VLT ® 2900 Series Control card, analog inputs: Number of analog voltage inputs 1 pcs. Terminal number 53 Voltage level 0 - 10 V DC (scaleable) Input resistance, R i approx. 10 k Ω Max. voltage 20 V Number of analog current inputs 1 pcs. Terminal number 60 Current level 0/4 - 20 mA (scaleable) Input resistance, R i approx. 300 Ω Max. current 30 mA Resolution for analog inputs 10 bit Accuracy of analog inputs Max. error 1% of full scale Scan interval 13.3 msec The analog inputs are galvanically isolated from the supply voltage and other high-voltage terminals. Control card, pulse inputs: Number of programmable pulse inputs 1 Terminal number 33 Max.
frequency at terminal 33 67.6 kHz (Push-pull) Max. frequency at terminal 33 5 kHz (open collector) Min. frequency at terminal 33 4 Hz Voltage level 0 - 24 V DC (PNP positive logic) Voltage level, logic '0' Voltage level, logic '1' > 10 V DC Maximum voltage on input 28 V DC Input resistance, R i approx. 2 k Ω Scan interval 13.3 msec Resolution 10 bit Accuracy (100 Hz- 1 kHz) terminal 33 Max. error: 0.5% of full scale Accuracy (1 kHz - 67.6 kHz) terminal 33 Max. error: 0.1% of full scale The pulse input (terminal 33) is galvanically isolated from the supply voltage and other high-voltage terminals. Control card, digital/frequency output: Number of programmable digital/pulse outputs 1 pcs.
Terminal number 46 Voltage level at digital/frequency output 0 - 24 V DC (O.C PNP) Max. output current at digital/frequency output 25 mA. Max. load at digital/frequency output 1 k Ω Max. capacity at frequency output 10 nF Minimum output frequency at frequency output 16 Hz Maximum output frequency at frequency output 10 kHz Accuracy on frequency output Max. error: 0.2 % of full scale Resolution on frequency output 10 bit All about VLT 2900 The digital output is galvanically isolated from the supply voltage and other high-voltage terminals. MG.29.A3.02 - VLT ® is a registered Danfoss trademark 79