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9.2. To Have More Advanced Operation
9.2.1. Position Scale
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The ESA13 Driver Unit has a position scale for positioning and overtravel limit.
9.2.1.1. Resolution
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The Motor resolver has teeth for detecting its position, and each tooth, whose pitch is 4.096 mm,
is digitally divided into 4096. In other words, the resolution of Motor position detection is 1
micrometer per pulse.
9.2.1.2. Direction of Position Scale
!
Caution : For your safety, the direction of the hardware overtravel limits are fixed
to the following regardless the DI setting :
OTP : PLS direction
OTM : MNS direction
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The direction of position scale counting can be switched by the DI command.
Table 9-6
DI setting
PLS direction
MNS direction
DI0
*
Plus direction
Minus direction
DI1
Minus direction
Plus direction
* : Shipping set
Figure 9-13 : DI0 (shipping set)
Connector
Minus direction
Slider
OTM
OTP
Plus direction
Figure 9-14 : DI1
Connector
Minus direction
Slider
OTP
OTM
Plus direction
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