Danfoss VLT 8000 AQUA Guide d'installation télécharger pdf (Page 27)

VLT® 8000 AQUA

Installation

■ Control card

All terminals for the control cables are located

under the protective cover of the AFD.

The protective cover (see drawing below) can be

removed by means of a pointed object (except

IP54/NEMA 12 units) - a screwdriver or similar.

■ Electrical installation, control cables

Torque: 0.5 Nm (5 in-lbs)

Screw size: M3.

Generally speaking, control cables must be shielded/

armored and the shield must be connected by

means of a cable clamp at both ends

to the metal

cabinet of the unit (see Earthing/Grounding of

shielded (armoured control cables).

Normally, the shield must also be connected to the

body of the controlling unit (follow the instructions for

installation given for the unit in question).

If very long control cables are used, 50/60 Hz

ground loops may occur that will disturb the

whole system. This problem can be solved by

connecting one end of the shield to ground via a

100nF capacitor (keeping leads short).

■ Electrical installation, control cables

Torque: 0.5 Nm/5 in-lbs

Screw size: M3

See Earthing/Grounding of shielded (armoured control

cables for correct termination of control cables.

No. Function

04, 05 Relay output 2 can be used for

indicating status and warnings.

12, 13 Voltage supply to digital inputs. For

the 24 V DC to be used for digital

inputs, switch 4 on the control card

must be closed, position "on".

16-33 Digital inputs. See parameters

300-307 Digital inputs.

20 Common for digital inputs.

39 Common for analog/digital outputs.

See Examples of connection.

42, 45 Analog/digital outputs for indicating

frequency, reference, current and

torque. See parameters 319-322

Analoge/digital outputs.

50 Supply voltage to potentiometer and

thermistor 10 V DC.

53, 54 Analog voltage input, 0 - 10 V DC.

55 Common for analog inputs.

60 Analog current input 0/4-20 mA. See

parameters 314-316 Terminal 60.

MG.80.A6.22 - VLT is a registered Danfoss trademark

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VLT® 8000 AQUA 1

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Danfoss VLT 8000 AQUA Guide d'installation Page 27

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