Axiometrix solutions Imc cronos-sl User manual

imc Test & Measurement GmbH • Voltastr. 5 • 13355 Berlin • Germany

imc CRONOS-SL/compact

Getting Started

Edition 8 - 2022-07-08

Page 2

Disclaimer of liability

The contents of this documentation have been carefully checked for consistency with the hardware and

software systems described. Nevertheless, it is impossible to completely rule out inconsistencies, so that we

decline to offer any guarantee of total conformity.

We reserve the right to make technical modifications of the systems.

This documentation is the intellectual property of imc Test & Measurement GmbH. imc Test &

Measurement GmbH reserves all rights to this documentation. The applicable provisions are stipulated in

the "imc Software License Agreement".

The software described in this document may only be used in accordance with the provisions of the "imc

Software License Agreement".

Open Source Software Licenses

Some components of imc products use software which is licensed under the GNU General Public License

(GPL). Details are available in the About dialog.

A list of the open source software licenses for the imc measurement devices is located on the

imc STUDIO/imc WAVE installation medium in the folder "Products\imc DEVICES\OSS" or "Products\imc

DEVICEcore\OSS". If you wish to receive a copy of the GPL sources used, please contact our Hotline.

Page 3

Table of Contents

1 General ...................................................................................................................... 5

1.1 imc Customer Support / Hotline .................................................................................................... 5

1.2 Notes / Quality Management ........................................................................................................ 5

1.3 Liability limitations ......................................................................................................................... 7

1.4 Guarantee ....................................................................................................................................... 8

1.5 Before starting ................................................................................................................................ 8

1.6 Notes on maintenance and servicing ............................................................................................. 9

1.7 Safety .............................................................................................................................................. 9

1.7.1 Responsibility of the user ................................................................................................................................... 9

1.7.2 Operating personnel ......................................................................................................................................... 10

1.7.3 Special dangers ................................................................................................................................................. 10

1.8 After unpacking... ......................................................................................................................... 10

1.9 Transport ...................................................................................................................................... 11

1.10 Storage ....................................................................................................................................... 11

1.11 Cleaning ...................................................................................................................................... 11

2 Start of operation CRC, CRSL .................................................................................... 12

2.1 Precautions for operation ............................................................................................................ 12

2.2 Modularity .................................................................................................................................... 13

2.3 Power supply ................................................................................................................................ 14

2.4 Grounding, shielding of the devices ............................................................................................. 14

2.4.1 Grounding with the use of the included power adaptor .................................................................................. 15

2.4.2 Grounding with power supplied by a car battery ............................................................................................. 15

2.4.3 Shielding ........................................................................................................................................................... 16

2.5 Main switch .................................................................................................................................. 16

2.6 Remote control ............................................................................................................................. 17

2.7 Potential difference with synchronized devices .......................................................................... 18

2.8 Fuses (polarity-inversion protection) ........................................................................................... 18

2.9 UPS ................................................................................................................................................ 19

2.9.1 Rechargeable accumulators and batteries ....................................................................................................... 19

2.10 Removable storage ..................................................................................................................... 22

3 Signal connection .................................................................................................... 23

4 Start of operation Software / Firmware ................................................................... 24

4.1 Installation - Software .................................................................................................................. 24

4.1.1 System requirements ........................................................................................................................................ 24

4.2 Connect the device ....................................................................................................................... 24

4.3 Connecting via LAN in three steps ............................................................................................... 25

4.4 Firmware update .......................................................................................................................... 28

5 Pin configuration ..................................................................................................... 31

5.1 Connecting DSUB-15 adaptor plug .............................................................................................. 31

5.1.1 Device models overview ................................................................................................................................... 32

5.2 DSUB-15 pin configuration ........................................................................................................... 33

5.2.1 Universal plug ................................................................................................................................................... 33

5.2.2 Standard plug ................................................................................................................................................... 33

5.2.3 Special plug ....................................................................................................................................................... 34

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Table of Contents

5.2.4 TEDS plug .......................................................................................................................................................... 36

5.3 DSUB-26 pin configuration (high density) .................................................................................... 37

5.4 DSUB configuration of scanner SC2-32 ........................................................................................ 37

5.4.1 Variety 8 x DSUB 15 .......................................................................................................................................... 37

5.4.2 Variety 2 x DSUB 37 .......................................................................................................................................... 38

