Danfoss MCX User manual

www.danfoss.com/mcx

Save time and money with MCX

controllers and MMIMYK interface

To make the correct installation of your MMIMYK please follow this

programming guide

User manual

Index

1.0 Introduction 3

1.1 Purpose of the document 3

1.2 References 3

1.3 Deﬁnitions and abbreviations 3

2.0 Installation 4

2.1 Power supply 4

3.0 General considerations 5

User manual |MMIMYK installation guide

1.0 Introduction

MMIMYK is the advanced “all in one” device that performs up to three diﬀerent functions: -

Programming module - Gateway - Data logger. It has a bright graphic display and a keyboard that

enable to conﬁgure the module to run several functions. It has also a slot for MMC card (Multi Media

Card) to extend the memory capacity

This guide will help you to install the MMIMYK correctly when it is used as a gateway or datalogger.

1.1 Purpose of the

document

MMIMYK has among others the functionalities of CAN/RS485 <- -> USB gateway and Datalogger. For

some application this means that MMIMYK will have a ﬁxed installation. In order to make the correct

setup and avoid problems this document provides the installation guidelines.

1.2 References

Please see guidelines for CAN and RS485 ﬁeldbus installation

"AC-E-IT_HwNetworkSpeciﬁcation_DKRCC.PS.RI0.F1.02_520H5537" on www.danfoss.com/mcx.

1.3 Deﬁnitions and

abbreviations

EMC Electromagnetic Compatibility

EMI Electromagnetic Interference

User manual |MMIMYK installation guide

2.0 Installation

2.1 Power supply

MMIMYK can be powered through several sources.

MCX

MYK MYK

MCX

DIRECT CONNECTION TO MCX

MYK supplies power to MCX

(programming function)

NETWORK CONNECTION

MYK powered by MCX

NETWORK CONNECTION

MYK externally powered

Power supply

12 vdc or 24 vac CANbus

MYK

MCX MCX

CANbus

MYK

Power supply

12 vdc or 24 vac

Power supply

RS485

MCX MCX

Power supply

Fig 1 [Power supply]

24 Vac or 12 Vdc jack

It must be considered that this supply is not isolated with respect to CANbus or RS485. Therefore, if

the system contains other devices that have a non isolated power-supply, MMIMYK must have a

dedicated supply.

RJ11

The connection through RJ11 to an MCX supplies power to MMIMYK and provides directly the

CANbus connection.

USB

MYK can be supplied with power from the host USB port. Since current consumption can be high

make sure that the port is of “high-current” type and can supply up to 500 mA as from USB 2.0

speciﬁcation. The USB port on MMIMYK is galvanically isolated with respect to the ﬁeldbus

connections.

Mounting

MMIMYK can be conveniently mounted into a DIN-rail.

The cabinet where MMIMYK is mounted should be mainly vibration free in order to avoid problems

on the USB connector or memory card.

User manual |MMIMYK installation guide

Note

IMPORTANT NOTE

In order to guarantee a reliable USB connection to a host device (i.e. industrial PC) special attention

has to be paid:

• place a cable holder close to MMIMYK in order to keep USB connector ﬁrmly in place;

• USB cable length: <1 m;

• USB cable type: shielded, possibly with ferrite clamp;

• place MMIMYK and route USB cable far from noise sources (inverter, motors, contactors etc.);

• place ferrite clamps on RS485 and CANbus close to MMIMYK;

• For the ﬁeldbus installation refer to

"AC-E-IT_HwNetworkSpeciﬁcation_DKRCC.PS.RI0.F1.02_520H5537".

MYK

Power supply

12 vdc or 24 vac

Ferrite clamp

Cable holder

CANbus

RS485

Fig 2 [Layout]

3.0 General

considerations

Data logging

For the data logging functionality in a ﬁxed installation the 24 Vac power supply is the preferred one.

In case of powerfail MMIMYK has enough energy stored in order to save all the last acquired data to

the memory card.

USB gateway

In an electomagnetically noisy environment the reliability of the USB connection is highly dependent

on the USB host interface on the PC. Normally industrial PCs or User Interfaces have a high quality

interface that is suited for such applications. On the other hand low cost consumer products might be

subject to EMC/EMI problems and as a consequence have a non reliable USB connection.

Danf

oss can accept no responsibility for possible errors in catalogues, brochures and other printed material. Danfoss reserves the right to alter its products without notice. This also applies to products

already on order pro

vided that such alterations can be made without subsequential changes being necessary eady agreed.

All trademarks in this material are property of the respec

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