NORD TI 275281106 User Manual

IO-Extension

SK TU4-IOE

1.0

Erstausgabe / first issue

4912

Rck

TI 275281106

GB

version

reason for change(s)

issue

name

document

speech

SK TU4-IOE

Part Number 275 281 106

IO Extension

NOTICE

Validity of this document

This document is only valid in conjunction with the operating manual supplied for the respective frequency
inverter. It is essential that all the relevant information is available for the safe commissioning of this module and
the frequency inverter.

1 x

Module

SK TU4-IOE

Required accessories

1 x

Bus connection unit
including:

SK TI4-TU-BUS
Part No. 275 280 000)

1 x

System bus cable kit

grey / black

1 x

24 VDC cable kit

brown / blue

1 x

Gasket

2 x

Grommet

22 mm x 9.5 mm

4 x

Hexagon socket

M4 x 20

Temperature range

-25 °C … 50 °C

Vibration resistance

3M7

Temperature class

Class 3K3

Firmware version

V1.2 R0

Protection class

IP55

Dimensions [mm]*

HxWxD 95 x 136 x 91

* Module mounted on the BUS connection unit

Name

Terminal

Data

Module power supply (load capacity)

15/11

24 VDC ± 20 %, reverse polarity protected
(≤ 3 A)

Power consumption of module

15/11

140 mA

Digital input - operating range

19,20,25,26

Low: 0 V … 5 V, High: 15 V … 30 V

Digital input - specific information

19,20,25,26

Ri = 8,1 kΩ, input capacitance: 10nF
Scan rate 1 ms, reaction time 1 ms

Digital output - 24 VDC power supply

35/31

≤ 1000 mA (input)

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Technical Information / Datasheet

Scope of supply

Field of use

External IO extension for mounting on, or in the immediate vicinity of a decentralised frequency
inverter (SK 2xxE). This can be connected to the inverter via the system bus. Four digital inputs, 2
digital outputs, 2 analog inputs and 1 analog output are available.

Technical Data

IO-Extension – SK TU4-IOE

Digital output - operating range

33.34

Low = 0 V, High = 24 V; max. 500 mA

Analog input - reference voltage

1

10 VDC ±0,1 V, ≤ 20 mA (output)

Analog input - differential input version

3/5; 4/6

Resolution: 12 Bit, accuracy: 0.1 V

Analog output - load capacity

9

≤ 10 mA (Mode: 0/2 … 10 V)
≤ 20 mA (Mode: 0/4 … 20 mA, at 5 V)

Analog output - specific information

9

Resolution: 10 Bit, accuracy: 0.25 V

Installation location

on the left or right on the connection unit of the frequency inverter,
alternatively: near to the inverter by means of the SK TIE4-WMK-TU wall-mounting

kit

Fastening

With screw fasteners

NOTICE

Sealing

When installing (module, cable glands, plug connectors), take care that there is a good seal, in order to prevent
the entry of moisture and the danger of corrosion and short circuits. With IP66 modules (SK TI4-TU-...-C) the
membrane valve (supplied) must be screwed in, in order to prevent the accumulation of condensation.

1.

Switch off the mains.

2.

Remove the two M25 caps on the required side of the frequency
inverter (right / left).

3.

Remove the printed circuit board (with terminal bar) from the
SK TI4-TU-…. connection unit.

4.

Install the SK TI4-TU- ... with the enclosed seal on the SK 2xxE
using the 4 enclosed bolts.

5.

Insert both of the enclosed grommets in the M25 cable glands (to
protect the internal wiring between the module and the frequency
inverter).

6.

Replace the printed circuit board (See point 3) and carry out the
electrical connections.

SK TI4-TU-…-C version devices: remove the top M20 cable gland
(however not at the diagnostic inlet) and insert the enclosed
membrane valve into this screw fitting.

7.

Fit and screw on the SK TU4 module.

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Installation

Installation steps for motor installation

2 TI 275281106 - 4912

IO-Extension – SK TU4-IOE

1.

Switch off the mains.

2.

Attach the enclosed seal to the SK TI4-TU ... and place it on the
wall-mounting kit. Tightly screw the 2 oval-head screws (enclosed
with the wall-mounting kit) into the (countersunk) holes in the wall­mounting kit from the outside.

3.

Insert and tighten the 2 bolts (enclosed with the wall-mounting kit)
from the inside into the freely accessible holes in the rear wall.

4.

Install the unit at the installation site and make the electrical
connections (maximum cable length 20m)

5.

Fit and screw on the SK TU4 module.

