Analog Output Wiring - NAiS FP0 Series Hardware Manual

Analog I/O Unit
4.5 Wiring
4.5.2

Analog Output Wiring

Voltage output
V 0
I 0
COM
IN
V 1
I 1
V
I
OUT
COM
Connect output instrument between OUT/V
and OUT/COM terminal.
. Notes
D Always make sure the switch settings and the terminal base wiring
connections match. For output, in particular, if the settings and the
wiring connections are wrong, the control unit will output values like
those shown below, even in the PROG. mode. (For information on
switch settings, see * section 4.1.1.)
Item
0 mA output based on current
range setting
0 V output based on voltage
range setting
D DA internal block diagram
A voltage amplifier and current amplifier are connected in parallel
to a single DA converter IC.
Terminal
Also, the digital value that is sent to the DA converter IC to achieve
a voltage output of 0 V is different from that input to the DA
converter IC to achieve a current output of 0 mA.
As a result, if the voltage output is set to 0 V, 10 mA is output from
the current output terminal, and conversely, if the current output is
set to 0 mA, - 10 V is output from the voltage output terminal (see
tables the next page).
4 - 14
Output
instrument
Voltage amplifier
Current amplifier
Current output
V 0
I 0
COM
IN
V 1
I 1
V
I
OUT
COM
Connect output instrument between OUT/I
and OUT/COM terminal.
Output terminal (OUT)
Current terminal (I) Voltage terminal (V)
0 mA
10 mA
DA converter
Matsushita Automation Controls
FP0
Output
instrument
- 10 V
0 V
Microcomputer
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