Product Description
The IS210DTURH1AA board is described in the GEH-6421C Volume II System Guide for the Speedtronic Mark VI Turbine Control System Guide as a compact pulse-rate terminal board that only has simplex application and is DIN-rail mounted. Four magnetic pickups, or pulse-rate transducers, are used for measuring speed and flow. The primary I/O processor board that the DTUR uses is the VTUR board; please note that when connecting the DTUR board up to two models can potentially be connected to the VTUR model.
The DTUR model is described as a termination box and is closely related to the TTUR board which is also used for VTUR I/O termination. The main difference between the DTUR and TTUR models is that the TTUR model has synch relays, two PTs, and two SVMs along with the four pulse rates. There is also a Euro block-type terminal block that is permanently mounted to the board, this block is located on the bottom of the board and has thirty-six terminals. The typical wiring terminal needed is a shielded twisted pairing labeled as #18 AWG. There are also two sub-D pin connectors, the JR5 connector is used to cable to the VTUR board, and the remaining connector is labeled JR1 has latching fasteners, and will connect to the J3 connector on the VTUR board.
The pulse rate or speed inputs on the IS210DTURH1AA board are used to detect speed on a sixty-toothed wheel, the speed on the wheel should be at zero. The inputs also have a sensitivity of two Hertz, with the typical range being two to fourteen thousand Hertz.