IS400JPDAG1A - AC Power Distribution Card

SPECIFICATIONS

Part No.: IS400JPDAG1A
Manufacturer: General Electric
Manual: GEH-6721D
Mounting: DIN-rail mount
Size: 15.875 cm high x 10.795 cm wide
Temperature: -30 to +65 oC
Output fuses: Four
Inputs: One 3-pin connection for input power
Outputs Four 3-pin connections
Availability: In Stock
Country of Manufacture: United States (USA)

Functional Description

IS400JPDAG1A is an AC Power Distribution Card developed by GE. It is a part of Mark VIe control system. It is designed to manage AC power distribution, power isolation, and branch circuit protection within the control or I/O functions that require AC power in an industrial setting. Its versatility makes it ideal for various applications, including AC relay and solenoid control power, ignition transformer excitation, and contact wetting. Equipped with two 3-Pin Mate-N-Lok connectors. One of these connectors is designed to receive AC input power, while the other can be utilized to distribute AC power to another board in a daisy chain configuration. In this setup, it is essential to ground the low or neutral side of the input power for proper operation and safety.

Product Features

• AC Power Distribution: Acts as a central hub for AC power distribution, efficiently supplying power to multiple control or I/O functions that necessitate AC power sources. It takes the incoming AC power supply and appropriately routes it to the respective outputs, ensuring a stable and reliable power distribution network.
• Power Isolation: Each output is equipped with a power isolation switch, which serves as an essential safety feature. These switches allow individual control or I/O functions to be isolated from the main power supply when required. This isolation prevents potential electrical hazards during maintenance, troubleshooting, or when dealing with faulty equipment.
• Branch Circuit Protection: Safety is a paramount consideration in industrial environments, and the board incorporates fuses for each output. These fuses act as branch circuit protection, safeguarding the connected control or I/O functions from overcurrent or short-circuit conditions. In the event of a fault, the fuse will blow, interrupting the power supply and preventing damage to the equipment.
• Indicator Lamps: To provide a clear visual indication of the presence of output voltage, each output on the board is equipped with an indicator lamp. These lamps illuminate when AC power is present, allowing operators and maintenance personnel to easily verify the status of the connected devices without the need for additional testing equipment.
• Typical Applications: Used in various scenarios that require AC power distribution and control. Some typical applications include:
• AC Relay and Solenoid Control Power: The board efficiently supplies power to AC relays and solenoids used in various industrial control systems. These components rely on stable and accurate power sources to ensure proper functioning.
• Ignition Transformer Excitation: In systems that utilize ignition transformers, the board provides the necessary excitation power to initiate the ignition process, ensuring reliable operation in combustion systems such as gas turbines or industrial furnaces.
• Contact Wetting: In relay-based circuits, it facilitates contact wetting, a process that ensures the proper establishment of electrical contacts, reducing resistance and enhancing the efficiency and reliability of relay-based switching operations.

Installation

• Designed for easy installation and secure mounting. It comes with a plastic holder specifically tailored to fit on a vertical DIN-rail, ensuring a stable and organized arrangement within the control system cabinet.
• The power input and output cables are equipped with three-position Mate-N-Lok connectors, making them easily connectable and providing a secure and reliable electrical interface. For the exact cable destinations and connections, users are advised to refer to the circuit diagram provided by the manufacturer or the system documentation.
• During installation, particular attention should be given to TB1, which serves as the chassis ground connection. It is vital to establish a proper ground connection from TB1 to the system's protective earth (PE). This connection creates a robust and safe ground path for the metal switch bodies present in the system, ensuring that any potential electrical faults or leakage currents are effectively diverted to ground, minimizing the risk of electrical hazards.

Configuration

• Designed to facilitate seamless power distribution and connection within the control system. To ensure a secure and reliable electrical interface, both the power input and output cables are equipped with three-position Mate-N-Lok connectors. These connectors make it easy to establish connections, providing a quick and efficient means of distributing power to various control or I/O functions.
• For precise cable destinations and connections, users are encouraged to consult the circuit diagram provided by the manufacturer or the comprehensive system documentation. The circuit diagram serves as a valuable reference, offering detailed information on how to properly connect the power input and output cables to their respective terminals.
• One crucial aspect of the installation process involves TB1, which serves as the chassis ground connection. It is imperative to establish a robust ground connection from TB1 to the system's protective earth (PE). This ground lead ensures that chassis is effectively grounded, creating a safe path for any stray electrical currents or potential fault currents to dissipate harmlessly into the earth.
• The presence of metal switch bodies within the system further underscores the significance of proper grounding. When grounded, it provides a reliable and low-impedance ground path for these metal switch bodies. This helps to prevent the build-up of static charges, minimize electrical interference, and mitigate the risk of electrical shocks or hazards in the control system.
• By meticulously following the grounding guidelines during installation, the performance, as well as the overall safety of the control system, is significantly enhanced. The three-position Mate-N-Lok connectors offer a convenient and secure means of connecting power cables, simplifying the installation process. Consulting the circuit diagram ensures accurate cable destinations and connections, while the establishment of a proper ground lead from TB1 to the system PE guarantees the safe operation of the JPDA and the protection of personnel and equipment from potential electrical issues.

Inputs

• The power distribution system comprises multiple JPDA (presumably a component or system) boards drawing power from a centralized JPDM Main Power Distribution Module. This module supplies power at either 120 volts root mean square (V rms) or 240 V rms, supporting both 50Hz and 60Hz frequency inputs.
• To facilitate power connectivity, two 3-pin M&L connectors are provided. One of these connectors serves as the recipient for the AC input power, while the other connector functions to distribute AC power to subsequent JPDA boards in a daisy-chain configuration. In this setup, it is the standard practice to have the low or neutral side of the input power grounded, ensuring proper electrical safety measures.

Outputs

• Each JPDA board includes four distinct output circuits, each equipped with 3-pin M and L connectors. These output circuits are outfitted with branch circuit protection mechanisms to safeguard against potential electrical faults or overloads. Additionally, within each output circuit, a pair of isolation contacts for the non-grounded line is integrated, enhancing safety protocols and preventing electrical interference.
• Moreover, for visual indication, a green lamp is incorporated into each output circuit. This lamp serves the purpose of visibly indicating the presence of voltage across the output terminals. This feature is crucial in providing a quick visual assessment of power availability, aiding in system monitoring and maintenance.

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Frequently Asked Questions

What is IS400JPDAG1A?
It is an AC Power Distribution Card developed by GE

How does the card indicate the presence of output voltage?
To provide visual indication, each output on the card is equipped with an indicator lamp. These lamps illuminate when AC power is present, allowing operators and maintenance personnel to easily verify the status of the connected devices without the need for additional testing equipment.

How are the power input and output connections made?
It is equipped with two 3-Pin Mate-N-Lok connectors. One connector receives AC input power, while the other can be used to distribute AC power to another board in a daisy chain configuration. Proper grounding of the low or neutral side of the input power is essential for safe and optimal operation.

Can you explain the significance of contact wetting in relay-based circuits?
Contact wetting is a process facilitated by the module in relay-based circuits. It ensures the proper establishment of electrical contacts, reducing resistance and improving the efficiency and reliability of relay-based switching operations. This feature enhances the overall performance of the control system and minimizes the risk of malfunction due to poor contact connections.