Document UT-MT-0872-EN
Page 9 of 31
Edition 27/09/2018
LIMS INSTRUCTION MANUAL
The sign is also equipped by an external disconnecting switch (main switch), which allows to light
off the sign and at the same time short circuit the isolating transformer. The main switch permits
to light off the sign without disconnecting it from the series circuit.
The main switch MUST BE OPERATED ONLY WITH THE CCR OFF.
In general the CCR must be turned off before any intervention on the sign.
See Figure 11 and Figure 12 for the two types of wiring diagram of the signs (without and with
stabilization circuit).
Low Voltage supply (230 V – 50/60 Hz) (OPTION)
An option is available that permits to feed the sign through a 230Vac supply network.
In this case the luminance level is constant and the monitoring of the sign status is not available.
3.1.6
Protection earthing
On the aluminium box containing the electronics, an earthing stud is available (see Figure 6).
FOR SAFETY PURPOSES
, A CABLE OF 4 MM
2
MINIMUM SECTION, CONNECTED TO
THE EARTHING SYSTEM OF THE AGL CIRCUIT
MUST BE CONNECTED
TO THE
EARTHING STUD OF THE SIGN.
