Unipulse F320 - F320 Block Diagram

14.SELF-CHECK FUNCTION AND INITIALIZATION
105
14-3. F320 Block Diagram
+EXC
-EXC
+SIG
-SIG
Low-pass
Fillter
×
100
A/D
Buffer
F.G
FRAME
Serial
Port
Port
Port
Port
Serial
Port
RAM
4Kbyte
MPU 16bit
Flash
ROM
128K
Watch
Dog
NOV.RAM
1024bit
Display
HOLD DZ
2Line 2Line
D/A
（
I
）
D/A
（
V
）
BCD
HI LO
CPU
+9V -9V +5V
VOL OUT
GND
+5V
VCC
Isolation
Power Supply Unit
LED
+12V
RS-485
Option
Allowable number of
Indicates the insulation
FRAME
F.G
Excitation
Vo l t a g e
Referrence
Vo l t a g e
Conversion
AC100 to 240V
(at AC spec.)
or
DC12 to 24V
(at DC spec. Designated
when it is shipped.)
Key Input
by Photo coupler.
options equipped: 1
Control
input
Control
output