Danfoss VT2800 Series Design Manual page 147

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 (PELV) 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 positi v e 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 (PELV) and other
high-voltage terminals. See section entitled Galvanic Isolation.
Control card, digital/frequency output:
Number of programmable digital/pulse outputs ..........................................................................................
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 ..............................................................................................................
Minimum output frequency at frequency output ........................................................................................... 16 Hz
Maximum output frequency at frequency output ........................................................................................
Accuracy on frequency output ...............................................................................
Resolution on frequency output ..................................................................................................................... 10 bit
The digital output is galvanically isolated from the supply voltage (PELV) and other high-
voltage terminals. See section entitled Galvanic Isolation.
MG.28.E9.02 - VLT is a registered Danfoss trademark
®
VLT 2800 Series
Max. error: 0.2 % of full scale
1 pcs.
10 nF
10 kHz
147