Conveyance control and indication system

The system provides:

  • Two-way voice communication between the hoist operator and the personnel at the conveyance roof or in the cage

  • Issuing motion commands to the drive room from the device installed at the conveyance roof or in the cage

  • Issuing EMERGENCY STOP and LOCK signals to the hoist control circuit by the personnel at the conveyance roof or in the cage in order to stop or prevent hoist motion

  • Signal indication by engaging a respective relay in the central station cabinet and displaying a message at the hoist operator’s display, both with sound alarm

  • Receiving hoist status (GO, STOP) radio signals from the hoist building equipment at the cage roof and subsequent light indication thereof

  • Issuing a sound alarm to announce recording of the communication between the operator and the personnel in the cage or at the conveyance roof by means of a voice recorder installed in the hoist room

  • Data channel to exchange digital data between the cage/skip equipment and the plant room

  • Uninterrupted automatic performance monitoring of all system devices and components

  • Issuing an automatic hoist stop signal upon loss of connection and conveyance trip, to be processed by the hoist control circuit as provided for by the workflow

  • Uninterrupted monitoring of the battery level and indication of battery discharge to the hoist operator

  • Data output to the daily log; the Customer may use the log unedited to arrange the log in the order preset by the Customer

System scope for two-cage machine:

The conveyance control and indication system is a set of items located in various points at the hoist, interconnected to act as intended.

Main performance specifications

Property

Value

Transceiver frequency range, GHz

2.4002 ... 2.4785

Central station:

 

Dimensions, mm

540×520×218

Feed voltage, V

220 VАС

Ex rating

[Ex ia Ma] I

Enclosure protection rating

IP54

Hoist operator’s indication panel:

 

Dimensions, mm

400×250×150

Feed voltage, V

24 VDС

Enclosure protection rating

IP54

UOPD-01 deflection sheave platform data processing and transfer unit (for two conveyances):

 

Dimensions, mm

430×430×244

Feed voltage, V

12 VDС

Ex rating

PO Ex ia I Ma

Enclosure protection rating

IP65

SK-02 cage station:

 

Dimensions, mm

554×550×218

Feed voltage, V

12 VDС

Ex rating

PO Ex ia I Ma

Enclosure protection rating

IP65

Power supply:

 

Dimensions, mm

330×210×198

Feed voltage, V

12 VDС

Ex rating

PO Ex ia I Ma X

Enclosure protection rating

IP65

PSSK-01 cage indication and communication station:

 

Dimensions, mm

75×285×75

Feed voltage, V

12 VDС

Ex rating

PO Ex ia I Ma

Main system components:

  • Central station

  • Hoist operator’s indication panel

  • Deflection sheave platform data processing and transfer unit with an antenna assembly

  • Cage station with an antenna assembly

  • Cable slack sensors, cage gate sensors, arresters

Versions of the system components shall be selected on the basis of a requirements specification and a datasheet.

Advantages over similar systems:

  • Higher interference resistance

  • Big amount of data transferred from the conveyance

  • Ability to process analogue and pulse signals from the sensors installed at the conveyance, which allows real-time monitoring of wire condition

  • Possibility to control conveyance equipment from the surface by a wireless communication channel

  • The system can uninterruptedly monitor the status and performance of all connected devices and sensors. Unit input statuses can be checked at the respective page

  • Loss of connection or sensor fault is indicated with a text message at the operator’s display

  • Configuring from the operator’s panel: a sensor may be excluded or other settings can be made in the password protected settings menu

Conveyance control and indication system block diagram

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