User manual PILZ PNOZ X7 24V DC

[. . . ] The unit may only be installed and operated by personnel who are familiar with both these instructions and the current regulations for safety at work and accident prevention. Follow CEN and local regulations especially as regards preventative measures. [. . . ] There is galvanic isolation between the E-STOP button and the reset button on the PNOZ X7 AC version. Feedback control loop for monitoring external relays / contactors The relay complies with the following safety requirements: · The correct opening and closing of the safety function relays is tested automatically in each on-off cycle. Function: apply the operating voltage via the E-Stop button, link between Y1-Y2 or activate the reset button between Y1-Y2. Emergency stop button not operated): Relays K1 and K2 energise and latch. Automatic reset: unit is active, as soon as the input circuit is closed. Manual reset: unit is only active, when a reset button has been pressed. If the unit is installed on a vertical mounting rail (35 mm), ensure it is secured using a fixing bracket such as end bracket. To prevent contact welding, a fuse (6 A quick / 4 A slow acting) must be connected before the output contacts. Capable capacity CL must be adhered to, otherwise the unit could malfunction. Low currents should not be switched across contacts across which high currents have previously been switched. The unit must be earthed - PNOZ X7 24 VAC/DC at the connection terminal A2 - PNOZ X7 AC at the terminal marked This enables earth faults in the circuit Y1Y2 to be detected · Feedback control loop with manual reset: Connect reset button at Y1 - Y2 or connect external contactors in series The safety contacts are closed. If the input circuit is opened (E-Stop activated), the safety contacts 13-14/23-24 open. [. . . ] Cable cross section (screw terminals)/Capacité de raccordement (borniers à vis) 1 Leiter, flexibel/1 core, flexible/1 conducteur souple 2 Leiter gleichen Querschnitts, flexibel mit Aderendhülse, ohne Kunststoffhülse/ 2 core, same cross section flexible with crimp connectors, without insulating sleeve/ 2 conducteurs de même diamètre souple avec embout, sans chapeau plastique ohne Aderendhülse oder mit TWIN-Aderendhülse/without crimp connectors or with TWIN crimp connectors/souple sans embout ou avec embout TWIN Anzugsdrehmoment für Schraubklemmen/Torque setting for screw terminals/ couple de serrage (borniers à vis) Abmessungen (Schraubklemmen) H x B x T/Dimensions H x W x D (screw terminals)/ Dimensions (borniers à vis) H x P x L Einbaulage/Fitting Position/Position de travail Gewicht/Weight/Poids PNOZ X7 AC/DC PNOZ X7 AC Es gelten die 09/04 aktuellen Ausgaben der Normen The version of the standards current at 09/04 shall apply 3, 0 A To prevent failure of the unit, all output contacts should be fused adequately. With DC contactors/relays use suitable spark suppression to ensure extended life of the contactors/relays. [. . . ]