InternalError 7 (System Monitor OEW)
â–¶ How to fix
1: Change HLC unit.
What you'll see
System Monitor OEW low when expected to be high.
System reaction
FDC = 127 will: *Stop transmition of HMILEDStatus. *Turn off all outputs. FDC = -128 will: *Allow HLC to continue with normal operation.
Diagnostic depth
Detection
OEW_CONTROL == 0
Possible cause
Internal HW error.