Bosch Rexroth WGM Manuel utilisateur

Operating instructions

RE51550-B/09.2019

English

Oil humidity sensor WGM

The data speciﬁed serves to describe the

product. If information on the use of the

product is given, it is only to be regarded

as application examples and recommendations.

Catalog information does not constitute

warranted properties. The information given

does not release the user from the obligation

of own judgment and veriﬁcation. Our products

are subject to a natural process of wear and

aging.

case of applications for industrial property

protection. It may not be reproduced or

given to third parties without consent of

BoschRexrothAG.

The cover shows an example conﬁguration.

The product supplied may therefore diﬀer from

the ﬁgure shown.

The original operating instructions were

prepared in German.

RE51550-B/09.2019, BoschRexrothAG

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Contents

1 Introduction 5

1.1 Intended use 5

1.2 Functionality 5

1.2.1 Humidity monitoring 5

1.2.2 Temperature monitoring 6

1.2.3 IO-Link 6

1.3 Construction types 6

1.4 Typekey 7

1.5 Scope of delivery 8

1.6 Representation of information 8

1.6.1 Safety instructions 8

1.6.2 Warning signs and symbols 9

2 Safety instructions 10

2.1 Important notes 10

2.2 General hazard notes 10

3 Transport and storage 11

4 Set-up and connection 12

4.1 Assembly 12

4.1.1 Installation recommendations 13

4.2 Electrical connections 13

5 Operation 14

5.1 WGM-D/WGM-R 14

5.1.1 Switch-on procedure 14

5.1.2 LED status displays 14

5.1.3 General key functions 15

5.1.4 Active key lock 16

5.1.5 Menu overview 16

5.1.6 Changing the basic settings 18

5.1.6.1 Restore factory settings (reset) 18

5.1.6.2 Switching oﬀ the normal troubleshooting 20

5.1.6.3 Deﬁning the unit for humidity 20

5.1.6.4 Deﬁning the unit for temperature 20

5.1.6.5 Deﬁning the switching outputs 21

5.1.6.6 Setting the update rate of the display 21

5.1.6.7 Activate / deactivate key lock 22

5.1.7 Switching outputs 22

5.1.7.1 Switching output x: Deﬁnition of the switching characteristic 23

5.1.7.2 Switching output x: Upper switching limit (switching point) 24

5.1.7.3 Switching output x: Lower switching limit (switch-back point) 24

5.1.7.4 Switching output x: Switch-on delay 25

5.1.7.5 Switching output x: Switch-back delay 25

5.1.7.6 Switching output x: Testing the switching output 26

5.1.7.7 Change display function of the status LED 26

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BoschRexrothAG, RE51550-B/09.2019

5.1.8 Analog outputs 27

5.1.8.1 Models with analog output 27

5.1.8.2 Analog output x: Assignment of the upper limit 27

5.1.8.3 Analog output x: Assignment of the lower limit 28

5.1.8.4 Analog output x: Determining the signal type 29

5.1.8.5 Analog output x: Testing the analog output 29

5.1.9 Diagnosis options 29

5.1.9.1 Calling the log book 30

5.1.9.2 Calling the error log book 30

5.1.9.3 Maximum and minimum humidity 31

5.1.9.4 Maximum and minimum temperature 31

5.1.9.5 Deﬁning the switching output to be logged 32

5.1.9.6 Delay to min / max storage of humidity 32

5.1.9.7 Delay to min / max storage of the temperature 32

5.2 WGM-B 33

5.2.1 Switch-on procedure 33

5.2.2 Parameter settings 33

5.2.3 Factory setting 33

5.2.4 Switching outputs 33

5.2.5 Analog outputs 33

6 Maintenance and cleaning 34

7 Service and repair 34

7.1 Information on disassembly 34

7.2 Troubleshooting and remedy 35

8 Disposal 36

9 Appendix 36

9.1 General technical data 36

9.2 Technical data WGM-B 37

9.3 Technical data WGM-R / WGM-D 38

9.4 Outputs WGM-B 39

9.5 Outputs WGM-R / WGM-D 39

9.6 Pin assignment WGM-B 40

9.7 Pin assignment WGM-R / WGM-D 40

9.8 Indication ranges 41

9.9 Current settings 41

9.10 Overview menu sequence 42

Appendix: EU Declaration of Conformity

Introduction 5/46

RE51550-B/09.2019, BoschRexrothAG

1 Introduction

1.1 Intended use

Oil humidity sensors are used for monitoring the water content in oil and for

temperature measurement. Oil humidity sensors must not be used in highly

inﬂammable or corrosive liquids.

