36
Functioning examples of the working relays RL1 and RL2.
If the thresholds are enabled or not and depending from the set trigger level of each, you can
have four different functioning modes.
1. Only the
Act above
(high) threshold is enabled.
The relay is energised when the associate measurement exceeds threshold
A
, and de-energised
when the measurement falls below threshold
A – H
.
2. Only the
Act below
(low) threshold is enabled.
The relay is energised when the associate measurement falls below threshold
B
, and de-
energised when the measurement exceeds threshold
B + H
.
A
A-H
B
B+H
Summary of Contents for HD2817T Series
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