Mitsubishi Service & Repair Forum

I have a Mitsubishi lathe model M-TC8A serial TC8A-005. I believe one of the soft keys on the controll is sticking. I have removed both the small board and large board and cannot find anything wrong with them. I am pretty sure that one is sticking because I can here the beep and all my lights flash on and off on the controll. Is there a way to test these boards? Operator Board unit MH402A-1 serial 8911007. I am not sure whick numbers on the boards are part numbers.Thanks,Tim Van Bruggen, ownerCAM Specialties, LLC

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β€” Posted by Tim Van Bruggen on 2011-04-05

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Recent 107 Comments

#Mitsubishi by Manuel Jimenez Garcia on 2008-05-15 02:17
their is an error on our mitsubishi melservo-sa-r the error is alarm 52. pls reply us. thanks.

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#Mitsubishi by SLANINA on 2010-11-18 01:17
The Mitsubishi MDS-A-V2-3510 Servo Drive/spindle amplifier unit is down. Needs immediate attention. Please follow up during the day. - Night shift maintenance crew.

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#Mitsubishi by gilliland on 2014-08-01 00:00
Hi there, I'm interested in purchasing a Mitsubishi MDS-A-BT-6 unit. I wanted to inquire about pricing and availability as I'm looking to source one quickly. Thank you!

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#Mitsubishi by Tim Van Bruggen on 2011-04-05 14:05
I have a Mitsubishi lathe model M-TC8A serial TC8A-005. I believe one of the soft keys on the controll is sticking. I have removed both the small board and large board and cannot find anything wrong with them. I am pretty sure that one is sticking because I can here the beep and all my lights flash …Purchase or Repair: Ticket Image...
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#Mitsubishi by Langhirt on 2022-10-12 00:00
Could you provide further details regarding the malfunction of the Mitsubishi fr-e520-7-5k-na unit?

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#Mitsubishi Electric by Darrell lamme on 2010-03-22 22:51
the Mitsubishi Electric BD625A887G52 KON-128H power supply unit went down mid-shift. Needs attention ASAP!

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#Mitsubishi by Mehmet KARA on 2007-06-24 02:40
When I turn on the uniformity machinery, al32 alarm appears suddenly on mrh350an servo driver.Please help me. What does it mean \"al32\"

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#Mitsubishi by zhangmenglong on 2010-01-21 04:25
Looking for repair for Mitsubishi MDS-A-V2-3510 Servo Drive/Spindle Amplifier - experiencing erratic movements and abnormal noises during operation. Need assistance ASAP to ensure operations remain uninterrupted.

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Please provide details on the availability of support or replacement parts for the Mitsubishi MDS-A-V2-3510 Servo Drive/spindle amplifier. We are in need of a replacement or repair option for this older unit. Thank you.

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#Mitsubishi by Mark Ivess on 2025-05-17 11:38
Looking for someone to repair my Mitsubishi FR-Z320-11K-AL inverter. It's not responding and needs immediate attention. Thank you.

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#Mitsubishi by SADI on 2019-06-29 04:04
Our Mitsubishi FR-E720S-11 SC-EC industrial inverter unit is showing errors and not functioning properly. We need urgent repair service to get it up and running again. Please provide availability for a technician to come to our facility. Thank you.

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#Mitsubishi by St on 2016-07-09 00:56
The Mitsubishi FR-A024-2.2KP is not functioning properly. Please have it checked by maintenance.

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#Mitsubishi by Lon on 2010-04-12 10:16
I need assistance with the Mitsubishi MDS-A-V2-3510 Servo Drive/Spindle Amplifier unit. It caused downtime. What happened? When did it occur? Waiting for a quick answer before the next shift.

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#Mitsubishi by sonnico elsisura on 2006-12-05 17:52
their is an error on our mitsubishi melservo-sa-r the error is alarm 52. pls reply us. thanks.

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#Mitsubishi by Phil Hibdon on 2025-04-15 06:47
The Mitsubishi 501W000 drive unit is malfunctioning, causing a complete halt in production. Urgent repairs are needed to ensure minimal downtime and resume operations swiftly.

