Adjusting The Pfu14; Procedure Of Manual Welding; Control Of Tig-Mode - Fronius TRANSPOCKET 1400 MV Serviceanleitung

ADJUSTING THE PFU14

PROCEDURE OF MANUAL WELDING

V/Ampere-
meter
Shunt
LOAD
(R = 4Ω / P>100W)
L
- switch machine to "electrode"
- set welding current dial to 140A
- set I-min to 5A, if necessary adjust it
V/Ampere-
meter
Shunt
LOAD
(R = 160mΩ / P>3,2kW)
L
- set welding current dial to 140A
- let the machine run for 5min (welding)
- set I-max to 140A, if necessary adjust it
Emergency setting
- set welding current dial to 140 A
- let the machine run for 5min (welding)
- set I-max to 140A, if necessary adjust it
Setting of hardness
- set the welding current dial to 100A
- cause a short circuit
- set the short circuiting current with the potentiometre of hardness (R136)
to 140 A (short circuiting cut-out after 1 second)
Fig.19 Detailed view of the pc board PFU 14
V/Ampere-
meter
Shunt
3,25 rutile electrode
Hardness (R136)
I min (R112)
I max (R137)
12

CONTROL OF TIG-MODE

V/Ampere-
meter
Shunt
LOAD
(R = 160mΩ / P>3,2kW)
L
- set machine to TIG
- current range: I min 5A
I max 140A
Emergency setting
Check TIG-mode
- switch machine to TIG
- set welding current dial to 100A
- cause a short circuit with the TIG-torch ð short-circuiting current at 40A
±2A.
V/Ampere-
meter
Shunt