Delta C2000 Series User Manual page 713

Chapter 14 Fault Codes and DescriptionsC2000
ID* Display on LCM Keypad
77
Action level
Action time
Fault treatment parameter
Reset method
Reset condition
Record
Cause
STO2 and SCM2 short circuit lines
are not connected
Hardware failure
Poor connection of the IO card
The IO card does not match the
version of the control board
ID* Display on LCM Keypad
78
Action level
Action time
Fault treatment parameter
Reset method
Reset condition
Record
Cause
STO1 and SCM1, or STO2 and
SCM2 short circuit lines are not
connected
Hardware failure
Poor connection of the IO card
The IO card does not match the
version of the control board
Fault Name
STO Loss 2 (STL2) STO2–SCM2 internal loop detection error
Action and Reset
Hardware detection
Immediately act
N/A
Hardware failure, and cannot reset. Cycle the power.
N/A
Yes
Connect the short circuit lines
After you make sure all the wiring is correct, if STL2 fault still exists after cycling
the power, please return to the factory for repair.
Check if the PIN of IO card is broken?
Check if the IO card connects to the control board correctly, and if the screws
are tightened well?
Contact local agent or Delta
Fault Name
STO1–SCM1 and STO2–SCM2 internal loop detection
STO Loss 3 (STL3)
error
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, please return to the factory for repair.
Check if the PIN of IO card is broken?
Check if the IO card connects to the control board correctly, and if the screws
are tightened well?
Contact local agent or Delta
14-42
Fault Descriptions
Corrective Actions
Fault Descriptions
Corrective Actions