6.7.2 Temperature detection T1b, T2bParameter In.17 displays the function of the used temperature input in the first digitof the hex value. The KEB COMBIVERT is delivered as standard with a switchablePTC / KTY evaluation. The required function is set with Pn.72 (dr33 at F6) and operatesaccording to the following table:In.17(Hex)Function of T1x,T2xPn.72(dr33)resistance Display ru.46(F6 => ru28)Error/warn-ing 1)5xhKTY84 0< 215 Ω Detection error 253 yes498 Ω 1°C no 2)1 kΩ 100°C yes 2)1.722 kΩ 200°C yes 2)> 1811 Ω Detection error 254 yesPTC(in accordance withDIN EN 60947-8)1< 750 Ω T1x-T2x closed no0.75…1.65 kΩ(reset resistance) undefined –1.65…4 kΩ(tripping resistance) undefined –> 4 kΩ T1x-T2x open yes6xh PT100 – upon requestTable 3: Temperature detection1) The column is valid at factory setting. The function must be parameterized appropriate with parame-ters Pn.12, Pn.13, Pn.62 and Pn.72 for F5 in operating mode GENERAL.2) The switch-off is dependent on the adjusted temperature in Pn.62 (F6 => Pn11 / 14).The behaviour of the inverter in case of error / warning is defined with param-eter Pn.12 (CP.28), Pn.13 (F6 => Pn12 / 13).Depending on the application, the temperature input can be used for the following func-tions:Function Mode (F5 => Pn.72; F6 => dr33)Motor temperature display and monitoring KTY84Motor temperature monitoring PTCTemperature control for liquid-cooled motors 1) KTY84General fault sensing PTCTable 4: Functions temperature input1) If the temperature input is required for other functions, the motor temperature control can also occurindirectly via the coolant circuit of the inverter.62ELEcTrIcAL INSTALLATION
