LORCH S-Pulse User Manual

Pc-Boards
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7.4 Pc-board DMRPP04
The pc-board DMRPP04 is the (digital) control board to use a Lorch Push-Pull torch (optional).
It is also necessary for the use of an intermediate feeder or for the NanoFeeder.
If a digital PushPull shall be retrofitted into an existing machine, the pc-board DMR is replaced by the
DMRPP04.
The pc-board DMRPP04 consists of two single boards which are connected via flat ribboncables with each
other:
– pc-board DMRPP-P: power driver circuit for motor
– pc-board DMRPP-C04: control logic
Functions
– drive level and monitoring wire feed motor / PushPull motor / intermediate feed motor
– driving gas valve
– control and monitoring operating elements (front panel, remote control, torch button, PowerMas
-
ter)
LEDs
LED state meaning
1 (red) off DSP ok
on
(brigth)
pc-board is in programming (flash) mode: DIP switch1 = ON
on
(weak)
DSP is not programmed
2 (green) on 5V internal supply voltage ok
off 5V supply voltage is missing
3 (green) blinking DSP in function
on no intermediate feeder present (if DIP switch2 = ON)
Tab. 11: LEDs DMRPP04
Measuring points
designation
measuring
point
result
5V internal supply voltage X5-1
X5-3
+
gnd
+5V DC
24V internal supply voltage X8-8
X8-1
+
gnd
+24V DC
60V motor supply X8-5
X8-6
+
gnd
+60V DC
Tab. 12: Measuring points DMRPP04
DIP switches
DIP switch setting function
1 ON programing mode active
OFF normal operation
2 ON configuration Intermediate Feeder
OFF configuration PushPull/NanoFeeder
Tab. 13: DIP switches DMRPP04

LORCH S-Pulse Specifications

General

Brand	LORCH
Model	S-Pulse
Category	Welding System
Language	English