Delta MH300 Series - Page 1009

Chapter 17 Safe Torque Off FunctionMH300
17-10
ID No.
KPMH-LC01
Display
Descriptions
77
S2–DCM internal loop detection error
Possible cause and corrective actions

The short-circuit wire of S2 and DCM does not connect.
 Re-connect the short-circuit wire
 Hardware failure
A
fter you make sure all the wiring is correct, if STL2 fault
still exists after cycling the power, contact with Delta.
78
S1–DCM & S2–DCM internal loop detection error
Possible cause and corrective actions

The short-circuit wire of S1 and DCM, or S2 and DCM does not
connect.
 Re-connect the short-circuit wire
 Hardware failure
A
fter you make sure all the wiring is correct, if STL3 fault
still exists after cycling the power, return to the factory for
repair.
Table 17-5