Optional I/O extension modules 251Installing the moduleSee chapter Installing option modules on page 132. Electrical installationWarningsWARNING! Obey the instructions in chapter Safety instructions on page 13. Ifyou ignore them, injury or death, or damage to the equipment can occur. If youare not a qualified electrician, do not do electrical work.Make sure that the drive is disconnected from the input power duringinstallation. If the drive is already connected to the input power, wait for5 minutes after disconnecting the input power.Necessary tools and instructions• Screwdriver and a set of suitable bits• Cabling toolsTerminal designationsFor more detailed information on the connectors, see section Technical data onpage 262.Relay outputs115/230 V inputsMarking Description50 RO4C Common, C51 RO4A Normally closed, NC52 RO4B Normally open, NO53 RO5C Common, C54 RO5A Normally closed, NC55 RO5B Normally open, NOMarking Description70 HDI7 115/230 V input 171 HDI8 115/230 V input 272 NEUTRAL 1) Neutral point73 HDI9 115/230 V input 374 HDI10 115/230 V input 475 NEUTRAL 1) Neutral point
