DRT-301C User manual - Shanghai ULI CNC Co., Ltd.
Contents
1. specifications Bus type RS485 protocol MODBUS RTU with 16 bit CRC baud rate 1200 default 2400 4800 9600 19200 o0n request Address range 0 255 user settable Bus Loading 256 meters per bus Rage 1200m 1 6 Far Infrared communication specifications infrared wavelengths 900 1000nm Shanghai fengyilong electronic CO LTD www china meters com Email fyl china meters com 021 62270763 62270963 forin DRT 301C User Manual baud rate 1200bps default 9600bps option communication distance 5m communication angle 15 15 protocol MODBUS RTU with 16 bit CRC 1 7 Basic errors With balanced loads 0 05Ib Cos 1 1 5 0 110 Cos 0 5L 1 5 Cos 0 8C 1 5 0 1Ib Imax Cos 1 1 0 0 2Ib Imax Coso 0 5L 1 0 6050 0 8C 1 0 With single phase load 0 1Ib Imax Cos 1 2 0 0 2Ib Imax 6050 0 5L 2 0 1 8 Description A Front panel B Cover C Base D Security hasp Material Front panel PC inflammable retarding Cover ABS inflammable retarding Base ABS inflammable retarding Shanghai fengyilong electronic CO LTD www china meters com Email fyl china meters com 021 62270763 62270963 forin DRT 301C User Manual D 1 9 Dimensions Height 130 mm Width 126 mm Depth 65 mm Weight 0 7 Kg net 1 10 Installation A CAUTION Turn off all the power before working on it Always use a properly rated voltage sensing device to confirm that power is off A WARNING Installat2. 0 C 50 C Storage temperature 30 C 70 C Shanghai fengyilong electronic CO LTD www china meters com Email fyl china meters com 021 62270763 62270963 LH International standard IEC 62053 21 Accuracy class 1 Protection against penetration of dust and water IP51 Insulating encased meter of protective class II 1 4 Meter specifications Meter type DRT 301C LCD display Nominal voltage 230 400V AC 3 Operational voltage 161 279 300 520V AC 3 Insulation capabilities AC voltage withstand 2KV for 1 minute Impulse voltage withstand 6KV 1 2uS waveform Basic current Ib CT type 1 5A Directly connect 10A Maximum rated current Imax CT type 6A Directly connect 100A Operational current range 0 4 Ib Imax Over current withstand 30Imax for 0 01s Operational frequency range 50Hz 10 Internal power consumption lt 2W 10VA per phase Test output flash rate PULSE LED CT type 1600imp kWh Directly connect 400imp kWh Test pulse output rate pins 8 amp 9 CT type 1600imp kWh Directly connect 400imp kWh CT Changing Ratio 27 ratios to choose Power supply indicator Phase A B amp C LED Meter is connected and A B C voltage power on Consumption indicator PULSE amp SO LED Flashing at load running Communication indicator Flashing at communication running Data communication port RS485 and far infrared Data save The data can be stored more than 20 years when power off 1 5 RS485 communication
3. 63 forlong china meters com www china metes com RoHS COMPLIANT A 2002 95 EC Shanghai fengyilong electronic CO LTD www china meters com Forlong 2008 Email fyl china meters com 021 62270763 62270963
4. al regulations This meter can be installed indoor directly or in a meter box which is waterproof outdoor subject to local codes and regulations To prevent tampering secure the meter with a padlock or a similar device The meter has to be installed against a wall which is fire resistant The meter has to be installed in a good ventilated and dry place The meter has to be installed in a protection box when placed in dangerous or dusty environment The meter can be installed and used after being tested and sealed with a letter press printing The meter can be installed on a 35mm DIN rail or direct on a meter board with screws The meter should be installed in an available height so that it is easy to read When the meter is installed in an area with frequent surges due to e g thunderstorms welding machines inverters etc protect the meter with Surge Protection Devices lt After finishing installation the meter must be sealed to prevent tampering Connection of the wires should be done in accordance with the underneath connection diagram A Direct connect type rir 485B se 18 17 16 15 14 13 12 11 10 9 8 1 2 3 4 5 6 7 A B _ 6 N gt gt 1 2 Ia IN OUT 3 4 Ib IN OUT 5 6 Ic IN OUT 7 Neutral wire 8 9 Test pulse output contact Shanghai fengyilong electronic CO LTD www china meters com Email fyl china meters com 021 62270763 62270963 forin DRT 301C User Manual 10 11 RS485 communication co
