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ABB NPCU-01 Drive accessories

¥668.00

Part Number:NPCU-01

NPCU-01 If there are quality issues, you can help repair them

If there is any need, please contact us and we will reply to you as soon as possible

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Whatsapp:+86 15359293870
WeChat:+86 18106937731
                E-mail:geabbdcs@gmail.com
Contacts:kelly CHEN

Description

It is possible to hold the speed reference at zero at start before the brake has opened. With time, or

time interrupted by limit switch “open”. This function prevents competition between the motor and

the brake as well as it reduces current/torque peaks.

A slow brake will cause wear of its own, bad regulation and high current/torque peaks.

An optimal setting is found during Start Up by studying Speed reference, Speed feedback and Ac

tual current at the same time with the monitor Tool.

The Compensation for slow brake opening shall be considered and adjusted prior to increasing the

monitor time for tachometer / encoder failure, parameter 10.15. If no influence is noted, check if the

designer has forgotten to activate the function with parameter 08.21.

Drive optimisation is normally only done for larger drives. Motors with shaft height from 400 mm and

larger together with the mechanical drive train should be treated with respect, and the experienced

site engineer has to find out the best settings for smooth electrical and mechanical performance.

The mentioned could also be valid for smaller motors.

Modify the current gain 11.03, normal value = 10,000, by making it double, half etc. to find a better

operation point. If it is found that it is stable for lower gain, but not for higher, lower the gain as

much as possible without getting a slower response on speed change. In this situation you should

once more try to increase the speed regulator gain; note that this might be an iterative process.

Opening the Special Parameter View Special all parameters of Design, Start Up and Special Views become

visible.

A special selection of the Special functions parameters that must be set during start up, i. e. not possible to

fix during design phase is presented below (this selection is not possible to get from the PC Tool).

Most times the Special functions parameters are not touched at all during the start up.

 

Details: If you need an urgent delivery order, please feel free to contact us, and we will do our best to meet your needs.
Price issue: If you find that other suppliers offer a cheaper price for the same product, we are also willing to provide you with a reference price and give you further discounts.
Contact Us:+86 18106937731
Whatapp:+86 15359293870
Email: geabbdcs@gmail.com / 2872270648@qq.com
Contact Person: Chen

 

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