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Rockwell Automation 1403-DM_LM_MM Powermonitor II Instruction Sheet User Manual

Page 55

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General Operation

4-19

1403-IN001A-US-P

Under Reverse Setpoint

An under reverse setpoint is the same as an under
forward setpoint, except the magnitude of the
parameter being monitored must fall below the
“Setpoint Low Limit” in the negative direction.

When the magnitude of the parameter being
monitored falls below the “Setpoint Low Limit” in
the negative direction (and stays below the limit) for

a period of time greater than the “Setpoint Action
Delay,” the setpoint becomes active. An under
forward setpoint becomes inactive when the
magnitude of the parameter being monitored exceeds
the “Setpoint High Limit” in the negative direction
(and stays over the limit) for a period of time greater
than the “Setpoint Release Delay.”

Figure 4.7 Under Reverse

Equal Setpoint

An equal setpoint becomes active when the
parameter being monitored equals the “Setpoint High
Limit” for a period of time greater than the “Setpoint
Action Delay.” An equal setpoint becomes inactive
when the parameter being monitored does not equal
the “Setpoint High Limit” for a period of time greater
than the “Setpoint Release Delay.” The “Setpoint
Low Limit” is not used for equal setpoints.

The equal setpoint is most useful for non-numeric
values, such as phase rotation, IEEE-519 status, and
status input states.

Not Equal Setpoint

A not equal setpoint becomes active when the
parameter being monitored does not equal the
“Setpoint High Limit” for a period of time greater
than the “Setpoint Action Delay.” An not equal
setpoint becomes inactive when the parameter being
monitored equals the “Setpoint High Limit” for a
period of time greater than the “Setpoint Release
Delay.” The “Setpoint Low Limit” is not used for not
equal setpoints.

The not equal setpoint is most useful for non-numeric
values, such as phase rotation, IEEE-519 status, and
status input states.

Setpoint Activated

Setpoint Deactivated

Parameter
Value

Setpoint
Low Limit

Setpoint
High Limit

Setpoint Action Delay

Setpoint

Release Delay

<

Setpoint

Release Delay

Time (s)