12/5/2014 5:00 PM | |
Posts: 23 Rating: (0) |
Hello..., Here i attached my simodrg drive backup i am using siemens 400 series PLC... i need to read speed and actual armature current and armature voltage in both profibus mode and analog output module in the drive .. i tnk i already setted all parmeters but i know very well i missed someofthe parameter i cant find out so i attached it please help me as soon as possible. Motor name plate details: power - 257 kw voltage - 435/650vdc\ Rpm - 585 / 2290 current - 650/535 Here i checked with clam meter the drive output current is 600a and voltage is 110v so my output power is 66kw but my customer wants to reduce the current value so i need to increase the voltage i dont tnk so we cant increase the drive output voltage but they argue to reduce the voltage so please sir help me i am in my deadline ......so plz.............. AttachmentUP_MOD_131014_COMPLE_D1.zip (222 Downloads) |
12/7/2014 9:11 AM | |
Posts: 23 Rating: (0) |
hi sir.., thankz for ur replay ... here we are using DC traction motor for steel plant , see parameter u734.2..,u734.3 i think this is the setting for status word reading through profibus and i need to know one thing P750,P755,P760 this is the setting for data reading through analog output module.....i check with clam meter it shows 600a but my panel display shows 300a the second analog output is parallelly connect with my panel disply and plc analog second input .....yesterday i read speed and voltage through profibus but its not match with analog reading is there any scalling is need to do after receiving the value becoz my current value shows 16xxx five digit value.... here we are using vacon drive also some of the application i can read easily all the datas but in siemens drive i am very confusing so plz look on the below attachment sir................ AttachmentSIMOREG_DC_MASTER_tmp.zip (214 Downloads) |
12/7/2014 2:38 PM | |
Joined: 8/25/2006 Last visit: 9/23/2024 Posts: 2209 Rating: (278) |
Hello. In the drive: 100%=16384dec=4000H If you mean actual current then 100%=16384dec=rated converter current (600A) If you mean actual voltage then 100%=16384dec=P078.001*3*√2/π Look also at themanual.
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12/8/2014 3:40 PM | |
Posts: 23 Rating: (0) |
Hello sir, i need ur support lot here...., 1.Here i check with multimeter,drive analog output gives only 5v when it run 600A,of view our panel and see the below attachment P755 is zero and i get 5v from drive analog output but when i read with profibus mode i get exactly 600A.. so i need to know how our drive second analog output shows armature current without any settings. in the parameter 755.. 2. and second one is, see P100-600A....and see parameter P171 and P172 previously it was hundred percentage so its shows 600A and 300A in the panel display(it give half value (5v) even when it run 600A my analog output is 0-10v....now i reduced 50% (P171&P172) and increase the speed reference (P401.1=50%) now armature current is 300A bcoz here i reduced the armature current (P171&P172) fifty percentage..so in that what we found the armature current alwaz 100% that means if we set 100%=600 ,50%=300 the armature output current is not decrease even if we increase the speed reference. i need to know two things why drive analog output gives 5v when output armature current is 600A i read through profibus correctly and how display also work without any setting in P755. and second thing is why armature output is alwaz give full value its not reduce single percentage even we increase the speed it gives full amps what we setted in the P171 and P172..... i search all posssibliteis i cant find where the mistake so please go through my backup and let me kow plz... regards, Srinivasan P AttachmentSIMOREG_DC_MASTER_tmp.zip (180 Downloads) |
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