18
3.03.02 Input Power
Each unit incorporates an INRUSH circuit and input voltage sensing circuit. When the MAIN
CIRCUIT BREAKER is turned on, the inrush circuit provides a pre-charging of the input
capacitors. SCR’s in the Power Control Assembly (PCA) will turn on after the input capacitors
have charged to full operating voltage (after approximately 5 seconds).
Note 4
Note the available input power. Damage to the PCA could occur if 575VAC or higher is
applied.
The following Primary Current recommendations are required to obtain the maximum welding current
and duty cycle from this welding equipment:
Current & Duty Cycle
Model
Primary Supply
Lead Size
(Factory Fitted)
Minimum Primary
Current Circuit Size
(Vin/Amps)
TIG
STICK
208/24
-
230/21
-
460/11
250A @ 40%
-
208/35
-
230/32
-
3
φ
460/16
-
250A @ 40%
208/51
250A @ 40%
-
230/46
-
208/75
-
PRO-LITE 250TS
8/4 AWG minimum
1
φ
230/68
-
250A @ 40%
Table 2 – 208-230/460V Primary Current Circuit sizes to achieve maximum current
Содержание 250TS DC CC
Страница 2: ......
Страница 4: ...4 PAGE LEFT INTENTIONALLY BLANK ...
Страница 22: ...22 PAGE LEFT INTENTIONALLY BLANK ...
Страница 54: ...54 APPENDIX A INTERCONNECT DIAGRAM ...
Страница 55: ...55 ...
Страница 57: ...57 Figure 11 Location of PCB WK 4921 ...