HS50_advance_level 2 - 第73页
Stud ent Gu ide HS-5 0 Adva nced II 07/2 002 Ed ition 3 Power Supply 35 3DUW V PKZ2/3 -pole/40 motor circuit- breake r , item numb er 00342 494-01. 5HPRYLQJPRW RU FLUFXLWEUHDNHU06 DANGER Switc h o…
07/2002 Edition Student Guide HS-50 Advanced II
3 Power Supply
34
➠ Check the overcurrent trip and short-circuit current trip threshold settings.
➠ 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.
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– Set of slotted-head screwdrivers
– Self-adhesive labels
– Digital multimeter
– HS-50 detailed circuit diagrams
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ZM-16-PKZ2 12 A 190 A
ZM-32-PKZ2 24 A 375 A
Check the overcurrent trip
threshold (yellow dial)
Check the short-circuit
current trip threshold
(read dial)
Student Guide HS-50 Advanced II 07/2002 Edition
3 Power Supply
35
3DUWV
PKZ2/3-pole/40 motor circuit-breaker, item number 00342494-01.
5HPRYLQJPRWRUFLUFXLWEUHDNHU06
DANGER Switch off the placement system and disconnect from the power
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
the motor circuit breaker (1)
Remove the terminal wires one by one
and identify with adhesive labels
07/2002 Edition Student Guide HS-50 Advanced II
3 Power Supply
36
➠ 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.
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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
Check that the motor circuit-breaker
is seated firmly