Delta MS300 Series User Manual page 610

ID Display on LCD Keypad
78
Action Condition
Action Time
Fault Treatment Parameter
Reset Method
Reset Condition
Record
Cause
S1 and DCM, or S2 and DCM
short circuit lines are not
connected
Hardware failure
Fault Name
Internal loop detection
error
(STL3)
Action and Reset
Hardware detection
Immediately act
N/A
Hardware failure, and cannot reset. Cycle the power.
N/A
Yes
Re-connect the short circuit lines
After you make sure all the wiring is correct, if STL3 fault still exists after cycling
the power, return to the factory for repair.
601
Fault Descriptions
Internal loop detection error
Corrective Actions
Chapter 14 Fault CodesMS300