ATAGO 3574, Инструкция по эксплуатации

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21
(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 limiter circuit.
①
Dedicated cable (option) specifications (Fig. 8-6 and Fig. 8-7)
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 This pin is not applicable to this unit.
5 White This pin is not applicable to this unit.
6 Green This pin is not applicable to this unit.
Fig. 8-6
Fig. 8-7
②
High- and low-limiter output typical applications
a. Drive a relay b. Turn on a LED
c. Feed a sequencer or the like at the signal level (TTL)
※
R (resistance) and V+ are not necessary if the input to a sequencer or the like is pulled up.
Table 8-4 Recommended photocoupler operating conditions (Type TLP523-2)
Parameter Symbol Minimum Typical Maximum Unit
Supply voltage V cc
－
5 24 V
Forward current I F
－
16 20 mA
Collector current I c
－ －
40 mA
Operating
temperature
T opr - 25
－
85
˚C
29.8m
m
φ12.6
Photocoupler
Relay coil
V
+
Photocouple
r
LDE R
V+
50.0mm
Wire number plug front
view
4
1
2 5
6
3
Photocoupler
Sequencer
COM
V+
R