Preface .........................................................................................................................................................3

Fundamental safety instructions...................................................................................................................9

1.1

General safety instructions.......................................................................................................9

1.2

Equipment damage due to electric fields or electrostatic discharge ......................................12

1.3

Warranty and liability for application examples ......................................................................13

1.4

Security information ...............................................................................................................13

1.5

Residual risks of power drive systems ...................................................................................15

System overview ........................................................................................................................................17

2.1

Application..............................................................................................................................17

2.2

System configuration..............................................................................................................18

2.3

Variants ..................................................................................................................................20

2.4

Ordering data .........................................................................................................................21

Description..................................................................................................................................................23

3.1

Characteristics .......................................................................................................................23

3.2

Illustration...............................................................................................................................24

3.3

Type plates.............................................................................................................................25

3.4

Operator control and display elements ..................................................................................27

3.4.1

Overview of operating and display elements .........................................................................27

3.4.2

LED displays ..........................................................................................................................29

3.4.3

7-segment display ..................................................................................................................31

3.4.4

Start-up and mode selector switch.........................................................................................33

3.4.5

RESET button ........................................................................................................................34

3.5

Dual fan module .....................................................................................................................34

Application planning ...................................................................................................................................37

4.1

Supplementary electrical conditions.......................................................................................37

4.1.1

Grounding concept.................................................................................................................37

4.1.2

RI suppression measures ......................................................................................................38

4.1.3

EMC limit values in South Korea............................................................................................39

4.1.4

EMF assessments for 24 V components ...............................................................................39

4.2

Climatic and mechanical environmental conditions ...............................................................39

4.2.1

Shipping and storage conditions ............................................................................................39

4.2.2

Operating conditions ..............................................................................................................40

Dimension drawings ...................................................................................................................................43

5.1

NCU 1760 dimension drawing ...............................................................................................43

NCU 1760

Equipment Manual, 02/2020, A5E45627861B AB