Schneider Electric HRB1684301-01 user manual Under setpoint, ΔT2 ΔT3 EV1 EV2

Chapter 10—Alarms PowerLogic™ PM5500 series user manual

A

B

Max2

Max1

ΔT1

ΔT2

ΔT3

EV1 EV2

APickup setpoint

BDropout setpoint

∆T1 Pickup time delay period (in seconds)

EV1 Start of alarm condition

∆T2	Dropout time delay (in seconds)
EV2	End of alarm condition
∆T3	Alarm duration (in seconds)
Max1	Maximum value recorded during pickup period
Max2	Maximum value recorded during alarm period

The meter records the date and time when the alarm event starts (EV1) and when it ends (EV2). The meter also performs any task assigned to the event, such as operating a digital output. The meter also records maximum values (Max1, Max2) before, during or after the alarm period.

Under setpoint

When the value falls below the pickup setpoint setting and remains there long enough to satisfy the pickup time delay period (∆T1), the alarm condition is set to ON. When the value rises above the dropout setpoint setting and remains there long enough to satisfy the dropout time delay period (∆T2), the alarm condition is set to OFF.

B

A

ΔT3

ΔT2

ΔT1

Min1

Min2

EV1

APickup setpoint

BDropout setpoint

∆T1 Pickup delay period (in seconds)

EV1 Start of alarm condition

	EV2
∆T2	Dropout time delay (in seconds)
EV2	End of alarm condition
∆T3	Alarm duration (in seconds)
Min1	Minimum value recorded during pickup period
Min2	Minimum value recorded during alarm period

The meter records the date and time when the alarm event starts (EV1) and when it ends (EV2). The meter also performs any task assigned to the event, such as operating a digital output. The meter also records minimum values (Min1, Min2) before, during or after the alarm period.

90 HRB1684301-01