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Smith & Caughey, Queen Street


•  9 floor Triplex full-collective elevators
•  Speed 1.5 m/s
•  Capacity 16 person, 1340kg
•  Completed May 2014 (3 stages over 3 years with 1 elevator
    completed per phase, approximately 12 weeks per phase)

Existing equipment prior to modernisation

•  Otis Relay Controller (installed in nineteen sixties)
    Motor generator set coupled to DC motor & gearbox
    (Ward Leonard control)


To allow the modernisation program to fit within the clients yearly capitalization expense budgets. Starting in 2012, this modernisation was completed in 3 stages (1 elevator per year). The first stage saw the completion of elevator 3 which included dual entry doors and the installation of the group control system (dispatching controller). Technical challenges included the fitting of electronic overlays to the existing Otis relay and contactor controllers (elevators 1 & 2) so the group controller could communicate with them via serial network.

New Equipment fitted

•  SGF16-TSS micro processor controller and variable frequency
    drive module

•  Variable frequency AC hoisting motor and gearbox
•  New traction ropes (wire ropes)
•  Shaft information system (position feedback)
•  Landing button and position display panels
•  Car button and position display panel
•  Security interfacing to new card reader system
•  Complete rewire of car and car travelling electrical cables
•  Variable frequency car door controller and variable AC door motor
•  Replacement of landing door hangers
•  Re-skinning of landing doors and landing architraves in
    stainless steel

•  New car interior fit out

Postal address
Physical address
Contact us
Phone: (09) 444 4038
Electronic & Electrical
Technologies Ltd
PO Box 101 426
NSMC, Auckland
Electronic & Electrical

Technologies Ltd

Unit 8, 7-9 Marken Place

Glenfield, Auckland 0627

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