Endress+Hauser RNF22 User manual

Products Solutions Services
Operating Instructions
RNF22
Power and error message module 24 V DC
BA02039K/09/EN/01.20
71526787
2020-10-30

Table of contents RNF22
2 Endress+Hauser
Table of contents
1 About this document ................ 3
1.1 Document function ..................... 3
1.2 Symbols .............................. 3
2 Basic safety instructions ............ 5
2.1 Requirements for the personnel ............ 5
2.2 Designated use ........................ 5
2.3 Workplace safety ....................... 5
2.4 Operational safety ...................... 5
2.5 Product safety ......................... 6
2.6 Installation instructions .................. 6
3 Product descriptions ................ 7
3.1 Product description RNF22 ................ 7
4 Incoming acceptance and product
identification ....................... 7
4.1 Incoming acceptance .................... 7
4.2 Product identification .................... 7
4.3 Scope of delivery ....................... 8
4.4 Certificates and approvals ................ 8
4.5 Storage and transport ................... 8
5 Installation ........................ 9
5.1 Installation conditions ................... 9
5.2 Installing the DIN rail bus connector ......... 9
5.3 Installing a DIN rail device ................ 9
5.4 Disassembling the DIN rail device .......... 10
6 Electrical connection .............. 11
6.1 Electrical connection ................... 11
7 Operation options ................. 13
7.1 Display and operating elements RNF22 ..... 13
8 Commissioning .................... 13
8.1 Post-installation check .................. 13
8.2 Switching on the device ................. 14
9 Diagnostics and troubleshooting ... 15
9.1 General troubleshooting ................. 15
10 Maintenance ...................... 15
11 Repair ............................ 15
11.1 General information ................... 15
11.2 Spare parts .......................... 15
11.3 Return .............................. 16
11.4 Disposal ............................ 16
12 Technical data .................... 17
12.1 Function and system design .............. 17
12.2 Input ............................... 17
12.3 Output ............................. 17
12.4 Power supply ......................... 18
12.5 Performance characteristics .............. 19
12.6 Installation .......................... 19
12.7 Environment ......................... 20
12.8 Mechanical construction ................ 21
12.9 Display and operating elements RNF22 ..... 22
12.10 Ordering information ................... 22
12.11 Accessories .......................... 23
12.12 Certificates and approvals ............... 23
12.13 Supplementary documentation ............ 24
13 Appendix: system overview of RN
Series ............................ 25
13.1 Power supply of RN Series ............... 25
13.2 Applications of the RN Series devices ....... 31
Index .................................. 38

RNF22 About this document
Endress+Hauser 3
1 About this document
1.1 Document function
These Operating Instructions contain all the information that is required in various phases
of the life cycle of the device: from product identification, incoming acceptance and
storage, to mounting, connection, operation and commissioning through to
troubleshooting, maintenance and disposal.
1.2 Symbols
1.2.1 Safety symbols
DANGER
This symbol alerts you to a dangerous situation.
Failure to avoid this situation will result in serious or
fatal injury.
WARNING
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in serious or
fatal injury.
CAUTION
This symbol alerts you to a dangerous situation.
Failure to avoid this situation can result in minor or
medium injury.
NOTICE
This symbol contains information on procedures and
other facts which do not result in personal injury.
1.2.2 Symbols for certain types of information
Symbol Meaning
Permitted
Procedures, processes or actions that are permitted.
Preferred
Procedures, processes or actions that are preferred.
Forbidden
Procedures, processes or actions that are forbidden.
Tip
Indicates additional information.
Reference to documentation
A
Reference to page
Reference to graphic
Notice or individual step to be observed
1.
,
2.
,
3.
… Series of steps
Result of a step
Help in the event of a problem
Visual inspection

About this document RNF22
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1.2.3 Electrical symbols
Direct current Alternating current
Direct current and alternating current Ground connection
A grounded terminal which, as far as
the operator is concerned, is
grounded via a grounding system.
1.2.4 Symbols in graphics
1, 2, 3,... Item numbers A, B, C, ... Views
1.2.5 Symbols at the device
Warning
Observe the safety instructions contained in the associated Operating Instructions

