Circutor RECmax Lpd, Instruction Manual

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8
RECmax Lpd
Instruction Manual
3�2�- INSTALLATION
While the device is connected, the terminals, opening the cover or removing elements
can expose parts that are hazardous to the touch. The device must not be used until
the installation process is complete.
The
RECmax Lpd
must be installed inside an electric panel or enclosure and mounted on a DIN rail
46277 (EN 50022).
The device has connection indicator LEDs, indicating the presence of voltage. Even if these LEDs are
not on, the user must still verify that the device is disconnected from all power supplies.
The device’s auxiliary supply must be protected with fuses or protection elements appropriate for the
power supply range and consumption. Preferably the protection should consist of a small circuit break-
er allowing the disconnection of the unit from the power supply in case of servicing.
3�2�1�- MEASUREMENT OF THE EARTH LEAKAGE CURRENT I
Δ
The earth leakage current must be measured using the WG/WGS/WGC earth leakage transformers
from
CIRCUTOR
.
The transformer terminals which should be connected to terminals 7-8 of the
RECmax Lpd (
Table 4
),
are:
Table 3: Earth leakage transformer terminals�
Earth leakage transformer to connect in the RECmax Lpd
Model Terminals
WGC
S1 - S2
WGS - WG
1S1 - 1S2
The external earth leakage transformer is necessary for the device to operate cor-
rectly. Even if its installation only appears linked to the correct working of the earth
leakage protection, failing to install it will affect other functions of the device, such
as the reclosing and display of parameters on the RECmax Lpd display.
An incorrect or faulty connection of the earth leakage transformer means loss of
the earth leakage protection and possible risk of electric shock.
When using the
WG/WGS
earth leakage transformers, the 2S1-2S2 terminals should
not be connected to the RECmax Lpd nor should be short-circuited. They should be
left at open circuit.
In case of a faulty connection of the earth leakage transformer or if this transformer is not compati-
ble with the
RECmax Lpd,
the screen shown in
Figure 1
will appear.