IS-200A
6. Interface
6-5
Pin No. Name Description
29
COUNT
ERROR
Count error output pin. This signal is output if the set number of
welds is not reached during count input. The contact is rated at
24
V DC at 20
mA (semiconductor switch).
30
READY
Ready output pin. This pin is closed when the Power Supply is
able to supply welding current.
The pin is opened in the WELD OFF or error state.
The contact is rated at 24
V DC at 20
mA (semiconductor
switch).
31
STEP END
Step end output pin.
This signal is output upon completion of the last step during the
step-up operation and continues until the step reset signal is
input.
The contact is rated at 24
V DC at 20
mA (semiconductor
switch).
32
WELD SIGNAL
Welding current timing output pin. This signal is output at the
beginning of WELD1, 2, or 3. The contact is rated at 24
V DC at
20
mA (semiconductor switch).
33
OUT COM
Common pin for output pins.
This pin is the common pin for the NG, CAUTION, END,
COUNT ERROR, READY, STEP END, and WELD ON pins.
34
SOL POWER
Power input pins to drive the solenoid valve.
Input 120
V AC or 24
V AC/DC power.
35*
SOL COM COM pin for the solenoid valve.
36*
37*
SOL 1
SOL 2
Solenoid valve output pins. 36: SOL1; 37: SOL2
These pins are closed for the duration of 2ND STAGE input.
The contacts are rated at 120
V AC or 24
V AC/DC at 0.5
A
(semiconductor switches).
Use a solenoid valve with a current capacity of 0.5
A or less.
38
39
VOLT SENS
Secondary voltage input pins.
Connect to the electrodes of the welding head during
constant-power or constant-voltage control or when monitoring
the secondary voltage. (However, do NOT connect when using
our dedicated inverter transformer and the voltage detecting
cable.)
* When using 24
V DC solenoid, install diodes on measures to prevent surge voltage.
Example) When inputting + to Terminal 34 and – to Terminal 35.
＋ －
＋－
35
36
37
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