IMA 474
DC-400
Page 13
2) DC-400 is used with an LN-22 equipped with an older
K279 Contactor-Voltage Control Option. Eliminates
electrode overrun when gun trigger is released. Not
required when later K279 (above Code 8800) is used.
3) DC-400 is used with any semiautomatic wire feeder and
possible small spark, if electrode touches work just after
gun trigger is released, is objectionable.
HI-FREQUENCY KIT
(K799-1 OR K930-2)
Kit supplies the high frequency plus gas valve for DC TIG
welding. The DC-400 is shipped with proper R.F. bypass
circuitry installed to protect the control circuit when welding
with a HI-FREQ unit. K844 Water Valve Option Kit can be
used with K799-1 when TIG welding with water cooled
torches. K844-1 Water Valve Option Kit can be used with
K930-2 when welding with water cooled torches.
OPTIONAL AMPTROL ADAPTER FOR K799-1 HI-
FREQUENCY KIT (K915-1 REQUIRES K864
ADAPTER OR K843 ADAPTER)
A “V” cable to connect a K799-1 Hi-Freq kit (5-pin
connector) with either a K963 Hand Amptrol or a K870 Foot
Amptrol (6-pin connector) and the machine.
The cable
going to the machine has a 6-pin connector which requires
either a K864 adapter to connect with the 14-pin connector
on the machine or a K843 adapter to connect to terminals
75, 76, 77 and the case grounding screw on the machine.
UNDERCARRIAGES
KA1236 - Basic Undercarriage
KA1237 - Basic undercarriage with gas bottle
support.
For easy moving of the machine, optional undercarriages
are available.
Install per instructions provided with undercarriage.
TECHNICAL SPECIFICATIONS
Note:
CVI mode draws more input current than CVS or CC modes.
Model
DC-400
Type
KA1369-3
KA1369-1
KA1369-2
Frequency
50/60Hz
Output Rating
DC
Amperes
500 450 400
Volts
40 38 36
Duty Cycle
50% 60% 100%
Output Range
Min.
60A 12V CV (22V CC)
Max.
500A 42V CC, CV
Max. O.C.V.
57 CC (45.5 CVI)
Input Ratings
Standard Voltages
50/60Hz
50Hz
60Hz
50/60Hz
415V
220V
230V
380V
380 V
380V
500V
440V
460V
Rated Input Current
73A
63A
42A
to AS1966-1
39A
42A
39A
32A
37A
32A
Maximum Input Current
113A
97A
65A
under normal operating
60A
65A
58A
50A
conditions
56A
48A
Additional Features
Amptrol Adapter Cable
Yes
115V Starter Circuit
Standard
Suitable Undercarriages
Yes
Remote Output Control
Yes
Other Features
Stackable Case
Weight approx.
215kg
Dimension Print
M12244-7
Wiring Diagram
AL2460
ARC WELDING SUPPLIES - 07 847 7870