Learning Installation Mode And Learning Duration - Siemens 9410RC User Manual

9410 series

Learning installation mode and learning duration

110
Feature
Setpoints (Alarms)
Sag
Swell
You can configure learning for manual or automatic mode.
There are two learning installation modes:
• Manual: the meter learns the applicable values but does not begin using the
learned values. The learned values are recorded for review, and you can decide to
use the learned values or adjust them as required before manually implementing
the learned values.
• Automatic: the meter learns the applicable values and begins using those learned
values automatically at the end of the learning period. If a learned value is invalid,
the meter does not apply the value, but the value is recorded in the event log.
You can configure the maximum learning duration. The actual learning duration may
vary, depending on the stability of the system. If the system is stable for a period equal
to one quarter of the maximum learning duration, learning is complete; otherwise, the
learning period will be the maximum learning duration.
Example: Setpoint learning duration in a stable system
In this example, the learning duration is 30 days. When the system is stable for 7.5
days (one quarter of 30 days) learning is complete.
115%
110%
105%
100%
95%
90%
85%
Maximum duration remaining
Stable learning time
Example: Setpoint learning duration in an unstable system
In this example, the learning duration is 30 days. Because the system is not stable for
7.5 days (one quarter of the 30 days) learning is complete at the end of the maximum
learning duration.
Values
High limit
Low limit
Sustain until ON
Sustain until OFF
Voltage sag limit
Voltage swell limit
Le a rne d s we ll limit = 110%
Logging
Le a rne d s a g limit = 87%
7EN05-0336-01