Question about Inverter Siemens Micromaster 420 Ac 6se6420-2ud22-2bao

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I cannot change parameters of this drive(Siemens Micromaster 420 6SE6420-2UD22-2BA).

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A while from when you asked the question but how you are trying to change the parameters? Through the BOP or software......?
Are you unable to change all or just some of the params?
Use the manual to check your access level in P0003.

Posted on May 19, 2014

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Posted on Jan 02, 2017

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SOURCE: my name is rall i have a siemens micromaster ac

jst chk out the connection of the plc and find that the resistence of 500 ohms linked with 10v which converts 10v to 4-20ma is working if it is then it will work or check the drive's connection n parameters of P1300 & communication parameters

Posted on Feb 23, 2010

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Micromaster 440, a few seconds after i power up, F0022 appears


This is most likely a fault with the IGBT even if it meters out correctly.
They can be replaced but the cause cause of the fault in the first place may still be present and might damage it again.
Occasionally there are further issues from faults like this so I would give some thought to doing a service exchange with a repair company.

Jan 21, 2014 | Inverter Siemens Micromaster 440

1 Answer

I like to program it


Programing inverters properly is not a simple task especially when working with the BOP.
The Siemens software - Drive Monitor etc - is much advised!

Mar 29, 2013 | Inverter Siemens Micromaster 420 Ac ...

1 Answer

Micromaster 440 alaram F0022


Likely to be IGBT fault. Unless its a large drive I would service exchange it or bin it. Not worth the hassle.

May 14, 2012 | Inverter Siemens Micromaster 440

1 Answer

Actually i'm new in drives, i want to know that whats the difference between micromaster 420,430,440.


If you google and download "Siemens Catalog DA 51.2" it should give you your answers.
More info is here also - http://support.automation.siemens.com

Feb 11, 2011 | Inverter Siemens Micromaster 420 Ac ...

1 Answer

My name is rall i have a siemens micromaster ac drive .37kw single phase and it working with one siemens plc s7 ,plc send analoge signal (4-20ma) to it for running but it dosent run. but in local mode its...


jst chk out the connection of the plc and find that the resistence of 500 ohms linked with 10v which converts 10v to 4-20ma is working if it is then it will work or check the drive's connection n parameters of P1300 & communication parameters

Dec 13, 2009 | Inverter Siemens Micromaster 440

2 Answers

When I power up the micromaster 440 i get a screen that shows -----, What does this mean?


may be the BOP is not correctly connected
or the supply provided for 2phase has to be interchanged

Oct 20, 2009 | Inverter Siemens Micromaster 440

1 Answer

I have a 15kw motor driven off a siemens micromaster 440. I cannot get the motor to run in delta. I have to run it in star. I have similar drives on site and these motors are connected in delta. what...


Why do you want to run the motor in the delta configuration? The VFD will change the speed to anything you want to do. The delta and Wye connections are normally used to change the speed of a motor. That's what the VFD is for...??

Sep 28, 2009 | Inverter Siemens Micromaster 440

2 Answers

How to get a siemens micromaster 440 up and running


Hello Stephen The first thing you have to do is make sure that the motor is connected for 220 volt three phase How do you know? your motor must have this connection info on the name plate It must show 220v Delta connection and 380 or 400 v star connection. connect your motor in Delta ie the motor connection links are connected from U 1 to V2, U1 to W2 and V1 to U2. Ok Now for the restof it You have asmall book that came with the inverter so go to page 9 and you will see the drawing for mm440 at the bottom you will see the connection for the speed pot. which is 1,2,3,4, wire in as shown make sure the wiping connection is in 3..now wire in a switch across 9 which is the common and 5 this starts and runs the inverter when you open the switch the inverter will ramp down and stop.... IF YOU look at page 8 it shows how delta and star is connected at the motor..... now go to page12 for this you must have the power on to the inverter.. as you enter the parameters they come up in sequence as you enter the info...on par 700 put in 2 also at 1000 put in 2 set p1080 at 0.0...p 1082 at 50 P3900 at1 This should get you up and going
Sean Reihill

Mar 05, 2009 | Inverter Siemens Micromaster 440

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