IS-300A
6. Interface
6-8
(3) List of External Output Signals
The following signals can be assigned to output pins 28 to 32 (OUT1 to 5) on the
OUTPUT SELECT screen. (See 4.(7).)
Name Description
END
Closed each time the sequence is complete and output the END
signal.
Output time selection (10 to 200 ms, HOLD)
When the off time (OFF) is set and the END signal time is set to time
longer than OFF time, the END signal time will be equal to OFF time.
(See 4.(9)(c)(d) and 8.(1)(3).)
COUNT
ERROR
Weld count error output.
In the case WELD COUNT is ON, this signal is closed when the weld
count pin is open before the set number of welds is not deposited.
This signal is also closed when the weld count pin is open before
welds are counted. When the weld count is larger than the set number
of welds, this signal is not output.
To clear the count error signal, you need to input the weld count signal
again or add required number of welds to make up for insufficiency.
The count error signal is not cleared if the error reset signal is input.
Also, when required number of welds are added to make up for
insufficiency, the count error signal is output until the insufficient
number of welds is complete. (See 4.(9)(f) and 4.(10)(a).)
READY Closed when no error occurs and the WELD ON/OFF is ON.
STEP END
Closed when the last step ends in step-up operation.
Closed until the step reset signal is input or the step setting (value) is
changed.
Even if VALVE 1 and VALVE 2 are switched, the signal remains closed
when the either one reaches the set number of welds. The error is
displayed only when the VALVE where the current is supplied has
reached (reaches) the set number of welds. (See 4.(11) and 8.(2)3).)
WELD
SIGNAL
Welding timing signal. Closed during welding. Not output at COOL.
Closed even if start with the WELD OFF state when the weld time is
set. (See 8.(1) and (3).)
GOOD
Closed when the measured value is judged to be within the range set
on the MONITOR SET screen after the completion of welding
sequence.
Output time selection: 10 to 200 ms, 0 ms (Hold) (See 8.(1).)
COUNT UP
Closed when the count reaches the preset count value. To cancel the
count up output, input the reset signal to the count reset pin. (See
4.(9)(p) and 4.(10)(a).)
OUT I *
WELD1 welding end output. Closed between the WELD1 welding end
and the beginning of HOLD. (See 8.(1) and (3).)
OUT II *
WELD2 welding end output. Closed between the WELD2 welding end
and the beginning of HOLD. (See 8.(1) and (3).)
* The OUT signals are effective when:
• weld force is switched in the middle of welding sequence.
• the timing of supplying ribbon-shaped brazing filler metal is output in resistance
brazing.
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