SE2L User’s Manual (SE9Z-B1865)
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3.6 Incremental encoder
In SE2L there are 2 pairs of encoder input terminals for connecting 2 units of dual channel incremental
encoder signals. Area will be switched depending on the encoder speed. Direction of travel is detected by
encoder's phase A and phase B signals having the phase difference of 90°. Speed and rotating direction of
both encoders are constantly monitored to detect abnormal travel and stop the AGV.
Incremental encoder output signals should be connected to the respective input terminals of SE2L. There
are two patterns of signals generated by the combination of Phase A and Phase B of encoders depending on
the direction of travel (Figure 3-10). In the first pattern, Phase B is 90 degrees ahead of Phase A wherein, at
the rising edge of Phase A, state of Phase B is “H”. This pattern is considered as positive direction (forward
motion). In the second pattern, Phase B lags behind Phase A by 90 degrees and the state of Phase B at the
rising edge of Phase A is “L”. This is considered as negative direction (backward motion).
Figure 3-10 Input signal through Incremental encoder
Summary of Contents for SE2L Series
Page 1: ...SE9Z B1865 SE2L Series Safety Laser Scanner User s Manual ...
Page 100: ...SE2L User s Manual SE9Z B1865 99 Figure 7 31 b Function Figure7 31 c Area ...
Page 143: ...SE2L User s Manual SE9Z B1865 142 13 External dimension 13 1 SE2L H05LP mm ...
Page 144: ...SE2L User s Manual SE9Z B1865 143 13 2 SE2L H05LPC mm ...
Page 145: ...SE2L User s Manual SE9Z B1865 144 13 3 Base mounting bracket mm ...
Page 146: ...SE2L User s Manual SE9Z B1865 145 13 4 Rear mounting bracket mm ...
Page 147: ...SE2L User s Manual SE9Z B1865 146 13 5 Simple base mounting bracket mm ...
Page 149: ...SE2L User s Manual SE9Z B1865 148 13 7 Simple rear mounting bracket Long type mm ...
Page 150: ...SE2L User s Manual SE9Z B1865 149 13 8 Cover Protection Bracket mm ...
