Guidelines for planning the electrical installation 93connectors of the module. See the table below for the sensor insulation requirement.For sensor connection to the extension module, see its manual.4. You can connect a sensor to an external thermistor relay the insulation of which israted for the same voltage level as the main circuit of the drive. Drive I/O, I/O extension and encoder interface modulesSee• section AI1 or AI2 as a Pt100, Pt1000, PTC or KTY84 sensor input (page 137)• section DI6 as a PTC sensor input (page 136)• FPTC-01 thermistor protection module (option +L536) for ACS880 drives user’smanual (3AXD50000027750 [English])• FPTC-02 ATEX-certified thermistor protection module Ex II (2) GD (option+L537+Q971) for ACS880 drives user’s manual (3AXD50000027782 [English]).This table shows what temperature sensor types you can connect to the drive I/Oextension modules as well as the insulation requirement for the sensor.Note: The inaccuracy of the drive analog inputs for Pt100 sensors is 10 °C (18 °F). If abetter accuracy is needed, use the FAIO-01 analog I/O extension module (option +L525).Extension module Temperature sensortype Temperature sensorinsulation requirementType Insulation/Isolation PTC KTY Pt100,Pt1000FIO-11 Galvanic isolation between sensorconnector and other connectors(including drive control unit connector)- X X Reinforced insulationFEN-xx Galvanic isolation between sensorconnector and other connectors(including drive control unit connector)X X - Reinforced insulationFAIO-01 Basic insulation between sensorconnector and drive control unitconnector. No insulation between sensorconnector and other I/O connectors.X X X Basic insulation. Connectorsof extension module otherthan sensor connector mustbe left unconnected.FPTC-xx Reinforced insulation between sensorconnector and other connectors(including drive control unit connector)X - - No special requirement