5. forion DRT 301C User Manual DRT 301C Three phase four wire DIN rail energy meter with MODBUS protocol Six modular 1 1 Safety instructions 1 2 Foreword 1 3 Performance criteria 1 4 Meter specification 1 5 RS485 communication specification 1 6 Far Infrared communication specification 1 7 Basic errors 1 8 Description 1 9 Dimensions 1 10 Installation 1 11 Operating 1 12 CT Changing Ratio setting 1 13 Troubleshooting 1 14 Technical support User manual Shanghai fengyilong electronic CO LTD www china meters com Email fyl china meters com 021 62270763 62270963 forlon DRT 301C User Manual 1 1 Safety instructions Information for Your Own Safety This manual does not contain all of the safety measures operating the equipment module device for different conditions and requirements However it does contain information which you must know for your own safety and to avoid damages These information are highlighted by a warning triangle indicating the degree of potential danger Caution This means hazard of electric shock and failure to take the necessary safety Warning This means that failure to observe the instruction can result in death serious injury or considerable material damage A precautions will result in death serious injury or considerable material damage Qualified personnel Operation of the equipment module device described in this manual may only be pe
6. he seals and open the front cover as this might influence the function of the meter and will cause no warranty Do not drop or allow strong physical impact on the meter as the high precisely components inside may be damaged 4 4444 Shanghai fengyilong electronic CO LTD www china meters com Email fyl china meters com 021 62270763 62270963 forin DRT 301C User Manual Disclaimer We have checked the contents of this publication and every effort has been made to ensure that the descriptions are as accurate as possible However deviations from the description cannot be completely ruled out so that no liability can be accepted for any errors contained in the information given The data in this manual is checked regularly and the necessary corrections are included in subsequent editions We are grateful for any improvements that you suggest Subject to technical modifications without notice Copyright Copyright Forlong July 2008 All rights Reserved It is prohibited to pass on or copy this document or to use or disclose its contents without our express permission Any duplication is a violation of the law and subject to criminal and civil penalties All rights reserved particularly in the event of a patent award or utility model registration 1 2 Foreword Thank you for purchasing the Forlong DRT301C DIN rail three phase four wire energy meter with modbus protocol Output is LCD displayed based on kWh and the data can be trans
7. i fengyilong electronic CO LTD www china meters com Email fyl china meters com 021 62270763 62270963 forion DRT 301C User Manual Problem Check Solution Is the meter ID Check and use the correct the correct Meter ID After the meter finish the production the Meter ID defaults to O 67H 69H FFH Is the Shorten the communication No communication Of RS485 wire data with the meter communication distance too long Is there too many meters connected to RS485 main wire Is the RS485 port connection correct Is the connection Maybe there is a fault in the inside circuit distance between the reading equipment outside and the meter Keep sure it is not more than 1200m The equipment to connection with RS485 main wire is not more than 256pcs The correct connection is the A signal wire of RS485 main wire to the meter terminal 11 the B signal wire of RS485 main wire to the meter terminal 10 Please connect with technical supporter to replace this meter No communication of the infrared wireless data with the meter Is the meter ID correct Is the communication distance too long Is the communication protocol correct Maybe there is a fault in the inside circuit Check and use the correct the Meter ID After the meter finish the production the Meter ID defaults to O 67H 69H FFH Shorten the communication distance between the reading equipment outside and the meter suggest no
8. ion should be performed by qualified personnel familiar with applicable codes and regulations Use isolated tools to install the meter Fuse or thermal cut off or single pole circuit breaker can t be fitted on the supply line and not the neutral line Shanghai fengyilong electronic CO LTD www china meters com Email fyl china meters com 021 62270763 62270963 forion LH DRT 301C User Manual We recommend that the connecting wire which is used to connect the meter to the outside circuit should be sized according to local codes and regulations for the amp city of the circuit breaker or over current device used in the circuit An external switch or a circuit breaker should be installed on the inlet wire which will be used as a disconnection device for the meter And there it is recommended that the switch or circuit breaker is near the meter so that it is more convenience for the operator The switch or circuit breaker should comply with the specifications of the buildings electrical design and all local regulations An external fuse or thermal cut off which will be used as a over current protection device for the meter must be installed on the supply side wire and it is recommended that the over current protection device is near the meter so that it is more convenience for the operator The over current protection device should comply with the specifications of the buildings electrical design and all loc
