Rockwell Automation 4100 ALEC AXIS LINK ENCODER CONVERTER - Manual (Page 32)

Publication 4100-5.3 - June 1999
24 Installation & Hook-Up
sure you correct the wiring before replacing the fuse with a 2A Slow
Blow, 1/4 x 1 1/4 fuse of the same type for continued protection.
Fault Relay
To provide safe operation (opening the fault string if a fault occurs or
power to the ALEC is lost) the fault relay outputs must be connected
appropriately. The fault relay N/O contact is held energized when the
ALEC has not detected a fault.
The Fault Relay provides one normally open status that is voltage free
and isolated from the ground.
The following diagram is an example of a Normally open Fault relay.
This is an example only it is neither a recommendation nor an
endorsement. You know your application best and can best determine
your own needs for a Fault Relay.
Figure 2.9 Example of a Normally Open Fault Relay
ATTENTION
!
Do not apply power to the ALEC until the Mode switch
is set correctly and all other connections have been made.
24V DC
4 3
CR1
CR1 Start/Stop String
Fault String
Start
Stop
DC
Common
The ALEC Fault Relay uses the
bottom two pin locations on the
Power Input/Fault Relay Connector.