Installation and Maintenance Manual: RLVDC
Published February 2022
3
Term and Acronym Definitions
TERM/ACRONYM
DEFINITION
2 Groove
Roller format which uses O-Rings to transfer rotational motion from
one roller to another in DC conveyor.
BF
Between frame; this refers to the distance between conveyor bed
side frames.
Carton or Case
Term for conveyable items generally contained in cardboard boxes.
DC
Direct current
DC Card
A control card used to power and control the logic used when
operating a MDR in DC conveyor applications.
Discharge
The point where cartons, cases, or totes exit a conveyor or similar
unit used in a material handling system.
Live
A zone of conveyor runs "live" when it runs whenever energized. It is
for this reason that live zones of conveyor do not have or need any
photoeyes or reflectors.
MDR
Motorized drive roller; DC powered conveyor roller with an internally
mounted motor which may be controlled via internal or external
commutation.
OAW
Overall width of any given conveyor bed.
OD
Outer diameter of a circular, cylindrical, or arced body.
OSHA
Occupational Safety and Health Administration
Poly-V
A band or roller hub format with longitudinal ribs used for power
transmission in DC conveyor applications.
PPE
Personal protective equipment
Roller
Powered or unpowered cylindrically-shaped material handling
component used for mechanical power transmission, a conveying
surface, and/or support for a belted conveying surface.
Side Cover
A PVC cover used to conceal and protect electrical components and
wiring from foreign debris and moving obstacles.
Side Frame
Structural member used to support rotating components needed for
conveyor beds.
Singulation
The active separation of cartons, cases, or totes.
Wiz Nut
A serrated flange nut used to cut into the surface of the component it
is tightened against.
