No. P30051
―65―
11. APPLIED FUNCTION (continued)
12P terminal block (TM 12P)
Pin No.
Signal name
Function
+
㧙
-
READY
(OUTPUT)
Ready Power
The terminals used for ready power for prep. relay. When
there is not any error such as open phase, Operation Stop,
output over current, and thermal overload, the terminals work,
etc. while the power switch is on, the terminals function.
*1
+
㧙
-
GAS (INPUT)
Solenoid Valve
Control
The terminals used for controlling the gas solenoid valve by
external signals. (If the terminals are short-circuited, the gas
valve will open.)
*2
+
㧙
-
EXT1 (INPUT)
Extra Input
Signal 1
The terminals used for special specifications. These terminals
should not be used for normal use.
*2
+
㧙
-
EXT2 (INPUT)
Extra Input
Signal 2
The terminals used for special specifications. These terminals
should not be used for normal use.
*2
+
㧙
-
STOP (INPUT)
Operation Stop
To stop welding externally. Release the wiring between two
terminals to run Operation Stop. Welding machine is stopped
by running Operation Stop. Close the terminals after turning
off the torch switch to restart welding. To avoid accidental
restart, use of a Pushlock Turn reset switch is suggested.
*2
+
㧙
-
WCR(OUTPUT)
Current
Detection
Contact Output of welding current relay used for detection of
welding current. The contacts close while welding current is
flowing.
*3
Precaution for connection with terminals on the terminal block
The wires from the terminal blocks should be twisted for each signals to avoid accidental
operation. Take care that the wires form the terminal blocks do not cross other signal wires from
other welding power source.
*1 Equivalent circuit is as the figure shown right. Maximum capacity of TR is 80V, 100mA. When
connecting such as relay to two terminals, do not exceed 80% of the maximum capacity of TR.
(Figure 1)
*2 Equivalent circuit is as the figure shown right. Connect allowable contacts (10mA or more) to
two terminals. (Figure 2)
*3 Rating of the provided relay contacts is 125V AC, 0.5A, 30V DC, 1A. Do not exceed 80% of the
rating of the provided relay contacts.
64
Figure 1
Figure 2
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8
Mǡ
2%
4.7kΩ
