This setup needs a digital speed control unit, utilizing a PWM, or pulse width modulated waveform input. Once installed, the 9907-174 LSM unit allows the generator to use other Woodward Inc. hardware to aid in regulating power levels. In addition, there are other functions such as. This unit acts as a gateway to set up several individual modules onto your generators, such as the SPM-A and SPM-D synchronizers, a paralleling phase switch, an import/export control, and precision frequency control. This unit is outfitted to provide generators with the adjustment capabilities needed to help streamline the process of generating power.
There are two key settings programmed into the 9907-174, the droop and load gain settings. The droop provides output reducing between no load and full load conditions, and then the load gain is able to adjust the load even while multiple generators are paralleled. The 9907-174 model is designed with a standard set of specifications, such as the power intake required for it to run at optimal speeds. The nominal voltage needed is 24 volts of direct current, but a minimum of 18 is needed and can take up to 32 V/DC before damage occurs. Environmentally, the 9907-174 module needs to be installed in an industrial workplace setting that is in a temperature between the acceptable range is between low as -40 C/F to as hot as 70 C, or 158 F. AX Control is adapt to buy, fix, sell, and resell this product as well as others.