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Instruction Manual

CBS-400B

7.- RS-485 COMMUNICATIONS

The

CBS-400B

has an RS-485 communications port. The device is equipped with the

MODBUS RTU

communication protocol as standard.

7�1�- CONNECTIONS

The RS-485 cable must be wired using twisted pair cable with mesh shield (minimum 3 wires), with a

maximum distance of 1200 meters between the

CBS-400B

and the master unit.

In this bus we can connect a maximum of 32

CBS-400B

For communication with the master unit, we must use a smart RS-232 to RS-485 network protocol

converter.

B(-)

A(+)

RS-232 / USB / Ethernet / Profibus ...

RS-485

RS-232

USB

Ethernet

Profibus

...

A+
B-

GND

A+

B-

Figure 35: RS-485 connection diagram�

Note:

Default values of the RS-485 communication:

9600 bps

no parity

8 data bits

and

1 stop bit

7�2�- MODBUS PROTOCOL

Within the Modbus protocol, the

CBS-400B

uses the RTU (Remote Terminal Unit) mode.

The Modbus functions implemented in the device are as follows:

Function 0x01

: Reading a relay.

Function 0x02

: Reading input status.

Functions 0x03 and 0x04

: Reading integer registers.

Function 0x05

: Writing a relay.

Function 0x10

: Writing multiple registers.

Содержание CBS-400B

Страница 1: ...INSTRUCTION MANUAL Protection and monitoring relay CBS 400B M257B01 03 20A...

Страница 2: ...2 CBS 400B Instruction Manual...

Страница 3: ...ly prior to connecting the unit Follow all installation and maintenance in structions throughout the unit s working life Pay special attention to the installation standards of the National Electrical...

Страница 4: ...L OUTPUTS 20 4 5 RELAYS 20 4 6 DIGITAL INPUT 20 5 DISPLAY 21 5 1 CLOCK SETUP MENU 21 5 2 PROBLEMS OR CHANGES IN THE INSTALLATION 22 5 3 DISPLAY SCREENS 23 5 4 TRIP DISPLAY SCREENS 24 5 5 TEST SCREEN 2...

Страница 5: ...L VARIABLES 39 7 3 3 TRIPPING DUE TO TEST OR COMMUNICATIONS 40 7 3 4 EVENTS 41 7 3 5 DEVICE CONFIGURATION VARIABLES 42 8 TECHNICAL FEATURES 45 8 1 CBS 400B 45 8 2 WGB 47 9 MAINTENANCE AND TECHNICAL SE...

Страница 6: ...e devices are for illustrative purposes only and may differ from the original device SYMBOLS Table 2 Symbols Symbol Description In accordance with the relevant European directive Device covered by Eur...

Страница 7: ...th 4 inde pendent channels compatible with the earth leakage transformers in the WGB product range and includes adjustable prealarm leakage sensitivity and integrated RS 485 communications The device...

Страница 8: ...8 CBS 400B Instruction Manual The transformers have 6 LEDs providing information about the transformer s status 2 RJ45 connection and power supply ports...

Страница 9: ...pow ered Cables must always be kept in perfect condition to avoid accidents or injury to personnel or installa tions Restrict the operation of the device to the specified measurement category voltage...

Страница 10: ...nnected to a power circuit protected by a fuse according to its power and con sumption rating It must be fitted with a circuit breaker or equivalent device to disconnect the device from the power supp...

Страница 11: ...19 Prealarm Digital output NO 11 A2 Power supply 20 Prealarm Digital output Common 1 R1 Output relay channel 1 NO 21 TRIP Digital input for external trigger 2 R2 Output relay channel 2 NO 22 GND for...

Страница 12: ...mounting or DIN rail assembly with an accessory for installa tion The WGB is a feed thru busbar type transformer where the conductor cables to be measured must pass through the inner hole or window o...

Страница 13: ...evice see Figure 6 Figure 6 Support bracket The steps to ensure proper installation are 1 Attach the bracket to the DIN rail Be sure the side marked FRONT is visible The bracket can be in stalled in 2...

Страница 14: ...ail use a screwdriver to pry it off Figure 8 Figure 8 To remove the bracket use a screwdriver 3 5 3 TRANSFORMER TERMINALS 2 1 Figure 9 WGB terminals Table 5 List of WGB terminals Device terminals 1 2...

Страница 15: ...ormer LEDs Power Blue color indicates that the device is supplied power TRIP Red color indicates that a leakage current trip has occurred Red blinking indicates that a prealarm has been generated Chan...

