Mounting, bonding, and grounding – Rockwell Automation 1770 Industrial Automation Wiring and Grounding Guidelines User Manual
Page 4

Industrial Automation Wiring and Grounding Guidelines
4
Publication 1770-4.1 – February 1998
Figure 1
Mounting Assembly Details
Category-2
Conductors
Enclosure Wall
12618-I
I/O Block
Transformer
Use greater
spacing without
conduit
Tighter spacing
allowed
with conduit
Tighter spacing allowed
where forced by spacing
of connection points
Place modules to
comply with spacing
guidelines if possible
Category-1
Conductors
(ac Power Lines)
Category-2
Conductors
Conduit
1771 I/O Chassis
Conduit
After establishing all layouts, you can begin mounting, bonding, and
grounding each chassis. Bonding is the connecting together of metal
parts of chassis, assemblies, frames, shields, and enclosures to
reduce the effects of emi and ground noise. Grounding is the
connection to the grounding-electrode system to place equipment at
earth ground potential.
Mounting, Bonding, and
Grounding
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- 1336S_F_T_E_R F Frame Snubber Resistor Repl. (6 pages)
- 22-COMM PowerFlex 4-Class DSI (Drive Serial Interface) Network Communication Adapter (4 pages)
- 8-545 Plug In Solid State Relay (2 pages)
- 20-HIM-B1 PowerFlex 7-Class HIM Bezel (DPI) (4 pages)
- 100 Contactors with DC Coil (2 pages)
- 100 Contactors with DC Coil (1 page)
- 20P PowerFlex DC Drive - Frame D Switching Power Supply Circuit Board (6 pages)
- 140G-MTFx_MTHx_MTIx_MTKx Trip Unit Installation-140G-M (6 pages)
- 45BRD Analog Laser Sensor (4 pages)
- 20D Multi-Device Interface Option Board for PowerFlex 700S Drives (20 pages)
- 56RF RFID 18 mm Cylindrical Transceiver (2 pages)
- 42KC Miniature Rectangular: 5V DC Version (2 pages)
- 20P PowerFlex DC Drive - Frame A Switching Power Supply Circuit Board (16 pages)
- 21P-MISC-A-TP-2 Transition Tube Kit #C19-6/7 For PowerFlex 755 w/OEM Liquid Cooling Fr 6/7 Drive (2 pages)
- 42BT Background Suppression Sensor (3 pages)
- 42CB High Speed 18mm Cylindrical (4 pages)
- 140EX-JE2_JE3 Molded Case Circuit Breaker (4 pages)
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- 42CF General Purpose 12mm Cylindrical (4 pages)
- 20D PowerFlex 700S Phase II Drive Frames 1...6 (80 pages)
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- 140EX-HE1_HE2 Molded Case Circuit Breaker (4 pages)
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- 140U H-Frame Circuit Breaker Fixed and Adjustable Thermal Trip (7 pages)
- 60-2619, 42JS Swivel/Tilt Mounting Bracket (1 page)
- 22A PowerFlex 4/40/400 Flange Mount (4 pages)
- 45MLA Controller Installation Instructions (16 pages)
- 20P PowerFlex DC Drive - Cooling Fan for Frame A Drives Above 73A at 230V 460V AC (6 pages)
- 42JS Series 7000 to 42JS VisiSight Replacement Kit (2 pages)
- 22A PowerFlex 4-Class HIM Bezel (DSI) (4 pages)
- 42CS Stainless Steel Photoelectric Sensors (4 pages)
- 20L-LL PowerFlex 700L Liquid-to-Liquid Heat Exchanger (40 pages)
- 20P PowerFlex DC Drive - Frame B SCR Modules (20 pages)
- 22B PowerFlex 40 Quick Start FRN 5.xx - 6.xx (161 pages)
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- 22F PowerFlex 4M Input RFI Filters (2 pages)
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