Pc-Boards
- 23 -
02.20
909.2710.1-06
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