5.5 LEMO pin configuration ............................................................................................................... 39

5.5.1 LEMO.1B (7-pin) ............................................................................................................................................... 39

5.6 DSUB-9 pin configuration ............................................................................................................. 40

5.6.1 Display .............................................................................................................................................................. 40

5.6.2 GPS ................................................................................................................................................................... 40

5.7 APPMOD ....................................................................................................................................... 40

5.8 Pin configuration of the fieldbusses ............................................................................................ 41

5.8.1 CAN-Bus, CAN FD (DSUB-9) ............................................................................................................................... 41

5.8.2 LIN-Bus (DSUB-9) .............................................................................................................................................. 41

5.8.3 FlexRay-Bus (DSUB-9) ...................................................................................................................................... 41

5.8.4 XCPoE (RJ45) ..................................................................................................................................................... 42

5.8.5 ARINC-Bus (DSUB-15) ....................................................................................................................................... 42

5.8.6 PROFIBUS (DSUB-9) .......................................................................................................................................... 43

5.8.7 PROFINET (RJ45) ............................................................................................................................................... 43

5.8.8 MVB-Bus (DSUB-9) ........................................................................................................................................... 44

5.9 Pin configuration of the REMOTE socket ..................................................................................... 45

6 Symbols and legend ................................................................................................. 46

Index .......................................................................................................................... 47

Page 5

imc Customer Support / Hotline Chapter 1

1 General

1.1 imc Customer Support / Hotline

If you have problems or questions, please contact our Customer Support/Hotline:

imc Test & Measurement GmbH

Hotline

(Germany):

+49 30 467090-26

E-Mail:

[email protected]

Internet:

https://www.imc-tm.com

International partners

For our international partners see https://www.imc-tm.com/distributors/.

Tip for ensuring quick processing of your questions:

If you contact us you would help us, if you know the serial number of your devices and the version info of the

software. This documentation should also be on hand.

The device's serial number appears on the nameplate.

The program version designation is available in the About-Dialog.

1.2 Notes / Quality Management

Quality Management

imc Test & Measurement GmbH holds DIN-EN-ISO-9001 certification

since May 1995. You can download the CE Certification, current

certificates and information about the imc quality system on our website:

https://www.imc-tm.com/quality-assurance/.

imc Warranty

Subject to the general terms and conditions of imc Test & Measurement GmbH.

ElektroG, RoHS 2, WEEE, CE

The imc Test & Measurement GmbH is registered with the authority as follows:

WEEE Reg. No. DE 43368136

valid from 24.11.2005

Reference

https://www.imc-tm.com/elekrog-rohs-weee/ and https://www.imc-tm.com/ce-conformity/

Page 6

Notes / Quality Management Chapter 1

Remarks Concerning EMC

imc CRONOS-SL/compact satisfies the EMC requirements for the use in industrial environments.

Any additional devices connected to imc CRONOS-SL/compact must satisfy the EMC requirements as specified by

the responsible authority (within Europe1) in Germany the BNetzA - "Bundesnetzagentur" (formerly BMPT-Vfg.

No. 1046/84 or No. 243/91) or EC Guidelines 2014/30/EU. All products which satisfy these requirements must

be appropriately marked by the manufacturer or display the CE certification marking.

Products not satisfying these requirements may only be used with special approval of the regulating body in the

country where operated.

All signal lines connected to imc CRONOS-SL/compact must be shielded and the shielding must be grounded.

Note

The EMC tests were carried out using shielded and grounded input and output cables with the exception of the

power cord. Observe this condition when designing your experiment to ensure high interference immunity and

low jamming.

1If you are located outside Europe, please refer the appropriate EMC standards used in the country of operation.

FCC-Note

This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part

15 of the FCC Rules 2. These limits are designed to provide reasonable protection against harmful interference in

a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not

installed and used in accordance with the instructions, may cause harmful interference to radio communications.

However, there is no guarantee that interference will not occur in a particular installation. If this equipment does

cause harmful interference to radio or television reception, which can be determined by turning the equipment

on and off, the user is encouraged to try to correct the interference by one or more of the following measures:

Reorient or relocate the receiving antenna.

Increase the separation between the equipment and the receiver.

Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.

Consult our imc hotline or an experienced radio or television technician for help.

Modifications

The FCC requires the user to be notified that any changes or modifications made to this device that are not

expressly approved by imc may void the user's authority to operate this equipment.

