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Summary of Contents for hager HR551
- Page 1 Operating and assembly instructions Protection and monitoring re- lays Residual current relays Residual current relay 0.03–3 A, type B, 1-channel HR551...
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Page 2: Table Of Contents
Document content........................4 Target group......................... 4 Symbols used........................5 Safety instructions............6 Scope of delivery............7 Design and layout of the device........ 8 Function................ 9 Residual current relays HR551................... 9 5.1.1 Correct use..........................9 5.1.2 Functional description......................9 5.1.3 Product characteristics......................9 Toroidal transformer HR72x....................9 5.2.1... - Page 3 Contents 7.3.11 Individual test........................24 7.3.12 Setting the trip current and trip delay................. 25 Configuration..............27 Communication........................28 8.1.1 Transmission speed......................28 8.1.2 Peripheral no........................29 8.1.3 Data bits, stop bits and parity..................... 29 Time setting........................30 8.2.1 Year............................31 8.2.2 Month............................31 8.2.3 Day............................31 8.2.4 Hour............................
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Page 4: Introduction
Date Document Version 05/2024 Residual-current-relays_HR55x_manual_EN_2024-05 Version 1 Residual current relays HR551 Residual current relay 0.03–3 A, type B, 1-channel HR554 Residual current relay 0.03–3 A, type B, 4-channel Toroidal transformers HR721 Toroidal transformer ø35 HR722 Toroidal transformer ø55... -
Page 5: Symbols Used
Introduction Symbols used Symbols used Single-step instruction or any sequence. Multi-step instruction. Sequence must be maintained. – List Manufacturer's informa- tion in accordance with § Installation by an electrical Accessories 18 Para. 4 of the German specialist Electrical and Electronic Equipment Act Usable throughout Europe Usable in the United King-... -
Page 6: Safety Instructions
If an anomaly or a malfunction is identified, the device must not perform any measurements. Contact customer service if you find the device is not functioning correctly. Hager accepts no liability for damage caused by improper handling or by non-observance of warning information and recommendations. -
Page 7: Scope Of Delivery
Scope of delivery Scope of delivery Fig. 1: HR55x scope of delivery Fehlerstromschutz-Relais... -
Page 8: Design And Layout Of The Device
Design and layout of the device Design and layout of the device Fig. 2: View of the connecting terminals Fig. 3: Front view R1, trip relay, channel 1 (NO) Cover for connecting terminals C1, GND channel R1 CPU LED A1, power supply L T button A2, power supply N Menu button... -
Page 9: Function
The HR72x series of devices are electronic differential current protection and monitoring transform- ers of type B (IEC 60755), which can be used together with HR551 and HR554 differential current pro- tection and monitoring relays. Which device to choose depends on the maximum current of the moni- tored circuit (In): –... -
Page 10: Description Of Leds For Hr72X
Function Toroidal transformer HR72x 5.2.3 Description of LEDs for HR72x The status LED on the front of the device indicates the current operating status. Blue Indicates that the device is being supplied with power. Indicates that a leakage current error has occurred. Flashing red Flashing red: Indicates that a pre-alarm has been triggered. -
Page 11: Information For Qualified Electricians
Information for qualified electricians Assembly and electrical connection Information for qualified electricians Assembly and electrical connection 6.1.1 Assembly of HR72x Danger Electric shock when live parts are touched! An electric shock can lead to death! Isolate all connection cables before working on the device and cover any live parts in the area! Fix the plug-in terminals to the device. - Page 12 Information for qualified electricians Assembly and electrical connection Fig. 5: HR72x – Assembly on the mounting plate Assembly option 2: Fixing on the DIN rail Fix the mounting rail onto the DIN rail in the desired assembly direction. Attach the device to the fixing clamp. 180°...
- Page 13 Information for qualified electricians Assembly and electrical connection Fig. 8: HR72x – Passing cables through Warning Risk of destruction! Passing the cables through incorrectly can damage the device. Keep the cables in the centre of the toroidal transformer as you guide them through. Fig.
