Rockwell Automation MPL-xxxx Low Inertia Servo Motor 215 mm or Larger - Manual (Page 8)

8 MP-Series Low-inertia Servo Motor with 215 mm or Larger Frame Size
Rockwell Automation Publication MP-IN002D-EN-P - January
Grounding of Signal Wire Shields in a Power Cable
The signal wire pairs within a power cable often carry a 24V DC brake signal, but can also carry
logic signals. Grounding the shield that surrounds the signal wires dissipates an induced voltage
and reduces the effects of EMI.
Install the Motor
MP-Series motors include a mounting pilot for aligning the motor on the machine. Preferred
fasteners are hardened steel. The installation must comply with all local regulations and use
equipment and installation practices that promote safety and electromagnetic compatibility.
ATTENTION: Unmounted motors, disconnected mechanical couplings, loose shaft keys, and disconnected
cables are dangerous if power is applied.
Lock-out and tag-out disassembled equipment (restrict electrical power).
Before applying power to the motor, remove the shaft key and other mechanical couplings that can be thrown
from the shaft.
ATTENTION: Make sure that cables are installed and restrained to prevent uneven tension or flexing at the
cable connections.
Excessive and uneven lateral force on the cable can inhibit environmental sealing as the cable flexes.
Shielded Signal Wires (two pairs) within Power Cable
Overall Power Cable Shield
Signal Wire Shield (one of two) Contacts Overall Power
Cable Shield
Factory Supplied
Field Modified
All power and signal wire shields must connect to machine ground.
The diagram shows one of the two signal wires in the correct
position. Connect both signal wire shields and the overall power
cable shield to machine ground.
2090-XXNPMF-xxSxx (shown) contains two signal wire pairs.
2090-CPBM4DF-xxAFxx contains one signal wire pair.