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Hitachi AN081804-1 Application Note page 6

Low current trip function for pumping applications

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SJ300 Setup
Since the intelligent outputs are solid state and share a common connection internally,
the SJ300 setup is slightly different. Table 2 shows the SJ300 setup. The wiring diagram
is below. Instead of using a logical AND of the two output signals, we use logical OR,
which is achieved by paralleling the outputs as shown. We then invert the two output
signals ([OL] and [FA1]) and invert the [EXT] input versus the setup for L300P. The
resulting Boolean logic provides the identical functionality.
Table 2
Parameter
C005
Value
12
Hitachi America, Ltd.
C015
C021
C022
01
01
03
WIRING DIAGRAM
SJ300
Inputs
1
2
3
4
5
CM1
© 2004 Hitachi America, Ltd.
C031
C032
C040
01
00
00
Outputs
12
11
COM
C041
Desired
Low Current
Threshold
Level (A)*
Page 6

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