Daihen OTC Welbee Inverter W400, Руководство пользователя

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4-17
Chapter 4 Connection
C
ONNECTION OF
E
XTERNAL
E
QUIPMENT
C
ONNECTION
C
HAPTER
4
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.
4.5.2.2 Connection of terminal for external connection
This section explains the procedure for connection to the terminal for external connection.
• 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: DC80 V/100 mA
To prevent electric shock, ensure to follow the instructions below:
• Wiring should be performed by qualified persons or persons familiar with the welding
machine.
• Do not touch the input and output terminals and the internal live electrical parts of the
welding power source.
• Before starting the work, make sure to cut the input power with the disconnect switch
connected to the welding power source and wait three minutes or more. In addition, do
not turn on the primary power until the work is complete.
• Do not use damaged cable or cable without grounding.
• Securely attach the case and cover of the welding power source after connecting the
cables.
Use the following cable for connecting to the terminal for external connection:
• Cable thickness: AWG22 to AWG16 (0.33 to 1.3 mm
2
)
• Using a cable or terminal not specified will be a cause of heat generation and fire.
Furthermore, cable other than specified cannot be connected to the terminal for
external connection.
Transistor
Welding power
source side
㻌
-V
+V
+-
Relay contact
Current limiting
resistor
Welding power
source side
㻌
-V
+V
+-