Overview: The document provides technical specifications and performance details for the EExdIIC Series of DC Servo Motors, designed for environments where gas can enter the motor enclosure without causing external explosions. These motors meet the standards for Apparatus Group IIC as per EN 50 018 and EN 50 014.

Specifications: The motors are available in various models, including MS-2, MS-12, MS-22, MA-3, MA-20, MA-30, MS-4, MS-6, MS-8, and MA-6, MA-10. They are designed to operate at an ambient temperature of 70ºC with temperature classifications T5 and T3. The series includes both DC and AC brushless motors with optional internal tachometer, resolver, and parking brake.

Performance Curves: The document includes performance curves for different models, showing the relationship between torque (Nm) and speed (rpm). For example, the MS-2 model shows a speed range from 0 to 4500 rpm as torque increases from 0 to 1 Nm.

Tachometer Specifications: Key specifications include a voltage constant of 10 V/krpm with a ripple of less than 1.5% at 1000 rpm, linearity of ±0.1% at 6000 rpm, and a reversing error of ±0.12%. The rotor inertia and resistance values vary across models.

Technical Specifications: The document details rated speed, voltage, current, output power, efficiency, torque, and other parameters for each motor model. For instance, the MS-2 model has a rated speed of 3000 rpm, rated voltage of 67 V, and rated current of 7.8 A.

Additional Information: The document provides thermal and mechanical time constants, thermal resistance, and load capacities for each motor model. All characteristics are measured at a 40°C ambient temperature, except for terminal resistance, which is measured at 25°C.