Janu
ary 201
9
136 Legrand PDU User Guide
Sensor
status
Color
States shown in
the interface
Description
below lower
critical
"R" < Lower Critical threshold
Alarmed
alarmed
State sensors enter the abnormal state.
OCP alarm
Open
Circuit breaker trips.
-- OR --
Fuse
blown.
Managed vs Unmanaged Sensors/Actuators
To manually manage or unmanage/release a sensor or actuator, see
Peripherals
(on page 130).
Managed sensors/actuators:
Legrand PDU communicates with managed sensors/actuators and retrieves their data.
Managed sensors/actuators are always listed on the Peripheral Devices page no matter they are
physically connected or not.
They have an ID number as illustrated below.
They show one of the managed states. See
Sensor/Actuator States
(on page 136).
For managed 'numeric' sensors, their readings are retrieved and displayed. If any numeric sensor is
disconnected or its reading cannot be retrieved, it shows "unavailable" for its reading.
Unmanaged sensors/actuators:
Legrand PDU does NOT communicate with unmanaged sensors/actuators so their data is not retrieved.
Unmanaged sensors/actuators are listed only when they are physically connected to Legrand PDU.
They disappear when they are no longer connected.
They do
not
have an ID number.
They show the "unmanaged" state.
