Cansec MAP2 Manuale di installazione - Pagina 15

Sfoglia online o scarica il pdf Manuale di installazione per Controllore Cansec MAP2. Cansec MAP2 16. Elevator control

Connection to the Elevator Controls

For safety and system serviceability the access control system should be isolated from the power

connections of the elevator buttons. An Elevator Interface Relay Box must be used for this

purpose, to prevent high voltage and high voltage spikes from interfering with the access

control system. This Elevator Relay Interface Box must be supplied by the elevator company to

avoid potential liability issues. The Elevator Interface Relay Box must provide isolating relays

which physically isolate the voltage present on the elevator buttons from the H1000 outputs.

It is important to understand that the MAP2 or H1000 panel's output relays ("Form C") will be

controlling the coils of the relays in the interface box and that a single shielded single pair must

be used for each relay connection. Multi-pair cable must not be used as inductive voltage spikes

will be passed onto the adjacent wires. These voltage spikes can cause the access control panel

to be intermittent. To eliminate relay coil voltage spikes it is important to place a power diode

(1N4007) right at the coil connection.

If the elevator relay interface box contains 110/220 VAC, it should be labeled outside with

"DANGER High Voltage Contained Inside". This is important for the safety of personnel

doing maintenance.

In the event that a building fire alarm occurs it is imperative that all floor selector buttons in

the cab are operational. When a fire alarm occurs, the fire alarm panel typically operates a dry

relay contact. In normal operation (No Fire Alarm) this "Form C" relay contact is "Closed". In

the event of a fire alarm this "Form C" relay contact goes "Open". This relay is used to

automatically bypass the access control system in the event of a fire alarm so that all floor

selection buttons are operational.

It is advisable to have an Elevator Access Controller Bypass Switch present. This allows the

elevator company an easy means to work on the elevator without requiring the presence of the

company in charge of maintaining the access control equipment. Similarly, if there is a failure

with the elevator access control system, the bypass switch will allow elevator operation until the

access control system is repaired.

MAP2 Elevator Control

Page 15 of 16

Installation Guide

April 2020 • Rev. 1.0