Contec AO-1608L-LPE, Руководство пользователя

Страница: 37 / 77

3. External Connection
30
AO-1616L-LPE, AO-1608L-LPE
Analog Output Signal Connection
This section shows how to connect the analog output signal by using a flat cable or a shielded cable.
The following figure shows an example of flat cable connection.
Connect the signal source and ground to the CN1 analog output.
Figure 3.4. Analog Output Connection (Flat Cable)
The following figure shows an example of shield cable connection. Use shielded cable if the distance
between the signal source and board is long or if you want to provide better protection from noise. For
each analog input channel on CN1, connect the core wire to the signal line and connect the shielding to
ground.
Figure 3.5. Analog Output Connection (Shield Cable)
*1 The number of channels depends on each board.
The AO-1616L-LPE has 16 channels; the AO-1608L-LPE has 8 channels.
- When the power supply is turned on, the output voltage of all channels becomes 0 V.
- If the board or the connected wire receives noise, or the distance between the board and the target
is long, data may not be outputted properly.
- For analog output signal, the current capacity is ±3mA (Max.). Check the specification of the
connected device before connecting the board.
- Do not short the analog output signal to analog ground, digital ground, and/or power line. Doing
so may damage the board.
- Do not connect an analog output signal to any other analog output, either on the board or on an
external device, as this may cause a fault on the board.
Analog Output 0..15*1
Analog Ground
BOARD CN1 Cable Target
Analog Ground
Shield cable
Analog Output 0..15*1
BOARD CN1
Target
CAUTION