41
Chapter 4
Connection
C
ONNECTION
OF
E
XTERNAL
E
QUIPMENT
C
ONNECTION
C
HAPTER
4
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
Ammeter (400 A/60 mV) Part No. :4403-057
TM2
1-2
V
Output for
voltmeter
Output terminal to connect a
separately sold voltmeter
Voltmeter (75 V F.S.) Part No. : 4401-016
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. (
6.7
-
Setting Internal Functions)
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 Extra outputs for expanding functions
Setting the internal functions (Function), allows you to output the signal of the welding
condition error.
(
6.7.2.20
-
F25 to F28: External output terminal setting)
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.
•
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
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