Information

Contacts

The connection between the module and the connection unit is made by means of a pin connector. Terminals in
the terminal bar of the connection unit with an identical potential are connected by fitting the module and
connection unit together.

1.

No function, M20 x 1.5

2.

Diagnostic access, RJ12 socket

3.

M20 x 1.5 cable gland (1 on the left and 1 on the right):
incoming or outgoing cable, e.g. for system bus or 24V supply

4.

M25 x 1.5 cable gland (2x):
For wiring between the optional module and the frequency inverter

in case of direct attachment.

5.

M16x1.5 cable gland (4x):
For wiring of sensors, actuators, etc. Direct mounting.

Installation steps for wall-mounting

Details of BUS connection unit

TI 275281106 - 4912 3

IO-Extension – SK TU4-IOE

Information

M12 round plug connectors

NORD supplies pre-assembled M12 flanged plug connectors for the production of detachable connections.

System

M12 connection extension

Article number

Profibus DP

SK TIE4-M12-PBR

275274500

CANopen

SK TIE4-M12-CAO

275274501

AS Interface

SK TIE4-M12-ASI

275274502

Analog initiators / actuators

SK TIE4-M12-INI

275274503

NORD system bus (outgoing)

SK TIE4-M12-SYSM

275274505

NORD system bus (incoming)

SK TIE4-M12-SYSS

275274506

24 V supply

SK TIE4-M12-POW

275274507

Analog initiators / actuators

SK TIE4-M12-ANA

275274508

Safe input (incoming)

SK TIE4-M12-SH

275274509

HTL encoder

SK TIE4-M12-HTL

275274512

AS interface with aux. power

SK TIE4-M12-ASI-AUX

275274513

These can be screwed directly into the M16 cable glands. By means of a suitable reducer (M20 to M16) the two
(M20) cable glands on both sided can also be used.

Terminals

Double-sprung
terminal bar

2 x 18 contacts

Cable cross section

AWG 14-26

rigid: 0,14 … 2,5 mm
flexible: 0.14 … 1.5 mm with wire end sleeves

PE connection

Via housing

RJ12

RJ45 - socket

Interface for connecting a parameterisation tool

SK TU4-IOE

SK 2xxE

VI 24V

GND/0V

SYS +

SYS -

24V

GND/0V

SYS +
SYS -

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Connections

Connection of the signal and control cables is made via the connection unit SK TI4-TU-BUS.

Schematic circuit diagram of electrical connection

(Terminal designations in example: Frequency inverter SK 2xxE)

4 TI 275281106 - 4912

IO-Extension – SK TU4-IOE

Potential

Contact

Designation

Description

Analog IOs

1

VO 10V

10 V Reference voltage

2

VO 10V

10 V Reference voltage

3

AIN1+

Analog input 1, positive

4

AIN2+

Analog input 2, positive

5

AIN1-

Analog input 1, negative

6

AIN2-

Analog input 2, negative

7

AGND/0V

Analog Ground (internally connected to terminal 40)*

8

AGND/0V

Analog Ground (internally connected to terminal 40)*

9

AOUT

Analog Out

10

PE

PE

System bus level and digital inputs

11

VI 24V

Supply voltage (+24 V - in)

12

VI 24V

Supply voltage (+24 V - in)

13

VI 24V

Supply voltage (+24 V - in)

14

SYS +

System bus data cable +

15

GND/0V

Reference potential (0 V / GND)

16

SYS -

System bus data cable -

17

GND/0V

Reference potential (0 V / GND)

18

GND/0V

Reference potential (0 V / GND)

19

DIN1

Digital input 1

20

DIN3

Digital input 3

21

GND/0V

Reference potential (0 V / GND)

22

GND/0V

Reference potential (0 V / GND)

23

VI 24V

Supply voltage (+24 V - in)

24

VI 24V

Supply voltage (+24 V - in)

25

DIN2

Digital input 2

26

DIN4

Digital input 4

27

GND/0V

Reference potential (0 V / GND)

28

GND/0V

Reference potential (0 V / GND)

29

VI 24V

Supply voltage (+24 V - in)

30

VI 24V

Supply voltage (+24 V - in)

Digital outputs

31

VI 24V2

Supply voltage (+24 V - in) for digital outputs

32

GND2/0V2

Reference potential (0 V / GND) of digital outputs

33

DOUT1

Digital output 1

34

DOUT2

Digital output 2

35

GND2/0V2

Reference potential (0 V / GND) of digital outputs

36

GND2/0V2

Reference potential (0 V / GND) of digital outputs

Diagnostic socket

RJ12 - 1

RS485_A

Data cable RS485

RJ12 - 2

RS485_B

Data cable RS485

RJ12 - 3

GND

Reference potential (GND)

