Hi is this delay after the proxy comes on?
Is your CNC a OT-C?
I looked through a ladder I see
TMR - 2 - D0315 (Time Delay For Chuck (5 Sec))
TMR - 3 - D0320 (Time Delay For Chuck (3 Sec))
I do not have an 'L' PMC manual so I can't check but I expect the D indicates it is one of the Diagnostic values you need to change. ??