Siemens introduces a new enclosed drive system, the Sinamics G120XE designed specifically for the demands of industrial pump, fan and compressor applications. Built around the Sinamics G120X infrastructure drive, the new enclosed system is suited for fast design and commissioning in industries such as oil-and-gas/petrochemical, water/wastewater, power plants, industrial climate control, refrigeration and chillers in harsh environments. A NEMA 1 enclosure is standard, with a NEMA 12 version optional, featuring appropriate ventilation and air filters. The base enclosure is suitable for wall-mounting to 75 hp applications, while the free-standing floor module accommodates uses to 200 hp.
Standard electrical characteristics of the new enclosed drive system also include a UL508A listing, SCCR rating to 65kA, circuit breaker disconnect with flange-mounted operator handle and mechanical door interlock, plus control power transformer for internal power control and power module with PWM IGBT inverter. Overload ratings allow operation in either light or high overload duty conditions.
The enclosure ventilation fans on the Sinamics G120XE are controlled via a relay and run only as needed, an energy saver and noise reduction feature. Optional features on the enclosure include output filters and reduced voltage soft start (RVSS) bypass. A key feature of the G120XE is the intelligent operator panel, IOP-2. The unit self-guides the operator with on-screen instructions on a keypad-guided menu.
In addition to the door-mounted IOP-2 keypad/display, the drive can also be commissioned, setup or modified using any Wi-Fi-enabled laptop, tablet or smartphone by installing the Smart Access Module. Another option for commissioning, setup or drive modification is to use the Siemens Totally Integrated Automation (TIA) Portal via a GSD file. The Siemens Sizer configuration software tool can help with selecting and matching the G120X drive system with a Siemens motor and other system components.
