Recent content by fiaz1404

There is a fault 7583 on Abb drive ACS-880. Aux code of fault is 0000 2E0B.DC fuses have been checked according to recommendation of manual, Fuses are OK. What are other possible causes of this fault. Fault description is attached

Thanks to LioneIHutz and all participants in this discussion. I did auto-tuning and didn't face problem since more than a month.

Automatic cell bypass feature is optional in perfect harmony drive; this feature is not available in our installation. When this problem rises, there is no any alarm or fault message appears on the drive HMI

Thanks all for your valuable inputs This drive is receiving one fixed analogue input as speed reference from central control station which is only changeable manually by operator. There is no any PID control involve in operating station. There are two types of internal PID control loops...

Dear itsmoked, 1. It is Induced draft fan which is responsible for flow of necessary gases from kiln to exhaust fan in cement plant. 2. I will check if drive is running a PID 3. if drive is running on PID,What are the possible causes of PID loop out of tune?

We have ID fan equipped with 2000kw, 207 amp motor which is controlled by Siemens perfect harmony drive. Normal operational current is 110 amps and speed is 810rpm. We are facing a problem that drive amperes and speed suddenly start to vary from 75 amps to 160amps while speed varies between 800...

Three ABB ACS850 drives installed in our facility for different applications started to trip with over current(different occasions). After ruling out the possibilities of over current due to load issues, defective motor and cables, we found that value of measuring parameter 01.07(DC-voltage) is...

1: I think it is due to mixing of carbon brush grade; below I will try to create a scenario. In case if we replace some worn brushes with grade other than original. Suppose new brushes have high conductivity comparing to original brushes, then these new brushes will carry more current than...

We have 6300KW, 13800V, 1194 rpm Slip ring SIEMENS MOTOR used for cement grinding ball mill. Recently while mill was in operation we noticed that current started to oscillate from 280 Amp to 320 Amp. We also observed the voltage oscillation ranging from 13.6 KV & 14 KV. Current is absolutely...

Try to start the motor in coupled condition with load

Sorry for delay in reply, Waross, Bearing was completely filled with grease when it was replaced last month, yesterday it was first time greased after bearing replacement. Electricpete, Motor rpm: 895 Motor weight 24000 kg Grease type shell alvania rl3 Freq...

Hello, We have 3500kw motor, NDE bearing#NU1048. Today motor NDE bearing was lubricated with approximately 40 grams grease. Type of grease was as per motor manufacturer recommendation. After twenty minutes of greasing, smoke was observed from bearing and motor was stopped immediately. We...

thanks to all experts for their value able replies. fiaz ahmed

waross, thanks so much for explaining well to solve the issue mechanically, again thanks. i am still stuck on v/f ratio increase because of current decrease in dol motors when supply voltage increas in plant, this decrease is upto limited increase in supply voltage. when voltage increase...

before posting my question on this fourm i have idea to increase voltage or decrease the frequency in motor parameters but now I will try combination of three things 1. increase of voltage or decrease freq of motor parameters in drive. 2. increase the rated current up to 105 %. 3. increase the...