MAINTENANCE CONTROL SYSTEM, PEOPLE CONVEYOR WITH MAINTENANCE CONTROL SYSTEM AND METHOD OF USING MAINTENANCE CONTROL SYSTEM

Maintenance control system (40) for a people conveyor (1) of the type having a tread band (12) operable to transport passengers between landings (20, 21), the people conveyor (1) comprising a drive control unit (42) for controlling operation of the tread band (12), and a safety control circuit (46) including a plurality of safety switches (47, 48, 64), the maintenance control system (40) comprising a remote control unit (44). The remote control unit (44) comprises at least one maintenance operation key (58, 60, 62) configured to manually control operation of the tread band (12) by operating the at least one maintenance operation key (58, 60, 62), an emergency key (57) configured to provide an emergency stop signal, and a transmitter/receiver (45) configured to wirelessly communicate control signals between the remote control unit (44) and the drive control unit (42). The remote control unit (44) is configured to wirelessly communicate with the safety control circuit (46) of the people conveyor (1) to stop operation of the tread band (12), irrespective of the state of the at least one maintenance operation key (58, 60, 62), depending on the state of any of the safety switches (47, 48, 64) in the safety control circuit (46).