2FCC - United States Federal Communications Commission

Cables

Connections to this device must be made with shielded cables with metallic RFI/EMI connector hoods to

maintain compliance with FCC Rules and Regulations.

Unless otherwise marked, all connecting cables are not to be designed as long cables in the sense of IEC 61326-1

(< 30 m). LAN cables (RJ 45) and CAN bus cables (DSUB-9) are excluded.

Only cables with suitable properties for the task (e.g. isolation for protection against electric shock) may be used.

Page 7

Notes / Quality Management Chapter 1

Industrial Safety

We certify that imc CRONOS-SL/compact in all product configuration options corresponding to this

documentation conforms to the directives in the accident prevention regulations in "Electric Installations and

Industrial Equipment" (DGUV Regulation 3)3. This confirmation applies exclusively to the imc CRONOS-

SL/compact, but not to all other components of the scope of delivery.

This certification has the sole purpose to indemnify imc from the obligation to have the electrical equipment

tested prior to first use (§ 5 Sec. 1, 4 of DGUV Regulation 3). The responsibility of the company within the

meaning of DGUV regulation 3 remains unaffected by this. This does not affect guarantee and liability

regulations of the civil code.

3Formerly BGV-A3

Observe Notes and Warnings

The measurement system has been carefully designed, assembled and routinely tested in accordance with the

safety regulations specified in the included certificate of conformity and has left imc in perfect operating

condition. To maintain this condition and to ensure continued danger-free operation, the user should pay

particular attention to the remarks and warnings made in this chapter. In this way, you protect yourself and

prevent the device from being damaged.

Read this manual before turning the device on for the first time.

Warning

Before touching the device sockets and the lines connected to them, make sure static electricity is drained.

Damage arising from electrostatic discharge is not covered by the warrantee.

Ambient temperature

The limits of the ambient temperature cannot be strictly specified because they depend on many factors of the

specific application and environment, such as air flow/convection, heat radiation balance in the environment,

contamination of the housing / contact with media, mounting structure, system configuration/single or block

(click), connected cables, operating mode, etc. This is taken into account by specifying the operating

temperature instead. Furthermore, it is not possible to predict any sharp limits for electronic components.

Basically, reliability decreases when operating under extreme conditions (forced ageing). The operating

temperature data represent the extreme limits at which the function of all components can still be guaranteed.

1.3 Liability limitations

All specifications and notes in the operating instruction manual are subject to applicable standards and

regulations, and reflect the state of the art well as accumulated years of knowledge and experience.

The manufacturer declines any liability for damage arising from:

failure to comply with the manual and the "Getting Started" documents provided,

inappropriate use of the equipment,

additionally, the general terms and conditions of the company imc Test & Measurement GmbH apply.

Please note that all properties described refer to a closed measurement system and not to its individual slices. A

liability claim requires particularly careful handling of the unprotected individual slices (e.g. CRXT slices).

Page 8

Guarantee Chapter 1

1.4 Guarantee

Each device is subjected to a 24-hour "burn-in" before leaving imc. This procedure is capable of detecting almost

all cases of early failure. This does not, however, guarantee that a component will not fail after longer operation.

Therefore, all imc devices are granted liability for a period of two years. The condition for this guarantee is that

no alterations or modifications have been made to the device by the customer.

Unauthorized intervention in the device renders the guarantee null and void.

1.5 Before starting

Condensation may form on the circuit boards when the device is moved from a cold environment to a warm

one. In these situations, always wait until the device warms up to room temperature and is completely dry

before turning it on. The acclimatization period should take about 2 hours. This is especially recommended for

devices without ET (extended environmental temperature range).

We recommend a warm-up phase of at least 30 min prior to measure.

Page 9

Before starting Chapter 1

1.6 Notes on maintenance and servicing

No particular maintenance is necessary.

Note

The specified maximum errors are valid for 1 year following delivery of the device under normal operating

conditions (observe operating temperature).

There are a number of important device characteristics which should be subjected to precise checking at regular

intervals. We recommend annual calibration. Our calibration procedure includes calibration of inputs (checking

of actual values of parameters; deviations beyond tolerance levels will be reported), a complete system-

checkup, newly performed adjustments and subsequent calibration (the complete protocol set with

measurement values is available at an extra charge). Consult our Hotline for the price for system calibration

according to DIN EN ISO 9001.