9. ntact 8 CT connect type Uc T h so m N 4858 4858 gt 18 17 16 15 14 13 12 11 10 9 8 1 2 3 4 5 6 7 la Ib Ic 1 2 Ia IN OUT 3 4 Ib IN OUT 5 6 Ic IN OUT 18 16 14 12 Phase A B C N 8 9 Test pulse output contact 10 11 RS485 communication contact 1 11 Operating Consumption indication On the DRT 301C S front panel there are four LED in which three LED are for three phase voltage and another one for impulse The constant of the impulse is shown on the nameplate of the meter Reading the meter The DRT 301C energy meter is equipped with 6 1 or 5 2 LCD display which is used as recording consumption and can t be reset to zero The number system is based on units of 10 And unit is kWh Another way through RS485 and PC software or HHU hand held unit unit can read power consumption Pulse output DRT 301C DIN rail energy meter is equipped with a pulse output which is fully separated from the inside circuit That generates pulses in proportion to the measured energy They are test pulse output pins 8 amp 9 Usually the test pulse output is used as testing accuracy or reading purpose in close quarters The test pulse output is a polarity dependant passive transistor output requiring an external voltage source for correct operation For this external voltage source the voltage Ui should be 5 27V DC and the maximum input current Imax should be 27mA DC To connect the impulse output connect 5 27V DC to c
10. onnector 9 anode and the signal wire S to connector 8 cathode The meter pulses is indicated on the front panel Communication port DRT301 C has equipped a far infrared port and a RS485 port we can program the meter s operation data or reading via these 2 ports The communication protocol conforms MODBUS RTU Shanghai fengyilong electronic CO LTD www china meters com Email fyl china meters com 021 62270763 62270963 forion protocol DRT 301C User Manual Far infrared communication port The far infrared communication port is on the left of LCD screen It is infrared wireless communication port The TP800 hand held programmer can directly communicate the data between the meter and this port The data transmission speed is 1200bps default 9600 option The communication distance is not less than 5m Rs485 output RS485 communication port is between the meter terminal 11 and 10 It is a synchronization wire port Installing a software in PC via RS485 adapter Connecting the terminal 11 and 10 PC can communicate with the meter immediately 1 12 CT Changing Ratio setting How to set the CT Changing Ratio of the CT Meter Please set the CT Changing Ratio after installation otherwise the CT Meter will count the second energy consumption by default Ratio 5 5 Procedures of setting the CT Changing Ratio of the CT Meter 1 wiring the meter correctly according to Diagram 3 and 4 2 The meter will do auto detect first when the p
11. ower is on and the LCD shows 88888 8 8 3 Press the PRG button after auto detect then you can set the CT changing ratio The LCD shows 4 Press the SEL button and there are 27 Ratios 5 5 to 7500 5 you can choose from 5 After choosing one CT Changing Ratio press the PRG button to confirm and the ration setting is complete The LCD display END 6 the meter will back to normal working condition if there is no press on the PRG button in 30s interval and the LCD shows the first energy consumption and CT Changing Ratio alternately NOTE In the sense of security setting the CT changing ratio can only be done in 30s after power on Any related operation will be null after 30s 1 13 Troubleshooting A CAUTION During reparation and maintenance do not touch the meters connecting clamps directly with your bare hands with metal blank wire or other material as you will have the chance of an electricity shock and a possible chance for health damage Turn off and lock out all power supplying the energy meter and the equipment to which it is installed before opening the protection cover to prevent the hazard of an electric shock Shanghai fengyilong electronic CO LTD www china meters com Email fyl china meters com 021 62270763 62270963 DRT 301C User Manual A WARNING Maintenance or reparation should be performed by qualified personnel familiar with applicable codes and regulation
