HS50_advance_level 2 - 第86页
07/2002 Editio n Student G uide HS -50 Advanc ed II 3 Power Sup ply 48 5HS ODFLQJWK HFRPELQHGF RQW DFWRUS URWHFWLY HGHYL FH66. 7 RROV DQGHTXLSPHQW – Set of slotte d-head s crewdri…
Student Guide HS-50 Advanced II 07/2002 Edition
3 Power Supply
47
➠ Loosen the clamping screws (1). Pull the terminal wires out one by one and identify with adhe-
sive labels.
➠ Press down on the lug (2) on the back of the circuit-breaker (3).
➠ Tilt the circuit-breaker (3) upwards slightly and remove.
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➠ Set the thermal overload current on the dial (1) to 0.45 A.
➠ Place the circuit-breaker (2) on the top-hat rail and snap into place.
➠ Connect up the terminal wires.
➠ Switch the placement system on and start it up.
➠ Use the digital voltmeter to measure the 3 x 230 VAC supply at input terminals 1, 3, 5 and out-
put terminals 2, 4 and 6.
➠ Complete the servicing work as described in 3.3.3 on page 3 - 29.
07/2002 Edition Student Guide HS-50 Advanced II
3 Power Supply
48
5HSODFLQJWKHFRPELQHGFRQWDFWRUSURWHFWLYHGHYLFH66.
7RROVDQGHTXLSPHQW
– Set of slotted-head screwdrivers
– Self-adhesive labels
– Digital multimeter
– HS-50 detailed circuit diagrams
3DUWV
3TK2805/24 VDC/5S-1NC combined contactor/protective device, item number 00341222-01
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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).
Student Guide HS-50 Advanced II 07/2002 Edition
3 Power Supply
49
➠ Loosen the clamping screws (1). Pull the terminal wires out one by one and identify with adhe-
sive labels.
➠ Use the screwdriver to press down on the locking lug (2) on the back of the combined contac-
tor/protective device (3).
➠ Tilt the combined contactor/protective device upwards slightly and remove.
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➠ Place the combined contactor/protective device on the top-hat rail and snap into place.
➠ Connect up the terminal wires.
➠ Switch the placement system on and start it up.
➠ Use the digital voltmeter to measure the voltages at the terminals as per circuit diagram
00336145-XXXXXX-LD4.
➠ Complete the servicing work as described in 3.3.3 on page 3 - 29.
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7RROVDQGHTXLSPHQW
– Set of slotted-head screwdrivers
– Open-ended spanner, size 13
– DIN 911 Allen key, size 6
– Self-adhesive labels
–Fork-lift truck
– Tripod with block and tackle for lifting the transformer
– Digital multimeter
– HS-50 detailed circuit diagrams
3DUWV
11.1 kVA transformer, item number 00345634-01
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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).