The Intended Use; Preparation For Operation - Novatek-electro EM-486 Operating Manual

5 THE INTENDED USE

5.1 PREPARATION FOR OPERATION

5.1.1 Preparation for connection:
– Unpack the unit (we recommend to keep the original packing for the entire warranty period of the unit operation);
– Check the unit for damage after transportation; in case of such damages detection, contact the supplier or
manufacturer;
– Carefully study the Operating Manual (pay special attention to the connection diagram to power the unit);
– If you have any questions regarding the installation of the unit, please contact the manufacturer by telephone
number indicated at the end of this Operating Manual.
5.1.2 General instructions
ATTENTION! THE UNIT IS NOT DESIGNED FOR LOAD COMMUTATION IN CASE OF SHORT CIRCUITS.
THEREFORE THEY SHOULD BE PROTECTED BY AUTOMATIC CIRCUIT BREAKERS (FUSES) WITH
TRIPPING CURRENT NOT EXCEEDING 16 A.
ATTENTION! ALL CONNECTIONS MUST BE PERFORMED WHEN THE UNIT IS DE-ENERGIZED.
Error when performing the installation works may damage the unit and connected devices.
To ensure the reliability of electrical connections you should use flexible (stranded) wires with insulation for
voltage of not less than 450 V, the ends of which it is necessary to be striped of insulation for 5±0.5 mm and
tightened with bootlaces. Recommended cable cross section for connection is not less 1 mm
EM-486 connection to RS-485 bus is made by cable of twisted pair type Cat.1 or higher category. It is recommended
to use the shielded cable, in this case it should be grounded (in accordance with «ANSI/TIA/EIA-485-A-1998»
recommendations).
In case of connection to Ethernet it is necessary to use a cable in a set, or the "twisted pair cable" cable of the
Cat.5e category with the 8P8C (RJ-45) tip. Wires fastening should exclude mechanical damage, twisting and
insulation abrasion of wires.
IT IS NOT ALLOWED TO LEAVE EXPOSED PORTIONS OF WIRE PROTRUDING BEYOND THE
REMOVABLE TERMINAL BLOCK.
For reliable contact it is necessary to perform tightening of screws of removable terminal block with the force
specified in Table 3.1.
EM-486
~ 8 ~
Figure 5.1 – The Unit connection diagram
2
.
F1 – fuse (fuse element), for
current of 0,25 А;
F2 – fuse (fuse element), for
current of 2,5 А;
F3 – fuse (fuse element), for
current of 0,25 А;
Contact "A" is designed
transferring non-inverted signal,
Contact "B" is used for the
inverted signal.
NOVATEK-ELECTRO
for