17
Appendix 1 Alarm items and units of relative alarm threshold
No.
Alarm item
Unit of alarm value
0
U--H
（
High voltage alarm
）
or
I--H
（
High current alarm
）
0.1V or 0.001A
1
U--L
（
Low voltage alarm
）
or
I--L
（
Low current alarm
）
2
dI1.H
（
Relay activates when first digital input
conducts.
）
Alarm value is not
needed to be set in
relay linkage mode.
3
dI1.L
（
Relay activates when first digital input
opens.
）
4
dI2.H
（
Relay activates when second digital
input conducts.
）
5
dI2.L
（
Relay activates when second digital
input opens.
）
6
dI3.H
（
Relay activates when third digital input
conducts.
）
7
dI3.L
（
Relay activates when third digital input
opens.
）
8
dI4.H
（
Relay activates when fourth digital
input conducts.
）
9
dI4.L
（
Relay activates when fourth digital
input opens.
）
Summary of Contents for PA19 Series
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