Yaskawa Matrix Converter - Manual (Page 292)

Digital Operator Functions
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„ Disabling the STOP Key
If b1-02 (Operation Method Selection) is set to 1, 2, or 3, the Stop Command from the STOP key on the digital
operator is an Emergency Stop Command.
Set o2-02 to 0 to disable Emergency Stop Commands from the STOP key on the digital operator.
„ Disabling the LOCAL/REMOTE Key
Set o2-01 to 0 to disable the LOCAL/REMOTE key on the digital operator. You cannot switch MxC reference
inputs set using reference inputs from the digital operator, b1-01 (Frequency Reference Selection), or b1-02
(Run Command Selection).
„ Initializing Parameters Back to Default Values
You can save the MxC parameter set values that you have changed as parameter initial values. Change the set
values from the MxC defaults, and then set o2-03 to 1.
If, however, “Out of Memory MAX Param Change” is displayed on the operator when changes in the settings
of the parameters are saved as initial values, do not attempt to register any further changes as initial values.
Set A1-03 (Initialize Parameters) to 1110 to initialize the MxC parameters using the user-set initial values in
memory. To clear the user-set initial values in memory, set o2-03 to 2.
„ Setting the Frequency Reference using the UP and DOWN Keys without Using the
ENTER Key
Use this function when inputting frequency references from the digital operator. When o2-05 is set to 1, you
can increase and decrease the frequency reference using the up and down arrow keys without using the
ENTER key.
For example, enter the Run Command using a 0 Hz reference, and then continuously press the UP key to
increase the frequency reference by 0.01 Hz only for the first 0.5 s, and then by 0.01 Hz every 80 ms for 3 s
thereafter. Press and hold down the up arrow key for 3 s minimum to reach the maximum output frequency 10
s after that. The frequency reference that has been set will be stored in memory 5 s after the up or down arrow
keys are released.
„ Clearing Cumulative Operation Time
Set the cumulative operation time initial value in time units in parameter o2-07. Set o2-07 to 0 to clear U1-13
(MxC Operating Time).
„ Clearing MxC Cooling Fan Operation Time
Set the fan operation time initial value in time units in parameter o2-10. Set o2-10 to 0 to clear U1-40 (Cooling
Fan Operating Time).