The fault data logging function can be used to capture a scope trace of up to
four parameters in high resolution before and after a drive fault is triggered.
The scope le is then saved to ash memory on the keypad operator, and the
le can be transferred from the keypad operator via FTP and imported within
Combivis 6 to evaluate the scope trace.
The function is available under Prog > File > Fault Logging Menu.
Parameter Selection
Up to four parameters from the Diagnostics Parameters and/or Field Bus
Conguration parameters can be selected for the scope trace. For each scope
channel, select the channel number 1 - 4, then select either Diagnostics
Parameters or Field Bus Conguration, then scroll through the corresponding
parameter list to select the parameter for the corresponding channel.
Function Enabled/Disabled
Select whether the logging function is active.
Base Block Checking
The Base Block status indicates the output transistors have been safely shut off
and are being blocked from further operation. It is not an error but will appear
before an error. Another typical occurrence would be if the drive enable is
dropped while current is being output.
When Base Block Checking is off the scope is triggered only by a drive fault.
When active, the scope trace will be triggered additionally by the base block
status.
Sample Time
Select the sample time of the scope trace in 5ms resolution.
Trigger Value
Percentage of the scope trace that is recorded before the trigger occurs with
the remainder of the trace after the trigger.
Last Fault Code
Indicates the last fault code. Refer to Section 6.16 Diagnostics Parameters
DG02 for a text description of the numerical fault code.
4.8.2 Fault Data
Logging
85
LCD Keypad
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