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Page 14: Assembly Of Hr55X
Information for qualified electricians Assembly and electrical connection L> Fig. 13: Avoid cable bends Fig. 14: Avoid cable bends 6.1.2 Assembly of HR55x Danger Electric shock when live parts are touched! An electric shock can lead to death! Isolate all connection cables before working on the device and cover any live parts in the area! Remove the covers of the plug-in connecting terminals. - Page 15 Information for qualified electricians Assembly and electrical connection ~ / + ~ / - HR72x 21 22 HR72x TRIP Fig. 16: HR551 – Electrical connection Attach the covers of the plug-in connecting terminals. Fehlerstromschutz-Relais...
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Page 16: Operation
Operation Status LEDs Operation Status LEDs The device has two LEDs providing information on the status of the device. Description White lit constantly: CPU LED (13) Indicates that the device is switched on Flashing red: Indicates that a pre-alarm has been triggered ALARM LED (17) Red lit constantly: Indicates that tripping has occurred... -
Page 17: Lcd Screen Description
Operation Display Icon Description Icon Description Alternating current Pre-alarm activated Direct current Programming screen High frequency (type F) The relay has tripped The relay is positively polarised Channel 1 Internal device error No time setting configured Direct settings are locked To unlock the device, see "Lock menu". -
Page 18: Relay
Operation Display 7.3.3 Relay The relay has output relays (terminal 1 and terminal 3), which trip when a certain channel is affected. 7.3.4 Digital input The device has a digital input (terminal 21 and terminal 22). This is required to perform a trip. 7.3.5 Start screen The start screen appears after the device has been switched on and the initialisation phase has... -
Page 19: Channel Display Screen
Operation Display The relay has detected additional toroidal transformers, which are not registered in the installation Open the set-up menu to save the new installation. 7.3.7 Channel display screen The channel display screen shows the discharge current, the trip current values and the recovery cur- rent of the channel. -
Page 20: Screen When The Relay Trips
Operation Display Access to the lock menu. Note: If another button is not pressed for 60 seconds, the relay jumps back to the display for channel 1. Access to the event menu. Note: If another button is not pressed for 60 seconds, the relay jumps back to the display for channel 1. -
Page 21: Lock Menu
Operation Display Set trip current (mA) Trip delay Alternating rated fault current, which has caused the relay to trip (mA) Set trip current (mA) Trip delay Continuous rated fault current, which has caused the relay to trip (mA) Press the R button for >... -
Page 22: Event Menu
Operation Display 7.3.10 Event menu The event menu allows you to view the last 20 events for the device. Fig. 22: Event menu Open the event menu. Press the button. The last 20 events open and are shown on screen. Press the buttons to toggle between the events. - Page 23 Operation Display Hour Year Month and day Hour Year Month and day Hour Year Month and day The channel relay trip (TRA) is visualised on six screens. Hour Year Month and day Trip information (AC, DC) Trip information (AC) Trip information (DC) Fehlerstromschutz-Relais...
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Page 24: Individual Test
Operation Display Note The event log can be reset via a setting made in the communication configuration. 7.3.11 Individual test It is possible to perform an individual channel test to check the relay is working correctly. The channel display screen is shown. Fig. -
Page 25: Setting The Trip Current And Trip Delay
Operation Display 7.3.12 Setting the trip current and trip delay Direct settings The trip current, trip delay and trip circuit can be set on the channel display screen. Tripping current > Delay and relay curve Fig. 24: Overview of direct settings for the trip current, trip delay and trip circuit Setting the trip current The screen for the trip current "Fig. - Page 26 Operation Display Trip current 30 mA 100 mA 300 mA Possible values 500 mA 1.0 A 3.0 A Table 4: Setting options for the trip current Setting the trip delay The screen for the trip delay "Fig. 26: Screen for the trip delay" has been opened Fig.
