This condition activates the Fault RSP (code 20) and prevents the movement of the elevator car in normal operation
(Movement is now possible only in Inspection mode).
After the end of the Inspection manoeuvre the personnel must:
Return the selector switch and any STOP buttons to ‘Normal’ and exit the shaft of lift.
Close the landing doors (check the safety chain) and carry out the reset using one of the following methods:
From lowest floor with three quick opening / closing of the release key or.
From the panel with three quick presses of button
From the PlayPad with specific reset (RSP reset).
Characteristics of the auxiliary contact on the door (s) at the lowest floor:
Monostable NC contact (does not open during normal door operation).
The auxiliary contact is electrically connected to the BDU’s Door input or to the terminal (screw) of the controller on the
E511 input (NC contacts in series when there are multiple shaft access doors eg. Pit Access Hatch).
No Access the Car roof
No control required for access to the cabin roof.
EN81-21 Installation with door’s Bistable contacts
Headroom and reduced pit (Compliance with Article 2.2 of Annex 1 of Directive 95/16 / EC of the European
Community)
In systems where the minimum required dimensions in the top and bottom of the shaft cannot be guaranteed, according to
the requirements of the regulation EN 81, special alterations must be made to the system and the controller in order to
avert the risk of injury to workers carrying out maintainance work in the shaft.
The following is a relevant section from the regulation:
“The lift must be designed and manufactured in order to prevent the risk of crushing when the elevator car is in an extreme
position. In order to achieve this, a free space or refuge beyond the extreme positions must be provided. However, in
exceptional cases, allowing the Member States the possibility of giving prior approval, particularly in existing buildings, the
competent authorities may provide other appropriate means to avoid this risk, if the previous solution is impossible to
achieve”.
The controller of the lift is able to automatically manage the floor doors opening control in systems with limited space in the
extreme points of the shaft. As indicated schematically in the illustration below, the controller must be equipped with a
control circuit at the top/bottom of the shaft so that, when the maintenance worker opens the landing door to access the
shaft, a contact connected to the dedicated input which provides monitoring of shaft access to the lift controller.
The specific procedure is according to the type of Installation as described in following sections.
The reset procedure is possible only if bistable contacts are open, otherwise the controller checks an automatic reset of
bistable contacts (without any reset procedure): so the controller gives a RSP Fault (Cod 121) and it is necessary to open
the Bistable circuit and after make a reset procedure.
Reduced Head Configuration
