Daihen Welbee WB-A350P, Owner'S Manual

Page: 49 / 150

4-15
Chapter 4 Connection
C
ONNECTION OF
E
XTERNAL
E
QUIPMENT
C
ONNECTION
C
HAPTER
4
4.6.1.1 Wiring for connecting external equipment
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 Unused
TM2 Unused
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.
By setting the internal functions (Functions), the welding power
source can output the signal to the external equipment. (
6.10
-
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
Reserve outputs for expanding terminal functions.
By setting the internal functions (Functions), the welding power
source can output the signal to the external equipment. (
6.10
-
Setting Internal Functions)
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.
It is recommended to use a resistor of approx. 10
Ƙ
since the
noise reduction capacitor is mounted in the welding power
source.
NC NC
㻷㻥㻠㻟㻢
Approx. 5 mA
GND
DC24 V
Contact capacity
24 V/10 mA or more
Welding power
source side
㩷