RNF22 Basic safety instructions
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2 Basic safety instructions
2.1 Requirements for the personnel
The personnel for installation, commissioning, diagnostics and maintenance must fulfill
the following requirements:
‣Trained, qualified specialists must have a relevant qualification for this specific function
and task.
‣Are authorized by the plant owner/operator.
‣Are familiar with federal/national regulations.
‣Before starting work, read and understand the instructions in the manual and
supplementary documentation as well as the certificates (depending on the
application).
‣Follow instructions and comply with basic conditions.
The operating personnel must fulfill the following requirements:
‣Are instructed and authorized according to the requirements of the task by the facility's
owner-operator.
‣Follow the instructions in this manual.
2.2 Designated use
2.2.1 Power and error message module
The power and error message module is used to provide the supply voltage to the DIN rail
bus connector. The device is designed for installation on DIN rails in accordance with IEC
60715.
2.2.2 Product liability
The manufacturer does not accept any responsibility for damage that results from non-
designated use and from failure to comply with the instructions in this manual.
2.3 Workplace safety
For work on and with the device:
‣Wear the required personal protective equipment according to federal/national
regulations.
2.4 Operational safety
Risk of injury!
‣Operate the device only if it is in proper technical condition, free from errors and faults.
‣The operator is responsible for interference-free operation of the device.
Modifications to the device
Unauthorized modifications to the device are not permitted and can lead to unforeseeable
dangers:
‣If modifications are nevertheless required, consult with the manufacturer.
Repair
To ensure continued operational safety and reliability:
‣Carry out repairs on the device only if they are expressly permitted.
‣Observe federal/national regulations pertaining to the repair of an electrical device.
‣Use only original spare parts and accessories from the manufacturer.

Basic safety instructions RNF22
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Hazardous area
To eliminate danger to persons or the facility when the device is used in the hazardous
area (e.g. explosion protection):
‣Check the nameplate to verify if the device ordered can be put to its intended use in the
hazardous area.
‣Observe the specifications in the separate supplementary documentation that is an
integral part of these instructions.
2.5 Product safety
This device is designed in accordance with good engineering practice to meet state-of-the-
art safety requirements, has been tested, and left the factory in a condition in which it is
safe to operate.
2.6 Installation instructions
• The device's IP20 degree of protection is intended for a clean and dry environment.
• Do not expose the device to mechanical and/or thermal stress that exceeds the specified
limits.
• The device is intended for installation in a cabinet or similar housing. The device may
only be operated as an installed device.
• To protect against mechanical or electrical damage, the device must be installed in an
appropriate housing with a suitable degree of protection according to IEC/EN 60529.
• The device fulfills the EMC regulations for the industrial sector.

RNF22 Product descriptions
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3 Product descriptions
3.1 Product description RNF22
3.1.1 Product design
Power and error message module
• The RNF22 power and error message module is used to provide the supply voltage to the
DIN rail bus connector. Via a relay contact and a flashing LED, the integrated error
analysis function signals a power supply failure/fuse error and a group error of the
RLN22 Namur modules that are connected via the DIN rail bus connectors.
• The device is optionally available with Ex approvals for installation and operation in the
hazardous area (Zone 2) and hazardous atmospheres formed by combustible dust (Zone
22). Separate Ex documentation (XA) is supplied with these devices. Compliance with
the installation instructions and connection data in this documentation is mandatory!
4 Incoming acceptance and product
identification
4.1 Incoming acceptance
Check the following during incoming acceptance:
• Are the order codes on the delivery note and the product sticker identical?
• Are the goods undamaged?
• Do the nameplate data match the ordering information on the delivery note?
If one of these conditions is not met, please contact the manufacturer's sales office.
4.2 Product identification
The following options are available for identification of the device:
• Nameplate specifications
• Extended order code with breakdown of the device features on the delivery note
• Enter the serial number from the nameplate in the W@M Device Viewer
(www.endress.com/deviceviewer): all data relating to the device and an overview of the
Technical Documentation supplied with the device are displayed.
• Enter the serial number on the nameplate into the Endress+Hauser Operations App or
scan the 2-D matrix code (QR code) on the nameplate with the Endress+Hauser
Operations App: all the information about the device and the technical documentation
pertaining to the device is displayed.
4.2.1 Nameplate
The right device?
Compare and check the data on the nameplate of the device against the requirements of
the measuring point:

