Lincoln Electric FlexCut 200 Service Manual page 9

1. USER INTERFACE BOARD
Allows the user to select
modes, adjust work point and
display pressure via a digital
display. Communicates
directly to the switch board via
CAN. Displays machine
status and error codes to the
user.
2. ARCLINK CONNECTION
40 VDC Arclink
communication to switch
board.
3. ARCLINK CONNECTION
Arclink communication for
Arclink I/O board.
4. ARCLINK I/O BOARD
Enables machine to
communicate via ArcLink XT
to Torchmate 5100 table.
5. PILOT CURRENT LEM
Current transducer in work
lead provides level detect for
arc transfer.
6. WORK STUD
Connects to material for
cutting (positive polarity).
7. THREE PHASE INPUT
POWER
Current transducer.
8. INPUT SWITCH
Applies line power to the
machine.
9. INPUT RECTIFIER
Converts 3 phase 50/60 Hz ac
to full wave rectified DC.
10. SWITCH BOARD
Converts rectified 50/60 Hz
input to high frequency output
of 20 kHz. Drives solenoids,
fan and pilot board. Reads all
external sensors such as
pressure, current feedbacks,
voltage feedbacks,
thermostats and cap fault, etc.
11. MAIN TRANSFORMER
Provides isolation from
primary to secondary.
12. SNUBBER BOARD
Converts 20 kHz AC
transformer output to DC for
cutting. Provides RC snubber
for rectifier diodes.
13. OUTPUT CHOKE
Provides arc stability (never
saturates). Inductance
reduces output ripple.
14. MAIN CURRENT LEM
Current transducer in
electrode lead provides
feedback for power source
regulation.
15. ELECTRODE STUD
Connects to torch (negative
polarity).
16. FAN
Provides airflow through the
machine. Airflow direction is
front to back.
17. THERMOSTAT
Normally closed thermal
circuit. Contacts open at 185º
F. Contacts close at 158º F.
18. SOLENOIDS
There are three solenoids, one
to energize the cutting gas,
one to energize the shielding
gas and a third to switch
between cutting and marking
pressure for the shielding gas.
19. PRESSURE SENSE BOARD
Reads in the pressure value
exiting the machine for plasma
and shield pressures.
Converts pressure to a voltage
signal.
20. PILOT BOARD
Initiates pilot. Provides
isolated I/O for external
interface.
21. PILOT STUD
Connects to torch for pilot arc.
22. AUXILIARY TRANSFORMER
Supplies isolated power to
auxiliary circuits. 52 VAC and
115 VAC secondary output.
23. AUXILIARY RECTIFIER
Rectifies AC voltage from the
auxiliary transformer.
24. CAPACITOR
Filters the rectified voltage
from the auxiliary rectifier.
25. 40 VDC BUS BOARD
Provides a regulated 40 VDC
supply for internal and
external use. Provides power
to switch board and user
interface board.
FlexCut 200
26. VOLTAGE DIVIDER BOARD
Provides non-isolated
feedback of voltage potential
between the torch and work
connections to the CNC
interface. Alternately provides
a divided voltage at a lower
level that can be accepted by
external devices.
27. CNC CONNECTION
Provides non-isolated plasma
voltage for height control, can
be raw or divided. Provides
signal for motion to initialize.
Provides input for trigger and
procedure change.