Inovance H3U Series - H3 U-PM Motion Control Model; High-Speed Counter

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5 High-speed Input 5.3.1 High-speed Counter
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PM Motion Control Model
5.3.1 High-speed Counter
H3U-PM model has three-channel high-speed inputs. Each channel has two differential inputs, which
correspond to the PLC inputs Ax+/-, Bx+/- (x: 1, 2, and 3 indicating X, Y, and Z axes respectively). The three
high-speed counters integrated within the PLC correspond to three-channel input counters as follows:
High-speed Counter
C252 C253 C254
Input Channel X axis Y axis Z axis
1
)
Conguration of the Input Mode
H3U-PM high-speed counters support pulse+ direction, A/B phase, and CW/CCW high-speed pulse
counting by conguration of the input mode of input channels with special SD elements.
X axis SD60
0: Pulse+Direction
1: A/B phase
2: CW/CCW
Y axis SD160
Z axis SD260
When the input mode is set to A/B phase, by enabling quadruplicated frequency, A/B phase counters can
count at a doubled or quadruplicated frequency.
A/B Phase Counter
C252 C253 C254
Enabling quadruplicated frequency M8196 M8197 M8198
2
)
Notes to the Input Mode
Bx
A
x
Pulse+ direction counting
+1
+1
+1 -1
-1
-1
Bx
A
x
A/B phase counting up at a doubled frequency
Bx
Ax
A/B phase counting down at a doubled frequency
+1
+1
+1 -1
-1
-1