For devices with UPS functions, we recommend maintenance every 2-3 years. Please read the notes in the

chapter . When returning the device in connection with complaints, please include a written, outlining

description of the problem, including the name and telephone number of the sender. This will help expedite the

process of problem elimination.

For questions by telephone please be prepared to provide your device's serial number and have your imc

installation software, as well as this manual at hand, thanks! The serial number, necessary power supply,

interface type and software version included can be determined from the plaque on the side of the device.

1.7 Safety

This section provides an overview of all important aspects of protection of the users for reliable and trouble-free

operation. Failure to comply with the instructions and protection notes provided here can result in serious

danger.

1.7.1 Responsibility of the user

The device is for use in commercial applications. The user is therefore obligated to comply with legal regulations

for work safety.

Along with the work safety procedures described in this instruction manual, the user must also conform to

regulations for safety, accident prevention and environmental protection which apply to the work site. If the

device is not used in a manner specified by the manufacturer, the protection supported by the device may be

impaired.

The user must also ensure that any personnel assisting in the use of the device have also read and understood

the instruction manual.

Page 10

Safety Chapter 1

1.7.2 Operating personnel

Warning

Danger of injury due to inadequate qualifications!

Improper handling may lead to serious damage to personnel and property. When in doubt, consult qualified

personnel.

Work which may only be performed by trained imc personnel may not be performed by the user. Any

exceptions are subject to prior consultation with the manufacturer and are conditional on having obtained

corresponding training.

The manual distinguishes the following degrees of qualification for performing various actions:

Users of the measurement equipment. Fundamentals of measurement engineering. Recommended:

knowledge of foundations of electrical engineering. Familiarity with the Microsoft Windows operating

system. Users may not open or modify the device.

Qualified personnel is able, due to training in the field and to possession of skills, experience and familiarity

with the relevant regulations, to perform work assigned while independently recognizing any hazards.

1.7.3 Special dangers

This segment states what residual dangers have been identified by the hazard analysis. Observe the safety notes

listed here and the warnings appearing in subsequent chapters of this manual in order to reduce health risks and

to avoid dangerous situations.

Danger

Lethal danger from electric current!

Contact with conducting parts is associated with immediate lethal danger. Damage to the

insulation or to individual components can be lethally dangerous.

Therefore:

In case of damage to the insulation, immediately cut off the power supply and have repair

performed.

Work on the electrical equipment must be performed exclusively by expert electricians.

During all work performed on the electrical equipment, it must be deactivated and tested

for static potential.

Injuries from hot surfaces!

Devices from imc are designed so that their surface temperatures do not exceed limits

stipulated in EN 61010-1 under normal conditions.

Therefore:

Surfaces whose temperature can exceed the limits under circumstances are denoted by

the symbol shown at left.

1.8 After unpacking...

Check the delivered system immediately upon receiving it for completeness and for possible transport damage.

In case of damage visible from outside, proceed as follows:

Do not accept the delivery or only accept it with reservations

Note the extent of the damage on the packing documents or on the delivery service's packing list.

Page 11

After unpacking... Chapter 1

Begin the claims process.

Please check the device for mechanical damage and/ or loose parts after unpacking it. The supplier must be

notified immediately of any transportation damage! Do not operate a damaged device!

Check that the list of accessories is complete (product package):

AC/DC-power adaptor (not for racks) with cable and pre-assembled

LEMO plug for DC-powering

Getting started with your imc measurement device (printed)

Note

File a claim about every fault as soon as it is detected. Claims for damages can only be honored within the

stated claims period.

1.9 Transport

CRC or CRXT slices should be transported as a closed device. When transporting, always

use the original packaging or a appropriate packaging which protects the device against

knocks and impacts. If transport damages occur, please be sure to contact the imc

Customer Support. Damage arising from transporting is not covered in the

manufacturer's guarantee. Possible damage due to condensation can be limited by

wrapping the device in plastic sheeting. The represented handling label for lithium ion

batteries can be attached also independently printed on the package (e.g. by gluing on

the package or in a transparent unlabeled document bag). Note however that the form

and the format are accurately given by IATA and the expression has to take place in

color. Format: 120 x 110 mm.

1.10 Storage

As a rule, the measurement device can be stored at temperatures ranging from -40°C to +85°C.

1.11 Cleaning

Always unplug the power supply before cleaning the device. Only qualified service technicians are

permitted to clean the housing interior.

