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5 Troubleshooting
5
Chapter 5 Troubleshooting
5.1 Fault and Warning Grading
Fault and warning grading
Faultsand alarmsaregradedintothefollowingthreelevelsbasedon degree ofseverity:NO.1>NO.2>
NO.3.
NO.1 non-resettable fault
NO.1 resettable fault
NO.2 resettable fault
NO.3 resettable warning
"Resettable"meansthatthekeypadstopsdisplaysoffaults/warningsoncethe"resetsignal"isinput.
Toresetafault/warning,useoneofthefollowingtwomethods:
Set 200D-02h=1 (fault reset enabled).
Enable the rising edge of the control word 0x6040 bit7 on the host controller.
To reset a NO.1 fault and a NO.2 fault, turn off the S-ON signal and input the fault reset signal.
To reset a NO.3 warning, directly input the fault reset signal.
■ Relevant function code:
Function
Code
Name Setting Range Function
Setting
Mode
Effective
Time
Default
200Dh-02h
Fault
reset
0:nooperation
1:fault/warningreset
Thekeypadstopsdisplayforthe
resettable faults and warnings.
After reset, the value restores to
"0:nooperation."
At stop Immediate 0