Daihen WB-M500, Owner'S Manual

Page: 78 / 145

S
ETTING
W
ELDING
C
ONDITIONS
W
ELDING
C
ONDITION
C
HAPTER
6
6-16
6.6.2.1 Welding sequence
The basic welding sequence is the process of PRE FLOW, MAIN CONDITION, and POST FLOW. To this
sequence, initial condition and crater condition can be added depending on the crater setting. The
welding parameters such as gas discharge time, welding current and voltage should be set to this
sequence.
Each sequence process has the following description:
6.6.2.2 Welding parameter setting
This section explains how to set the welding parameters (gas discharge time, welding current/voltage)
according to the welding sequence.
1. Set the gas discharge time.
●
Press the DISPLAY CHANGE key, and select the LED of "PRE FLOW" (or "POST FLOW").
●
Turn the parameter adjustment knob to set the gas discharge time.
The set parameter is displayed on the left digital meter.
Process Description
PRE FLOW It is the sequence to discharge gas before the welding starts.
INITIAL CONDITION The welding is carried out in this sequence during when the torch switch is ON.
MAIN CONDITION It is the welding sequence.
CRATER -FILL
CONDITION
It is the sequence processing the crater part.
POST FLOW It is the sequence to discharge gas after the welding completes.
INITIAL
CONDITION
CRATER-FILL
CONDITION
POST
FLOW
MAIN
CONDITION
PRE
FLOW
A V
r
A V
r
㧑
WARNING
m/min.
sec.
JOB No.
ON
SYNERG.
m/min.
DISPLAY
CHANGE
ARC
CONSTANT PENETRATION
VOLT.ADJUST
INITIAL
CONDI
-TION
PRE
FLOW
POST
FLOW
MAIN
CONDITION
INITIAL
CONDITION
CRATER-FILL
CONDITION
WATER
TORCH
CONTROL
ON
Hz
DISPLAY CHANGE key
Parameter adjusting knob
VOLTAGE SETTING
DISPLAY SWITCH key
VOLT.ADJUST
key
CURRENT SETTING
DISPLAY SWITCH key
SYNERG.
INDIV.