MS300 - STL1, STL2, STL3 (Looks like SRL1, SRL2, SRL3) Safety Torque Off Loss Fault

STL1, STL2, STL3 are all similar errors related to Safety Torque short circuit lines and often occur when a drive needs repair. If the jumpers are still connected as in diagram 17-2, you have no IO cards attached, and the error reoccurs after cycling the power the drive will need to be returned under warranty or replaced.