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#Mitsubishi by archie reyes on 2009-05-31 15:23
we have servo amplifier j2s 350 but we have no servo motor so can u help pls. and also ask the alarm 16 how to reset thank you and God bless you

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#Mitsubishi by Morandi on 2025-06-02 08:43
The Mitsubishi FR-A240E-11K-05 Inverter is malfunctioning, causing a slowdown in production. Immediate repair and attention are required to restore the line to full operation.

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#Mitsubishi by ALAN BUTTIGIEG on 2024-11-22 02:21
One of the Mitsubishi QM30DY-H transistor modules failed - need a replacement ASAP!

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#Mitsubishi by eugene a riotte on 2022-09-20 00:00
Mitsubishi MC116 circuit board issue, unit not powering on. Need repair service ASAP.

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#Mitsubishi by Morne Maree on 2025-05-26 16:36
The Mitsubishi BY171E475G51 control board failed on Machine #3. Need replacement ASAP to prevent further downtime.

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#Mitsubishi by maintenance dept. on 2010-10-15 20:40
The Mitsubishi MR-SA-33T Melservo-SA unit is not working.

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#Mitsubishi by Ika on 2010-09-19 11:17
Hello, we have a Mitsubishi MR-SA-33T Melservo-SA Servo Drive that recently stopped working. We are looking for repair information or a replacement. Would you be able to assist us with this issue? Thank you.

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#Mitsubishi by MICHAEL BV. SANCHEZ on 2006-06-19 05:44
mitsubishi mc-70

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#Mitsubishi by Lluis j Jaimes Delgado on 2017-03-27 14:00
The Mitsubishi FR-F740-S185K-CHT inverter drive just failed, need immediate attention. No operations until fixed.

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#Mitsubishi by Phanom on 2008-01-31 09:13
I HOPE THATE YOU HELP US TO SOLV THES PROPLEM IN MELSERVO MODEL MR-SA502WHEN POWER ON THE ALARM COD AL24 IS DISPLAY THANK YOU FOR YOUR SUPPORT

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#Mitsubishi Okk Hm-40 by Ben Cooper on 2023-05-17 00:00
The Mitsubishi Okk HM-40 is not functioning properly.

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#Mitsubishi by Nino Yanchapaxi on 2021-03-21 09:15
The unit connected with the Mitsubishi Q170CDCBL3M cable for the A30CD-PCF SSCNET interface board is behaving unusually.

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#Mitsubishi by Mr. Surya Agussatria on 2021-07-19 03:58
Mitsubishi FR-E540-5.5K-CHT inverter displaying "Overcurrent Fault" error code.

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#Mitsubishi by Negron on 2005-09-15 00:00
Hi there, I am currently assisting an employee with a malfunction on a Mitsubishi MR-J2-100A system. The issue is unclear, and we are in need of repair information to identify the problem and find a replacement part. Can you please provide us with detailed repair instructions or suggest a suitable r…Purchase or Repair: Ticket Image...
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#Mitsubishi Electric by aji on 2010-07-01 06:57
Machine is not powering up.

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#Mitsubishi by samir patel on 2022-02-02 03:00
The Mitsubishi ACL022-S input reactor inverter for the 2.2K single-phase inverter 200V caused downtime on . Seeking clarification before the next shift.

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#Mitsubishi Okk Hm40 by DAN on 2010-05-15 15:45
: Our industrial unit, a large-scale packaging facility, has been experiencing a consistent issue with the conveyor system. The belt constantly breaks down, causing significant delays in product packaging and resulting in lost revenue. This leads to increased labor costs as we're forced to manually …Purchase or Repair: Ticket Image...
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#Mitsubishi by R.Baskaran on 2009-08-19 19:31
Dear Sir, In MR-J2S-70A servo drivedisplay showing AL - - ,Kindly help us to solve this problemRegardsR.Baskaran

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#Mitsubishi by Boros on 2010-11-04 23:44
The Mitsubishi MDS-A-V2-3510 Servo Drive/spindle amplifier unit is not working.

