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VLT
®
6000 HVAC Series
Control card, digital inputs:
Number of programmable digital inputs ................................................................................................................ 8
Terminal nos. ............................................................................................................ 16, 17, 18, 19, 27, 29, 32, 33
Voltage level ........................................................................................................... 0-24 V DC (PNP positive logics)
Voltage level, logical
’
0
’
............................................................................................................................ < 5 V DC
Voltage level, logical
’
1
’
........................................................................................................................... >10 V DC
Maximum voltage on input ........................................................................................................................ 28 V DC
Input resistance, R
i
............................................................................................................................................ 2 k
Scanning time per input ............................................................................................................................. 3 msec.
Reliable galvanic isolation: All digital inputs are galvanically isolated from the supply voltage (PELV). In
addition, the digital inputs can be isolated from the other terminals on the control card by connecting
an external 24 V DC supply and opening switch 4. See Switches 1-4.
Control card, analogue inputs
No. of programmable analogue voltage inputs/thermistor inputs .......................................................................... 2
Terminal nos. ................................................................................................................................................ 53, 54
Voltage level .......................................................................................................................... 0 - 10 V DC (scalable)
Input resistance, R
i
............................................................................................................................. approx. 10 k
No. of programmable analogue current inputs ..................................................................................................... 1
Terminal no ground. ............................................................................................................................................ 55
Current range ...................................................................................................................... 0/4 - 20 mA (scalable)
Input resistance, R
i
........................................................................................................................................... 200
Resolution .......................................................................................................................................... 10 bit + sign
Accuracy on input .......................................................................................................... Max. error 1% of full scale
Scanning time per input ............................................................................................................................. 3 msec.
Reliable galvanic isolation: All analogue inputs are galvanically isolated from the supply
voltage (PELV) and other high-voltage terminals.
Control card, pulse input:
No. of programmable pulse inputs ........................................................................................................................ 3
Terminal nos. .......................................................................................................................................... 17, 29, 33
Max. frequency on terminal 17 ...................................................................................................................... 5 kHz
Max. frequency on terminals 29, 33 ............................................................................ 20 kHz (PNP open collector)
Max. frequency on terminals 29, 33 ........................................................................................... 65 kHz (Push-pull)
Voltage level ........................................................................................................... 0-24 V DC (PNP positive logics)
Voltage level, logical
’
0
’
............................................................................................................................ < 5 V DC
Voltage level, logical
’
1
’
........................................................................................................................... >10 V DC
Maximum voltage on input ........................................................................................................................ 28 V DC
Input resistance, R
i
............................................................................................................................................ 2 k
Scanning time per input ............................................................................................................................. 3 msec.
Resolution .......................................................................................................................................... 10 bit + sign
Accuracy (100-1 kHz), terminals 17, 29, 33 ............................................................... Max. error: 0.5% of full scale
Accuracy (1-5 kHz), terminal 17 ................................................................................. Max. error: 0.1% of full scale
Accuracy (1-65 kHz), terminals 29, 33 ....................................................................... Max. error: 0.1% of full scale
Reliable galvanic isolation: All pulse inputs are galvanically isolated from the supply voltage (PELV). In
addition, pulse inputs can be isolated from the other terminals on the control card by connecting an
external 24 V DC supply and opening switch 4. See Switches 1-4.
Control card, digital/pulse and analogue outputs:
No. of programmable digital and analogue outputs .............................................................................................. 2
Terminal nos. ................................................................................................................................................ 42, 45
Voltage level at digital/pulse output ...................................................................................................... 0 - 24 V DC
Minimum load to ground (terminal 39) at digital/pulse output ............................................................................ 600
Frequency ranges (digital output used as pulse output) ............................................................................ 0-32 kHz
MG.61.A5.02 - VLT is a registered Danfoss trademark
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