Rockwell Automation MPF-Bxxx Food Grade Servo Motor - Manual (Page 8)

8 MP-Series Food-grade Servo Motor with 100 mm to 165 mm Frame Size
Rockwell Automation Publication MP-IN004E-EN-P - January 2014
Ground Shielded Signal Wires within a Power Cable
Always connect the shield on any signal wire pair routed inside a power cable to the overall
machine ground.
If you are installing a 2090-XXNPMF-
xxSxx or 2090-CPBM4DF-xxAFxx power cable, loop
the signal wire pairs to the overall cable shield as shown in Grounding of Signal Wire Shields in a
Power Cable on page 8 . Then clamp all of the shields together in the power cable (chassis)
ground connection on the drive.
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.
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.