Inverter size 36 37 38Housing PModule number 3braking optionMin. braking resistor 10) 13) R_min / Ω 2.1Max. braking current 10) 13) IB_max_dc / A 380Switching level braking transistor UB_dc / V 780Monitoring braking transistor (K1 / K2) 11) 13) Umon_dc / V 24Imon_dc / A 2Operating conditions air coolerSwitching frequency fS / kHz 2 –Max. heat sink temperature (OH) 15) t_max / °C 90 –External fan power supply Uext_dc / V 24 –13) Iext_dc / A 2.5 4 14) 2.5 4 14) –Operating conditions liquid coolerSwitching frequency fS / kHz 2 4 8 2 4 8 2 4Max. heat sink temperature (OH) 15) t_max / °C 90 73 60 90 73 60 90 73∆T Flow/return flow series connection ΔT / K 9...12∆T Flow/return flow parallel connection ΔT / K 3...7Flow temperature typical tin_typ / °C 25Flow temperature maximum tin_max / °C 40Liquid cooler content 13) V / l 0.8Volume flow Q / l/min => Diagrams of the cooling designPressure drop Δ pv / barMax. permissible operating pressure p _max / bar 10Other dataMax. weight air cooler 13) m_max / kg 97.5Max. weight liquid cooler 13) m_max / kg 96Table 9: Technical data of the 400 V class master / slave / slave1) Restrictions when using HF filters.2) Phase conductor grounded mains are only permissible without HF filters.3) Protection in accordance with UL => Protection of drive converters.4) The voltage at the motor is dependent on the series-connected units and on the control method.5) The output frequency is to be limited in such way that 1/10 of the switching frequency is not exceeded.Devices with higher maxi-mum output frequency are subject to export restrictions and are only available upon request.6) Max. current before the OL2 function triggers.7) With the regulated operating modes 5 % are to be subtracted as control reserve.8) Applies to rated input voltage 400 V, 25 °C ambient temperature.9) Maximum additional chargeable capacity per module.10) Data apply to a switching level for the braking transistor of 780 V DC.11) => Wiring Diagrams. UL, C-UL E120782 UL508, CSA C22.2 No.14; UL1604 (class I, Division 2, Group A, B, C, D); 277 V AC 8 A,General use, 24 V DC 6 A, General use, B300, R300 250 V AC / max. 2 A, 24 V DC / max. 2 A (Pilot Duty).12) The internal fans are switched off below the operating voltage range.13) These data are valid per module.14) The use of stronger heat sink fans for adaption to the ambient conditions or at higher overload (180 %) is possible after consultationwith KEB.15) The specifications apply to devices without derating of the switching frequency.16) The specifications only apply if there is parallely no power output via the motor connection terminals U / V / W.ATTENTION An input choke is absolutely necessary.The technical data are for 2/4-pole standard motors. With other pole numbersthe drive converter must be dimensioned onto the rated motor current. ContactKEB for special or medium frequency motors.34TecHNIcAL DATA 400V cLASS