Do not use abrasive materials or solutions which are harmful to plastics. Use a dry cloth to clean the

housing. If the housing is particularly dirty, use a cloth which has been slightly moistened in a cleaning

solution and then carefully wrung out. To clean the slits use a small soft dry brush.

Do not allow liquids to enter the housing interior.

Be certain that the ventilation slits remain unobstructed.

Page 12

Precautions for operation Chapter 2

2 Start of operation CRC, CRSL

2.1 Precautions for operation

Certain ground rules for operating the system, aside from reasonable safety measures, must be observed to

prevent danger to the user, third parties, the device itself and the measurement object. These are the use of the

system in conformity to its design, and the refraining from altering the system, since possible later users may not

be properly informed and may ill-advisedly rely on the precision and safety promised by the manufacturer.

Note

If you determine that the device cannot be operated in a non-dangerous manner, then the device is to be

immediately taken out of operation and protected from unintentional use. Taking this action is justified under

any of the following conditions:

the device is visibly damaged,

loosed parts can be heard within the device,

the device does not work,

the device has been stored for a long period of time under unfavorable conditions (e.g. outdoors or in

high-humidity environments).

1. Observe the specs in the manual chapter "Technical Specs" and the application hints about the individual

system in order to prevent damage to the unit through inappropriate signal connection.

2. Note when designing your experiments that all input and output leads must be provided with shielding

which is connected to the ground ("CHASSIS") at one end in order to ensure high resistance to

interference and noisy transmission.

3. Unused, open channels (having no defined signal) should not be configured with sensitive input ranges

since otherwise the measurement data could be affected. Configure unused channels with a broad input

range or short them out. The same applies to channels not configured as active.

4. To measure voltages >60 V use adequate plug.

5. In case you are using a removable storage medium,

please be aware that before you remove it

(if the device is switched on), the button (1) must be pressed to ensure that storage medium can be

safely removed. Please read the instructions in the chapter "removable storage ".

6. Be aware that during a running measurement, modules should not be disconnected from the system (hot

plug functionality is not supported during a running measurement).

7. Avoid prolonged exposure of the device to sunlight.

8. Make sure that there is sufficient space at the ventilation slits.

9. Note that parts that are not explicitly intended to be carried may be warmer than the handles.

Page 13

Modularity Chapter 2

2.2 Modularity

CRC systems

The devices belonging to the imc CRONOScompact (CRC) are modular systems. A variety of signal conditioners

and digital I/O modules can be combined to a system.

Warning

Changing modules

Changing modules is only permitted for users trained by imc or imc service and in agreement with imc!

Devices having HV modules (HV-2U2I etc.) do not support exchanging of modules (device safety!).

The following constraints, however, apply:

Within the device, the necessary supply voltage is made available by a central power supply unit. A maximum

supply current is specified for each supply voltage. The allowable current load on the voltage supply line is

different for each module type. In addition, the power for the supply of an external sensor (e.g. supply of a

strain gauge measurement bridge) must be taken into consideration. The supply power required by the power

supply unit is tested at the factory. In the process, the power consumption of the modules ordered is taken

into account. Power reserves can be requested from imc, if desired. If modules are subsequently added to a

system which has already been shipped, it is absolutely necessary to check whether enough reserve power is

available! As a matter of principle, only trained service personnel should install new system modules!

Individual modules are distinguished by "module addresses". These module addresses must be configured

prior to installing the module (e.g. DIP-switch, rotary switch, soldered jumpers). Previously existing addresses

of other modules must be taken into account. If the same module address appears multiple times, conflicts

will arise and the modules affected will either not be recognized by the device software at all or only

incorrectly. This generally leads to errors which are hard to identify!

The addresses of the module DI16-DO8-ENC4 can't be changed and are set to: DI4-16 (Addr. 1), DO8 (Addr. 0).

That has to be considered, when addressing other digital modules (DI-16, DO-8, ENC-4). The variant of this

multiboard with an additional DAC-4 will need an additional address. A further multiboard DI16(8)-DO8-ENC4(-

DAC4) can be added without gap.

For safety reasons high voltage modules (HV4U, HV2U2I etc.) are not to be changed by a customer!

CRSL systems

The devices of the imc CRONOS-SL (CRSL) series are factory configured devices. You can freely combine signal

conditioning and digital I/O modules into one system. However, you cannot add new modules after delivery of

an imc CRONOS-SL system, as for example with imc CRONOScompact.

