Red-D-Arc EXTREME 360, Техническое руководство

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PRE-POWER CHECKS
TM-229 409 Page 20 Extreme 360
6-4. Input Pre-Regulator Module (MOD1)
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 perform-
ing pre-power checks. Re-
move wrist strap before
performing any checks or
procedures with power ap-
plied to the machine.
.
Board layout may differ from
that shown.
1 MOD1
Visually inspect MOD1 for dam-
age.
2
− BUS
3 D12 Cathode
4 AC1
5 AC2
6 AC3
7 L1
8 L1-L2
9 TP1
10 +BUS
Check all measurements for Input
Pre − Regulator Module (MOD1)
(see Section 6-5).
If all measurements passed,
MOD1 is OK. Continue to the end
of the pre − power flowchart (see
Section 6-2).
1
Component Side Of Board
2
8
3
9 4
7
5
6
Test Equipment Needed:
10
6-5. Input Pre-Regulator Module (MOD1) Test Point Values
Input Pre-Regulator Module MOD1 DVM Positive Lead DVM Negative Lead DVM Diode DVM Ohms
Boost IGBT − BUS L1-L2 0.20 - 0.90 N/A
Boost IGBT (w/Plug Removed From RC3) D12 Cathode − BUS N/A 100k
Boost Snubber Diode L1-L2 TP1 (C6 and C7) 0.20 - 0.90 N/A
Input SCR AC1 L1 0.20 - 0.90 N/A
Input SCR AC2 L1 0.20 - 0.90 N/A
Input SCR AC3 L1 0.20 - 0.90 N/A
Input Diode − BUS AC1 0.20 - 0.90 N/A
Input Diode − BUS AC2 0.20 - 0.90 N/A
Input Diode − BUS AC3 0.20 - 0.90 N/A