351
AMC Series programmable intelligent meters
Installation and Operation Instruction V2.1
ACREL CO.,LTD
Page 1: ...351 AMC Series programmable intelligent meters Installation and Operation Instruction V2 1 ACREL CO LTD...
Page 2: ...rm by any means electronic mechanical photocopying recording or otherwise without prior permission of Acrel All rights reserved This company reserve power of revision of product specification describe...
Page 3: ...4 Terminals and wiring 6 4 5 Notice 9 5 Operating description 10 5 1 Key function description 10 5 2 Programming menu 10 5 3 Setting and use 12 5 4 View switching display and alarm status 22 6 Commun...
Page 4: ...AMC48L AI3 AMC48L AV3 None AMC72 AI AMC72 AV AMC72 AI3 AMC72 AV3 Current voltage measurement LED 72 Square 1 RS485 communication C 2 Analog output M 3 Alarm output J 4 Analog output RS485 communicatio...
Page 5: ...800 9600 19200 bps etc Alarm 1 channel passive relay contact capacity 3A 30VDC 3A 250VAC Used for high low unbalance alarm etc Analog DC4 20mA load 500 note Shielded wire is specially selected for the...
Page 6: ...ts 2 Take out the meter and the buckle 3 The meter is loaded into the mounting hole from the front as shown in Figure 4 4 Insert the buckle and fix the meter as shown in Figure 5 4 5 Shape Panel Housi...
Page 7: ...minals to meet the safety requirements of relevant electrical codes 4 4 1 Terminals and wiring Analog wiring 50 59 AO AO 50 51 52 59 AO1 COM5 AO2 AO3 Analog Output Switching input wiring 30 31 32 33 3...
Page 8: ...RS 485 wiring RS485 21 22 A B Power wiring L N FUSE Auxiliary Power L N 1 2 Voltage or current wiring Single phase L N I1 I1 Current input S1 S2 4 5 L N U1 UN FUSE 11 14 Voltage input L N U1 UN 11 14...
Page 9: ...FUSES 11 12 13 14 A B C N UA UB UC UN FUSES 11 12 13 14 A B C 3 phase 3 wire UA UB UB UC UC UA FUSES 11 12 12 13 13 11 A B C 3 phase 3 wire UA UB UB UC UC UA FUSES 11 12 12 13 13 11 A B C 3 phase 4 w...
Page 10: ...use external CT If the used CT connected with other meters the connection should be used in series It is recommended to use wiring board do not connected with CT directly in order to remove convenien...
Page 11: ...ogramming mode this key combination is used for the reduction of hundreds of digits Right enter In programming mode this key combination is used to increase the hundred digits Note When using the comb...
Page 12: ...2 2 4 4 8 9 6 19 2 38 4 Baud rate Example 9 6 means 9600bps None 2bit odd even Communication mode No parity check 2 bit stop bit odd parity check even parity check 1 2 3 Analog output selection 4 20m...
Page 13: ...SAVE YES page appears At this time you must press the Enter key to confirm otherwise the setting is invalid 5 3 1 How to enter the programming menu Single phase SET Display interface Use the left and...
Page 14: ...ameter after modifying one You can save all the parameters after modifying them as described above 5 3 3 How to modify the password backlight time etc Single phase Password setting Backlight setting W...
Page 15: ...and the backlight is turned off to extend the life of the backlight 5 3 4 How to modify the current rated value and current ratio Single phase Modify current rated value Modify current ratio Three ph...
Page 16: ...ro display The DC voltage meter is the same only one difference U P replaces A P When the zero shielding value is set to positive it means that if display value set value the display value is 0 Fig 6...
Page 17: ...l be H 1000 L 0 A P 0 So when the input is 37 5mV the display will be 500 1000 0 37 5 75 0 When the low point of the input is not 0 For example The input signal is 4 20mA and the display needs to be 0...
Page 18: ...Modify baud rate Modify mode Use the left and right key to modify the communication address Address range 1 247 Use the left and right key to modify the communication baud rate Use the left and right...
Page 19: ...he analog output is 20mA the corresponding electrical parameter is taken as the highest four digit integer the decimal point is ignored and the last bit is zero Same as Ao Hi Single phase Analog outpu...
Page 20: ...the left and right key to set the low value 5 3 8How to modify the alarm item set the alarm delay set the high and low alarm value and the unbalance alarm setting 1 way alarm is the same as 2 way alar...
Page 21: ...ow alarm value setting do not set minimum 0 Whether low alarm is allowed when the signal is 0 Lo on is enabled Lo of is forbidden Single phase Alarm selection Alarm delay time No action band setting H...
Page 22: ...owed when the signal is 0 Unbalanced alarm setting Low alarm setting High alarm setting No action band setting Note 1 No action band setting high alarm value setting and low alarm value setting corres...
Page 23: ...me single phase voltage meter View DI View DO AMC72 L AMC96 L Enter the password The liquid crystal LCD display meter has a switching input output indication under normal measuring condition without p...
Page 24: ...Protocol When Data frame reach terminal device it enter addressed device by a simple port this device remove Data frame envelope data head read data if there is no error executing task requested by da...
Page 25: ...le Due to electric noise and other interfere when one group of data is transmitting from one device to another device on the transmitting line some change may be produced The error check can enable th...
Page 26: ...8 Address Content Brief Explanation Brief Explanation Single phase Three phase 0000H Ua effective value Ua effective value Read Write R read W write The 002aH is partial writable the rest is read only...
Page 27: ...e Same as above 6 5 Communication application Actual example the whole way adopt format of below table data as Hex Addr Fun Data start Data of CRC16 reg Hi reg Lo reg Hi reg Lo Lo Hi 01H 03H 00H 00H 0...
Page 28: ...ay I 0 946 6 5 2 Write data Example3 Single phase switching output remote control control character 0012H Read in data frames 01 10 00 12 00 01 02 00 02 24 e3 DO1 closing 01 10 00 12 00 01 02 00 01 64...
Page 29: ...tage or current is incorrect Check the voltage current ratio Check voltage transformer current transformer is intact Communication failure Check whether the address baud rate check digit etc in the co...
