C
ONNECTION
OF
E
XTERNAL
E
QUIPMENT
C
ONNECTION
C
HAPTER
4
4-12
4.5.2 Connection of automatic machine
This section explains the procedure for connection of automatic machine with the welding power source.
4.5.2.1
Wiring for connecting automatic machine
The welding power source is equipped with terminal block for external connection inside the cover for
external connection at the rear. When connecting to the automatic machine, use this terminal block for
external connection.
Terminal No.
Signal name
Function
TM1
1-2
Ａ
Output for
ammeter
Output terminal to connect a separately sold Ammeter
(400 A / 60 mV)
Part No. :4403-057
TM2
1-2
V
Output for
voltmeter
Output terminal to connect a separately sold Voltmeter
(100V F.S.)
Part No. : 4401-019
TM3
1-2
READY
Power ready
output
When the welding power source side is ready to start welding, the
contact between the terminals closes.
When an error is detected, the contact opens.
3-4
STOP
Operation stop
input
Disconnecting the terminals stops output of the welding power
source.
When combining switches, use a push-lock, turn-reset switch for
preventing accidental reset.
5-9
IN-EXT1
External input 1 Reserve inputs for expanding terminal functions.
Setting the internal functions (Function) allows you to externally
open and close the gas valve and perform inching operation.
(
-
6-9
IN-EXT2
External input 2
7-9
IN-EXT3
External input 3
8-9
IN-EXT4
External input 4
TM4
1-2
24 V 0.2 A
24 V power
source
Outputs power supply of 24 V.
Current capacity: 0.2 A (Maximum)
3-4
OUT EXT1
External output
1
Reserve outputs for expanding terminal functions.
No function is allocated in the standard specification.
5-6
OUT EXT2
External output
2
7-8
OUT EXT3
External output
3
9-10
OUT EXT4
External output
4
11-12
WCR
WCR output
When welding current is detected, the contact between the
terminals closes.
• 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.
AWG22 to AWG16
(0.33 mm
2
to 1.3 mm
2
)
10 to 11 mm
Approx. 5 mA
GND
DC24 V
Contact capacity
24 V/10 mA or more
Welding power
source side
㩷
