HS50_advance_level 2 - 第98页
07/2002 Editio n Student G uide HS -50 Advanc ed II 3 Power Sup ply 60 3D UW V 5HPRY LQJPDL QSRZHU ILO WHU= DANGER Switch off the place ment syste m and d isconne ct from the po wer supply ( see s…
Student Guide HS-50 Advanced II 07/2002 Edition
3 Power Supply
59
➠ Loosen the screws (1) and identify the polarity of the terminal wires with adhesive labels.
➠ Loosen the Phillips screw (2) and lift the capacitor (3) out of the clamping ring (4).
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➠ Fit the capacitor and clamp in place.
➠ Ensure that the polarity is correct when you connect the terminal wires.
➠ Switch the placement system on.
➠ Use the digital voltmeter to measure 52 VDC at the capacitor.
➠ Complete the servicing work as described in 3.3.3 on page 3 - 29.
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– Set of slotted-head screwdrivers
– Open-ended spanner, size 8 and socket spanner, size 10
– Self-adhesive labels
07/2002 Edition Student Guide HS-50 Advanced II
3 Power Supply
60
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DANGER Switch off the placement system and disconnect from the power
supply (see sections 3.3.1 and 3.3.2).
➠ Loosen the clamping screws (1) for the terminal wires one by one and identify the terminal
wires with adhesive labels.
➠ Loosen the M6 hexagon nut (2) and pull out the protective earth cable.
➠ Loosen the M5 hexagon nuts (3) for fixing the main power filter.
➠ Remove the main power filter (4).
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➠ Fit the main power filter (4) and fix in place with the M5 hexagon nuts (3).
➠ Attach the terminal wires (1).
➠ Attach the protective earth cable (2).
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Student Guide HS-50 Advanced II 07/2002 Edition
3 Power Supply
61
➠ Connect the placement system to the power supply.
➠ Measure the voltages at the main power filter’s input and output:
3 x 204 VAC / 3 x 230 VAC / 3 x 380 VAC / 3 x 400 VAC / 3 x 415 VAC
➠ Complete the servicing work as described in 3.3.3 on page 3 - 29.
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– Set of slotted-head screwdrivers
– Open-ended spanner or socket spanner, size 8
– Self-adhesive labels
– Digital voltmeter
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DANGER Switch off the placement system and disconnect from the power
supply (see sections 3.3.1 and 3.3.2).
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