12. ported by isolated RS485 The meter is provided with a non volatile memory system that ensures that the readings are not lost or altered when power off The forlong DRT301C energy meter is the most advanced type electronic kWh meter available at the market With the Forlong product range we have introduced a large scale of energy meters on the market suitable for 110V AC to 400V AC 50 or 60Hz Besides the normal energy meters we also developed our own pre paid meters with chip card chip card re loaders and a complete PC management control system For more information on other product please contact our sales department at Ixy688 vip sina com or fyl china meters com Although we produce the Forlong DRT301C meter according to IEC 62053 21 and our quality inspection is very accurate there might always be a possibility that your product shows a fault or failure for which we do apologize Under normal conditions your product should give you years of benefit and pleasure In case there is a problem with the energy meter you should contact your dealer immediately All energy meters are sealed with a special seal Once this seal is broken there is no possibility to claim for warranty Therefore NEVER open an energy meter or break the seal of the energy meter The warranty time is 6 months after installation and only valid for construction faults 1 3 Performance criteria Operating humidity lt 75 Storage humidity lt 95 Operating temperature 1
13. rformed by qualified personnel Qualified personnel in this manual means person who are authorized to commission start up ground and label devices systems and circuits according to safety and Regulatory standards Use for the intended purpose The equipment device module may only be used for the application specified in the catalogue and the user manual and only be connected with devices and components recommended and approved by Forlong Proper handling The prerequisites for perfect reliable operation of the product are proper transport proper storage installation and proper operation and maintenance When operating electrical equipment parts of this equipment automatically carry dangerous voltages Improper handling can therefore result in serious injuries or material damage Use only isulating tools Do not connect while circuit is live hot Place the meter only in dry surroundings Do not mount the meter in an explosive area or expose the meter to dust mildew and insects Make sure the wires are suitable for the maximum current of this meter Make sure the AC wires are connected correctly before activating the current voltage to the meter Do not touch the meter connecting clamps directly with metal blank wire and your bare hands as you may get electrical shock Make sure the protection cover is placed after installation Installation maintenance and reparation should only be done by qualified personnel Never break t
14. s Use insulated tools to maintain or repair the meter Make sure the protection cover is in place after maintenance or reparation Problem Check Solution No light for the Power supply indicator Phase A B amp CLED Is AC power supply connected to the meter Is the A B Cand N connecting correct Is the terminals 1 2 3 4 5 6 and 7 connecting correct Maybe there is a fault in the inside circuit Check switch or circuit breaker and fuse or thermal cut off Re install terminal screws on the A B C and N Make sure all screws are fixed Than there should be a 230V 50Hz AC voltage between the terminal screws on the N and Aor B or C when power supply is input Reinstall terminal screws on the 1 2 3 4 5 6 and 7 Make sure all screws are fixed Than there should be a 230V 50Hz AC voltage between the terminal screws on the 7 and 1 or 3 or 5 when power supply is input Please contact your technical supporter to replace this meter No light for the communication indicator COM LED Is there a power supply inside the meter Does any equipment outside communicate with the meter Maybe there is a fault in the inside circuit Check that the power supply Only when the communication between the meter s infrared port Or the RS485 port and the equipment outside The LED will blink Please contact your technical supporter to replace this meter Shangha
15. t more than 5m Please contact the technical support to get the meter communication protocol Please contact the technical supporter to replace this meter Shanghai fengyilong electronic CO LTD www china meters com Email fyl china meters com 021 62270763 62270963 forion DRT 301C User Manual Problem Check Solution Is the load Only when load is running RED running LED is burning continue the LCD The LCD energy register can t run Is the operating power too low Maybe there is a fault in the inside circuit energy register will run If the operating power is too low the spacing interval of the pulses will take some more time This is why it seems like the LCD energy register can t run Please contact your technical supporter to replace this meter No pulse output Is DC power supply connected to the meter Is the connecting correct Maybe there is a fault in the inside circuit Check the external voltage source Ui is 5 27V DC Check correct connecting Connect 5 27V DC to connector 3 anode and the signal wire S to connector 2 cathode Please contact your technical supporter to replace this meter Pulse output rate wrong Maybe there is a fault in the inside circuit Please connect with technical supporter to replace this meter 1 14 Technical support Any questions please contact TEL FAX Email 021 62270763 021 622705
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