19
8-3. Alarm Output (high- and low-limiter output)
The alarm output functions based on the established range of acceptable measurement values.
When a value is detected that falls outside of the acceptable range alarm output is transmitted from
the detection section.
The high-limiter and low-limiter output circuit has a photocoupler with a transistor open collector in
the final stage. See the diagram on the following page before using the li miter circuit.
①
Dedicated cable (option) specifications (Fig.8-6 and Fig.8-7)
Pin numbers 1 to 3 are used for the alarm output.
Pin numbers 4 to 6 are used for switching the scales. Refer to pg. 20, "8-4Switching the Scale
(externally)."
Table 8-3 Lead wire color
Pin number
Cord color
Signal name
1
Brown
High-limiter output
＋
2
Red
Low-limiter output
＋
3
Black
Limiter Com
－
4
Yellow
External Switch
B0
5
White
External Switch
B1
6
Green
External Switch Com
－
Fig.8-6
Fig.8-7
②
High- and low-limiter output typical applications
The high-limiter and low-limiter output circuit has a photocoupler with a transistor open collector in
the final stage. Before using the limiter circuit, see Fig.8-8, Fig.8-9 and Fig.8-10.
a. Drive a relay
Fig.8-8
b. Turn on a LED
Fig.8-9
29.8mm
φ12.6
Photocoupler
Relay coil
V+
Photocoupler
LDE
V+
R
Wire number plug
front view
4
1
2
5
6
3
50.0mm
