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Control Function The DSM Synchronizer automatically synchronizes the speed of an oncoming generator to a bus by sending raise or lower signals to the speed reference of the speed control. Models with voltage matching also include circuitry which matches the generator and the bus voltages by sending raise or lower signals to the generator voltage regulator.

Application The DSM Synchronizer is recommended for use in power generation systems using steam or gas turbines. It is designed for use with electronic controls requiring raise and lower contact signals, including digital controls such as the Woodward 501, 503, 509, 505, and the NetCon® system. Construction All components of the DSM Synchronizer are mounted on a single printed circuit board (PCB). The PCB is enclosed in a rugged steel housing. The terminal block, located at the lower front of the housing, is soldered directly to the PCB, eliminating the need for internal wiring harnesses. Control dimensions are shown in the outline drawing, Figure 1-1. Generator Input For 115 Vac, remove the jumper that's between terminals 3 and 4. Connect the generator to terminals (2 and 3) and (4 and 5). For 230 Vac, remove the jumpers between terminals (2 and 3) and (4 and 5). Connect the generator to Terminals (2), (3 and 4), and (5).

Features Here is a brief description of the features that add convenience, safety, and reliability to the operation of the DSM Synchronizer. Actual adjustments and calibration are discussed in Chapter 3, and a more detailed explanation of the DSM Synchronizer is available in Chapter 4, Description of Operation.