the state of the counter and provide valuable diagnostic information.