NORD TI 275271015 User Manual

combination with the operating instructions for the relevant frequency inverter. All

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SK CU4-PNT

Technical Information / Datasheet

Part number: 275 271 015

PROFINET IO® - Internal Bus – Interface

NOTICE

This document is only valid in
of the information that is relevant for a safe start-up of this module and the frequency inverter is only available
under these conditions.

Validity of this document

Scope of delivery

1 x Module SK CU4-PNT
1 x System bus cable set grey / black
1 x 24 VDC cable set brown / blue
2 x Connecting screws M4 x 20, cross-head

Field of use

Internal interface f or the connection of a decentralise d frequency i nverter (SK 180E … SK 2xxE) to a
PROFINET IO field bus . This is connec ted to the inverter v ia the system bus a nd can directly acc ess
up to 4 frequency inverters. 2 digital inputs are available.

Technical data

Module

Temperature range -25°C … xx °C * Vibration resistance 3M7
Temperature class Class 3K3 Firmware version V1.2 R0
Protection class IP20 Hardware version AA
Supply voltage 24 V ± 20 %, ≈ 100 mA

Reverse polarity protected

* The upper temperature limit depends on the frequency inverter and the operating mode à see "Derating"

Digital input - working range Low: 0 V … 5 V, High: 15 V … 30 V
Digital input - specif ic dat a Ri = 10 kΩ, input capacity: 10 nF, response time 3 ms,

inputs as per EN 61131-2 type 1

PROFINET IO Bus module SK CU4-PNT

1.0 Erstausgabe / first issue 4913 Rck TI 275271015 GB

version reason for change(s) issue name document speech

PROFINET IO Bus module – SK CU4-PNT

Depending on the installation location of the module (SK 180E, SK 190E or SK 2xxE), the operating mode (S1,
motor used (IE1 / IE2 / ...) restrictions to the permissible ambient temperature must be taken into account. If the

S3 ED 50 %, 10min

Motor

40°C

n. s.

S3 ED 60 %, 10min

Motor

n. s.

40°C

S1

Wall (ve ntilated)

47°C

45°C

Bus specification

PROFINET IO Max. 100 MBaud Cable Min. Ethernet CAT-5
Electrical isolation 500 V

Max. cable length 100 m between two

eff

modules
Bus connection Screw terminals Shield Direct to PE
bus termination performed automat ica lly PE connection via PE screw connection
Status display 6 LEDs in the terminal box
Topology Star, tree, ring, linear bus

Performance

Update interval for process data between module and frequency inverter ≈ 5 ms
Parameter read access on the frequency inverter ≈ 25 ms
Parameter write access with storage in EEPROM ≈ 70 ms
Cycle times ≥ 1 ms

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Derating

NOTICE

Derating

S3 ...) and the installation type (wall-mounting, motor -mounting) of the frequency inverter as well as the type of
permissible ambient temperature is exceeded, the module may heat up to an impermissible extent and switch off

with an error message (E104.0).

Maximum ambient temperature *

Operating mode Installation type SK 180E / SK 190E SK 2xxE

S1 Motor 25°C 27°C

S1 Wall (unventilated) 37°C 39°C

* The limits of the frequency inverter must not be exceeded (refer to the frequency inverter manual).

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PROFINET IO Bus module – SK CU4-PNT

Isochronous real time communication of synchronised

Transmission and receiver cables are automatically

diagnosis socket on the device (if available) and possibly

Module features

Communication RT (Real Time)

à Real time communication of process data

IRT (Isochronous Real Time)

à
process data

Addressing Automatic address assignment via IO controller using DCP

(Discovery Configuration Protocol)
Data transfer via Switched Ethernet
Autonegotiation Negotiation of transfer parameters
Autocrossover

crossed in the switch as necessary
Conformity classes CC-B, and CC-C
Access for NORD diagnosis tool via

via frequency inverter and

Ethernet protocols UDP or TCP/IP

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Installation

Installation location Within the connection unit of a frequency inverter (SK 180E, SK 190E, 2xx E)
Mounting with screw fastenings

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