monitored systems | elevators monitoring | industrial equipment monitoring

ELEVATORS MONITORING

SED device may be connected to an electric/hydraulic elevator installation. The basic function for this application is to realize a vocal link between the person(s) blocked in the elevator’s cabin and the dispatcher system, in the situation of a default caused by the elevator or external of it.

It is known that elevators are compulsory endowed with intercommunication systems (interphones) between the cabin and the elevator’s room where the control is placed.

On this panel, the voltage battery (usually, 12 V) is placed and it supplies the communication interphone between the elevator’s cabin and an intervention point from a limiting area and for the alarm system. The alarm system is driven by the persons blocked in the cabin by means of an alarm switch in case of a drop in tension in the power distribution net.

In this case, SED is equipped with an audio module and a card reader. This reader is needed to monitor the maintenance and repair interventions of the supervised elevator. The existing installation (interphone/alarm) remains in the elevator’s configuration.

SED will be connected to this and the alarm switch placed in the elevator’s cabin will have a double function: usual alarm and emergency appeal of a phone number or phone numbers of the company responsible for the elevator’s repair. These phone numbers exist in a dispatcher type switchboard with a permanent service routine.

The emergency appeal has a permanent effect or only in case of a default that may appear in the elevator’s operation.

The defaults’ monitoring will be done by means of the PLC module attached to the control panel of the elevator, that validates the command for the phone appeal.