Thermal Dynamics A-08950, Руководство по обслуживанию

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CUTMASTER 12mm
Manual 0-5077 5-11 SERVICE
H. CNC INTERFACE TEST
If the unit has one of the two factory supplied options
for CNC interface installed, proceed with this section,
otherwise the tests are complete.
1. Connect an ohmmeter between J2-12 to J2-14
(START signal). Position the torch to pilot. Check
the OK-TO-MOVE signal by connecting a jumper
between J2-3 and J2-4 (START signal).
• Pilot arc is established
2. Bring the torch to the work piece and transfer to
cutting arc.
• OK-TO-MOVE signal is present. (Meter shows
continuity)
3. Remove jumper from J2.
•
Arc shuts OFF
• OK-TO-MOVE signal OFF (Meter shows no
continuity)
• Gas continues to flow
• DC LED goes OFF
After 20 second Post flow time
• Gas solenoid closes
• Gas flow stops
If the unit has the Basic CNC Interface harness the
test is complete. If the unit does not function as stated
above, then note the symptom and proceed to Sec-
tion "5.10 CNC Interface Problems".If the unit has
the Automation Interface PCB installed, continue
with this section.
4. There are three (3) ARC VOLTs signals available
from the J2 connector.
a) J2-9 (+) to J2-7 (-)
b) J2-5 (+) to J2-6 (-) (Auto Interface PCB J3 con-
nector with jumper installed between pins 1
and 2) = ARC VOLTS divided by 50
c) J2-5 (+) to J2-6 (-) (Auto Interface PCB J3 con-
nector with jumper installed between pins 2
and 3) = ARC VOLTS divided by 16
Measure the voltage between these points while
piloting (Open Circuit Voltage) and while cutting.
The voltages should approximately as listed below
Open Circuit Voltage Cutting Voltage
a) 300 VDC 100 VDC
b) 6 VDC 2 VDC
c) 19 VDC 6 VDC
This completes the CNC Interface Test. If the above are
all correct then the unit is functioning correctly. If the
unit does not function as stated, then note the symptom
and proceed to Section "5.10, CNC Interface Problems".
5.08 Main Input and Internal Power
Problems
A. Primary input line fuse blows as soon as
primary disconnect is closed.
1. Primary input cable installed incorrectly.
a) For Non EMC units - Check wiring of primary
power cable to the W1 contactor
Art # A-08795
Input Power Cable Connections
380-415 VAC Three-Phase (3ø)
GND
L1
L2
L3
L4
b) For EMC units - Check wiring of primary pow-
er cable to the EMC Filter terminal block.
GND
L1
L2
L3
EMC Input
Power Filter
Art # A-08752_AA
Three Phase Input Power Wiring
2. W1 contactor points are stuck closed
a) Check per section 5.11-A
3. Primary plug not wired correctly.
a) Check manufacturer's plug installation in-
structions.
4. Primary input cable is defective.
a) Check cable for shorts.
B. Primary line fuses blow immediately after
ON/OFF SWITCH (SW1) is turned to ON
position.
1. Shorted Input Diode Module
a) Check per section 5.11-B.
2. Shorted Input Capacitor PCB
a) Check per section 5.11-C.