Life GE UNI R - Fuses and Protection; Frontal Fuse Replacement

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3.4
Fuses
3.4.1
Frontal fuses
The frontal fuse is the fuse on the primary 230 volt power supply, and provides protection against the overload
on the auto-transformer, external light circuits and operator.
Technical features: miniature fuse 5x20 T3,15A, IEC 60127 or EN 60127 certifi ed.
If, despite being powered, the automation does not work, it is necessary to check the operator control unit’s frontal
fuse. This operation must be performed by a PROFESSIONAL FITTER.
Before replacing the fuse, it is essential to discover the reasons that cause it to blow: only then can the new fuse
be placed in the fuse clip.
a) Disconnect the electric power supply line.
b) Press and simultaneously rotate the fuse clip towards the left.
c) Remove the fuse and replace with a new one.
d) Insert the clip on the fuse and relock by pressing and rotating towards the right.
The fuse must be IEC 60127 or EN 60127 certifi ed
3.4.2
Card fuses
There is an internal fuse applied to the card: F1, for protecting the electronic board’s power supply.
•
Technical features F1: miniature fuse 5x20 T1,2A, IEC 60127 or EN 60127 certifi ed.
N.B. no intervention is authorised on the two card fuses.
3.5
Preset functions F1 & F2
It is possible to select two standard function parameter settings. To enable them
1. Press
B
.
2. Press
or
.
Default parameters
Function
















GREEN LED ON
RED LED ON
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
2
5
The
FORCE
function is not altered by the loading of the parameters
and
.
Function Default parameters
FORCE
6
7
8
9
F1
F2
10
7
8
9
2
5