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Recent Posts

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21
Mitsubishi / Re: FR-F800 not running!
« Last post by Eng_Mq on August 29, 2019, 11:59:12 PM »
Hi,

Check parameter 79 it should be 1 or 0, Also if you connected with FR configurator in PC remove the connection
22
Mitsubishi / Mitsubish A800/F800 inverter built-in PLC
« Last post by KgSwat on August 29, 2019, 09:06:08 AM »
One of the good features in A800/F800 inverters in mitsubishi is the built-in PLC  :004: . you can do alot of stuff with it.
In one project, invisibly  :008: I could block the inverter operation after a validity date expiration to save my right in the
last payment   :045: .

Yesterday I received the final payment from the customer  :047: , so today I am going to release the lock. I didn't need any
external units, any wiring and connections or any such complicated additions, all from the same inverter unit  :dft003: .

I will be happy to share with this community the instruction manual for the built-in PLC with FR F800 inverter.

Download Link: https://dl.mitsubishielectric.com/dl/fa/document/manual/inv/ib0600492eng/ib0600492engd.pdf
23
Invertek / [Case Study] Invertek VFD with Cranes
« Last post by Ahmadjo on August 28, 2019, 11:57:16 PM »


The main hoist of a crane vessel capable of lifting more than 80 tonnes of load can now operate more precisely and accurately following the installation and commissioning of a heavy-duty Optidrive P2 variable frequency drive from Invertek Drives.

Nusa Maritime Pte has been upgrading the drives of the main hoists on a crane barge at Keppel Offshore and Marine’s shipyard in Singapore.

Replacing the existing variable frequency drives with a 160kW Invertek Optidrive P2 IP55 saw instant benefits in load capacity, precision control and protection from overloading.

Invertek Drives Singapore carried out the wiring modification for the panel in order to interface with existing crane control.

“The existing inverter on the floating crane had become faulty and we were approached to provide a solution using an Invertek VFD which has been proven in heavy duty and marine sector environments,” said Henry Beh of Invertek Drives Far East.

“The P2 was perfect due to its heavy-duty capacity. After installation we undertook a load test up to 90 tonnes and our clients were impressed with the immediate capability in smooth speed adjustment of the hoist motors which lift a range of load weights.”

The P2 provides 150% overload for 60 seconds as standard which ensures it is suitable for all heavy-duty applications. Combined with the IP55 enclosure, the drive

is capable of working in some of the harshest environmental conditions, including those in the marine sector.

Crane applications require high starting torque due to the heavy loads, with smooth motor operation throughout, including smooth start and stopping, and motor holding brake control.

Key benefits of the Optidrive P2 in such applications include dedicated hoist mode operation with motor holding brake control algorithm; up to 200% torque from zero speed and multiple preset speed or variable speed operation.

Henry added: “The installation and commissioning of the electric system on the vessel’s crane was enhanced through the use of the Optidrive P2 with greater precision as well as being much more accurate through the smooth control.”

The work included ensuring the commissioning passed Minister of Manpower approval for cranes and interfaced with the existing control system, alleviating the need for any other changes in the control process.

Source: https://www.invertekdrives.com/news/post/Precision-and-accuracy-of-floating-crane-hoist-improved-with-Optidrive-P2-variable-frequency-drive.aspx
24
General Discussion / Re: Nice YASKAWA Robot Sword :)
« Last post by SubartNajm on August 28, 2019, 11:37:53 PM »
What a samurai  :005:
25
General Discussion / Re: Nice YASKAWA Robot Sword :)
« Last post by AbdulAziz19 on August 28, 2019, 11:14:40 PM »
Nice battle eng. Ahmad  :011: :014: :037: :017:
26
General Discussion / Nice YASKAWA Robot Sword :)
« Last post by أحمد علي بك on August 28, 2019, 11:04:13 PM »
27
Mitsubishi / FR-F800 not running!
« Last post by KgSwat on August 27, 2019, 10:24:25 AM »
Hello my friends

iam facing a problem with a Mitsubishi inverter, the model is: FR-F840-00052-2-60

As per to the manual, pressing on "PU/EXT" button, the operation should change, the inverter
is not going to RUN mode, and the PU is not changing to PU mode!!

Can someone help?
28
Fans / Pumps / Compressors / ABB Energy Saving Calculator
« Last post by SKumaro on August 26, 2019, 09:14:22 AM »
Today I bring to you an interesting topic :dft008: , is helps you find estimations for how much energy saving you could make when changing to VFD  :54: :54: .

Weather it is a Fan, Pump or Compressor, just do the selections, and get the savings  :dft010:  :045: . The calculator is on the following link  :038: :

https://energysave.abb-drives.com/?_ga=2.244911493.1461192907.1566797008-965722179.1564304681#/main
29
LSIS / Re: M100 Fault
« Last post by أحمد علي بك on August 26, 2019, 08:18:26 AM »
Hi MacinesFab,

The "Hold" message is an error message from the IO CPU when the communication is disconnecting for 1~2 seconds.

I hope that answered the question.  :045:

Good Luck  :dft012:
30
Danfoss / What is VFD
« Last post by YassirWasfi on August 26, 2019, 12:05:50 AM »
This is a very good introdution by Danfoss about VFDs and benefits of VFDs.
 :dft003: :dft003: :045: :045: :048: :027: :027:
https://www.danfoss.com/en/about-danfoss/our-businesses/drives/what-is-a-variable-frequency-drive/
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