The device uses electronic components that are sensitive to
handle the moving part of the equipment and come into contact
with the electronc circuits, must take preventive measures to
avoid damaging the relay:
- before removing the moving part, the
same potential as the unit by touching the housing (for instance,
- lay the element on surfaces that are antistatic or feature zero
As far as the following action is possible, do
causing mechanical and electrostatic
damages to the protection.
Although protective relays are generally of
they require to be handled with particular care before being
installed on site. They must be carefully packed and unpacked
without applying any force and using suitable tools.
Once supplied, the relays must be throughly inspec
that they have been not damaged during the transp
must be stored in places free from dust or moisture, in their
Storage temperature: -25°C + 80°C.
8.3 Assembling and connection
- Place the device into the hole of the pane
by fastening the four screws (see fig. 4).
- Connect the ground screw of
the device to the panel's grounding
system through a cable of suitable gauge (>4mm
- Perform the wiring using the screw or faston couplings of the
interface terminal boards. In order to guarantee the terminal
board the protection class IP20 required, during the faston wiri
the cover lid must be placed before the faston is connected to the
relay. During the screw wiring the side fins
g to the wired terminals must be removed or bent.
The assembling as well as the connections shall be workmanlike
9. SETTING THE UNIT AT WORK
The device is supplied with factory s
ettings and configurations as
indicated in tables A, B and C
These settings may prove not to suit the
unit is to be installed. Therefore, the device must be reset: to this
aim, refer to tables D, E and F for customer's use as support to
develop a customised setting scheme.
During the equipment tests and start-up the general safety
electrical systems must be complied
with the above-mentioned regulations
might cause harm to personnel or damage to property. All the
inspections and tests shall be carried out by
9.2 Checking nameplate ratings
Make sure that the equipment ratings are consistent w
- output relays normally energized or normally de-energi
cordless plug placed on the board (see fig. 2a, 2b)
- the presence of the special S6 cordless plug, see fig.1, if the
n board is included and the network is available.
, or after it has been pulled out of
its casing (capacitor storage).
Feed the device with auxiliary voltage. On
starting the device after
a long time of power failure, the device can show a fault of 'L' typ
remaining functions: please, update DATE
running and the device settings are unknown, in
order to avoid any malfunctioning, it is necessary to inhibit the
device operation, before using the auxiliary voltage,
paragraphs 4.12 and 6.1.13).
Ug (generator side) rated voltages and set the TV primary voltage
provided for in the design plan.
As the device is provided with a self-monitoring system, all
hardware and software failures are automatically signalled: this
makes it useless to control the thresholds for accuracy, which
can however be tested by making reference to the stated
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