IS-120B
6. Interface
6-4
･
Pin 31 :
Step end output terminal
(
Open collector
)
.
When last step is finished in step-up mode, this signal is output
continuously until the STEP RESET signal is input.
･
Pins 32, 33:
Error output terminal. Contact which closes when error occurs is
output.
･
Pins 34, 35 :
READY signal output terminal. A contact, which closes when power
is ready to apply, is output.
･
Pins 36, 37 :
END signal output terminal. Contact, which closes for about 200 ms
at end of
HOLD
time, or keeps closing while START
(
SCHEDULE
)
is ON, is output.
･
Pins 38, 39:
Secondary voltage input terminal. Connect these terminals to
secondary of welding transformer near to electrode for secondary
constant-power effective value control, secondary constant-
voltage effective value control or monitoring secondary voltage.
(3) Connection of Input Signals
When using a 100VAC power supply for valve, separate the wiring of the signal lines,
Pins 6 to 31, from those of AC lines, Pins 1 to 5.
ATTENTION
When applying
①
,
②
or
③
, connect the attached jumper wires as shown.
When applying
④
, do NOT connect anything to Pins 6 and 7.
Incorrect wiring will cause trouble.
①
When external input signal is contact input
〃
〃
０Ｖ
２ １
２ ２
＋ ２ ４ Ｖ
＋ ５ Ｖ
６
７
８
９
１ ０
１ １
１ ２
