Danfoss VLT 2800 Series Operating Instructions Manual page 76

Control card, analog inputs:
Number of analog voltage inputs ................................................................................................................. 1 pcs.
Terminal number ................................................................................................................................................ 53
Voltage level .................................................................................................................... 0 - 10 V DC (scaleable)
Input resistance, R ........................................................................................................................ approx. 10 k
i
Max. voltage .................................................................................................................................................. 20 V
Number of analog current inputs ................................................................................................................. 1 pcs.
Terminal number ................................................................................................................................................ 60
Current level .................................................................................................................... 0/4 - 20 mA (scaleable)
Input resistance, R ......................................................................................................................... approx. 300
i
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 (PEL V) and other high-voltage terminals.
See section entitled Galvanic Isolation.
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' ............................................................................................................................. < 5 V DC
Voltage level, logic '1' ........................................................................................................................... > 10 V DC
Maximum voltage on input ...................................................................................................................... 28 V DC
Input resistance, R .......................................................................................................................... approx. 2 k
i
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 (PEL V) and other high-voltage ter-
minals. See section entitled Galvanic Isolation.
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
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
The digital output is galvanically isolated from the supply voltage (PEL V) and other high-voltage terminals. See
section entitled Galvanic Isolation.
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VLT 2800 Series
MG.28.A5.02 - VLT is a registered Danfoss trade mark