Hitachi’s PES-02 electronic safety controller is a SIL 3 certified electronic safety device that is intended to be applied as an 'add-on system', independent from the lift control system. It is certified by Liftinstituut.
The controller is able to fulfil several safety functions like amongst others monitoring the normal slowdown of the machine in case of reduced buffer stroke, the ascending car overspeed detection and the detection of unintended car movements with open doors.
Mr. Hidenori Sekine, Department Manager Elevator Development Dept. Hitachi, Ltd. Building Systems Business Unit: “We selected Liftinstituut for this PESS-certification and we have been very pleased with the cooperation with Liftinstituut. We were especially impressed by the structured approach, consisting of eight stages. It really felt like a team effort of two parties combined and was realized in time, as scheduled in advance. Due to its professional support and guidance, Hitachi will not hesitate to contact Liftinstituut again for comparable new future developments.”