Installation Guide: NexBot Robotics DC112-017 DC Servo Motor 17 Nm
SKU: NXB-SRV-DC112-017 | Revision: 1.0 | Category: Drive Systems > Servo Motors > DC Servo Motors
DANGER: Disconnect all power sources before beginning installation.
Follow lockout/tagout (LOTO) procedures per OSHA 1910.147.
1. Required Tools & Materials
2. Pre-Installation Checks
- Verify the product SKU on the motor nameplate matches NXB-SRV-DC112-017.
- Inspect the motor housing and shaft for any signs of damage sustained during shipping.
- Ensure the mounting surface is clean, flat, and free of burrs or contaminants.
- Confirm that the main power to the servo drive controller is de-energized and locked out.
- Check that the shaft coupling and key match the motor shaft specifications.
- Verify the 48VDC power supply is correctly rated for the motor's peak current draw.
3. Installation Procedure
Step 1: Safety Power-Down Verification
Before handling the motor or cables, use a digital multimeter to verify zero voltage at the servo drive's motor output terminals. Follow all local lock-out/tag-out (LOTO) procedures to prevent accidental energization.
Warning: Failure to de-energize and lock out the system can result in severe electrical shock or unexpected machine motion.
Step 2: Mechanical Mounting
Carefully lift the 4.2 kg motor and align it with the mounting flange. Insert and hand-tighten all mounting bolts, then use a torque wrench to tighten them in a star pattern to the specification listed in the machine's assembly manual.
Step 3: Shaft Coupling
Slide the mechanical coupling onto the motor shaft, ensuring the key is properly seated in the keyway. Secure the coupling according to its manufacturer's instructions, taking care not to apply excessive axial or radial force to the motor shaft.
Warning: Improper coupling can lead to premature bearing failure, vibration, and positioning errors.
Step 4: Power Cable Connection
Connect the 48VDC power leads from the servo drive to the motor's power connector. Ensure the polarity is correct and that the connector is fully seated and locked to maintain the IP65 rating.
Warning: Reversing the power polarity can cause permanent damage to the motor and/or the servo drive.
Step 5: Feedback and Communication Cable Connection
Connect the motor's feedback (encoder) cable to the corresponding port on the servo drive. Connect the PROFINET cable to the communication port, ensuring both connectors are securely fastened.
Step 6: Grounding
Connect the motor's grounding lug to the machine's system ground using a dedicated, low-impedance conductor. A proper ground connection is critical for safety and noise immunity.
Warning: Improper grounding can create a safety hazard and lead to unreliable operation due to electrical noise.
Step 7: Cable Routing and Strain Relief
Route all cables away from sharp edges and sources of heat or interference. Secure the cables using appropriate clamps to provide strain relief and prevent them from being damaged by machine movement.
4. Post-Installation Verification
- Double-check that all electrical connectors are fully seated and secured.
- Verify that all mounting bolts are torqued to the correct specification.
- Ensure the motor shaft can be turned by hand (if not connected to a brake or gearbox) to check for binding.
- Power on the servo drive and establish PROFINET communication with the controller.
- Perform a low-speed, low-torque jog command to verify the direction of rotation is correct.
- Listen for any unusual noises or vibrations during the initial test movements.
Note: For technical support, contact your authorized service provider
or visit https://robotics.barca.group/support.