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Usage limits (IEC 60974-1)
The use of a welder is typically discontinuous, in that it is made
up of effective work periods (welding) and rest periods (for the
positioning of parts, the replacement of wire and underflushing
operations etc. This welder is dimensioned to supply a I
nominal current in complete safety for a period of work of X%
of the total usage time. The regulations in force establish the
total usage time to be 10 minutes. The work cycle is conside-
red to be X% of this period of time. If the permitted work cycle
time is exceeded, an overheat cut-off occurs to protect the com-
ponents around the welder from dangerous overhea ting. Inter-
vention of the overheat cut-off is indicated by the lighting up of
yellow thermostat LED (Pos. 2, Fig. A). After several minutes
the overheat cut-off rearms automatically (and the yellow LED
turns itself off) and the welder is ready for use again.
How to lift up the machine
The weld machine has a strong handle all in one with the frame,
used for transporting the machine manually only.
The welding machine is also equipped with an adjustable and
removable shoulder strap that allows for easy and comfortable
carrying on the shoulder.
NOTE: These hoisting and transportation devices conform to
European standards. Do not use other hoisting and transporta
tion systems.
Open the packaging
The system essentially consists of:
• ROCK 160 - 200 weld unit.
• Accessory kit consisting of ground cable and electrode hold-
er.
• Adjustable and detachable shoulder strap that allows for easy
and comfortable carrying on the shoulder.
Upon receiving the system:
• Remove the welding generator and all the relative accesso-
ries.
• Check that the weld machine is in good condition, if not report
any problems immediately to the seller-distributor.
• Make sure all ventilation grilles are open and that no foreign
bodies are blocking the air circulation.
Serial number
The welding machine's serial number is shown on the unit's
data plate.
The serial number provides the key to tracing the production lot
applicable to the product. The serial number may be essential
with ordering spare parts or planning maintenance.
Installation
The installation site for the system must be carefully chosen
in order to ensure its satisfactory and safe use. The user is re-
sponsible for the installation and use of the system in accord-
max
ance with the producer's instructions contained in this manual.
2
Before installing the system the user must take into consider-
ation the potential electromagnetic problems in the work area.
In particular, we suggest that you should avoid installing the
system close to:
• Signalling, control and telephone cables.
• Radio and television transmitters and receivers.
• Computers and control and measurement instruments.
• Security and protection instruments.
Persons fitted with pace-makers, hearing aids and similar
equipment must consult their doctor before going near a ma-
chine in operation. The environment in which the equipment
is installed must be suitable for the casing's protection level.
This system is cooled by means of the forced circulation of air,
and must therefore be placed in such a way that the air may
be easily sucked in and expelled through the apertures made
in the frame.
The welding unit is characterised by the following levels:
• Protection level IP 23 S indicates that the equipment can be
used both indoors and outdoors.
• Use class
means that the equipment can be used in con-
ditions subject to heightened electrical shock.
Connection to the electrical supply
Before connecting the welder to the electrical supply,
check that the machine's plate rating corresponds to the
supply voltage and frequency and that the line switch of
the welder is in the "O" position.
Use the welder's own plug to connect it up to the main pow-
er supply. Proceed as follows if you have to replace the plug:
• 2 conducting wires are needed for connecting the machine
to the supply
• The third, which is YELLOW GREEN in colour is used for
making the "EARTH" connection.
ROCK 160 - 200 works with circuit breaker or fusible power
switches.
Table 2 shows the capacity values that are recommended for
fuses in the line with delays.
NOTE 1: Any extensions to the power cable must be of a suita
ble diameter, and absolutely not of a smaller diameter than the
special cable supplied with the machine.
NOTE 2: It is better not to connect the welder to motor genera
tors, as the voltage supplied by these systems is well known
for its instability.
Model
Power input @ I
Delayed fuse (I
2
Duty cycle @ X% (40°C)
Supply connection cable
Length
Section
Electrode holder and ground cables
Length
Section
9
Max
kVA
2
@ 100%)
A
A
m
mm
m
mm
Table 2
ROCK
160
200
8,2
10,4
16
25
160
200
(20%)
(10%)
2,5
2
3×2,5
3
2
16
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