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Page 27: Configuration
Configuration Configuration Overview of all configurable parameters Five main configurations can be set up: Communication, Time setting, Pre-alarm, Trip relay and Installation. These main configurations can be managed using the symbols shown ("Fig. 27: Set-up menu"). Communication > 3 s <... -
Page 28: Communication
Configuration Communication Communication The Communication set-up menu is used to edit the settings for RS-485 communication. Fig. 28: Communication set-up menu The Transmission speed, Peripheral device no. and Parity parameters can be configured here. Transmission speed > < > Peripheral device no. >... -
Page 29: Peripheral No
Configuration Communication Transmission speed [baud] Possible values 4.8, 4800 bps 38.4, 38400 bps 19.2, 19200 bps 38.4, 38400 bps 57.6, 57600 bps 115.2, 115200 bps Table 6: Setting options for the baud rate Press the R or T button to choose between the different values. Press the button to jump to the next programming point. -
Page 30: Time Setting
Configuration Time setting Fig. 32: Data bits, stop bits and parity Press the button to edit the data bits, stop bits and parity. The programming value flashes. Data bits, stop bits and parity 8N1, 8 data bits, no parity, 1 stop bit 8E1, 8 data bits, even parity, 1 stop bit 801, 8 data bits, odd parity, 1 stop bit Possible values... -
Page 31: Year
Configuration Time setting Year Month Hour Fig. 34: Time setting menu 8.2.1 Year Configure the year here. Press the R or T button to choose be- tween the different values. Press the button to confirm the setting and jump to the next programming point. 8.2.2 Month Configure the month here. -
Page 32: Hour
Configuration Time setting 8.2.4 Hour Configure the time here. Press the R button to increase the time in one-hour increments. Press the T button to decrease the time in one-hour increments. Press the button to confirm the setting. Set the minutes as in steps 1 and 2. Press the button to confirm the setting and go back to the Time setting set-up menu. -
Page 33: Pre-Alarm Operation
Configuration Pre-alarm Fig. 37: Pre-alarm trip current Press the button to set the percentage of the trip current. The programming value flashes. Press the R or T button to choose between the different values. Pre-alarm trip current Minimum value Maximum value 100% Table 9: Setting options for the trip current of a pre-alarm Press the... -
Page 34: Pre-Alarm Polarity
Configuration Pre-alarm Press the button for > 3 seconds to confirm the setting. Press the R button to go to the next configuration point. 8.3.3 Pre-alarm polarity The pre-alarm polarity is configured in this step. Fig. 39: Pre-alarm operation Press the button to set the percentage of the trip current. -
Page 35: Polarity
Configuration Trip relay 8.4.1 Polarity The polarity is configured in this step. Fig. 42: Polarity Press the button to set the polarity. The programming value flashes. Press the R or T button to choose between the different values. Polarity YES: The trip relay works with positive polarity. The + symbol appears on the display. Possible values NO: The trip relay works with standard polarity. -
Page 36: Saving The Installation
Configuration Installation 8.5.1 Saving the installation Press the button to go to programming mode. The programming value flashes. Press the R or T button to choose between the different options. Saving the installation YES: The device installation is saved. Possible values NO: The device installation is not saved. -
Page 37: Rs-485 Communication
RS-485 communication Connecting devices with RS-485 RS-485 communication The device has an RS-485 communication connection and features the Modbus® RTU communication protocol. Connecting devices with RS-485 Requirements for the RS-485 cable Twisted cable With mesh shielding Minimum 3 wires Note The maximum distance between the device and master device is 1200 m. -
