IS220PAICH1B, REV G - Analog I/O Module

SPECIFICATIONS:

Part No: IS220PAICH1B, REV G
Manufacturer: General Electric
Function: Power Supply Board
Series: Mark VIe
Operating temperature: 0 to 60 o C
Input voltage: 125 V
Total Output: 400 W
Total Output Power: 400 W
Output Voltages: +5, ±12, ±15, ±28 V DC
Operating Temperature: 0 to 60°C
Board Size: 6.25 x 4.25 inches
Availability: In Stock
Country of Origin: USA
Manual: GEH-6421l

FUNCTIONAL DESCRIPTION:

IS220PAICH1B, REV G is an Analog I/O Module manufactured and designed by General Electric as part of the Mark VIe Series used in GE distributed turbine control systems. The Analog I/O pack (PAIC) serves as the electrical interface between one or two Ethernet I/O networks and an analog input terminal board. It includes a BPPx processor board and a specialized acquisition board for analog input functions. This I/O pack can handle up to 10 analog inputs: the first eight are configurable for ±5 V or ±10 V, or 4-20 mA current loop inputs, while the remaining two can be set for ±1 mA or 4-20 mA current inputs.

Current loop input terminal resistors are located on the terminal board, with voltage measured across them by the PAIC. The PAICH1 model supports two 0-20 mA current loop outputs, while the PAICH2 model features additional hardware to support up to 0-200 mA on the first output. Input is received via dual RJ-45 Ethernet connectors and three-pin power input, while output is delivered through a DC-37 pin connector that links to the terminal board. Diagnostic indicators are available via LED lights.

INSTALLATION:

• Securely mount the desired terminal board.

• Directly plug the PAIC I/O pack into the terminal board connectors.

• Mechanically secure the I/O pack(s) using the threaded studs adjacent to the Ethernet ports. The studs slide into a mounting bracket specific to the terminal board type.

• The bracket location should be adjusted such that there is no right-angle force applied to the DC-37 pin connector between the I/O pack and the terminal board. The adjustment should only be required once in the service life of the product.

• Plug in one or two Ethernet cables depending on the system configuration. The I/O pack will operate over either port. If dual connections are used, the standard practice is to connect ENETI to the network associated with the R controller.

• Apply power to the I/O pack by plugging in the connector on the side of the pack. It is not necessary to remove power from the cable before plugging it in because the I/O pack has inherent soft-start capability that controls current inrush on power application.

ANALOG INPUT HARDWARE:

Inputs 1-8 can be individually configured as ±5 V, ±10 V, or 4-20 mA scale signals, depending on the input configuration. Inputs 9-10 can only be configured for ±1 mA or 4-20 mA. The terminal board provides a 250 Ω burden resistor when configured for Furrent inputs yielding a 5 V signal at 20 mA. These analog input signals are first passed through a passive, low-pass filter network with a pole at 75.15 Hz. Voltage signal feedback from the analog output circuits and calibration voltages are also sensed by the PAIC analog input section.

ANALOG OUTPUT HARDWARE:

The PAIC includes two 0-20 mA analog outputs capable of 18 V compliance running simplex or TMR. A 14-bit DAC commands a current reference to the current regulator loop in the PAIC that senses current both in the PAIC pack and on the terminal board. In TMR mode, the three current regulators in each PAIC share the commanded current loads among themselves. Analog output status feedback for each output includes:

• Current reference voltage
• Individual current (output current sourced from within the PAIC)
• Total current (as sensed from the terminal board, summed current in TMR mode)

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FREQUENTLY ASKED QUESTIONS:

What is the difference between Analog Input and Analog Output?

An Analog Input module converts continuous analog signals from sensors into digital data for processing, while an Analog Output module converts digital signals from controllers into continuous analog signals to control actuators.

How does an Analog I/O module work?

An Analog I/O module works by converting analog signals to digital using an ADC for inputs, and converting digital signals to analog using a DAC for outputs, enabling communication between sensors, controllers, and actuators.

What types of signals do Analog I/O modules handle?

Analog I/O modules typically handle voltage signals (e.g., 0-10V), current signals (e.g., 4-20mA), and resistance-based signals from sensors like RTDs or thermocouples, depending on the application.