C
ONNECTION
OF
E
XTERNAL
E
QUIPMENT
C
ONNECTION
C
HAPTER
4
38
NOTE
•
Connect welding power source and target device after carefully read the instruction manual
of target device. Add current limiting resistor if capacitor is connected to the contact of
target device.
•
If an ammeter is accidentally connected to the output-terminal for voltmeters, the ammeter
and/or the wiring will be burnt. Fully confirm to which the ammeter is to be connected.
•
When connecting a voltmeter and/or a voltmeter, be careful for short-circuit between the
positive wiring (+) and the negative wiring (-).
•
Input signal of the external connection terminal block
Use switches and relays with contact capacity of 24 V/10 mA or more for
connecting with the input terminal.
•
Output signal of the external connection terminal block
Output signal is open collector output. Ensure to keep the maximum
rated power of the transistor.
Maximum rated power of transistor
READY: DC50 V/100 mA
OUT EXT1 to 4: DC50 V/100 mA
•
WCR output signal
WCR signal is the output of relay contact. Ensure to keep the maximum
rated power of the contact.
Maximum rated power of relay contact
WCR: 125 VAC / 0.5 A, 30 VDC / 1 A at resistance load As a rough
indication, use at 80% of the ratings.
Approx. 5 mA
GND
DC24 V
Contact capacity
24 V/10 mA or more
Welding power
source side
㻌
-V
+V
+
-
Transistor
Welding power
source side
㻌
Relay contact
Current limiting
resistor
Welding power
source side
㻌
-V
+V
+
-