CHAPTER 3: USING PROGRAMMING FUNCTIONS
IS-300CA INVERTER POWER SUPPLY
3-30 990-418
The WE2STOP signal shuts off current immediately when input during the WE2 period,
switching the sequence to COOL2. The WE2STOP signal shuts off current immediately after
the WE2 starts (the current is supplied for about 1 cycle) when input before the WE2 period,
switching the sequence to COOL2. The WE2STOP signal will not shut off current if input during
the WE3 period.
The WE3STOP signal shuts off current immediately when input during the WE3 period,
switching the sequence to HOLD. The WE3STOP signal shuts off current immediately after the
WE3 starts (the current is supplied for about 1 cycle) when input before the WE3 period,
switching the sequence to HOLD.
When the welding stop signal is input before the start signal is received, the welding stop error
occurs.
When
WELD STOP OFF TIME is set, the current is supplied for the time period in WE1/2/3.
This weld time is the WELD repetition time except for the INT time.
EXAMPLE: When WELD STOP OFF TIME: 60ms, WELD: 15ms, INT: 10ms, and repetition: 3,
the total time is 75ms. The welding current is supplied for at least 60ms and neglected for 15ms
(WELD: 5ms + INT: 10ms).
This is also effective when the off time (OFF) is set. A welding is stopped when the signal is
input before each WE. A welding is performed when the signal is released before each WE.
g. WELD2 STOP/WELD COUNT
Set external input to pin 14. When WELD2 STOP is selected the weld count will not be checked.
The sequence will proceed to COOL2 if external input pin 14 is closed during the WELD2
sequence operation.
When the WELD2 STOP signal is input before the start signal is input even if the WELD1 is set,
the welding stop error occurs. When WELD COUNT is selected the weld count will be checked.
h. WELD3 STOP/COUNT RESET
Set external input to pin 25. When
WELD3 STOP is selected the count will not be reset. The
sequence will proceed to HOLD if external input pin 25 is closed during the WELD3 sequence
operation.
When the WELD3 STOP signal is input before the start signal is input even if the WELD1 or the
WELD2 is set, the welding stop error occurs. When COUNT RESET is selected the count will
be reset.
i. FLOW SWITCH/PRG PROTECT
Set external input pin 21.
When FLOW SWITCH is selected
Flow switch input pin. Opening this pin will result in a flow rate error.
When PRG PROTECT is selected
Program inhibit input pin. Closing this pin will not allow you to change the settings.
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