Страница 16: ...Alimentaci n Power Supply Figure 11 CBS 400B Connection diagram 3 7 INSTALLATION CONNECTIONS All active conductors that supply the loads or part of the installation where protection is required must p...

Страница 17: ...assigning each of them a specific channel Connect the CBS 400B output relays to each of the installed channels If the automatic channel connection carried out by the device does not match the install...

Страница 18: ...2 LEDs CPU white color indicates that the device is on ALARM Table 7 ALARM LED LED Description ALARM Red blinking Indicates that a prealarm has been generated in one of the channels Red ON Indicates t...

Страница 19: ...cription Alternating current Prealarm activated Direct current The device clock has not been set up Channel CH1 channel 1 CH2 channel 2 CH3 channel 3 CH4 channel 4 A trip has been generated Programmin...

Страница 20: ...tings the setup menu or the event menu depending on the screen being displayed 4 4 DIGITAL OUTPUTS The device has a digital output terminals 19 and 20 of Figure 3 that is activated when a prealarm is...

Страница 21: ...ce goes to the main display screen without updating the date and time The display screen shows the icon indicating that the CBS 400B clock has not been configured Figure 17 shows the year setup screen...

Страница 22: ...p completed 5 2 PROBLEMS OR CHANGES IN THE INSTALLATION If the device detects a problem in the installation when the clock has been set up the screens will be lit in yellow and one of the following sc...

Страница 23: ...rent and the trip current and delay values of each channel Figure 22 Leakage current instantaneous Trip current Trip delay Figure 22 Display screen Use keys and to browse through the different screens...

Страница 24: ...te the device goes to Channel 1 s display screen 5 4 TRIP DISPLAY SCREENS If a trip has been generated in a channel the display screen of that channel will be displayed in red the Alarm LED will be li...

Страница 25: ...while it displays the screen of the channel on which the test is to be carried out If the relay has been tripped correctly the screen in Figure 24 is displayed And the Alarm LED is lit in red Figure 2...

Страница 26: ...ord has been activated see 6 5 PASSWORD the following screen is dis played to enter the access password Use keys and to modify the digit s value Press key to skip through the digits To validate the va...

Страница 27: ...ammed To return to the last programming point press once the key Hold down the key for 3s to validate the data and exit the programming 5 7 EVENT MENU To enter the event menu we must display the Event...

Страница 28: ...h and Day Event 1 of channel 4 WGB error Time Event 1 of channel 4 WGB error Year Event 1 of channel 4 WGB error Month and Day Six screens are displayed for Trip events Event 1 of channel 1 Trip Time...

Страница 29: ...he register of events can be reset by communications see 7 3 4 EVENTS 5 8 OTHER SCREENS While the CBS 400B is operating different screens can appear indicating Communication with the WGB of the channe...

Страница 30: ...menus Figure 27 3 s RS 485 communications Prealarm Channels Clock Password Installation Access password 3 s 3 s 3 s 3 s 3 s 3 s 3 s 3 s Figure 27 Setup menu 1 Menu visible with password locked Note In...

Страница 31: ...ee the icon and only the clock setup menu can be modified Some of the other menus will be visible and others not 6 1 RS 485 COMMUNICATIONS Figure 29 shows the initial screen of the RS 485 communicatio...

Страница 32: ...programming 6 1 3 DATA FORMAT This screen is used to configure the data format Use keys and to skip through the different options 8N1 8 data bits no parity 1 stop bit 8E1 8 data bits even parity 1 st...

Страница 33: ...ENT OF CHANNEL x This screen is used to configure the current at which the prealarm will be activated according to the of the trip current of channel x s relay Intercambio de canales Use keys and to m...

Страница 34: ...3s to validate the data and exit the programming 6 3 CHANNELS Figure 31 shows the initial screen of the channel switching menu Press the key for 3s to ac cess the menu Figure 31 Channel menu 6 3 1 CHA...

Страница 35: ...gure 33 shows the initial screen of the password configuration menu Press the key for 3s to access the menu Figure 33 Clock setup menu 6 5 1 PASSWORD This screen is used to configure the password to a...

Страница 36: ...Installation menu 6 6 1 SAVE INSTALLATION If the installation of the CBS 400B has been modified i e the WGB transformers have been replaced see 3 7 INSTALLATION CONNECTIONS the following screen appear...

Страница 37: ...we must use a smart RS 232 to RS 485 network protocol converter B A S RS 232 USB Ethernet Profibus PC RS 485 RS 485 RS 232 USB Ethernet Profibus A B GND A B S 24 23 22 24 23 22 Figure 35 RS 485 conne...

