HS50_advance_level 2.pdf - 第96页
07/2002 Editio n Student G uide HS -50 Advanc ed II 3 Power Sup ply 58 ➠ Switch th e placeme nt system o n and s tart it up. ➠ Use t he dig it al vo ltmet er to m easur e th e volt age s. ➠ Complete th e servi cing wor k…
Student Guide HS-50 Advanced II 07/2002 Edition
3 Power Supply
57
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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).
➠ Use the screwdriver to push back the yellow (1) terminal link slightly.
➠ Pull the terminal wires out one by one and identify with adhesive labels.
➠ Use the screwdriver to press down the two locking lugs (2) on the back and remove ELR1 (3)
or ELR2 from the top-hat rail.
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➠ Place ERL1 and/or ERL2 on the top-hat rail and snap into place.
➠ Check that it is firmly seated.
➠ Connect the marked terminal wires. Ensure that they are firmly attached.
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ELR1, ELR2 (Fig. 5.8.2) Board ARL TC 31034-01 00341835-01
07/2002 Edition Student Guide HS-50 Advanced II
3 Power Supply
58
➠ Switch the placement system on and start it up.
➠ Use the digital voltmeter to measure the voltages.
➠ Complete the servicing work as described in 3.3.3 on page 3 - 29.
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– Set of slotted-head screwdrivers
– Set of Phillips screwdrivers
– Self-adhesive labels
– Digital multimeter
– HS-50 detailed circuit diagrams
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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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Control voltage 9 - 10
24 VDC 11 - 10
230 VAC 1 - 3, 2 - 4
5 - 7, 6 - 8
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C1 Electrolytic capacitor 33000 µF/63 V 00342399-01
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