Observe the technical data in the appendix with regard to the speciﬁc intended

use, available material combinations and temperature limits.

WARNING

All device types are intended exclusively for industrial applications. They

are not safety components. The devices must not be used if the safety and

health of persons is impaired in the event of failure or malfunction.

Any use in potentially explosive areas is inadmissible.

1.2 Functionality

The sensor determines the relative humidity of the oil via the water activity (aW).

The relative humidity is comparable to the water activity.

This can also be called the degree of oil saturation. The sensor is equipped with a

measuring chamber in which the humid air inside and the humidity in the medium

are in balance. The sensor sets these values in relation to the maximum saturation.

We thus obtain a measure of the oil saturation. Furthermore, the temperature is

recorded to be able to correct the values. Water activity is given as a factor between

0 and 1. Multiplied by 100%, we get the relative humidity or the saturation in

percent.

The critical limit of saturation depends on several plant-speciﬁc parameters.

The main advantage, however, is the permanent monitoring of humidity and

temperature. This enables the machine end-user to make own statements about

changes in the plant and to adjust the plant parameters, if required.

1.2.1 Humidity monitoring

The sensor element for determining the humidity is located in the medium and

protected by a protective pipe. The relative humidity can be output permanently

as an analog or digital signal (IO-Link) or executed as a switching signal.

The threshold value is pre-set and can be freely conﬁgured depending on the type.

Depending on the version, switching outputs combined with an analog output

(4 - 20mA) are available. The display options can show the relative humidity on the

display and output it on the analog output. The threshold values of the switching

outputs can be freely conﬁgured. The sensor options oﬀer the possibility of an

analog output of the relative humidity. The threshold value of the switching point

is pre-set and can only be conﬁgured ex works or via the digital interface.

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BoschRexrothAG, RE51550-B/09.2019

1.2.2 Temperature monitoring

The temperature is monitored by a temperature sensor (Pt100) located in the

medium and protected by a protective pipe. Depending on the version, switching

outputs combined with an analog output (4 - 20mA) or digital output (IO-Link) are

available. The display options can show the temperature on the display and output it

on the analog output. The sensor options oﬀer the possibility of an analog output of

the temperature.

Please observe the technical data in the appendix.

1.2.3 IO-Link

If an IO-Link interface is available at the sensor, it is possible

to access identiﬁcation, process and diagnosis data. Sensor parameters such as

switching points or switch-back points can be set during operation. Prerequisite for

this is an IO-Link master with the corresponding conﬁguration tools.

When replacing the sensor, all parameters already set can be transferred to the new

sensor.

The sensor includes an electronic device description, the so-called IODD ﬁle. The

IODD ﬁle contains all the information required for system integration. The ﬁle can

be downloaded from the download area at https://ioddnder.io-link.com.

Further information can be found at www.io-link.com

1.3 Construction types

The WGM is available in three basic types:

Type Description

WGM-B Basic option- Sensor only

WGM-D Display option- Sensor with display

WGM-R Remote display for basic option

(connection only possible to basic optionWGM-B-1X/2A1S-G34-V)

Depending on the conﬁguration, the WGM is equipped with diﬀerent switching and

analog outputs. The outputs are freely programmable.

The sensor options are available with a digital interface. Here, the sensor uses the

standardized technology IO-Link, a powerful point-to-point communication. It is

based on the previous and proven connection technology. Compatibility with the

previous technology is guaranteed.

Introduction 7/46

RE51550-B/09.2019, BoschRexrothAG

1.4 Typekey

Oil humidity sensor type WGM

01 02 03 04 05 06

WGM – – 1X / – –

Type

01 Humidity sensor WGM

Option

02 Basic option- Sensor only

Display option- Sensor with display

Remote display for basic option

(connection only possible to basic optionWGM-B-1X/2A1S-G34-V)

03 Component series 1X

Data transmission

Option B - sensor 4...20mA; 2x analog output / 1x switching output

Option B - digital sensor; IO-Link

Option D - sensor with display 4...20mA; 2x analog output/2x switching

output

Option D - sensor with digital display; IO-Link / 1x switching output

2A1S

1D0S

2A2S

1D1S

Remote display (optionR) can only be combined with basic sensor

WGM-B-1X/2A1S-G34-V:

