Emergency Stop
134
MagneMotion
Rockwell Automation Publication MMI-UM013B-EN-P - April 2020
Emergency Stop:
A user-supplied circuit with a locking button that anyone can press to stop
motion in the transport system. It can be wired through the digital I/O on the
NC-12
EMO:
Entry Gate:
The position on a path associated with a node where the leading edge of a vehi-
cle is considered cleared from the node.
Entry Path:
A path whose downstream end is a member of a node. A vehicle that is moving
downstream enters a node on an Entry Path.
Ethernet Chain:
Ethernet chains allow devices to be connected in series with standard Ethernet
cable, without the need for additional network switches. A daisy chain device
has two embedded Ethernet ports that function as an Ethernet switch and an
interface to the local device. This embedded switch allows information to flow
to the device, or flow through the ports to other devices in the chain.
Exit Path:
A path whose upstream end is a member of a node. A vehicle that is moving
downstream exits a node on an Exit Path.
Forward Direction:
The default direction of motion, from
, on a Mag-
neMotion transport system.
Glide Puck:
A preconfigured vehicle for use on MagneMover
®
LITE transport systems that
uses low friction skids to slide on the integral rails.
Global Directives:
commands that define the general operating characteristics
for all vehicles specified. See also
Ground:
The reference point in an electrical circuit from which voltages are measured.
This point is typically a common return path for electric current. See also
.
Guideway:
that consists of rails or other devices in con-
tact with the
, either through wheels or low friction runners on the vehi-
cle. The guideway maintains the proper relationship between the vehicles and
the motors. In the MagneMover LITE transport system, the guideway is the
integral rails that are mounted on the motors.
Headway:
The space that is maintained before a vehicle to make sure that the vehicle is
able to stop safely. See
Hall Effect Sensor:
A transducer that varies its output in response to changes in a magnetic field.
Hall Effect Sensors (HES) are used by MagneMotion LSMs for vehicle posi-
tioning and speed detection.
High-Level Controller:
The application in a node controller that communicates with the host con-
troller. Only one node controller per HLC Control Group runs the high-level
controller application. In a transport system with only one node controller, it
runs both the node controller and high-level controller applications.
HLC:
HLC Control Group:
The portion of a multi-HLC LSM transport system under control of a specific
HLC.
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