Ter Welding Multi 250, Инструкция по эксплуатации

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Instruction Manual
5. PLC DEVICE (POWER LINE CONTROLLER)
On the MULTI single-phase generators equipped with PLC device. The domestic
(inside houses) power supply is normally limitated to 16A: the machine can be used
in such a conditions turning the PLC key, positioned on the rear panel, on 16A.
Note: use an industrial plug ≧25A at maximum power. The PLC key must be
positioned on 25A (industrial applications). Don’t use the 16A plug for indus
-
trial applications.
5.1 PLC function
The MULTI 250K machine is an industrial power source for light/medium applica-
tions; the duty cycle is very high and the inverter architecture allows hight current
rates. When the machine is plugged on a domestic (house) power line, a plug 16A
should be mounted; the input current must be less than 16A in order to avoid the
switching-off of the main switch protecting the power line.
The PLC feature controls the input current, automatically inhibiting the welding pro-
cess when the power input rises the limit of the main line switch (16A).
The power of the machine isn’t reduced, only the welding time (duty cycle) is con-
cerned when the demanded current is highter than the available one.
5.2 PLC display
When the PLC inhibits the welding process, the current supply is breaked
immediately, and the front panel shows the PLC timer count down.
When the timer arrives to 0, the welding job can restart.
Please refer to the plots in order to avoid unexpected welding interruptions when the
machine is used on domestic lines.
6. STANDBY
The machine stops its main functions when it is
not continuosly used, in order to reduce the
power consumption at 10W; the “STANDBY”
icon lights. The fan works only when the machine
needs to be cooled down; during ligth
applications, the fan normally doesn’t work.
The water cooling unit, if any, works only on MIG
process; at the end of the mig welding process, it
works for further 180 sec.
7. VRD - VOLTAGE REDUCTION DEVICE
This feature reduces the output no load voltage <15V.
It increases the safety conditions of the operator: the no load voltage is not dan-
gerous but any contact between human body and live parts may cause a shock
with lost of equilibrium control or similar.
The VRD feature is activated with “VRD” light on. The feature is always “on”: the sys-
tem grants efficient arc stricking even with a no load voltage <15V.
On manual MIG process it becomes automatically “off”.
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Multi 250 - 400K - 500F - 500K - 5000FW - 500MAR e Accessories