The EFS 8370 module is a power driver for piezoelectric injectors. It features different driving modes and advanced functions making it adaptable to most of the injectors available on the market. ADVANTAGES • Opening and closing voltage can be set independently between -200 V to +200 V • Maximum current can be set from -20 A to +20 A • Current slope can be set between 0.1 A/µs to 10 A/µs • Enough power to deliver 250 injections per second • Internal pulse generator. SYSTEM DESCRIPTION The driving parameters of the injector can be set via an RS232 or RS485 (4 wires link, using the MODBUS protocol: •MODBUS identification on the front panel •Daisy-chaining of racks by means of the RS485 link •PC supervision software available on demand The injector driving can be started: •by an external input •by an internal pulse generator Three driving methods are available as standard (see the examples above). Other modes can be added upon request. The « injector opening » voltage can be fixed or can changeby linear regression based upon an analog input, the image of an external physical phenomenon. The equipment is protected against overcurrents, short-circuits and overheating. IPOD PIEZO WinIPOD piezo (EFS1764) is a graphic interface enabling the complete parameter management (currents, voltages, time) necessary for driving the injector.