Motor Parameters Overview

This document details the specifications and wiring information for the 40AIS series DC servo motors.

1. Motor Specifications

• Motor Model: 40AIS series
• Rated Power: Specified in Watts (W)
• Rated Current: Specified in Amperes (A)
• Rated Voltage: Specified in Volts (V)
• Rated Speed: Given in revolutions per minute (rpm)
• Maximum Speed: Maximum allowable rpm
• Moment Coefficient: Torque per Ampere (Nm/A)
• Line Resistance: Resistance of motor winding lines (Ω)
• Line Inductance: Inductance of motor winding lines (mH)
• Motor Length (L): Physical length in millimeters (mm)
• Rotor Pole Pairs: Number of pole pairs in rotor
• Rated Torque: Nominal torque output (N·m)
• Peak Torque: Maximum torque output (N·m)

2. Mechanical and Electrical Characteristics

• Installation Dimensions: Measured from the flange for mounting accuracy
• Winding Connection: Star connection
• Encoder Type: 17-bit Absolute Encoder for precise position feedback
• Shaft Runout: Maximum 0.025 mm to ensure shaft precision
• Radial Clearance: 0.06 mm at 450 g load
• Axial Clearance: 0.08 mm at 450 g load
• Maximum Radial Load: 15 N at 20 mm from bearing center
• Maximum Axial Load: 10 N
• Insulation Class: Class B
• Dielectric Strength: 500 VAC for 1 minute
• Insulation Resistance: Minimum 100 MΩ at 500 VDC
• Motor Insulation Level: Specified for durability and safety
• Protection Level: Not explicitly stated but implied for standard servo motor use

3. Wiring and Electrical Connections

The motor wiring includes multiple terminals with specific functions:

• Input Terminal Common: Used to drive input optocoupler; connected to DC 12-24V (common anode for NPN) or 0V (common cathode for PNP) with current ≥100 mA.
• Input Terminal 01: Function depends on user I/O settings; voltage self-adaptive from DC 5-24V.
• Output Terminals: Include negative and positive ends for instruction direction and command pulses.
• Power Supply Terminals: DC power positive and ground terminals; note that reverse polarity connection will damage the driver.
• Communication Terminals: RS-485 communication positive and negative terminals, communication common, program upgrade clock line, and data cable.
• 3.3V Power Supply: Provided for communication circuits.

4. Critical Notes and Recommendations

• Ensure correct polarity when connecting DC 24V power supply to avoid driver damage.
• Observe rated and maximum speed limits to prevent motor damage.
• Maintain shaft runout and clearance within specified limits for optimal performance and longevity.
• Use the 17-bit absolute encoder for precise position feedback in control applications.
• Follow insulation and dielectric strength specifications to ensure electrical safety.