The General Electric IS200VRTDH1/D, also cataloged as the IS200VRTDH1 VME RTD Card, operates as a dedicated hardware component for high-precision temperature signal acquisition and RTD sensor interfacing within Speedtronic Mark VI control systems.

Suffix Breakdown & Model Matrix

The IS200VRTDH1/D utilizes the standard GE VME-based naming convention. The "IS200" identifier denotes the series generation. The "VRTD" nomenclature confirms the module function as a VME-bus compatible Resistance Temperature Detector input card. The "H1" indicates the specific hardware design iteration, while the "/D" revision level defines the specific PCB component layout, firmware compatibility, and channel-to-channel isolation specifications.

Hardware Specifications

Profinet / EtherNet/IP Deterministic Networks

The IS200VRTDH1/D is engineered for integration into high-speed deterministic control racks, providing real-time conversion of analog RTD resistance values into digital data for the VME backplane. The module supports precise I/O density scaling, allowing for multiple sensor inputs per card while maintaining strict signal sampling intervals. Firmware flash compatibility ensures that the card can be updated to support evolving network communication protocols, maintaining millisecond-level determinism required for turbine temperature monitoring and protection logic.

Frequently Asked Questions

Q: Is this VME card compatible with standard 3-wire RTD configurations?

A: Yes. The IS200VRTDH1/D is designed to support standard 3-wire RTD input types, providing excitation current and lead-wire resistance compensation to ensure measurement accuracy.

Q: Can this module be removed from the VME rack while the control system is running?

A: No. Standard Mark VI VME chassis maintenance protocols require the rack to be de-energized or the specific slot to be isolated to prevent backplane bus communication errors or electrical damage during extraction.

Field Installation Guidelines

• Mechanical Seating: Ensure the IS200VRTDH1/D is firmly seated within the VME chassis guides. Engage the upper and lower locking handles until they click, ensuring the P1/P2 backplane connectors are fully mated.
• Grounding: Verify that the chassis frame ground connection is secure. All field wiring must be routed through shielded conduits to minimize electromagnetic interference (EMI) on the sensitive resistance-based inputs.
• Shielding: Terminate all RTD cable shields at the designated cabinet grounding bus. Do not ground the cable shield at both ends to avoid the creation of ground loops, which can inject noise into the temperature readings.
• Wiring Separation: Maintain physical separation between RTD signal cables and high-power AC or DC control lines to prevent induced voltage transients that could compromise measurement integrity.