2. Setup
CNT32-4MT(LPCI)
25
Check method 3: Checking the Board using an external device
The diagnosis program tests the
board
actually connected to an external device to check whether count
values are displayed correctly and whether signals are successfully turned on/off. See the following
section about how they are connected.
If the
board
fails to perform counting normally by check method 3, the
board
may be connected
incorrectly or the connected device may not be compliant with the specifications.
Connection diagram
Use the following connection to connect to CH0 via a PCA68PS-**P cable and a rotary encoder with a
TTL level output/open-collector output. For connection to another channel and for the details on signal
position , see Chapter 3 "External Connection".
< Sample connection to rotary encoder (channel 0) >
Shield
Encoder
GND (35 pin)
(Connector pin No.)
Phase-A(1 pin)
Phase-B(2 pin)
Phase-Z (3 pin)
+3.3V output (34 pin)
Pull up (32 pin)
0V
Phase-A
Phase-B
Power supply
Phase-Z
Pin numbers in the diagram shows those of connector on the board.
Figure 2.5. Connection diagram
