I/O modules

Key Technical Specifications

This GE IS200VRTDH1D IS200VRTDH1DAC board operates from a 24V DC power supply. It terminates 16 RTD input channels for VME-based turbine systems. The unit measures 22 cm in length, 17 cm in width, and 4.5 cm in height. Its total weight reaches 0.7 kg without any packaging materials.

The GE IS200VRTDH1D IS200VRTDH1DAC includes 16 RTD conditioning circuits with excitation. Additionally, it features one VME backplane connector for host interface. A single 6-pin terminal block connects the DC power input. The board contains 16 RTD conditioners, 1 FPGA, 8 voltage regulators, 24 resistors, and 18 capacitors.

GE IS200VRTDH1D IS200VRTDH1DAC stores energy using one electrolytic capacitor. This capacitor provides 100 µF at 35V rating for input filtering. Consequently, the board maintains stable readings during 20 millisecond power fluctuations. Therefore, temperature measurements remain accurate in noisy industrial environments.

Design and Integration

Both the GE IS200VRTDH1D and IS200VRTDH1DAC versions share identical RTD conditioning circuitry. These boards use four-layer PCB construction with guarded analog traces for noise rejection. Consequently, the GE IS200VRTDH1D IS200VRTDH1DAC operates reliably from -10°C to +55°C ambient temperature.

For installation, you need M3 screws for the four mounting holes. The board draws 150 mA typical current from the 24V DC supply. Each RTD input supports 2-wire or 3-wire sensor connections. We recommend using shielded twisted-pair cables for all RTD field connections.

Practical Application

This VME RTD input board connects PT100 temperature sensors to a VME-based turbine control system. It monitors bearing, winding, and exhaust gas temperatures continuously. The GE IS200VRTDH1D IS200VRTDH1DAC then routes conditioned signals to the host controller. Therefore, it serves as a temperature interface for GE VME turbine control panels.

Details