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#Mitsubishi by Bhogal on 2024-11-09 11:05
The Mitsubishi HF-SP102B Servo Drive unit malfunctioned today, causing unexpected downtime. The issue occurred during the morning shift. Could you provide guidance on troubleshooting and resolving this problem before the next shift begins?

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#Mitsubishi by Md. Abdullah Khan on 2010-03-21 03:42
Hello, we need repair info for a Mitsubishi MDS-A-V2-3510 Servo Drive/spindle amplifier. It stopped working and we require a replacement. Can you provide repair assistance quickly for this model? Thank you.

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#Mitsubishi by Mike Stalzer on 2016-07-23 00:00
Based on my previous experience, the MITSUBISHI PD21B CNC module might be experiencing intermittent power loss resulting in frequent system freezing during operation. This could indicate a potential issue with the power supply or internal connections. Further inspection by a qualified technician is …Purchase or Repair: Ticket Image...
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#Mitsubishi by Luciano da silva gradim on 2025-06-12 01:12
The Mitsubishi inverter FR-U120-N1-5K-UF is displaying error code E22. Machine is not responding to commands and shows "OC" on the display. Need urgent assistance to troubleshoot and fix the issue to resume production.

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#Mitsubishi by mittal on 2024-05-28 03:52
The Mitsubishi FR-SF-4-26KP-T AC Spindle Controller is not functioning normally. It is exhibiting unusual behavior and not working as expected. Please look into this issue to ensure the unit is operating correctly.

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#Mitsubishi by Ted Acker on 2019-04-21 07:03
The Mitsubishi HF-SP352 3.5kW Servo Drive experienced a malfunction, causing downtime during the last shift. It is crucial to resolve this issue

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#Mitsubishi by Jeff Osborn on 2025-01-20 02:44
The Mitsubishi FR-D720-2.2K inverter unit is not functioning properly. Please inspect and troubleshoot the issue at your earliest convenience.

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#Mitsubishi by SHAIKH on 2025-05-24 21:12
the Mitsubishi MDS-A-SP-150 spindle drive unit went down mid-shift last night. Needs attention ASAP. Cheers.

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#Mitsubishi by DITMER on 2010-01-29 20:19
We experienced downtime due to an issue with the Mitsubishi MDS-A-V2-3510 Servo Drive/Spindle Amplifier. Can you please provide some guidance on what might have caused this and when it occurred? Appreciate your

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#Mitsubishi Electric by ALEXIS PARRA on 2010-04-27 03:06
I have a Mitsubishi Electric BD625A887G52 KON-128H power supply unit that needs repair. It is currently not functioning and I need someone skilled in industrial unit repairs to address the issue

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#Mitsubishi Electric by Keyes on 2010-11-13 22:08
The Mitsubishi Electric BD625A887G52 KON-128H power supply unit is not working according to the maintenance team. Please investigate further.

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#Mitsubishi by Dale on 2010-08-21 00:30
Hey, the Mitsubishi MR-SA-33T Melservo-SA drive unit is down. Needs attention ASAP. Hope you can check it out in the morning.

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#Mitsubishi by KOSTAS on 2010-10-04 16:55
Could you please provide detailed information on troubleshooting and repairing a Mitsubishi MR-SA-33T Melservo-SA Servo Drive? My client is experiencing some issues with it. Thank you.

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#Mitsubishi by Ben Tudor on 2023-10-22 16:28
Mitsubishi Inverter IssueMessageHi there, I was informed that the Mitsubishi FR-E520S-1.5K-EC 1.5kW inverter is not working properly. Kindly assist with troubleshooting or repairs. Thank you.

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#Mitsubishi by M.Kaviani nezhad on 2018-08-09 17:16
Hello, Can you please provide more information regarding troubleshooting and potential repair options for a Mitsubishi A1SJ71AP21 Data Link Module? Thank you.

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#Mitsubishi Electric by Steven Baeza on 2010-11-17 20:17
Can you confirm if the Mitsubishi Electric BD625A887G52 KON-128H power supply unit is still supported, and if replacement parts are available? Thank you.

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