Shanghai STEP Electric Corporation
Chapter 8 Elevator Elevator Commissioning Guide
⑴ Select magnetic switch as leveling switch:
①Insert the leveling switch into the leveling spile deep enough to ensure that the action of leveling
switch is effective and reliable;
②The verticality of the leveling spile is very demanding to ensure that it will not happen for
leveling stop that only one leveling switch acts effectively, but the other has run out of
effective motion range, which will affect the normal operation of elevator.
⑵ Select optical switch as leveling switch (our company generally accepts low-level effective
signal for the input interface of the serial system):
Follow the following points to gain a better effect:
① Scrape the paint in the shadow around the installation hole, to guarantee that the metal shell is
well grounded by photoelectric switch bolts, brackets and car top; if press an earthing wire
under the mounting bolt after scrape, and connect it to the earthing pile of the connection box
on the car top, the effect will be better;
② Photoelectric switch should be connected to the connection box on the car top, and ground the
shield layer;
③ Photoelectric switch should use normal open switch, to reduce interference of photoelectric
switch itself.
④ The photoelectric switch flashing in operation may cause exception for elevator operation or
leveling, then it may be subject to interference, so connect a capacitor of 0.1μF63V between
the photoelectric switches COM and PS (or PX). (See Diagram 8.6)
Fig 8.6 Capacitor connection diagram
Note: improper dispose of leveling photoelectric switch may interfere with normal operation,
and frequent change is not a fundamental solution, and will greatly increase the cost. Taking the
above 4 methods will greatly reduce the interference and even eliminate interference.
◆Notes for leveling switch installation
① The optical switches or magnetic switches should be inserted to 2 / 3 of the leveling spile, and
check the leveling spile on each floor should be vertical and the insertion depth should be the
same.
② After the optical switches or magnetic switches inserted into the leveling spile, ensure that
both ends expose 10mm-30mm, as shown below:
③ During installation, Keep the spile center on each floor is along the same line with the sensor
center, which will guarantee the leveling effect.
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