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10
Setpoints/Alarms
10-2
Figure 10-1. Setpoints 1 & 2 Action (Setpoint at 100 with 4% hysteresis)
These two setpoints have selectable single-sided hysteresis. When used as
alarms, the action is immediate (unless a delay is programmed) going into
the alarm zone but turning off is deferred (if latching is not programmed) by
the hysteresis amount.
Figure 10-2. Setpoints 3 & 4 Action
(for Low Alarm with Relay on at -100, relay off at -96 with a hysteresis of 4)
You are now able to program the setpoint features (as described in the
following sections).
TIME
HYSTERESIS
ON
OFF
ON
OFF
SIGNAL
LEVEL
94%
98%
100%
SP3 OR SP4
VALUE
96%
102%
104%
TIME
HYSTERESIS
ON
OFF
ON
OFF
OFF
SIGNAL
LEVEL
98%
100%
102%
SP1 OR SP2
VALUE
Содержание DP461-S
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