This error indicates the Mode word was set wrong. When the Gear Mode bit is selected, bits 4-6 of the mode word select the gearing master. The following are reasons this error may occur:
An axis cannot be geared to itself.
An axis cannot be geared in a loop. For example, axis 0 cannot be geared to axis 1 if axis 1 is geared to axis 0.
An axis cannot be geared to an auxiliary pressure or force axis.
In RMCWin, use the Popup Editor on the Mode word to select a valid gear master axis.
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