SPECIFICATIONS
Part No.: IS230TRLYH1F
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Temperature Operating: 0 to 60 oC
Size: 17.8 cm wide x 33.02 cm high
Temperature -30 to + 65oC
Technology: Surface-mount
Number of output relay channels: 12
Voltage monitor, maximum response delay: 60 ms typical
Product Type: Relay Output with TMR contact voting terminal board
Availability: In Stock
Series: Mark VIe
Functional Description
IS230TRLYH1F is a Relay Output with TMR contact voting terminal board developed by GE. It is a part of Mark VIe series. The Relay Output with TMR contact voting terminal board is designed to provide 12 contact-voted relay outputs, ensuring high reliability through the use of Triple Modular Redundancy (TMR). This board contains a total of 36 sealed relays, divided into three TMR sections (R, S, and T), with each section holding 12 relays. These relays work together to form a voted Form A (Normally Open) contact, enhancing fault tolerance.
Key features
- Contact-Voted Outputs: The relay contacts from the R, S, and T sections are combined to form a single voted Form A (NO) contact, which improves reliability and ensures accurate performance.
- Voltage Compatibility: The board supports both 24/125 V DC and 115 V AC applications, making it versatile for different power environments.
- Relay Configuration: A total of 36 relays (12 per TMR section) ensure that even if one relay fails, the others can continue to maintain the contact state. However, the terminal board does not support simplex arrangements, meaning it is designed specifically for TMR configurations to achieve higher reliability.
- Power Distribution: It does not come with built-in power distribution capabilities. Nevertheless, there is an optional power distribution board, the IS200WPDFH1A, which can be added to the setup. This optional board allows for:
- Standard 125 V DC or 115 V AC power sources.
- An optional 24 V DC source.
- Individual fuses for field solenoid power, enhancing the safety and reliability of the power supply to the relay outputs.
Installation
- Connect the wires for the 12 solenoids directly to two I/O terminal blocks on the TRLYH1F terminal board. Each terminal block accommodates 12 solenoid connections, totaling 24 terminals between the two blocks. The terminals accept wire sizes up to #12 AWG, ensuring compatibility with a wide range of wire gauges. Each terminal block is secured with two screws to ensure stable and reliable connections. Make sure the screws are tightened properly to prevent any loose connections that could cause malfunction or intermittent issues.
- A shield termination strip is located immediately to the left side of each terminal block. This strip is attached to the chassis ground, providing a secure grounding point for shielded cables, which helps in reducing electrical noise and interference.
- Solenoid power for outputs 1-12 is available if the power distribution daughterboard is used. This optional board can supply standard 125 V DC or 115 V AC, or an optional 24 V DC source, with individual fuses for each solenoid. This configuration provides a centralized and organized power distribution solution, enhancing safety and ease of maintenance.
- Alternatively, solenoid power can be wired directly to the terminal block if the WPDF daughterboard is not used. This method allows for flexible power connections, though it may require careful management to ensure all connections are secure and properly rated for the application.
Operation
- Power Supply for Relay Coils and Logic: The 28 V DC power required for the terminal board relay coils and logic is supplied by three I/O processors connected at JR1, JS1, and JT1. These connections ensure a reliable power source for the operation of the relay coils and the logic circuits that control them. The same type of relays is used for both AC and DC voltage applications, as detailed in the Specifications section. Both H1F and H2F models utilize the same relays but may have different circuit configurations.
- Relay Drivers and Frame Rate Operation: Relay drivers are mounted directly on the terminal board. These drivers are responsible for activating the relays according to the frame rate, which is the frequency at which the system updates the status of the relays. This ensures that the relays operate with precise timing and coordination, essential for maintaining the integrity and reliability of the control system.
- Failsafe Feature: The relay outputs of the terminal board are designed with a failsafe feature. This feature enhances the reliability and safety of the system by automatically de-energizing the corresponding relay when certain fault conditions are detected. Specifically, if a cable is unplugged or if communication with the associated I/O board or I/O pack is lost, the failsafe mechanism votes to de-energize the relay. This voting mechanism involves the R, S, and T sections, ensuring that a consensus is reached before de-energizing, which prevents false triggering and maintains system stability.
The WOC team is always available to help you with your Mark VIe requirements. For more information, please contact WOC.
Frequently Asked Questions
What is IS230TRLYH1F?
It is a Relay Output with TMR contact voting terminal board developed by GE under the Mark VIe series.
How is the voltage to each relay coil monitored?
The voltage to each relay coil is monitored and checked against the command at the frame rate. If there is no agreement for two consecutive checks, an alarm is latched to indicate a discrepancy.
What happens if the voltage across a solenoid power supply goes below 16 V AC/DC?
If the voltage across any solenoid power supply goes below 16 V AC/DC, an alarm is generated to indicate a potential power issue.
What triggers a hardware incompatibility fault?
A hardware incompatibility fault is created when the ID chip read by the I/O processor encounters a mismatch, indicating that the connected hardware is not compatible.
