IS-120B
3. Name and Functions of Each Section
3-2
④ [
WELD
]
lamp
(
Green LED
)
This lamp stays lit while the welding current is flowing.
⑤ [
TROUBLE
]
lamp
(
Red LED
)
This lamp lights up when trouble is detected. At this time, the program unit
makes a peeping sound, and the work done by
IS-120B
is interrupted.
⑥ [
RESET
]
key
If this key is pressed while the
[
TROUBLE
]
lamp
is lit, that lamp is turned off.
The
[
TROUBLE
]
lamp
lights up again, however, as long as there is trouble.
Accordingly, remove the cause of the trouble before pressing this
[
RESET
]
key
.
If the
[
TROUBLE
]
lamp
lights up while work is being done, press the
[
RESET
]
key
, then input the start signal again, and the work continues.
⑦ [
WELD ON/OFF
]
key
This key is one of those which are required for turning on the
[
READY
]
lamp
.
Each time this key is pressed, it is turned ON and OFF alternately. If it is turned
on,
[
READY
]
lamp
lights up, and if the key is turned off, the lamp goes off.
⑧ [
RS-485
]
connector
For external communication.
Data Out "YES/NO" is selectable by setting DIP switch on the internal PC board
(
Factory default is "YES"
)
. This PC board is mounted rear left of the
IS-120B
(
See the figure of the bottom
)
.
When the DIP switch is turned on, weld time, current, count, etc., are output after
HOLD has ended through the RS-485 serial interface.
(
For transmission format,
see Serial Interface Specifications on p. 10-4.
)
Duration of the Data Out is approx. 80 ms.
The next Start is disabled during the Data Out
(
See
8.Time Chart
)
.
When switching the DIP switch, be sure to turn off the power supply
and wait for at least 5 minutes to prevent electric shock.
DANGER
!
PC Board
Ｏ
Ｆ
Ｆ
Data out:YES
Front
Many DIP switches are on the PC board;
select the correct one.
When changing over DIP
switch, take care not
todamage PC board.
１
２
３
４
５
６
７
８
Ｏ
Ｆ
Ｆ
Data out:NO
１
２
３
４
５
６
７
８
Setting DIP switch
