IS-300A
4. How to Operate Screens
4-11
a caution signal is output after completion of welding. (See (5) MONITOR
SET Screen.)
(d) WELD TRANS FREQ
Sets the frequency of the welding transformer to be used. It can be set 600 Hz to
3000 Hz in units of 100 Hz.
When setting the output frequency of the inverter power supply, check the
frequency of the welding transformer. Do not use the welding transformer
whose frequency is higher than the output frequency of the inverter power
supply. It will cause malfunction.
(e) VALVE #
Two valves (welding heads) can be connected to the Power Supply. Use this
setting to select which of the two valves to use.
(f) CURRENT RANGE
Selects the current range in accordance with the welding current to use.
Range Current setting range Power setting range
20 kA 001.0 to 020.0 kA 001.0 to 020.0 kW
10 kA 00.50 to 09.99 kA 00.50 to 09.99 kW
05 kA 00.05 to 05.00 kA 00.05 to 05.00 kW
(g) MAX CURRENT
Sets the maximum current of transformer.
The setting range is 1 kA to the setting of CURRENT RANGE.
(h) WELD ON/OFF
One of the settings required to turn on the READY lamp of the Power Supply.
ON: WELD ON OFF: WELD OFF
(i) VOLT COMPENSATION (effective when PULSE LIMIT is set)
Compensates the pulse limit for the fluctuation in the power-supply voltage on
the primary side. This function is valid only in the primary constant-current peak
value control (PLM).
However, the compensation is for power-supply voltage prior to welding, and
voltage fluctuation during welding is not reflected. The setting range is 000 to
100%.
Correction value = 100% at 200 V AC
･At 190 V AC (-5%) of power-supply voltage, compensation is made so that the
limit value of PULSE LIMIT will go up 5%.
･At 210 V AC (+5%) of power-supply voltage, compensation is made so that the
limit value of PULSE LIMIT will go down 5%.
Correction value = 50% at 200 V AC
･At 190 V AC (-5%) of power-supply voltage, compensation is made so that the
limit value of PULSE LIMIT will go up 2.5%.
･At 210 V AC (+5%) of power-supply voltage, compensation is made so that the
limit value of PULSE LIMIT will go down 2.5%.
DANGER
!
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