Red-D-Arc EXTREME 360, Technical Manual

Page: 25 / 68

PRE-POWER CHECKS
TM-229 409 Page 21 Extreme 360
6-6. Inverter Module (MOD2)
Ref. 907 161 / 225 065-A
Y Read and follow safety
information in Section 6-1
before proceeding.
Y Wear an earth grounded
wrist strap when performing
pre-power checks. Remove
wrist strap before perform-
ing any checks or proce-
dures with power applied to
the machine.
.
Board layout may differ from
that shown.
1 MOD2
Visually inspect MOD2 for damage.
2
− BUS
3 TP2
4 TP1
5 L2
6 TP4
7 HF-XFMR
8 D4
9 D2
10 TP3
11 D8
12 D10
13 D11
14 +BUS
Check all measurements for Invert-
er Module (MOD2) (see Section
6-7).
If all measurements passed, MOD2
is OK. Continue to the end of the
pre − power flowchart (see Section
6-2).
1
Component Side Of Board
7
10
5
14
2
4
6
9
11
12
13
Test Equipment Needed:
3
8
6-7. Inverter Module (MOD2) Test Point Values
Inverter Module MOD2 DVM Positive Lead DVM Negative Lead DVM Diode DVM Ohms
Boost Snubber Diode TP1 (C6 and C7) TP4 (C1) 0.20 - 0.90 N/A
Boost Snubber Diode L2 TP4 (C1) 0.20 - 0.90 N/A
Main Boost Diode TP4 (C1) +BUS 0.20 - 0.90 N/A
Inverter IGBT HF-XFMR +BUS 0.20 - 0.90 N/A
Inverter IGBT − BUS HF-XFMR 0.20 - 0.90 N/A
Snubber IGBT TP2 (D11 Cathode) HF-XFMR 0.20 - 0.90 N/A
Snubber IGBT TP2 (D11 Cathode) TP3 (C2) 0.20 - 0.90 N/A
Inverter IGBT Gate D2 Cathode HF-XFMR N/A 100k
Inverter IGBT Gate D4 Cathode − BUS N/A 100k
Snubber IGBT Gate
(w/Plug Removed From RC1)
D10 Cathode TP2 (D11 Cathode) N/A 100k
Snubber IGBT Gate
(w/Plug Removed From RC1)
D8 Cathode TP2 (D11 Cathode) N/A 100k