LORCH P-Basic - Pc-Board TC21

Pc-Boards
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7.19 Pc-board TC21
The pc-board TC21 is the control board used inside the PowerMaster torches and in the hand remote con-
trol RC20.
It is used to set welding parameters.
The communication is done via the torch trigger wires (PowerMaster torch) in the central connector (bi-
directional, single-wire communication), or via the start-contact wires of the remote control socket (RC20).
Functions
– display and change of welding parameter and Tiptronic jobs
– torch button (start/stop)
Picture pc-board TC21
data
(white)
+
gnd
(brown)
-
central connector
(top view)
torch button
data
(white)
+
gnd
(brown)
-
torch button
PowerMaster torch RC20
X1
14 pin AMP
12
Fig. 33: Pc-board TC21
Schematic
TC21
DMR
X1-2
X1-1
LP2
LP1
LP4
LP3
cent.
con.
INT. PIC
Fig. 34: Schematic pc-board TC21 PowerMaster