Страница 38: ...and time of the device Unit 32 283C 283D Device date Epoch format Serial no of the WGB registered in the installation s Channel 1 String 3458 345E Serial no of the WGB registered in the installation...

Страница 39: ...2 Firmware version revision Unit 16 FAB 1073 113B 1203 WGB status Unit 16 FAC 1074 113C 1204 0 6 see Table 15 WGB channel Unit 16 FAD 1075 113D 1205 1 channel 1 Programmed trip curve or de lay Unit 16...

Страница 40: ...ipped 1 Tripped Channel tripped due to leakage current bool 0003 002B 0053 007B Channel tripped due to error in the WGB bool 0004 002C 0054 007C Channel tripped due to test bool 0005 002D 0055 007D Ch...

Страница 41: ...4 Read the 8 Event registers simultaneously to consult the event s details Table 18 Modbus Memory Map Events Parameter Format Address Function Value No of events in channel 1 Unit 16 13BA 0x04 0 10 N...

Страница 42: ...h can be found in Table 20 and Table 21 Table 20 Modbus Memory Map Relay curve or delay table Relay curve or delay table Parameter Format Function Address Value Channel 1 Channel 2 Channel 3 Channel 4...

Страница 43: ...10E7 11AF 1277 0 5 Value 13 Unit 16 0x04 1020 10E8 11B0 1278 0 5 Value 14 Unit 16 0x04 1021 10E9 11B1 1279 0 5 Value 15 Unit 16 0x04 1022 10EA 11B2 127A 0 5 Value 16 Unit 16 0x04 1023 10EB 11B3 127B...

Страница 44: ...data range Default value Clock setup Unit 32 283C 283D Date and time are given in Epoch format 7 3 5 5 Password Table 25 Modbus Memory Map Password Password Configuration variable Format Address Vali...

Страница 45: ...imum voltage open contacts 230 V Maximum current 6 A Maximum switching power 1500 VA Electrical life 250V 5A 60x103 Cycles Mechanical life 10x106 Cycles Digital output Type Optoisolated Maximum voltag...

Страница 46: ...Flat Dimensions Figure 36 mm Weight 208 g Enclosure Self extinguishing V0 plastic Standards Low voltage switchgear Part 2 Automatic switch protection IEC 60947 2 M General safety requirements for res...

Страница 47: ...rating temperature 10 C 50 C Storage temperature 20 C 70 C Relative humidity without condensation 5 95 Maximum altitude 2000 m Thermical class 150 C Mechanical features WGB 35 WGB 55 WGB 80 WGB 110 Wi...

Страница 48: ...56 6 5 a e c 41 WGB xxx Figure 37 WGB dimensions Figure 38 WGB dimensions WGB dimensions a b c d e f WGB 35 80 97 61 5 35 5 44 5 54 WGB 55 98 5 118 72 55 5 52 5 81 5 WGB 80 123 5 140 81 5 80 5 65 101...

Страница 49: ...n contrary to the national electrical code or that surpasses the limits indicated in the technical and environmental features of this manual CIRCUTOR accepts no liability due to the possible damage to...

Страница 50: ...50 CBS 400B Instruction Manual 11 CE CERTIFICATE...

Страница 51: ...51 Instruction Manual CBS 400B...

Страница 52: ...52 CBS 400B Instruction Manual...

Страница 53: ...53 Instruction Manual CBS 400B ANNEX A DIRECT SETTINGS Password Trip current Delay and relay curve DIRECT SETTINGS 3s 3s N S 0 4 1 0 0 2 0 3 0 5 0 8 10 3s...

Страница 54: ...54 CBS 400B Instruction Manual ANNEX B SETUP MENU Baud rate Peripheral number Data format Password RS 485 COMMUNICATIONS PREALARM T1 3s MEASURE 3s 3s N N 3s 3s...

Страница 55: ...1 prealarm operation Channel 2 prealarm current Channel 2 prealarm operation Channel 3 prealarm current Channel 3 prealarm operation Channel 4 prealarm current Channel 4 prealarm operation PREALARM C...

Страница 56: ...56 CBS 400B Instruction Manual Channel switching Password CHANNELS CLOCK SETUP PASSWORD INSTALLATION MENU EXIT Year Month Day Hour Save installation 0 9 0 0 00 3s 3s 3s 3s 3s 3s 3s 3s 3s...

Страница 57: ...57 Instruction Manual CBS 400B...

Страница 58: ...CIRCUTOR SA Vial Sant Jordi s n 08232 Viladecavalls Barcelona Tel 34 93 745 29 00 Fax 34 93 745 29 14 www circutor es central circutor com...

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