IS220PGENH1A, REV B - Turbine-Generator Monitor Module

SPECIFICATIONS:

Part Number: IS220PGENH1A, REV B
Manufacturer: General Electric
Series: Mark VIe
Number of Channels: 6
Analog Inputs: +/-5 V dc
Current Inputs: 0 to 1 A rms
Input converter resolution: 16-bit
Common mode voltage range: +5V
Technology: Surface Mount
Operating Temperature: -30 to 65 ° C
Size: 8.26 cm high x 4.19 cm
Availability: In Stock
Product of Origin: United States
Manual: GEH-6721G

FUNCTIONAL DESCRIPTION:

IS220PGENH1A, REV B is a Turbine-Generator Monitor Module manufactured and designed by General Electric as part of the Mark VIe Series used in distributed control systems. The Mark VIe Turbine-Generator Monitor pack (PGEN) provides the electrical interface between one I/O Ethernet network and the TGNA turbine-generator terminal board. The pack contains a processor board common to all Mark VIe distributed I/O packs and an acquisition board. The pack uses 3 analog channels to monitor turbine mechanical power from voltage or 4-20 mA sensors. Each phase of the generator armature current is monitored using a current transformer input. Input to the pack is through dual RJ45 Ethernet connectors and a 3-pin power input. The PGEN supports single Ethernet networks for simplex or TMR applications. Output is through a DC-37 pin connector that connects directly with the associated terminal board connector. Visual diagnostics are provided through indicator LEDs.

INSTALLATION INSTRUCTIONS FOR PGEN I/O PACK:

• Securely mount the desired terminal board.
• Directly plug one PGEN I/O pack for simplex or three PGEN I/O packs for TMR into the terminal board connectors.
• Mechanically secure the packs 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 pack and the terminal board. The adjustment should only be required once in the life of the product.
• Plug in one Ethernet cable only. The pack operates over either port.
• Apply power to the pack by plugging in the connector on the side of the pack. It is not necessary to insert this connector with the power removed from the cable as the I/O pack has inherent soft-start capability that controls current inrush on power application.
• Configure the I/O pack as necessary.

OPERATION:

The processor board connects to an acquisition board specific to the I/O pack function. Upon application of input power, the soft-start circuit ramps up the voltage available on the processor board. The local power supplies are sequenced on, and the processor reset is removed. The processor completes self-test routines and then loads application code specific to the I/O pack type from flash memory. The application code reads board ID information to ensure the correct matching of application code, acquisition board, and terminal board. With a good match, the processor attempts to establish Ethernet communications, starting with request of a network address. The address request uses the industry standard dynamic host configuration protocol (DHCP) and the unique identification read from the terminal board. After Ethernet initialization, the processor programs the on-board logic, runs the application, and enables the acquisition board to begin operation. The processor board in the pack is common to all Mark VIe Ethernet I/O packs. It contains the following:

• High-speed processor with RAM and flash memory
• Two fully independent 10/100 Ethernet ports with connectors
• Hardware watchdog timer and reset circuit
• Local ambient temperature sensor
• Status indication LEDs
• Electronic ID and the ability to read IDs on other boards
• Substantial programmable logic supporting the acquisition board
• Input power connector with soft start/current limiter
• Local power supplies, including sequencing and monitoring

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FREQUENTLY ASKED QUESTIONS:

What type of connector does the PGEN I/O Pack use to interface with the terminal board?

The PGEN I/O Pack interfaces with the terminal board using a DC-37 pin connector, which ensures reliable signal and power connections. Care must be taken to avoid angular force during installation to prevent damage.

What is the function of the threaded studs adjacent to the Ethernet ports?

The threaded studs provide mechanical stabilization. They slide into a dedicated mounting bracket on the terminal board assembly to securely fix the I/O pack and maintain proper alignment with the DC-37 connector.

What is the soft-start feature in the PGEN I/O Pack?

The soft-start capability controls inrush current when power is applied to the I/O pack. This prevents voltage dips or electrical stress on the power supply and allows hot-plugging the power connector safely.