Danfoss 102 Provozní pokyny stáhnout pdf (Strana 18)

3. Ground the cable in accordance with grounding

instructions provided in 4.3 Grounding.

4. When supplied from an isolated mains source (IT

mains or floating delta) or TT/TN-S mains with a

grounded leg (grounded delta), ensure that

14-50 RFI Filter is set to OFF to avoid damage to

the intermediate circuit and to reduce earth

capacity currents in accordance with IEC 61800-3.

L 1

L 2

L 3

130BT336.10

Illustration 4.9 Connecting to AC Mains

4.8 Control Wiring

•

Isolate control wiring from high power

components in the frequency converter.

•

When the frequency converter is connected to a

thermistor, ensure that the thermistor control

wiring is screened and reinforced/double

insulated. A 24 V DC supply voltage is

recommended.

4.8.1

Control Terminal Types

Illustration 4.10 shows the removable frequency converter

connectors. Terminal functions and default settings are

summarised in Table 4.3.

130BB921.11

Illustration 4.10 Control Terminal Locations

12 13 18 19 27 29 32 33 20 37

39 42 50 53 54 55

61 68 69

130BB931.10

2 3

Illustration 4.11 Terminal Numbers

•

Connector 1 provides four programmable digital

inputs terminals, two additional digital terminals

programmable as either input or output, a 24 V

DC terminal supply voltage, and a common for

optional customer supplied 24 V DC voltage.

•

Connector 2 terminals (+)68 and (-)69 are for an

RS-485 serial communications connection

•

Connector 3 provides two analog inputs, one

analog output, 10 V DC supply voltage, and

commons for the inputs and output

•

Connector 4 is a USB port available for use with

the MCT 10 Set-up Software

Electrical Installation

VLT

HVAC Drive Operating Instructions

16 MG11AJ02 - Rev. 2013-07-31

1 2 ... 13 14 15 16 17 18 19 20 21 22 23 ... 73 74

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