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MM420 Error Code

12/3/2012 5:05 PM	Rate (0)
Dhiyia Posts: 56 Rating: (1)	Dear experts Our system / machine has MM420 but from time to time the BOP of the drive is showing error code F0003 without clear reason ... I already checked the line supply voltage & it is within the permissible range ... So please advise … Thank u …
Dhiyia Posts: 56 Rating: (1)
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12/3/2012 9:08 PM	Rate (0)
Ayman Elotaify Diamond Expert Joined: 5/28/2008 Last visit: 1/14/2026 Posts: 4522 Rating: (843)	Hello, Check whether the supply voltageis within the limits indicated on therating plate. Check the supply is not subject totemporary failures or voltagereductions. Hope this helps.
	Ayman Elotaify
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12/4/2012 8:01 AM	Rate (0)
Dhiyia Posts: 56 Rating: (1)	Dear Ayman Thank u for your reply … I'malready checked your suggested points & it is OK … Please consider this error is appeared suddenly & from time to time & it is very difficult to monitor the line supply voltage at this moment … Please advice … Thank u
Dhiyia Posts: 56 Rating: (1)
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12/4/2012 8:05 AM	Rate (0)
Ayman Elotaify Diamond Expert Joined: 5/28/2008 Last visit: 1/14/2026 Posts: 4522 Rating: (843)	Hello, May be the proble is in mains. If there is temperary under voltage failure happen, it will trigger this fault.
	Ayman Elotaify
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12/8/2012 12:35 PM	Rate (0)
Tractor Gold Expert Joined: 3/27/2008 Last visit: 1/18/2026 Posts: 1236 Rating: (149)	If the supply is ok the D C link caps may be damaged. Caps can be damaged by high ambient temperatures.
	Tractor
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12/11/2012 7:51 PM	Rate (0)
KonradR Posts: 97 Rating: (3)	hi, if at the first stage of your inverter protection is overload replace it.
KonradR Posts: 97 Rating: (3)
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