Thermal Protection - STAMOS S-PLASMA 40 Manual De Usuario

After disconnecting the supply cable, the device may still contain SIGNIFICANT
VOLTAGE.
After turning the device off and disconnecting the power cable, check the voltage on the input capacitor and
ensure the voltage value is zero, otherwise do not touch any element of the device. The capacitors are to be
inspected in accordance with the guidelines in the operation section of this manual.
ELECTRIC SHOCK may be lethal.
Unsecured elements of the rectifier may explode at the moment of turning on the power supply. When using
the rectifier, always use a protective mask and working clothes with long sleeves.
EXPLODING PARTS OF THE DEVICE may cause injury.
Metal splinters during welding constitute a health hazard.
SPLINTERS AND SPARKS may cause injuries.
• Always wear a protective mask with side shield.
• Always wear appropriate protective clothes in order to protect your body.
• Always wear earplugs or other hearing protection in order to prevent the splinters from entering your
ears.
• During welding, the electric arc generates significant amount of visible and invisible radiation (UV and
IR radiation) which may damage eyesight and skin
ELECTRIC ARC RADIATION may damage eyesight and skin.
• Always use face protection (helmet or shield) and eye protection with glass with appropriate tint, acting
as filter and protecting the eyes during cutting.
• Safety standards propose tint no. 9 (no. 8 at minimum) for every current intensity below 300 A. A lower
shield tint may be used if the arc covers the workpiece.
• Always use permitted safety goggles with side shield under the helmet or another protection.
• Use workplace shields in order to protect other people against blinding light or splinters. Warn
bystanders not to look at the electric arc.
• Use protective clothes made of non-flammable and non-conductive material (leather, thick wool or
cotton) and appropriate working footwear.

THERMAL PROTECTION

The thermal protection system is activated when the device exceeds the activation time. It causes the device
to switch off. The status indicator on the front panel glows. The fan works until the device is cooled. After
cooling the device to the operational temperature, it can be restarted.
DUTY CYCLE
The duty cycle is the percentage of the operating time (measured in minutes) of a 10-minute period in
which the machine is used continuously in normal temperature conditions. If the values of the duty cycle
are exceeded, this will trigger the overheat protection function, which stops the machine until it is cooled
down to normal operating temperature. Repeated situations of exceeding the duty cycle values may lead to
serious damage of the machine.
EN
12
Rev. 03.02.2017
CONNECTION DIAGRAM S-PLASMA 40
1
4
2
3
S-PLASMA 40
2
1
3
4
8
5
6
7
1. ON/OFF SWITCH.
2. OVERLOAD / FAULT LED INDICATOR:
a) If the machine has malfunctioned and cannot be operated
b) If the cutting device has exceeded the standard working time the protection mode is initiated and
the machine will stop functioning. This means that the machine is now being cooled in order to be
able to restore temperature control again after the device has overheated. Therefore the machine is
stopped. During this process, the red warning light on the front panel lights up. In this case it is not
necessary to remove the power plug from the socket. The ventilation system may be left on in order
to enhance the cooling of the machine. When the red light goes dark, this means that the temperature
is now down to the normal level and the unit can be put back into operation.
3. CUTING CURRENT ADJUSTING KNOB
4. Gas Delay - Setting the time of the air flow after the cutting torch (2.5s or 5s)
5. GROUNDING CABLE CONNECTION.
6. Power supply connection to the plasma torch cable.
7. GROUNDING:
8. Compressed air connection to the plasma torch cable
Rev. 03.02.2017
EN
1. supply connection
2. workpiece
3. ground cable connector
4. plasma cutting clamp
13