RJ12 - 4

RS232_TxD

Data cable RS232

RJ12 - 5

RS232_RxD

Data cable RS232

RJ12 - 6

24 V

Supply voltage (+24 V)

* AGND/0V is internally connected to the reference voltage of the module GND/0V via a special
component. In order to prevent damage to the module or faults in the analog signals, the two
contacts must not be bridged

Potential level

1 =
2 =
3 =
4 =

Analog IOs
System bus + DIN
DOUT
Diagnosis

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Connection examples

The following connection examples are generally applicable for NORD IO modules. The number or
type of the available IOs and their configuration on the terminal rail varies according to the module.
The actual availability or the designation of the individual contacts should be obtained by reference to
the description of the connections. The technical data (e.g. load capacity) must be taken into account.

TI 275281106 - 4912 5

IO-Extension – SK TU4-IOE

Control
voltage
source

Digital input

Digital output

External
supply

GND/0V

VI 24V

DIN

DIN

GND2/0V2

DOUT

VI 24V2

GND2/0V2

VI 24V

DOUT

VI 24V2

GND/0V

Internal supply

GND/0V

VO 24V

DIN

DIN

GND2/0V2

VO 24V

DOUT

VI 24V2

GND/0V

Signal type*

Analog / Differential input

Analog output

0/2 … 10 V
0/4 … 20 mA

-10 … 10 V**

VO 10V

AGND/0V

AIN -

AIN +

AGND/0V

AOUT

Potentiometer
(10 kΩ)

 0 … 10 V

VO 10V

AGND/0V

AIN ­AIN +

R=10kΩ

* The relevant IOs must be configured via DIP switches according to the form of the signal
** Analog input only

Note

Broadcast mode

In "Broadcast mode, which is activated via the parameter (P162), the module can access up to 4 inverters in
parallel. Therefore the frequency inverters jointly access the I/Os and evaluate the input signals according to their
own parameterisation. Output signals from the frequency inverters which are sent to the common IO module are
linked by a logical "OR" within the module. i.e. a digital output is set as soon as one of the four frequency inverters
addresses it. In addition, the highest analog value is provided via the analog output of the IO extension.

Digital signals

Analog signals

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Configuration

Configuration of the module is mainly performed via the DIP switches. The DIP switches are read after
a "power on" of the module. A change to the DIP switch during operation has no effect.

The system bus must be terminated at both of its physical ends (if necessary set the "System bus
termination resistor" DIP switch).

6 TI 275281106 - 4912

DIP switches

Function

DIP-Switch

Meaning

DIP-Switch

Combinations

Assignment

Signal

(DIP-No.)

BIT2

BIT1

BIT0

System bus

termination

resistor

S-Bus Term.
(01)

0 1 not set

setting

Addressing
system bus

S-Bus Adr. Bit 0
(02)

0
0

1
1

0
1

0
1

Adr. 20 (for FI 0 Adr. 32)*
Adr. 21 (for FI 1 Adr. 34)*
Adr. 22 (for FI 2 Adr. 36)*
Adr. 23 (for FI 3 Adr. 38)*

S-Bus Adr. Bit 1
(03)

Analog input

AIN1

Ain1 Mode Bit 0
(04)

0
0
0
1
1

0
0
1
0
0

0
1
0
0
1

0 … 10 V
2 … 10 V

-10 … 10 V
0 … 20 mA
4 … 20 mA

Ain1 Mode Bit 1
(05)

Ain1 Mode Bit 2
(06)

Analog input

AIN2

Ain2 Mode Bit 0
(07)

0
0
0
1
1

0
0
1
0
0

0
1
0
0
1

0 … 10 V
2 … 10 V

-10 … 10 V
0 … 20 mA
4 … 20 mA

Ain2 Mode Bit 1
(08)

Ain2 Mode Bit 2
(09)

Analog output

AOUT

Aout Mode Bit 0
(10)

0
0
1
1

0
1
0
1

0 … 10 V
2 … 10 V
0 … 20 mA
4 … 20 mA

Aout Mode Bit 1
(11)

Mode

Second - IOE

2nd IOE Mode
(12)

0 1 First SK-…-IOE on FI

Second SK-…-IOE on FI

* With DIP12 = ON: Address 10 … 13 instead of 20 … 23

DS

(Device State)

DE

(Device Error)

Meaning

Long flashing = 0.5 s on / 1 s off
Short flashing = 0.25 s on / 1 s off

OFF

OFF

Technology unit not ready, no control voltage

ON

OFF

Technology unit ready, no error, at least one frequency inverter is communicating via the system bus

