IFM Electronic DL0203 Operating Instructions Manual

Operating instructions

Level control relay

DL0203

80097642 / 00 10 / 2014

Contents

1 Preliminary note �� 4

1�1 Symbols and warnings used ��4

2 Safety instructions ��5

2�1 General �� 5 2�2 Target group ��5 2�3 Electrical connection ��5 2�4 Handling ��6 2�5 Installation location ��6 2�6 Housing temperature ��6 2�7 Tampering with the device ��6

3 Functions and features ��7

3�1 Functionality ��8

3�1�1 Switching diagram ��9

4 Operating and display elements ��10

4�1 LEDs �� 10 4�2 Potentiometer ��10

5 Installation�� 11

5�1 Installation of the device �� 11

5�1�1 Remove the device �� 11

5�2 Mounting of the sensors �� 11

6 Electrical connection �� 12

6�1 Connection accessories ��12 6�2 Terminal connection �� 12 6�3 Voltage supply (power) ��13

6�3�1 AC supply ��13 6�3�2 DC supply ��13

6�4 Inputs �� 14

6�4�1 General �� 14 6�4�2 Connection of sensor 1 (upper level) ��14 6�4�3 Connection of sensor 2 (lower level) ��14

6�5 Outputs ��15

6�5�1 Relay output ��15 6�5�2 Transistor output �� 15

6�6 Connection of the valve or pump �� 15

7 Settings �� 16

7�1 Input delay ��16

8 Scale drawing ��17

9 Technical data �� 17

9�1 Approvals/standards ��18

10 Troubleshooting ��19

11 Maintenance, repair, disposal ��19

11�1 Maintenance ��19 11�2 Cleaning the housing surface ��19 11�3 Repair ��19 11�4 Disposal ��19

This document is the original instructions�

1 Preliminary note

This document applies to the level control relay DL0203� This document is intended for specialists� These specialists are people who are

qualified by their training and their experience to see risks and to avoid possible hazards that may be caused during operation, installation or maintenance of the device�

Read this document before use to familiarise yourself with operating conditions, installation and operation� Keep this document during the entire duration of use of the device�

WARNING

Adhere to the warning notes and safety instructions (→ 2 Safety instructions).

1.1 Symbols and warnings used

► Instructions > Reaction, result […] Designation of keys, buttons or indications → Cross-reference

Important note Non-compliance can result in malfunction or interference�

Information Supplementary note�

WARNING

Warning of serious personal injury� Death or serious irreversible injuries may result�

CAUTION

Warning of personal injury� Slight reversible injuries may result�

NOTE

Warning of damage to property�

2 Safety instructions

2.1 General

Follow the operating instructions� Non-observance of the instructions, operation which is not in accordance with use as prescribed below, wrong installation or incorrect handling can affect the safety of operators and machinery�

The installation and connection must comply with the applicable national and international standards� Responsibility lies with the person installing the device�

The system installer is responsible for the safety of the system into which the device is integrated�

2.2 Target group

The device must only be installed, connected and put into operation by a qualified electrician�

2.3 Electrical connection

Disconnect the unit externally before handling it� Also disconnect any independently supplied relay load circuits�

Make sure that the external voltage is generated and supplied according to the requirements for safety extra-low voltage (SELV) since this voltage is supplied without further measures near the operating elements and at the terminals for the supply of connected sensors�

The wiring of all signals in connection with the SELV circuit of the device must also comply with the SELV criteria (safety extra-low voltage, safe electrical isolation from other electric circuits)�

If the externally supplied or internally generated SELV voltage is externally grounded, the responsibility lies with the user in accordance with the applicable national installation regulations� All statements in these operating instructions refer to the unit the SELV voltage of which is not grounded�

It is not allowed to supply external voltage to the terminals for the pulse pick-up supply� The consumption of current which exceeds the value given in the technical data is not allowed�

An external main switch must be installed for the unit which can switch off the unit and all related circuits� This main switch must be clearly assigned to the unit�

2.4 Handling

Be careful when handling the unit once power is applied� This is only allowed by qualified personnel due to the protection rating IP 20�

2.5 Installation location

For the correct operation the device must be mounted in a housing which can only be opened using a tool or in a locked control cabinet (both protection rating IP 54 or higher) as an enclosure in accordance with EN 61010�

2.6 Housing temperature

As described in the technical specifications below the device can be operated in a wide ambient temperature range� Because of the additional internal heating the operating elements and the housing walls can have high perceptible temperatures when touched in hot environments�

2.7 Tampering with the device

In case of malfunction of the unit or queries please contact the manufacturer� Any tampering with the device can seriously affect the safety of operators and machinery� This is not permitted and leads to the exclusion of any liability and warranty claims�

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