Danfoss VLT AQUA Drive Design Manual

Also see for vlt aqua: Instructions Design guide Instruction manual Operating instructions Design guide

Contents

Cable lengths and cross-sections:Max. motor cable length, shielded/armored VLT AQUA Drive: 492 ft [150 m]Max. motor cable length, unshielded/unarmored VLT AQUA Drive: 984 ft [300 m]Max. cross-section to motor, line power, load sharing and brake *Maximum cross-section to control terminals,rigid wire0.0023 in.2 [1.5 mm2]/16 AWG (2 x 0.0012 in.2[2 x 0.75 mm2 ])Maximum cross-section to control terminals, flexible cable 0.0016 in. 2 [1 mm 2]/18 AWGMaximum cross-section to control terminals, cable with en-closed core 0.00078 in.2 [0.5 mm 2 ]/20 AWGMinimum cross-section to control terminals 0.00039 in.2 [0.25 mm2]* See Line Supply tables for more information!Control card, RS-485 serial communication:Terminal number 68 (P,TX+, RX+), 69 (N,TX-, RX-)Terminal number 61 Common for terminals 68 and 69The RS-485 serial communication circuit is functionally separated from other central circuits andgalvanically isolated from the supply voltage (PELV).Analog inputs:Number of analog inputs 2Terminal number 53, 54Modes Voltage or currentMode select Switch S201 and switch S202Voltage mode Switch S201/switch S202 = OFF (U)Voltage level : 0 to + 10 V (scaleable)Input resistance, Ri approx. 10 kΩMax. voltage ± 20 VCurrent mode Switch S201/switch S202 = ON (I)Current level 0/4 to 20 mA (scalable)Input resistance, Ri approx. 200 ΩMax. current 30 mAResolution for analog inputs 10 bit (+ sign)Accuracy of analog inputs Max. error 0.5% of full scaleBandwidth : 200 HzThe analog inputs are galvanically isolated from the supply voltage (PELV) and other high-voltageterminals.3. VLT AQUA Selection VLT® AQUA Drive Design Guide52 MG.20.N2.22 - VLT® is a registered Danfoss trademark.3