MAWA-050A
2. Installation and Connections
2-29
(2) When the pre-flow time: PRE
≥
300 ms, an error is detected 10 ms before the welding start.
Since an error is detected 10 ms before the welding start (= pre-flow time completed), an
arc discharge does not occur.
ON
OFF
PRE
10ms
Detection upper limit
Detection lower limit
Argon gas flowrate
Digital flow meter output
Gas flow error detection
Pre-flow time
Welding current set time
Welding current (arc discharge)