Page 38: Modbus® Protocol
RS-485 communication Modbus® protocol RS-232/USB/ Ethernet/ Profibus ... RS-232 Ethernet Profibus RS-485 RS-485 A(+) B(-) Fig. 46: Connecting Modbus RS-485 Modbus® protocol The device uses RTU mode (Remote Terminal Unit) within the Modbus® protocol. The Modbus® functions implemented in the device: –... -
Page 39: Device And Installation Variables
0: Not tripped - 1: Tripped The installation has changed. bool 0: Not changed - 1: Changed Internal error detected in the HR551. bool 0: Not detected - 1: Detected Saving the new installation. bool 1: Save the installation... -
Page 40: Channel Variables
RS-485 communication Modbus® commands 9.3.2 Channel variables Function 0x04: Read registers Configuration variables Format Address Units/Format Model HR72x Character string FA0-FA1 Serial no. of the HR72x Character string FA2...FA8 Firmware version (part 1) Unit [16] Firmware version (part 2) Unit [16] Revision of the firmware version Unit [16] HR72x status... -
Page 41: Variables Of The Trip Unit For A Test Or Communication
RS-485 communication Modbus® commands Possible status of HR72x Value Description HR72x tripped by TEST with an error test result HR72x tripped by TEST with a successful test result HR72x was tripped due to communication HR72x tripped by TRIP input Table 18: Status of HR72x Function 0x02 Parameter Format... -
Page 42: Event Parameters
RS-485 communication Modbus® commands 9.3.4 Event parameters Read the Number of events in the channel you want to query. Write the number of the channel you want to query to the Channel selection: 1. Write the number of the event you want to query to the Event selection. Read the eight Event registers to query the details of the events. - Page 43 RS-485 communication Modbus® commands Function 0x03: Read registers Function 0x10: Write several registers Configuration of the trip and the pre-alarm 0: Deactivated Pre-alarm operation Unit [16] 3717 1: Activated with deactivated interlock 2: Activated with activated interlock Pre-alarm polarity Unit [16] 36CE 0: Standard polarity 1: Positive polarity...
- Page 44 RS-485 communication Modbus® commands Trip current Parameter Format Function Address Value Value 1 Unit [16] 0x04 1014 30 mA – 0 Value 2 Unit [16] 0x04 1015 100 mA – 0 Value 3 Unit [16] 0x04 1016 300 mA – 0 Value 4 Unit [16] 0x04...
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Page 45: Appendix
Appendix Technical data Appendix 10.1 Technical data Nominal voltage 230 V~, +/- 15% Frequency 50/60 Hz Power 7.5 VA Category of the installation CAT III 300 V Monitoring functions Degree of protection Type B Sensitivity (I n) 0.03 – 0.1 – 0.2 – 0.3 – 0.5 – 0.75 – 1 – 1.5 – 2 – 3 A Settable trigger delay INS [S] –... -
Page 46: Dimensions
Appendix Dimensions Maximum height 2000 m Degree of protection IP30 Conductor cross-section 2.5 mm² Dimensions 52.5 x 118 x 74 mm Standard IEC 60947-2-M/IEC 60755 10.2 Dimensions Dimensions for HR55x 52.5 Fig. 47: Dimensions for HR55x Fehlerstromschutz-Relais... - Page 47 Appendix Dimensions Dimensions for HR72x Ø6.5 Fig. 48: Dimensions for HR72x Device dimensions for HR72x Copper cable (3P+N) HR721 61.5 35.5 44.5 4x25 mm HR722 98.5 55.5 52.5 81.5 4x70 mm HR723 123.5 81.5 80.5 101.5 4x120 mm HR724 153.5 96.5 110.5 4x240 mm...
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Page 48: Disposal Note
Appendix Disposal note 10.3 Disposal note Correct Disposal of this product (Waste Electrical & Electronic Equipment). (Applicable in the European Union and other European countries with separate collection systems). This marking shown on the product or its documentation indicates that it should not be disposed of with other household waste at the end of its working life. - Page 49 Hager Electro SAS 67215 Obernai Cedex France T +33 (0) 3 88 49 50 50 F +33 (0) 3 88 49 50 53 info@hager.com hager.com 2024-04...
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