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INSTALLATION MANUAL

ProSMS 8

7.3

Operation principles

Instantaneous registers value

•

A reading of the instantaneous input register gives the average value over the last 4s

Integrated (average) value register

•

Reading of the integrated (average) value registers reports a true average value from the last

master read to the current reading. Even the smallest changes in Current or Voltage down to

15ms are sampled and integrated into the reported average.

•

Reading time interval can be set to 15 mins or even more without fear of the information loss.

Содержание ProSMS 8

Страница 1: ...Installation Manual ProSMS 8 Protection and Monitoring Solution for PV Systems www raycap com INSTALLATION MANUAL ProSMS 8 ...

Страница 2: ......

Страница 3: ...erequisites 5 3 3 Installation tools 5 4 1 Device overview 6 5 1 Installation 7 5 2 Device setting 7 5 3 Cabling recommendations 8 5 4 Digital Input Output 9 6 1 MODBUS interface 10 6 2 MODBUS typical communication connections 11 6 3 ProSMS settings 13 6 4 MODBUS registers 15 7 1 Device operation 20 7 2 Energy measurement per string 20 7 3 Operation principles 21 7 4 Min Max measurement 22 7 5 Sur...

Страница 4: ...lopment and improvement of the documentation Raycap has made all reasonable efforts to ensure that the instructions contained in this document are adequate and free of material errors and omissions Raycap will if deemed necessary explain issues which may not be covered by this document The contents of this document are subject to revision without notice due to continued progress in methodology des...

Страница 5: ... persons Disconnect before installing removing carrying out maintenance or repair Direct current marking DC The CE marking is the legal required labeling for several EU Directives of the European Union This CE marking shows that the product complies with all the relevant European Legal Directives Indicates important information 3 1 Package contents 1 ProSMS 8 unit 3 2 Prerequisites This document d...

Страница 6: ...r Negative current flow indication Integrated surge event counter User configurable relay output for general remote control of auxiliary equipment Built in communication diagnostic registers per MODBUS standard These features assist PV system operators to better understand and respond to field maintenance needs thereby resulting in reduced operating expense and potential downtime Fig 4 1 Device ov...

Страница 7: ...ating per IEC60529 5 2 Device setting Before powering device for the first time set device address and communication options as per the ProSMS settings tables on page 13 No reboot or removing applying power is necessary for changes in settings or address to take effect ProSMS has an advanced built in mechanism that recognizes settings change and sets internal parameters to match the settings immed...

Страница 8: ...without ferrules is required Cables with lower cross sectional area may be used for installations where less than 20A per string can be expected String voltage measurement connections 1000VDC At least 1mm tinned double insulated fine stranded cable with ferrules is required MODBUS GND A B Shielded twisted pair cable designed for RS485 interfacing is required Cable should have at least two twisted ...

Страница 9: ...ary inputs are read from the Modbus input register 00052 see page 15 The ProSMS also provides an optional output control via the SPDT relay contacts These contacts can be used for a variety of purposes such as the control of a safety disconnect switch or the signal to a PLC or other relay contactor The output is controlled by writing to the Modbus holding register 00000 see page 16 Relay output te...

Страница 10: ...signals Connect both wires of the remaining twisted pair to GND MODBUS Terminal If a cable has more than two twisted pairs connect all unused pairs to GND MODBUS terminals at each ProSMS unit For optimal data communication do not leave these floating The last unit in the chain must be terminated with a 120 ohm resistor GND Modbus wires Data signal common potential should be grounded once at the ma...

Страница 11: ...rminal to the ProSMS does not have to be the same as the main communication cable and can be of a smaller cross section for example 0 2mm2 but still needs to be RS485 certified twisted pair shielded cable The third solution with external terminals is to wire both RS485 connections from ProSMS to the external terminal Fig 6 5 so no Stub forms in the communication bus but care has to be taken to use...

Страница 12: ... www raycap com 6 2 MODBUS typical communication connections continued Fig 6 4 MODBUS cabling connection to ProSMS via intermediate connection terminal in combiner box enclosure Fig 6 5 MODBUS cabling connection to ProSMS via intermediate connection terminal in combiner box enclosure No Stub variant ...