Page 14

Power supply Chapter 2

2.3 Power supply

Measurement devices of the imc CRONOS system family are powered by a DC supply voltage which is supplied

via a 2-pin LEMO-plug.

Device

LEMO plug type designation

Size

imc CRONOS-SL2/-SL4

FGG.1B.302.CLAD.62ZN

(middle)

imc CRONOScompact

FGG.2B.302.CLAD.82ZN

(big)

The permissible supply voltage range with is 10 V to 32 V DC. The standard product package includes a desktop

supply unit with 15 V DC (<60 W) or 24 V DC (<150 W). On the input side the AC-voltage of the desktop supply is

100 V to 240 V 50/60 Hz. The DC-supply inputs of our imc measurement devices are not designed for a

connection to a DC-grid with reference to EN 61326-1.

Note

Desktop supply unit

Please note, that the operation temperature of the desktop supply is prepared for 0°C to 40°C, even if your

measurement devices is designed for extended temperature range!

The package also includes a cable with a ready-made LEMO-plug which can be connected to a DC-voltage source

such as a car battery. When using this, note the following:

Grounding of the device must be ensured. If the power supply unit comes with a grounding line, it would be

possible to ground the system "by force", by making a connection from this line to the plug enclosure (and

thus to the device ground). The table-top power supply unit is made to allow this.

This manner of proceeding may not be desirable because it may be desirable to avoid transient currents

along this line (e.g. in vehicles). In this case the ground-connection must be made to the device directly. For

this purpose a (black) banana jack ("CHASSIS") is provided.

The feed line must have low resistance, the cable must have an adequate cross-section. Any interference-

suppressing filters which may be inserted into the line must not have any series inductor greater than 1

mH. Otherwise an additional parallel-capacitor is needed.

Pin configuration:

The +pin is marked with a red dot.

2.4 Grounding, shielding of the devices

In order to comply with Part 15 of the FCC-regulations applicable to devices of Class B, the system must be

grounded. Grounding is also the condition for the validity of the technical specifications stated.

Page 15

Grounding, shielding of the devices Chapter 2

2.4.1 Grounding with the use of the included power adaptor

The DC-supply input on the device itself (LEMO socket, female) is galvanically isolated from the housing

(CHASSIS): -SUPPLY input is not connected to CHASSIS internally. That means the decive's internal power supply

circuitry comprises isolating DC/DC converter.

imc CRONOS-SL and imc CRONOScompact with desktop power supply unit

Use of the desktop power supply unit, included in the package, ensures proper grounding via the plug's

protective earth terminal: the supply voltage's (-) pole as well as the shield and plug enclosure are connected to

the cable's ground.

2.4.2 Grounding with power supplied by a car battery

If the power supply (e.g. car battery) and the measurement device are at different voltage levels, then if they

were connected by the supply line, it would cause a ground loop. For such cases, the isolated internal device

power supply ensures separation of the two voltage levels. The ground reference for the measurement device

must then be established in a separate step.

imc CRONOS-SL and imc CRONOScompact powered by an isolated DC-voltage source (e.g. battery)

For running on an isolated DC power supply source (e.g. battery), either the grounding socket terminal, a

grounding contact on the device ("CHASSIS"), or the CHASSIS contact on the imc signal plugs must be used.

Page 16

Grounding, shielding of the devices Chapter 2

Isolated power inputs avoids ground loops in distributed topologies

With stationary installations and the use of (already isolated) AC/DC adapters, any system ground differentials

between the device and the central or local power supplies may not be relevant. The big issue in such a case, in

contrast to mobile, in-vehicle applications, is from where to obtain a reliable ground voltage. Since it is

convenient to use the AC power supply's protection ground line as the ground voltage, the LEMO-terminated

AC/DC adapters for imc measurement devices are designed so that the protection ground line is connected all

the way through to the LEMO plug's housing, thus securing the device's voltage level to protection ground.

Additionally, in the AC/DC-adapter's LEMO-terminal (not the device's LEMO-socket!), the reference ground of

the power adapter is connected with the housing's (CHASSIS) protection ground: Since the AC/DC power adapter

is already isolating, as is the power input, this supply voltage's reference would not initially be defined and can

be set arbitrarily. In particular for reasons of suppressing HF (high-frequency) interference signals stemming

from the AC/DC switching power adapter, direct grounding is normally advisable.

