Description Of Operation; 13Ap1 Control Board; 13Ap1:1 Power Supply - ESAB Aristo RoboFeed 3004w Service Manual

DESCRIPTION OF OPERATION

DESCRIPTION OF OPERATION

13AP1 Control board

This description is valid for control circuit board 0487 187 880, which is fitted in the
RoboFeed 3004w and in Aristo RoboFeed 30-4 from serial no. 501-xxx-xxxx.
Circuit board identity
The control board has a machine ID, a hardware ID and a unit type number. To read this you
need the ESAT service kit, see Section "Service aid", page 25.
• The machine ID determines which type of wire feed unit the board is intended for.
• The hardware ID shows design and type of circuit board.
• The unit type is used for identification on the can bus.
The ID numbers of the wire feeders are:
Aristo RoboFeed 30-4 Machine ID = 8
Hardware ID = 6
Unit type = 3 (wire feeder unit)

13AP1:1 Power supply

The wire feed unit is supplied at 42 V from the control current power supply transformer in
the welding power source. The feed unit can briefly draw up to about 8 A when accelerating
the wire.
DC supplies
The diodes D13 – D16 rectify the 42 V AC supply. The rectified voltage is used to power the
wire feed motor(s). It also powers the switched voltage regulator.
IC21, IC8, Q12, L1 and D37 forms a switched voltage regulator. The +24 V output voltage of
the regulator supplies the +15 V and +5 V regulators, VR2 and VR1. It also supplies the
reference circuit IC22, which generates +2.5 V reference voltage, this is used by the
analogue inputs of the processor.
0740 800 169
RoboFeed 3004w Machine ID = 8
- 12 - © ESAB AB 2014