Rockwell Automation 4100 AEC Absolute Encoder Converter Installation - Manual (Page 33)

Publication 4100-UM052B-EN-P - October 2001
Installation & Hook-Up 25
connected appropriately. The control status relay N/O contact is held
energized when the AEC has not detected a fault.
There is one control status relay per axis. Each relay provides one
normally open and one normally closed pair that is voltage free and
isolated from each other and the ground.
Figure 10 An example of a Normally Open Fault status contact
The diagram shows an example of connecting the AEC fault contact
into a system fault string. Since the status relay is energized when the
AEC is indicating no faults, the contact is closed.
A typical fault detection scheme may require additional circuitry when
used in applications where the AEC fault contacts do not have
sufficient capacity to drive a fault detection circuit directly.
24V DC
7 3
CR1
CR1 Start/Stop String
Fault String
Start
AEC Fault contact
located at Axis 0,1
Control connector
Stop
DC
Common
ATTENTION
!
The Fault Contacts are NOT intended to be used for an
emergency stop string. They are intended for fault
indication only.