2.4.3 Shielding

Also, all signal leads to the device must be shielded and the shielding grounded (electric contact between the

shielding and the plug housing "CHASSIS").

To avoid compensation currents, always connect the shielding to one side (potential) only.If the imc DSUB block

screw terminal plug is used, the shielding should be connected to the pull-relief clamp on the cable bushing. This

part of the conductor-coated plastic plug housing has electrical contact to the device's housing, just as Terminals

15 and 16 (labeled: "CHASSIS", to the left and right of the imc-plug cable bushing) do; but is preferable to the

"CHASSIS" terminals for optimum shielding.

2.5 Main switch

Switch on

The device's main switch is a power-on button with a built-in "POWER"-LED which must be pressed down

for approx. 1 sec. to achieve activation, indicated by the "POWER"-LED flashing. If the device boots

correctly, three short beep-tones are emitted.

Switch off

To switch the device off, press the power-on button again down for approx. 1 sec, what will cause a

constant blinking of the "POWER"-LED. This causes the device to not be deactivated abruptly during a

running measurement. Instead, any files on the internal hard drive involved are closed before the device

switches off by itself. This process takes up to 10 sec. Holding the power-on button down is not necessary!

If no measurement is currently running, it takes only approx. 1second for the device to be deactivated.

Some older imc measurement instruments may be equipped with a rocker-switch as main switch. It must be

pressed down to the "ON"-side (upper portion) for approx. 1 sec to achieve activation, indicated by the

"POWER"-LED flashing (e.g. CRONOS-PL devices). To switch the device off, press the rocker switch down on the

OFF-side (lower portion) for approx. 1 sec.

Page 17

Remote control Chapter 2

2.6 Remote control

As an alternative to the manual main switch, imc devices can be switched on or off remotely with a wiring of the

corresponding signals of the remote plug. There are several functions and operating modes available. The most

common operating mode, available for all types, is the basic ON/OFF push button action performed with one

single temporarily closing contact: connecting the signals "ON/OFF" and "SWITCH" for at least a short time,

activates the device. The following table lists imc devices and the corresponding socket type.

imc device

Remote socket

CRONOScompact

(CRC),

CRONOS-SL

(CRSL),

SPARTAN (SPAR)

DSUB-15

CRONOSflex Base and the

Power Handle

(CRFX)

LEMO.EGG.1B.306 (6-pin, middle big)

C-SERIES

(CL)

LEMO.EGG.0B.306 (6-pin, small)

Pin configuration

LEMO Pin

Signal name

Remarks

view on device

front

ON/OFF

LEMO Pin 1 and Pin 3 are internally bridged,

two operating modes are supported: SWITCH and SWITCH1

SWITCH1

automatic activation when external power supply is connected,

permanently jumpered to ON/OFF, e.g. in vehicle

ON/OFF

SWITCH

activation, deactivation like a push button,

briefly jumpered to ON/OFF, like the main switch

MUTE_GND

MUTE

muting the UPS buzzer, only with the CRFX Power Handle

view on device

front

DSUB-15 Pin

Signal name

Remarks

RESET

immediate deactivation without saving, will cause lost of data

OFF

SWITCH

activation, deactivation like a push button,

briefly jumpered to ON/OFF, like the main switch

SWITCH1

automatic activation when external power supply is connected,

permanently jumpered to ON/OFF, e.g. in vehicle

11, 4 und 12

n.c.

MUTE

muting the UPS buzzer, e.g. for acoustic applications

ON/OFF

6, 14, 7, 15, 8

n.c.

Note

When the SWITCH and ON/OFF signals are bridged with a switch, the device remains permanently on. In

this case, the main switch has no effect.

Page 18

Potential difference with synchronized devices Chapter 2

2.7 Potential difference with synchronized devices

When using multiple devices connected via the SYNC socket for synchronization purposes, ensure that all

devices are at the same voltage level.

Note

The yellow ring on the SYNC socket indicates that the socket is shielded from voltage differences.

2.8 Fuses (polarity-inversion protection)

The supply input of all devices listed in this manual is provided with a maintenance-free reverse polarity

protection.

Reference

In the chapter "Technical Specs" you will find information on the fuse or the overcurrent limitation of the

individual devices, if applicable.

The supply voltage for external sensors wired out from the voltage channels is equipped with maintenance-free

electronic fuses (current-limiters).

