Control card, digital inputs:
Number of programmable digital inputs 5
Terminal number 18, 19, 27, 29, 33
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
i
(terminals 18, 19, 27, 29)
approx. 4 kΩ
Input resistance, R
i
(terminal 33)
approx. 2 kΩ
All digital inputs are galvanically isolated from the supply voltage (PELV) and other high-voltage
terminals. See section entitled Galvanic Isolation in the Operating Instructions.
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 kΩ
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 (PELV) and other high-voltage
terminals. See section entitled Galvanic Isolation in the Operating Instructions.
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
i
approx. 2 kΩ
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 in the Operating Instructions.
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 kΩ
Max. capacity at frequency output 10 nF
Minimum output frequency at frequency output 16 Hz
Maximum output frequency at frequency output 10 kHz
1 Quick Guide VLT 2800 Quick Guide
30
MG.28.M1.02 - VLT
®
is a registered Danfoss trademark
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