Page 53 - Saber® Installation & Startup

INSTALLATION & STARTUP

Chapter 5 Electrical

Best Practice Methods

Prevent Electrical Noise
It has been our experience that electrical noise can create issues such as ghost or phantom
systems faults, and erratic communication between sensors and the Program Logic Controller
(PLC). To prevent system performance issues associated with electrical noise we require the
following wiring techniques when installing high and low-voltage utilities.
Avoid parallel runs or close wire proximity of wiring of motor supply from VFD and any other
wiring. This includes avoiding parallel runs with other 3 phase wiring.
Never use combined wire ways or a trough which mix 3 phase wires with Saber® 120VAC
and/or 24VAC wiring.
Never run 120VAC and/or 24VAC in the same conduit that houses 3 Phase wiring.
Never bundle 120VAC and/or 24VAC wiring with any 3 Phase through wire-ties or by any
other means.
Conduit runs and hubs that contain motor wires running from the MCC to the motor should
only contain the wires running from the MCC to the motor. These conduit runs and hubs
should not contain wires from any other circuits especially 120VAC and 24VAC control wires,
unless conduit contains only the cables from Saber® Boom.
Make sure when routing Boom wiring from bay to back room 3 phase wiring maintains
isolated from 120VAC and/or 24VAC wiring. Isolated in original cables or in separate conduit.
Electromagnetic Interference (EMI)

It is highly recommended that all wiring conform to suggestions and absolutes from this
document and Electrical Prints. Standard methods of routing and connecting motor wires are
not sufficient for systems with multiple VFD’s. In the event that electrical noise issues are still
present in the system after conforming to all stated wiring practices, there are ways to reduce
this noise. Please contact Belanger Technical Support for further assistance at 248-349-7010.

1MANUL290 Belanger, Inc. * PO BOX 5470 * Northville, MI 48167-5470 * Ph (248) 349-7010 * Fax (248) 380-9681 5-3