Instruct S10 SRP Variable speed drives are cost-effective and easy to use for many sucker rod pump applications. They provide operations staff a simple technology for modifying the pumping speed (SPM) of the pumping system to meet the changing needs of their manual optimization programs. The high-performance INSTRUCT VSD enables sophisticated motor control with speed and torque accuracy, low harmonics, and smooth speed ramping. The system enhances safety through controlled stopping and braking, limiting of maximum speed, and direction management.