O & M Manual – Insulated Case ATS Rev: October 2020
Publication Number:
MN0100700E
Version: V10.01.20
Page 69
Table 26 - DSE2548 Fault Diagnosis
Fault Indications
Suggestion
Relays don’t Activate on the 2548 Board
Ensure the host controller is correctly
configured to send signals to the DSE2548
Power LED Indication Does Not Illuminate
Check polarity and size of the connected
DC supply are within the specifications of
the DSE2548
Power LED Flashes
This means the communications link to the
host controller has been lost.
Check the connection of the DSEnet paying
particular attention to the cable type being
used and the positioning of the termination
resistors.
Please contact Lake Shore Electric Technical Support if unable to resolve the expansion boards
problem.
7.4.
Other Issues
There are other possible issues that will cause the ATS to go into a fault state such as the
following:
a.
Interconnections & Cable Connections
b.
Molded Case Breaker / Switch
c.
Internal Auxiliary / Bell Alarm / Shunt Trips inside Molded Case Breaker / Switch
d.
Motor Operation Faulty
If any of these are the suspected cause of the ATS fault state, please contact Lake Shore
Electric Technical Support for assistance.