Parker HMR 08 Series Assembly And Operating Instructions Manual

21ENSS SSESE- R E+7.5 Position Detection with Magnetic SwitchesATTENTIONPotential damage to equipment!Missing or incorrect signals from the end positionswitches in the controller.► Essentially, clamp and set up end switchesbefore commissioning!7.5.1 DefinitionEnd position switchThe use of end position switches is highly recommended for operating electric linear drives to prevent mechanicaldamage in the end positions. End position switches must be implemented in the NC (normally closed) function so thatany cable breaks can be detected by the controller.Homing switchIn addition to the end position switches, a homing switch can be used to assign a repeatable zero point to the linearsystem. Homing switches are normally implemented in the NO (normally open) function. In this process, the homingswitch must be between the end position switches.Switch typesThe magnetic switches described in the following can be used as switches. The switch function is triggered by themagnetic package mounted under the carriage. The user can use mechanical switches, proximity sensors etc. in thesame manner.Setting up switch pointsThe switch point for the end position switches must be selected on both sides of the linear drive so as to ensurebraking of the payload up to a standstill (depending on the motor system used) within the safety distance and at anytime during operation. Depending on the application, the homing switch can be set up anywhere between the endposition switches. If the switch points are not indicated when ordering, the user must carry out the alignment as wellas the connection of the magnetic switches.NOTEEssentially, the user is responsible for checking each lineardrive for proper setup and the function of the magneticswitches.Example: Product code with digit in bold which displays the position of the safety distanceHMRxxxx-xxxx-xxxx2xxxx => 2 = 20 mm safety distance.SS = Safety StrokeES = Effective StrokeVerfahrwegE- R E+SS SSES