Option R - remote display 4...20mA; 2x analog output/2x switching output

Option R - digital remote display; IO-Link / 1x switching output

2A2S

1D1S

Connection

05 Thread G 3/4" G34

Option R - Remote display without connection 0

Seal

06 FKM V

Option R - Remote display without seal 0

Accessories Designation

Connecting cable for remote display M12x1, 8-pin,

length 3.0m, angle coupling and straight connector

ZWGM connecting cable for remote

R928058029

Connecting cable IO-Link M12x1, 4-pin,

Length 5.0m angled coupling and braided wires

ZWGM connecting cable for IO-Link,

4-pin R928058030

Connecting cable 4...20mA M12x1, 8-pin,

Length 5.0m angled coupling and braided wires

ZWGM connecting cable 4...20mA, 8-pin

R928058031

Order example Sensor Connecting cable Connecting cable

for remote

Sensor without display

WGM-B-1X/2A1S-G34-V R928057041 R928058031 –

WGM-B-1X/1D0S-G34-V R928057042 R928058030 –

Sensor with display

WGM-D-1X/2A2S-G34-V R928057045 R928058031 –

WGM-D-1X/1D1S-G34-V R928057046 R928058030 –

Remote display

WGM-R-1X/2A2S-0-0 R928057043 R928058031 R928058029

WGM-R-1X/1D1S-0-0 R928057044 R928058030 R928058029

8/46 Introduction

BoschRexrothAG, RE51550-B/09.2019

1.5 Scope of delivery

▶ Oil humidity sensor WGM

▶ Product documentation

1.6 Representation of information

Consistent safety instructions, symbols, terms and abbreviations are used in this

documentation so that you can quickly and safely work with your product. For

a better understanding, they are explained in the following sections.

1.6.1 Safety instructions

In this documentation, safety instructions are contained in chapter 2

"Safety instructions" and wherever a sequence of actions or instructions are

explained which bear the danger of personal injury or damage to property.

The measures described for hazard avoidance must be observed.

Safety instructions are set out as follows:

SIGNAL WORD

Typeand source of danger!

Consequences in case of non-compliance

▶ Hazard avoidance measures

▶ <Enumeration>

•Warning sign: draws attention to the danger

•Signal word: identiﬁes the degree of danger

•Typeand source of danger!: speciﬁes the type and source of danger

•Consequences: describes the consequences in case of non-compliance

•Avoidance: speciﬁes how the danger can be prevented

Table 1: Risk classes according to ANSI Z535.6-2006

Warning sign, signal word Meaning

DANGER Indicates a dangerous situation which will cause death or

severe injury if not avoided.

WARNING Indicates a dangerous situation which may cause death or

severe injury if not avoided.

CAUTION Indicates a dangerous situation which may cause minor or

medium personal injury if not avoided.

NOTICE Damage to property: The product or the environment could

be damaged.

Introduction 9/46

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1.6.2 Warning signs and symbols

In these instructions, the following warning signs and symbols are used:

Symbol Meaning

Warning – General danger

Warning – High voltage

Warning – Inhalation hazard: toxic gas

Warning – Corrosive liquids

General information

Disconnect mains plug

Wear respiratory protection

Wear face shield

Wear gloves

If this information is not observed, the product cannot be used and/or

operated optimally.

▶ Individual, independent action

10/46 Safety instructions

BoschRexrothAG, RE51550-B/09.2019

2 Safety instructions

2.1 Important notes

The use of the device shall only be admissible if:

▶ the product is used under the conditions described in the operating and

installation instructions, in accordance with the name plate and for the

applications for which it is intended. BoschRexrothAG accepts no liability for

unauthorized modiﬁcations to the device,

▶ the information and markings on the name plates are observed,

▶ the limit values speciﬁed in the data sheet and the instructions are observed,

▶ monitoring equipment/protective devices are correctly connected,

▶ the device is protected against mechanical damage and vibrations,

▶ the service and repair work not described in these instructions is carried out

by BoschRexrothAG,

▶ original spare parts are used.

These operating instructions are part of the operating equipment. The manufacturer

reserves the right to change the performance, speciﬁcation or design data without

prior notice. Keep the instructions for future use.

2.2 General hazard notes

The device may only be installed by specialists who are familiar with the safety

requirements and the risks. It is imperative that you observe the safety regulations

relevant to the place of installation and the generally applicable rules of technology.

Prevent faults and thereby avoid personal injury and damage to property.

The machine end-user must ensure that:

▶ safety instructions and operating instructions are available and observed,

▶ applicable national accident prevention regulations are observed,

▶ admissible data and application conditions are complied with,

▶ safeguards are used and prescribed maintenance work is carried out,

▶ legal regulations are observed during disposal.

Maintenance, repair

During maintenance and repair work, the following must be observed:

▶ Repair works on the operating equipment may only be carried out by personnel

authorized by BoschRexrothAG.

▶ Only carry out modiﬁcation, maintenance or assembly works described in these

operating and installation instructions.

▶ Only use original spare parts.

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