ACS355 HOIST APPLICATION PROBLEM

An ACS355 drive of model number ACS355-03E-15A6-4 is in hoist application purpose and the motor which is used, has 10.6A Load current.

The problem is, at the time of lifting the load it takes 12 A current with 128% Torque and shows the speed 60 RPM whether the reference RPM is 150. At that particular moment it shows OVER CURRENT warning and after that if the drive is able to take the load then the automatically the warning diappeares and takes 6.5 A current with 58% torque, otherwise it retains in that position with that 12A CURRENT WITH 128% torque.

In this problem if some parameterization is needed to overcome this problem then please help me. also i have attached the parameter backup, which i have modified at last.

 SM_HOIST_ICM2_ACS355.pdf


By BR on 4/28/2017 | Like (0) | Report

The load is constant which is 1 ton.


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BR   

asked 4 months ago
Closed



Best Answer

2

Hi

first, you can modify the parameter 20.03 from 11.7 A to the 15.6 A that the drive can give you. The limitation in parameter could give you the problem that you have descripted.

Hope this help you, let us know about the results

Flavio Mussolin   

answered 4 months ago


 


By BR on 4/28/2017 | Like (0) | Report

Thank you.
I will obviously give you the update.
One question is, is ACS355 is compatible for hoist application purpose?


By Flavio Mussolin on 4/28/2017 | Like (1) | Report

Hi BR
Do you have brake motor for the hoist?
It's possible to use ACS355, but generally I prefer to use ACS850 - ACS880 for lift and crane application, because these drives have DTC control and their can give you better performance when the speed is near to zero Hertz.
If you need one safety crane application, only ACS880 is reccomended from ABB


By BR on 4/28/2017 | Like (0) | Report

Yes, there has a brake motor. one relay output is also assigned for that purpose.
i will give you the update of that problem.


By BR on 4/28/2017 | Like (0) | Report

sorry, i have made a mistake, there has no brake motor, but some mechanical brake arrangement.


By Flavio Mussolin on 4/28/2017 | Like (1) | Report

Ok, otherwise I can not understand why you use 14.01 relay output as" MBRK"
Anyway, I wish you a good weekend


By BR on 4/28/2017 | Like (0) | Report

ok. so if i select the relay as a run and give some time delay of that relay, then it will work?


By BR on 5/3/2017 | Like (0) | Report

Hi,
i have done the parameter that was told. but the problem remain the same. if any other solution is there for this problem please help.


By Flavio Mussolin on 5/3/2017 | Like (0) | Report

Hi BR
I am sorry that the problem still is not solved. Could you describe the complete application to make a short valutation?
You've always had this problem since the lift has been built or only recently?


By BR on 5/4/2017 | Like (0) | Report

Hi,
Actually they are operating the hoist application motor by schneider make drive and there had no problem at all. But recently they want to try to operate the system by ABB drive. After commissioning, it was observed that when we stop the drive at the middle of its lifting situation and again give start command then a tendency of free fall was shown but to lift the weight (1 ton). same things happen at the down time also. 2 weeks ago it was again commissioned and operating properly. the parameter backup which i attached is the latest one. after 7 days it was showing the alarm over current, and even after changing the parameter 20.03 = 15.6 from 11.7 problem is not solved.


By Flavio Mussolin on 5/4/2017 | Like (1) | Report

Ok
You can try it with the following procedure: you must be sure that the ID run of the motor has been done correctly, this is to have the best performance of the inverter with the motor.
Use command 14.01 to control the brake that unlocks the load. You can give a delay on parameter 43.01 so that the brake opens when the drive is already running the engine, then with parameters 43.02 and 43.03 you can define the torque level for brake release. You will need to make some tests to find the best compromise, because this inverter does not have the DTC control that could allow you to have the rated torque at low speeds.For this reason in past post I wrote that I prefer ACS850 o ACS880 when the load is lifts or crane


Add New Comment


Answers

2

Hi

first, you can modify the parameter 20.03 from 11.7 A to the 15.6 A that the drive can give you. The limitation in parameter could give you the problem that you have descripted.

Hope this help you, let us know about the results

Flavio Mussolin   

answered 4 months ago


 


By BR on 4/28/2017 | Like (0) | Report

Thank you.
I will obviously give you the update.
One question is, is ACS355 is compatible for hoist application purpose?


By Flavio Mussolin on 4/28/2017 | Like (1) | Report

Hi BR
Do you have brake motor for the hoist?
It's possible to use ACS355, but generally I prefer to use ACS850 - ACS880 for lift and crane application, because these drives have DTC control and their can give you better performance when the speed is near to zero Hertz.
If you need one safety crane application, only ACS880 is reccomended from ABB


By BR on 4/28/2017 | Like (0) | Report

Yes, there has a brake motor. one relay output is also assigned for that purpose.
i will give you the update of that problem.


By BR on 4/28/2017 | Like (0) | Report

sorry, i have made a mistake, there has no brake motor, but some mechanical brake arrangement.


By Flavio Mussolin on 4/28/2017 | Like (1) | Report

Ok, otherwise I can not understand why you use 14.01 relay output as" MBRK"
Anyway, I wish you a good weekend


By BR on 4/28/2017 | Like (0) | Report

ok. so if i select the relay as a run and give some time delay of that relay, then it will work?


By BR on 5/3/2017 | Like (0) | Report

Hi,
i have done the parameter that was told. but the problem remain the same. if any other solution is there for this problem please help.


By Flavio Mussolin on 5/3/2017 | Like (0) | Report

Hi BR
I am sorry that the problem still is not solved. Could you describe the complete application to make a short valutation?
You've always had this problem since the lift has been built or only recently?


By BR on 5/4/2017 | Like (0) | Report

Hi,
Actually they are operating the hoist application motor by schneider make drive and there had no problem at all. But recently they want to try to operate the system by ABB drive. After commissioning, it was observed that when we stop the drive at the middle of its lifting situation and again give start command then a tendency of free fall was shown but to lift the weight (1 ton). same things happen at the down time also. 2 weeks ago it was again commissioned and operating properly. the parameter backup which i attached is the latest one. after 7 days it was showing the alarm over current, and even after changing the parameter 20.03 = 15.6 from 11.7 problem is not solved.


By Flavio Mussolin on 5/4/2017 | Like (1) | Report

Ok
You can try it with the following procedure: you must be sure that the ID run of the motor has been done correctly, this is to have the best performance of the inverter with the motor.
Use command 14.01 to control the brake that unlocks the load. You can give a delay on parameter 43.01 so that the brake opens when the drive is already running the engine, then with parameters 43.02 and 43.03 you can define the torque level for brake release. You will need to make some tests to find the best compromise, because this inverter does not have the DTC control that could allow you to have the rated torque at low speeds.For this reason in past post I wrote that I prefer ACS850 o ACS880 when the load is lifts or crane


Add New Comment



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