1.4 Ratings and Specifications of a Multi-Winding Drive System1-91 Outline1.4.2 Basic Specifications(1) Multi-Winding Drive Unit SpecificationsFeedback Encoder: 20-bit (incremental or absolute)OperatingConditionsSurrounding Air Tem-perature 0°C to +55°CStorage Temperature -10°C to +85°CAmbient Humidity 90% RH or less With no freezing or condensationStorage Humidity 90% RH or lessVibration Resistance 4.9 m/s 2Shock Resistance 19.6 m/s 2Protection Class IP10 The environment must satisfy the following conditions:• Free of corrosive or flammable gases• Free of exposure to water, oil, or chemicals• Free of dust, salts, or iron dustPollution Degree 2Altitude 1,000 m or lessOthers Free of static electricity, strong electromagnetic fields, magnetic fields orexposure to radioactivityMounting Base-mountedApproximate Mass 2.6 kgConnectable SERVOPACKs Two, large-capacity Σ-V SERVOPACKsConnection Method with SERVO-PACKs Two serial communications ports (Each SERVOPACK is connected 1:1.)Perfor-manceSpeed Control Range 1:5000 (The lower limit of the speed control range must be lower than thepoint at which the rated torque does not cause the servomotor to stop.)SpeedRegula-tion *1LoadRegulation 0% to 100% load: ±0.01% max. (at rated speed)VoltageRegulation Rated voltage ±10%: 0% (at rated speed)TemperatureRegulation 25 ± 25°C: ±0.1% max. (at rated speed)Torque ControlTolerance(Repeatability)±1%Soft Start Time Setting 0 to 10 s (Can be set individually for acceleration and deceleration.)