Mode 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 (scaleable)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-voltage terminals.Pulse inputs:Programmable pulse inputs 2Terminal number pulse 29, 33Max. frequency at terminal, 29, 33 110 kHz (Push-pull driven)Max. frequency at terminal, 29, 33 5 kHz (open collector)Min. frequency at terminal 29, 33 4 HzVoltage level see section on Digital inputMaximum voltage on input 28 V DCInput resistance, Ri approx. 4 kΩPulse input accuracy (0.1 - 1 kHz) Max. error: 0.1% of full scaleAnalog output:Number of programmable analog outputs 1Terminal number 42Current range at analog output 0/4 - 20 mAMax. resistor load to common at analog output 500 ΩAccuracy on analog output Max. error: 0.8 % of full scaleResolution on analog output 8 bitThe analog output is galvanically isolated from the supply voltage (PELV) and other high-voltage terminals.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 and galvanically isolated from the supply voltage (PELV).Digital output:Programmable digital/pulse outputs 2Terminal number 27, 29 1)Voltage level at digital/frequency output 0 - 24 VMax. output current (sink or source) 40 mAVLT® HVAC Drive Operating Instructions 8. SpecificationsMG.11.A6.02 - VLT® is a registered Danfoss trademark 1498