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Micromaster 420 Problem

Created by: Kriztof at: 10/5/2010 7:21 PM (4 Replies)

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10/5/2010 7:21 PM	Rate (0)
Kriztof Posts: 12 Rating: (0)	I purchased used Micromaster 420 6SE6420-2UC13-7AAO. Its supplied from 230 VAC single phase line but inverter doesn't work. Diagnostics LEDs don't light and BOP doesn't work at all. I attached Profibus module witch is supplied externally from 24 VDC and now BOP works. Starter software recognize inverter correctly I can also change parameters and upload/load configuration. There are two active alarms that I can't clear F0060 (internal communications failure/error) and A0503 (undervoltage). It looks like power failure. Do I need set some special parameters to supply inverter from single 230 VAC line (I only know about P0210) or inverter is broken?
Kriztof Posts: 12 Rating: (0)
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10/6/2010 9:10 AM	Rate (0)
JensS Posts: 739 Rating: (55)	6SE6420-2UC13-7AA0 = MICROMASTER 420 1/3AC200-240V +10/-10% 47-63HZ F0060 = missing 24V do you have 220V? = broken fuse, incorrect line connection ….. did you install the power supply properly? = Line to L1/L; N to L2/N see attachment Attachment 420_OPI_24523400_en_1006.pdf (486 Downloads)
JensS Posts: 739 Rating: (55)
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10/6/2010 4:50 PM	Rate (0)
Kriztof Posts: 12 Rating: (0)	JensS 6SE6420-2UC13-7AA0 = MICROMASTER 420 1/3AC200-240V +10/-10% 47-63HZ F0060 = missing 24V do you have 220V? = broken fuse, incorrect line connection ….. I have 230 VAC line and I supply inverter directly from wall socket. Voltage is for sure OK. It seems problem comes from 230VAC/24VDC circuit. JensS did you install the power supply properly? = Line to L1/L; N to L2/N Yes, I use L1, L2 connectors.
Kriztof Posts: 12 Rating: (0)
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10/8/2010 3:19 PM	Rate (0)
JensS Posts: 739 Rating: (55)	Hello , here are some more possibilities: (FAQ: http://support.automation.siemens.com/WW/view/en/8822493) A0503 = alarm, undervoltage The line supply voltage of the drive inverter is switched-out and the DP module(PROFIBUS module) is supplied through an external 24V. In this particular case, alarm message A0503 is output. This alarm message can be ignored. Normally, the electronics power supply is realized from the DC link of the driveinverter. The power supply is also sensed/measured via the DC link. When the drive inverter is powered-down, the electronics is supplied from theexternal 24V and the DC link is in a no-voltage condition. This is why A0503 isoutput. F0003 = undervoltage & F0060 = Asic time slice overflow The drive runs, the DP module (PROFIBUS module) is supplied via an external 24V supply,and the line supply (200 to 600 V AC) is disconnected. In this case, the drive is tripped with fault message F0003.
JensS Posts: 739 Rating: (55)
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10/9/2010 5:51 PM	Rate (0)
Kriztof Posts: 12 Rating: (0)	Dear JensS Thank you for your interest. "Normally, the electronics power supply is realized from the DC link of the drive inverter. When the drive inverter is powered-down ... DC link is in a no-voltage condition." "As a result of the missing line supply voltage, the control and power supply sections in the drive inverter cannot communicate with one another and F0060 is output instead of F0003." I think this confirms there is no internal 24VDC. So inverter is broken.
Kriztof Posts: 12 Rating: (0)
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