Страница 13: ...ress 2 1 1 0 0 0 0 0 0 Slave address 3 0 0 1 0 0 0 0 0 Slave address 4 1 0 1 0 0 0 0 0 Slave address 5 1 1 0 0 1 1 1 1 Slave address 243 0 0 1 0 1 1 1 1 Slave address 244 1 0 1 0 1 1 1 1 Slave address 245 0 1 1 0 1 1 1 1 Slave address 246 1 1 1 0 1 1 1 1 Slave address 247 DIP Switch Position 1 2 3 Meaning Baud Rate 0 0 0 2400 bps 1 0 0 4800 bps 0 1 0 9600 bps 1 1 0 19200 bps 0 0 1 38400 bps factor...

Страница 14: ...the maximum time allowed between two received character bytes before the whole received packed is out of specification and considered bad t3 5 is 3 5x the character time at given baud rate and is used for end of message detection When relaxed timing is enabled by DIP switch ProSMS uses this additional timing factor located in RELAXED_TIMING register to extend t1 5 and t3 5 timing limits Settings l...

Страница 15: ...32000 32000 mA Current string 7 R CURRENT_STR08 0039 INT16 32000 32000 mA Current string 8 R CURRENT_STR09 0040 INT16 32000 32000 mA Current string 9 R CURRENT_STR10 0041 INT16 32000 32000 mA Current string 10 R CURRENT_STR11 0042 INT16 32000 32000 mA Current string 11 R CURRENT_STR12 0043 INT16 32000 32000 mA Current string 12 R CURRENT_STR13 0044 INT16 32000 32000 mA Current string 13 R CURRENT_...

Страница 16: ...current string 15 R CURRENT_MIN_STR16 0089 INT16 32000 32000 mA Minimum current string 16 R CURRENT_MAX_STR01 0090 INT16 32000 32000 mA Maxmimum current string 1 R CURRENT_MAX_STR02 0091 INT16 32000 32000 mA Maxmimum current string 2 R CURRENT_MAX_STR03 0092 INT16 32000 32000 mA Maxmimum current string 3 R CURRENT_MAX_STR04 0093 INT16 32000 32000 mA Maxmimum current string 4 R CURRENT_MAX_STR05 00...

Страница 17: ...e PC Linux based Master units that do not meet required timing the Relaxed Timing Mode can be used In this way ProSMS will allow the Master unit a greater byte to byte transmit delay and time to transmit complete data before flagging it as bad The Relaxed Timing mode is enabled by setting DIP switch position 6 to ON When this switch is in the OFF position timing factor 1 is used independent of wha...

Страница 18: ...e Master of at least one of the averaging registers This command is intended to allow precise comparison of the measured average values between multiple ProSMS units following a multicast write of this command to all units on the bus 12 0x0C This command clears the Min Max registers After execution ProSMS starts creating new minimum and maximum values It is not necessary to clear the registers dur...

Страница 19: ...g broadcast messages that the remote device has processed since last power up every morning last clearing of this counters or after a remote ProSMS restart 15 0x0F Quantity of messages addressed to the ProSMS for which it has returned no response neither a normal response nor an exception response since last power up every morning last clearing of this counters or after a remote ProSMS restart 16 ...

Страница 20: ...ion Sub Function Data CRC Master Query HEX 05 08 000B 0000 904D Slave Response HEX 05 08 000B 00C8 91DB CAUTION VOLTAGE DANGER WARNING NOTICE CAUTION VOLTAGE DANGER WARNING NOTICE CAUTION VOLTAGE DANGER WARNING NOTICE 7 1 Device operation When there is sufficient solar panel illumination to produce at least 90V system voltage ProSMS will self power and begin to operate Start of operation is signal...

Страница 21: ...ter gives the average value over the last 4s Integrated average value register Reading of the integrated average value registers reports a true average value from the last master read to the current reading Even the smallest changes in Current or Voltage down to 15ms are sampled and integrated into the reported average Reading time interval can be set to 15 mins or even more without fear of the in...

Страница 22: ...connections This can be achieved by calculating difference between Min values among nearby Strings Where one string is shown to have greater difference it may indicate a possible problem with the terminal connections 7 5 Surge counter The ProSMS has a built in surge counter which is capable of detecting and counting direct and indirect surges to the panels string cables or cabling to the central i...

Страница 23: ...idity 10 95 non condensing Pollution degree For use in pollution degree 2 environment Max altitude rating 2000m Max heat dissipation on all channels 240A 10W I O interfaces Digital inputs Two potential free contact closure inputs internally pulled to 5V Relay output SPDT relay maximum operating voltage 250VAC 0 5A at 125VAC 2A at 30VDC LED status Green for power yellow for communication red for er...

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