2 Assembly and installationBU 0135 en-4118 352.2 Installation of optional modulesModules must not be inserted or removed unless the device is free of voltage. The slots may only beused for the intended modules.2.2.1 Option locations on the deviceFigure 5: Option locations1 View from left2 View from rightThe various installation locations for the optional modules are displayed in the above-mentioneddrawings. Option location 1 is used to install an internal bus module or an internal power supply.External bus modules or 24 V DC power supplies can be implemented at option location 3L or 3R.Option locations 4 and 5 are used to install M12 sockets or connectors or for cable glands. Only oneoption can be attached in an option location, of course.OptionlocationPosition Meaning Size Comments1 Internal Mounting location for customer units SK CU4-…3* on side Mounting location for• external technology unit SK TU4-…• power connector3 A/B* on side Cable gland M25 Not available if location 3is occupied or SK TU4-…is fitted.4*5*on side Cable gland M16 Not available if SK TU4-…is fitted.* R and L (right and left side) – with engine mounting: Viewing direction from fan impeller to motor shaft
