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Gem State Elevator Upgrades


Location
Idaho
Publication Date
12/09/2019 11:32 AM EST
Closing Date
01/17/2020 06:00 PM EST
Issuing Organization
City of Idaho Falls
Solicitation Number
Description

Specifications include, but are not limited to: Door Operation - A closed loop permanent magnet PWWM high-performance door operator shall be provided to open and close the car and hoist-way doors simultaneously. - Door movement shall be cushioned at both limits of travel. - An electric contact shall be provided on the car at each car entrance to prevent the operation of the elevator unless the car door is closed. - The door operator shall be arranged so that, in case of interruption or failure of electric power, the doors can be readily opened by hand from within the car, in accordance with applicable code - Emergency devices and keys for opening doors from the landing shall be provided as required by the local code - Doors shall open automatically when the car has arrived at or is leveling at the respective landings. Door shall close after a predetermined time interval or immediately upon pressing of a car button - A door open button shall be provided in the car. Momentary pressing of this button shall reopen the doors and reset the time interval - Door hangers and tracks shall be provided for each car door. Tracks shall be contoured to match the hanger sheaves - The hangers shall be designed for power operation with provisions for vertical and lateral adjustment - Hanger sheaves shall have polyurethane tires and pre-lubricated sealed for life bearings Entrance Protection - The elevator car shall be equipped with an electronic protective sensor extending the full height of the car. When activated, this sensor shall prevent the doors from closing or cause them to stop and reopen if they are in the process of closing. - The doors shall remain open as long as the flow of traffic continues and shall close shortly after the last person passes through the door opening. Control System - A microprocessor-based control system shall be provided to perform the functions of safe elevator motion. Included shall be all of the hardware required to connect, transfer and interrupt power, and to protect the motor against overloading. - The control for the hoist motor will be by means of a solid-state drive system. - The system will be a controlled pulse-width modulated AC vector drive. The variable voltage variable frequency drive will convert the AC power supply using a two-step process to a variable voltage variable frequency power supply for use by the hoist motor. - Varying the frequency and voltage of the motor will automatically and continuously control the speed, acceleration and deceleration. - The system will be a closed loop system - Each controller cabinet containing memory equipment shall be properly shielded from line pollution - The microcomputer system shall be designed to accept reprogramming with minimum system down time - All high voltage (110V and above) contact points inside the controller cabinet shall be protected from accidental contact in a situation where the controller doors are open - The microprocessor-based control system shall utilize on-board diagnostics for servicing, troubleshooting and adjusting without the use of an outside service tool.

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