S748 and S770 are new models in the S700 series of digital servo amplifiers, suited for complex drive functions and high clock rates. They are now available in rated current options of 1.5A, 3A, 6A, 12A, 24A, 48A and 70A, as well as in three manufacturing sizes for 300mm deep standard switchgear cabinets. Furthermore they feature integrated EMC filters and for models up to 24A an integrated brake resistor assimilates the regenerative DC-link circuit performance. All models have an Ethernet interface. Via plug-in cards all common fieldbus systems, including Profibus DP, Sercos II, DeviceNet and SunqNet can be set up. In addition there are also a number of standard integrated safety functions present such as a tested Safe Torque Off restart lock. The optional safety expansion card enables additional safety functions such as ''Safe Stop'', ''Safe Limited Speed'' and ''Safe Direction''.