ON

Short flashing

Technology unit ready, however

• One or more of the connected frequency inverters is in fault status

Long flashing

OFF

Technology unit ready and at least one further participant is connected to the system bus, but

• No frequency inverter on the system bus (or connection interrupted)

• Address error for one or more system bus participants

Long flashing

Short flashing

Flash interval

1 x - 1s pause

System bus is in status "Bus Warning"

• Communication on system bus interrupted or

• No other participant present on the system bus

Long flashing

Short flashing

Flash interval

2 x - 1s pause

• System bus is in status "Bus off" or

• The system bus 24V power supply was interrupted during operation

Long flashing

Short flashing

Flash interval

3 x - 1s pause

• No system bus 24V power supply (system bus is in status "Bus off")

Long flashing

Short flashing

Flash interval

4 x - 1s pause

Module error

• EEPROM error

Long flashing

Short flashing

Flash interval

5 x - 1s pause

Module error

• AOUT error (analog output)

• DIP switch configuration error

OFF

Short flashing

Flash interval

1…7 - 1s pause

System error, internal program sequence interrupted

• EMC interference (observe wiring guidelines!)

• Module faulty

IO channel

Display

Meaning

IO channel

Display

Meaning

DI 1

ON

High potential DIN1

DO 1

ON

High potential DOUT1

DI 2

ON

High potential DIN2

DO 2

ON

High potential DOUT2

DI 3

ON

High potential DIN3

DI 4

ON

High potential DIN4

DI 3/4, DO 1/2

Available according to the type of IO
module

IO-Extension – SK TU4-IOE

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LED Displays

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TI 275281106 - 4912 7

IO-Extension – SK TU4-IOE

Error

Meaning

Comments

1000

EEPROM error

EMC fault, module defective

1030

System bus OFF

No 24 V supply to bus, connections not correct

2000

DIP switch changed

DIP switch configuration changed during operation

2001

DIP switch configuration incorrect

Invalid DIP switch settings

2010

Error at analog output

Overload, reference voltage, short-circuit, calibration error

2020

Inverter does not support the module

Incorrect inverter type connected

Parameter

Meaning

Comments

(P514)

Bus speed

5 (= 250 kBaud)

(P515 [-01])

Bus address

FI 1 = 32

FI 2 = 34

FI 3 = 36

FI 4 = 38

(P480 [-01 …-08])

DIN function of the device

Possible settings according to (P420)

(P481 [-05 …-08])

DOUT function of the device

Possible settings according to (P434)

(P400 [-03 …-06])

AIN function of the device

Possible settings according to (P400)

(P418 [-02 …-03])

AUT function of the device

Possible settings according to (P418

Parameter

Meaning

Comments

(P150)

Set relays

Set DOUT directly or control via BUS

(P152)

Factory setting

Reset the module parameters, calibrate AOUT

(P153 [-01 …-02])

Minimum system bus cycle

Reduction of bus load due to the module

(P160)

Set analog output

Set AOUT directly or control via BUS

(P161 [-01 …-09])

Filter time

Debounce or round input signals

(P162)

Send broadcast

Activate Broadcast mode (control of several
inverters by this module)

(P163)

Invert analog output

Invert analog signal

(P170 [-01 … 02])

Present errors

Display of module errors

(P171 [-01 … 03])

Software version

Firmware version / Revision

(P172)

Configuration

Module type

(P173)

Module status

Status of system bus or connected FI

(P174)

Status of digital inputs

Display of DIN switching status

(P175)

Relay status

Display of DOUT switching status

(P176 [-01 … 03])

Actual voltage

Voltage level of analog signals

Document

Name

Document

Meaning

NORD CON

Parameterisation and diagnostic software

BU 0200

SK 2xxE frequency inverter manual

BU 0000

Description of NORD CON software

BU 0500

SK 5xxE frequency inverter manual

BU 0040

ParameterBox manual

Error messages

Error messages for the module - the present or archived messages for the last error - can be read out
via the module parameter (P170) (see Parameterisation).

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Parameterisation

Inverter: In order to establish communication between the inverter and the IOE module, the following
inverter parameters must be changed.

IO extension: The module provides a selection of parameters for setting or displaying special
operating values. The parameters can be changed with the aid of the NORDCON software or with a
ParameterBox. Communication is only possible via an SK 54xE or SK 2xxE which is connected to the
module.

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Further documentation and software (www.nord.com)

=== Ende der Liste für Textmarke Inhalt ===

8 TI 275281106 - 4912