KEB Combivert F5 Installation Manual

Also see for COMBIVERT F5: INSTALLATION GUIDELINE Installation manual Instruction manual Instruction manual Installation manual

GB - 18Safety Function STORegular electromechanical equipment are liable to abrasion. Loss of these equipment occursby using the STO function and the maintenance costs are reduced.Characteristic data for „Safe torque off“• Power supply for the rotation direction of the motor is interrupted (free-wheeling motor)• Used when monitoring of standstill is not necessary• Unintentional starting of the motor is prevented• No galvanic isolation of the motor from the dc link circuitWhat is realized by the STO function related to EN 60204 -1 ?• Emergency stop can be realized by the STO function, since the mains voltage may re-main effective.• Emergency stop can be realized only in connection with a line contactor, which discon-nects the mains voltage !3.1 Emergency stop according EN 60204By using suitable safety switchgear units, stop category 0 and 1 according to EN 60204 -1can be reached by the STO function in the system. Note chapter 3.6 for safety switchgearunits.Stop category 0 „uncontrolled stop“, i.e. stop by immediate removal of power to theactuators.Stop category 1„controlled stop“, i.e. power to the actuators is retained to applybraking until the stop is achieved. The energy is switched off atstandstill.Emergency stop to EN 60204 must be functional in all operating modes of the drive module.The reset of emergency stop may not lead to an uncontrolled start of the drive.Restart onlyafter confir-mationThe drive restarts if function STO is no longer released. In orderto comply with EN 60204, it must be ensured by external meas-ures that the drive restarts only after confirmation.Without mechanical brake the drive leads to coast; motor is free-wheeling. Additional protec-tive devices must be installed (e.g.locking systems) if damage to persons or property canoccur.Ensure coastof the motorIf danger to persons occur after switching off the motor controlby STO, the entrance to hazard areas must remain closed untilthe drive stops.Jerks in errorcaseIn case of double malfunction it can lead to unwanted jerk, therotation angle is depending on the number of poles of the se-lected drive and the gear ratio.