Incoming acceptance and product identification RNF22
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0044
iTEMP®TMT82
Made in Germany 2012 D-87484 Nesselwang
TAGXXXXXXXXXXX
TAGXXXXXXXXXXX
Order code: TMT82-xxx/xx
Ext. ord. cd.: XXXXXXXXXXX
Ser. no.: XXXXXXXXX
Input: 12-42 V
Current cunsum.: 23,0 mA
1
EH 08.001X
II3G Ex nA II T6/T5/T4 Ta= -40 ...+ 55/70/85°C
II3G Ex nL IIC T6/T5/T4 Ta= -40 ... +55/70/85°C
Install per XA0xxxxT/09/a3/xx.xx
7
1
2
3
4
5
7
8
A0041996
 1 Nameplate (example of Ex version)
1 Product name and manufacturer ID
2 Order code, extended order code and serial number, DataMatrix 2D code, FCC-ID (if applicable)
3 Power supply and current consumption, output
4 Approval in hazardous area with number of the relevant Ex documentation (XA...)
5 Fieldbus communication logo
6 Firmware version and device revision
7 Approval logos
8 2 lines for the TAG name
4.2.2 Name and address of manufacturer
Name of manufacturer: Endress+Hauser Wetzer GmbH + Co. KG
Address of manufacturer: Obere Wank 1, D-87484 Nesselwang
Model/type reference: RNF22
4.3 Scope of delivery
The scope of delivery comprises:
• Device as per order
• Printed copy of the Brief Operating Instructions
• Optional: Functional safety manual (SIL mode)
• Additional documentation for devices which are suitable for use in the hazardous area
(0 1), such as Safety Instructions (XA...), Control or Installation Drawings (ZD...).
4.4 Certificates and approvals
For certificates and approvals valid for the device: see the data on the nameplate
Approval-related data and documents: www.endress.com/deviceviewer → (enter the
serial number)
4.5 Storage and transport
When storing and transporting the device, pack it so that it is reliably protected
against impact. The original packaging provides optimum protection.

RNF22 Installation
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5 Installation
5.1 Installation conditions
5.1.1 Dimensions
The dimensions of the device are provided in the 'Technical data' section of the Operating
Instructions.
5.1.2 Mounting location
The device is designed for installation on 35 mm (1.38 in) DIN rails in accordance with IEC
60715 (TH35).
The device's housing provides basic insulation from neighboring devices for 300 Veff. If
several devices are installed side by side, this must be taken into consideration and
additional insulation must be provided if necessary. If the adjacent device also offers basic
insulation, no additional insulation is required.
NOTICE
‣When using in hazardous areas, the limit values of the certificates and approvals must
be observed.
For information on ambient conditions, see the "Technical data" section.
5.2 Installing the DIN rail bus connector
If using the DIN rail bus connector for the power supply, clip it onto the DIN rail
BEFORE mounting the device. Pay attention to the orientation of the module and DIN
rail bus connector when doing so: the snap-on clip should be at the bottom and the
connector piece on the left!
1. 2. 3.
A0040187
 2 Installing the DIN rail bus connector 17.5 mm (0.69 in)
1. Connect two or more DIN rail bus connectors together.
2. Attach the DIN rail bus connectors to the top of the DIN rail and allow them to click
into place on the underside of the DIN rail.
3. The DIN rail devices can now be installed.
5.3 Installing a DIN rail device
The device can be installed in any position (horizontal or vertical) on the DIN rail without
lateral clearance from neighboring devices. No tools are required for installation. The use
of end brackets (type "WEW 35/1" or similar) on the DIN rail is recommended to fix the
device.

Installation RNF22
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1.
2.
3.
A0041736
 3 Installing on DIN rail
1. Position the top DIN rail groove at the top end of the DIN rail.
2. While holding the front of the device horizontally, lower it until you hear the locking
clip of the device click into place on the DIN rail.
3. Pull gently on the device to check if it is correctly mounted on the DIN rail.
5.4 Disassembling the DIN rail device
1.
2. 3.
A0039696
 4 Disassembling the DIN rail device
1. Insert a screwdriver into the tab of the DIN rail clip.
2. Use the screwdriver to pull down on the DIN rail clip as shown in the diagram.
3. Hold down the screwdriver to remove the device from the DIN rail.