HS50 HS60 维修手册2(5)

3 Use the screwdriver to push the yellow locking lug (3) upwards Fig. 3.3 - 5 Releasing the yellow locking lug 3 3 Remove the motor trip block (4) 3 Fig. 3.3 - 6 Removing the motor trip block MS1A 3.3.5.4 Fitting the motor trip block ? Check the type of motor trip block before inserting it. The type is dependent on the operating voltage. Main power voltages 415 VAC ± 5 % 400 VAC ± 5 % 380 VAC ± 5 % 230 VAC ± 5 % 204 VAC ± 5 % Type ZM-16-PKZ2 ZM-16-PKZ2 ZM-16-PKZ2 ZM-32-PKZ2 ZM-32-PKZ2 Student Guide HS-50 / HS-60 Advanced II 3 Power Supply 03/2003 Edition 33

? Check the overcurrent trip and short-circuit current trip threshold settings.

Motor trip block ZM-16-PKZ2 ZM-32-PKZ2

Yellow dial (1) for setting the overcurrent trip threshold

12 A 24 A

Red dial (2) for setting the short- circuit current trip threshold

190 A 375 A

3 Check the overcurrent trip threshold (yellow dial) 3 Check the short-circuit current trip threshold (read dial) 3 Fig. 3.3 - 7 Check the trip thresholds for overcurrent and short-circuit current ? Insert the motor trip block. ? Push the yellow locking lug down. ? Close the grey safety flap. ? Turn the rotary switch clockwise as far as the stop. ? Switch the placement system on at the main switch. ? Use the digital voltmeter to measure the main power supply voltage at terminals L1, L2, L3 and T1, T2 and T3. ? Complete the servicing work as described in 3.3.3 on page 3 - 29. 3.3.6 3.3.6.1 Replacing motor circuit-breaker MS1 (00342494-01) Tools and equipment – Set of slotted-head screwdrivers – Self-adhesive labels – Digital multimeter – HS-50 detailed circuit diagrams 34 03/2003 Edition Student Guide HS-50 / HS-60 Advanced II 3 Power Supply

3.3.6.2 Parts

PKZ2/3-pole/40 motor circuit-breaker, item number 00342494-01.

3

3.3.6.3 Removing motor circuit-breaker MS1

DANGER Switch off the placement system and disconnect from the power 3 3 supply (see sections 3.3.1 and 3.3.2). Remove the motor trip block (2) (see Section 3.3.5) Loosen the clamping screws (3) on 3 the motor circuit breaker (1) identify with adhesive labels 3 3 Remove the terminal wires one by one and Fig. 3.3 - 8 Removing motor circuit-breaker MS1 Student Guide HS-50 / HS-60 Advanced II 3 Power Supply 03/2003 Edition 35 3 Fig. 3.3 - 9 Motor circuit-breaker MS1 - releasing the lock ? Use the screwdriver to press down the locking lug (4) on the back of the motor circuit-breaker. ? Tilt the motor circuit-breaker upwards and pull forward to remove. 3 3.3.6.4 Fitting motor circuit-breaker MS1 3 Attach the motor circuit breaker at position 1 on the top hat rail Push down lightly on the motor circuit- breaker until it snaps into place 3 3 Check that the motor circuit-breaker is seated firmly 3 Fig. 3.3 - 10 Fitting the motor circuit-breaker 36 03/2003 Edition Student Guide HS-50 / HS-60 Advanced II 3 Power Supply

? Connect up the terminal wires.

? Insert the motor trip block (see section 3.3.5.4 on page 3 - 33).

? Use the digital voltmeter to measure the supply voltages at terminals L1, L2, L3 or T1, T2 and

T3.

? Complete the servicing work as described in 3.3.3 on page 3 - 29.

3 3.3.7 3.3.7.1 Replacing contactor SZ1 (00341201-01) Tools and equipment – Set of slotted-head screwdrivers – Self-adhesive labels – Digital multimeter – HS-50 detailed circuit diagrams 3 3.3.7.2 Parts SIRIUS 3RT10/24 VDC contactor, size S2, item number 00341201-01 3 3 3.3.7.3 Removing contactor SZ1 DANGER Switch off the placement system and disconnect from the power 3 supply (see sections 3.3.1 and 3.3.2). Student Guide HS-50 / HS-60 Advanced II 3 Power Supply 03/2003 Edition 37

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