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Message R9200 after motor burnt! help

Created by: chteng at: 7/6/2010 5:16 AM (13 Replies)

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7/6/2010 5:16 AM	Rate (0)
chteng Posts: 5 Rating: (0)	Help..... -i use Micromaster 440 tofor variable speedcontrol motor ( 1.5 kW). I experienced frequentmotor failure over the past 5 months. Following scenario observed for each failure: a)During each shutdown of motor, frequencydrop from 50 Hzto 0 Hz slowly( within6 seconds) until it stop. When the frequency reach20 Hz and below,Message R9200blinking on the panel. After several time ofmotor shutdown,the motor cant be started anymore.Rewinding required. b)When the motor being sent for rewinding, there is always single coil burnt. What could be the cause for this kind of failure?? Should we set the ramp up and ramp down time to 0?? Site checking is carried out, incoming power supply is stable. Please help....!! Thanks.
chteng Posts: 5 Rating: (0)
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7/6/2010 3:15 PM	Rate (0)
JensS Posts: 739 Rating: (55)	Hello, a) Message R9200 isn’t a MICROMASTER fault. It looks like a message of a plc. To see the MICROMASTER faults, look into r0947; for warnings refer to r2110 b) It looks like a problem in your producing process; I suggest contacting yourbusiness partner
JensS Posts: 739 Rating: (55)
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7/6/2010 4:19 PM	Rate (0)
Nokia Experienced Member Joined: 12/22/2007 Last visit: 2/27/2024 Posts: 52 Rating: (0)	please change new one micromaster.

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7/6/2010 5:21 PM	Rate (0)
Vithani Platinum Expert Joined: 7/8/2009 Last visit: 8/5/2024 Posts: 1976 Rating: (477)	You wrote that, your motor found one phase burnt... Which frame size you are using? If you not knowing, what is the rating of drive?? And please describe your whole Process in some more detail and specially about fault... Are you getting any fault on Display of drive?? Drive fault will start with F and Alarm with A (Like F001 or A501) Devesh
	I dont Like people driving Fast, thats the reason I overtake them ;)
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7/8/2010 12:36 PM	Rate (0)
chteng Posts: 5 Rating: (0)	Hi Jens, We are using 6SE6440 for 1.5 kW motor ( for dosing pump). We experienced blinking signal ofA 0922 when we need to shutdown the motor ( Signal appear when frequency drop till 30 then 20 then 0 Hz). After several time of shutting down, motor burnt with single coil. Message A 0922 stated that load missing. How can we trouble shoot? For dosing pump, we should select inverter application P0205 as 0 ( constant torque ) or 1 (variable torque) Current setting is '0', will this settin cause the above failing scenario? Thanks.
chteng Posts: 5 Rating: (0)
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7/8/2010 2:39 PM	Rate (0)
Vithani Platinum Expert Joined: 7/8/2009 Last visit: 8/5/2024 Posts: 1976 Rating: (477)	You are getting A0922. It means No LOAD... This alarm will flash if your actual current will be less that 3%(Factory Set). Now just a guess, Are you using any output contactor?? How you are controlling On and Off of the Inverter?? Devesh
	I dont Like people driving Fast, thats the reason I overtake them ;)
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7/8/2010 2:43 PM	Rate (0)
JensS Posts: 739 Rating: (55)	A0922 = No load applied to inverter see: P2179 Current limit for no load ident “Load missing” - It may be that the motor is not connected (load missing) or a phase could be missing. - If a motor setpoint cannot be entered and the current limit (P2179) is not exceeded, Alarm A0922 (no load applied) is issued when delay time (P2180) expires. This alarm occurs when a) the inverter isn’t well set up for the application b) a “wiring” mistake happens between inverter and motor set up of P0205 Inverter application which materials you are handling with the pump? is it possible that you get reward flow of your material? do you need to have the VT load of the inverter? if so, set: P0205 =1 VT.Characteristic P0500 = 1 Pumps and fans P1300 = 2 V/f with parabolic characteristic If not: I suggest using factory settings for P0205, P0500 and for P1300 = 1 V/f with FCC motor burnt with single coil do you mean, that one of the motor-windings is burned (defect)? If so, please control the wiring, contactors, etc. between inverter and motor (if a phase is missing A0902 can displayed)
JensS Posts: 739 Rating: (55)
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7/9/2010 5:27 AM	Rate (0)
chteng Posts: 5 Rating: (0)	Yes, output contactor is installed between vsd and motor. Will this cause any isue of burning to motor??
chteng Posts: 5 Rating: (0)
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7/9/2010 7:16 AM	Rate (0)
Vithani Platinum Expert Joined: 7/8/2009 Last visit: 8/5/2024 Posts: 1976 Rating: (477)	Well, It is not recommended to use output contactor while using VFD. In your case, you are shutting down motor directly. You are not allowing Drive to Stop Motor first, thats why it detects No Load.. If you want to use that contactor, either you should use OFF2 before operating that contactor or, operate contactor only after VFD stops.. Refer following FAQ for more... Can I switch the output of the drive to the motor on and off using a contactor or isolating switch? Best Regards, Devesh Vithani
	I dont Like people driving Fast, thats the reason I overtake them ;)
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7/9/2010 11:29 AM	Rate (0)
chteng Posts: 5 Rating: (0)	Yes, single coil of motor burnt. Is the alarm A0922 has any relation to this failure? I have 5 dosing pumps at site, pumping calcium Hydroxide 5%. Now 4 motors burnt over the past 6 months.
chteng Posts: 5 Rating: (0)
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