The incremental counter channels provide a supply voltage for external sensors, which is not protected and

should be provided with an external fuse in order to be used!

Page 19

UPS Chapter 2

2.9 UPS

Devices with DC supply input are equipped with an uninterruptible power supply (UPS). This allows for a

continuous operation unaffected by temporary short-term outage of the main power supply. This type of

operation is particularly useful for operation in a vehicle, permanently attached to starter lock and main power

switch and thus not requiring manual control. Activation of UPS buffering is indicated by the power control LED

(PWR) changing from green to yellow. With many imc measurement devices, active UPS buffering is additionally

indicated by an acoustic buzzer signal.

The UPS provides backup in case of power outage and monitors its duration. If the power outage is continuous

and if it exceeds the specific device's "buffer time constant", the device initiates an automatic shutdown

sequence, which equals manual shutdown procedure: Any current active measurement is automatically stopped,

data storage on flash card or internal harddisk is completed by securely closing all data files, and finally the

device is actually switched off. This entire process may take a couple of seconds.

Thus, a typical application of this configuration is in vehicles, where the power supply is coupled to the ignition.

A buffer is thus provided against short-term interruptions. And on the other hand, deep discharge of the buffer

battery is avoided in cases where the measurement system is not deactivated when the vehicle is turned off.

If the power failure is not continuous but only temporary, the timer that monitors blackout duration is reset

every time the main supply has returned to valid levels. The buffer time constant is a variable device parameter

that can be configured according to system size and battery capacity. It can usually be written into the device

under software control and is preconfigured to reasonable default values upon delivery (see description in the

software manual).

Reference

Please find the technical specs (buffer duration) in the manual or in the data sheet.

2.9.1 Rechargeable accumulators and batteries

2.9.1.1 Li-ion batteries

The Li-ion batteries (Smart Batteries) are accessible for exchange, with a keyed insertion mechanism, secured

against reversed polarity. They are installed at the bottom of an imc CRONOScompact (CRC) device.

imc CRONOScompact with two Li-ion battery packs

The batteries are equipped on the bottom.

imc CRONOScompact with two Li-ion battery packs

The batteries can be inserted easily, the connections are

protected against polarity reversal.

Note

Due to the inevitable leakage and self-discharge of the Smart Batteries we recommend a regular recharging

cycle at least every 3 months that a device has not been in use (device must be switched on for charging).

Do not deposit Li-ion batteries in domestic recycling containers!

Page 20

UPS Chapter 2

Reference

Li-ion battery

Please find the technical specs of the Li-Ion battery in the manual.

Notes on Li-ion Smart Batteries:

Failing to adhere to the recommended temperature ranges for storing, charging and discharging will not

render the battery pack unsafe but will reduce its life expectancy and capacity.

If Smart Batteries are stored in low charge state (<10%) they will age faster.

When storing discharged Smart Batteries, internal deep discharge protection circuitry may get activated.

This will cause the following charge cycle to run through a reactivation procedure, starting with a very low

charging current. This may prolong the required charging time.

Prolonged storage of discharged batteries is not recommended and may cause irreversible damage to the

battery!

The battery may temporarily deactivate itself in response to:

-excessive temperature

-excessive discharge current (e.g. due to short circuit)

-insufficient cell voltage (to prevent discharge)

Otherwise the UPS is operable as long as the battery does not prevent discharge.

Once the passive temperature fuse has been triggered, it cannot be reset and thus renders the battery pack

unusable. The rated temperature may not be exceeded!

For safety reasons, the Li-ion batteries may not be exposed to temperatures exceeding 100°C!

Note

In order to preserve maximum life expectancy of the Smart Batteries they should be recharged at least every 3

months. The device must be switched on for charging!

State of charge indicator of the Li-ion batteries

The state of charge of the Li-ion batteries is indicated by different signal patterns of the LEDs. The position of the

LEDs on your measurement device can differ from the pictures below. The following signal patterns can be

interpreted as follows:

state of charge:

75% to 100%

50% to 74%

25% to 49%

10% to 24%

Flashing at 2 Hz

<10%

During active charging the last active one of the four green status LEDs flashes at a rate of approx one second. In

contrast to this, the warning signal at very low state of charge (<10%) consists in the lowermost ("25") flashing at

an even faster rate.

The UPS Status LED is bicolor. In case of an error it flashes red.

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