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8 OUTPUT MODULE
8.2 Ball Screw
The ball screw is used to make a machine connected to servomotor operate linearly.
This section describes the ball screw operation and parameters required to use ball
screws.
8.2.1 Operation
(1) Operation
(a) The ball screw is controlled with the speed that the speed/travel value of
drive module multiplied by a gear ratio of transmission module, and the
travel value is output.
The speed/travel value of drive module transmitted to the ball screw is
commanded to the servo amplifier.
Drive module
Clutch
Ball screw
Gear(Gear ratio)
(b) When a clutch is used, the ball screw is controlled at clutch ON.
(2) Control details
(a) Feed current value is continued, even if it switches from the real mode to
virtual mode/from the virtual mode to real mode.
(b) Backlash compensation processing is continued with the settings value of
fixed parameters, even if it switches the real/virtual mode.
(c) The travel value per pulse is controlled with the travel value per pulse in the
fixed parameters.
(Ball screw speed)
= (Drive module speed [PLS/s])
(Gear ratio) [PLS/s]
(Ball screw travel value) = (Drive module travel value [PLS])
(Gear ratio) [PLS]
Содержание Q Series
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