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MM 420 error - drive is not ready state

1/13/2011 12:18 PM	Rate (0)
Mr.Doubt Posts: 7 Rating: (0)	Hello Sir, In my MM420 green LED is flashing after 0.3s and Red twinkling approx. 1s. But when i use AOP that time it shows STOPPED and when i put P0003=3 that time it not showing all parameter which it should be show in P0003=3 mode. I am not able to understand what is the error code and problem. plz give me solution. Thanking you
Mr.Doubt Posts: 7 Rating: (0)
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1/16/2011 11:45 PM	Rate (0)
Graeme Platinum Expert Joined: 6/4/2008 Last visit: 11/25/2025 Posts: 1521 Rating: (327)	Hi, is it possible that somebody has activated the the parameter lock, see the attached pages, P0011 - Lock P0012 - Key P0013 - List of 20 parameters that end user can access Using the AOP, you should be able to access the fault diagnostics directly. Regards, Graeme Attachment Pages from Parameter List.pdf (280 Downloads)

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1/17/2011 5:59 AM	Rate (0)
Vithani Platinum Expert Joined: 7/8/2009 Last visit: 6/7/2025 Posts: 1977 Rating: (479)	I want to add something to Graeme's answer.. Also have a look to Parameter P004. It should be 0 for visible of all parameters Rgds, Devesh
	I dont Like people driving Fast, thats the reason I overtake them ;)
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11/5/2011 12:37 PM	Rate (0)
Saurabh_Gupta Posts: 2 Rating: (0)	Dear Sir, I am having the same problem with my MM440. Checked all the connections. But problem not solved. Please help...
Saurabh_Gupta Posts: 2 Rating: (0)
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11/7/2011 3:01 PM	Rate (0)
JensS Posts: 739 Rating: (55)	Drive is not in ready state (start inhibit) "OFF" commands have priority over "ON" commands. However, the converter requires a "Defined OFF command" which is defined only over OFF1 (normal ON / OFF). If an OFF2 or OFF3 is activated without OFF1, there is a "start inhibit" for "ON" (canceling of OFF2/3). Attachment Pages from 440_OPI_24294529_en_1006.pdf (294 Downloads)
JensS Posts: 739 Rating: (55)	Last edited by: JensS at: 11/7/2011 3:03 PM
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11/8/2011 5:38 AM	Rate (0)
Saurabh_Gupta Posts: 2 Rating: (0)	I already went through the above Troubleshooting page in MM440 Manual, and concluded that - my situations is ( on the flshing of the LEDs) - "Drive is not in ready state". I checked all the incoming control supply, allare ok. Besides, nobody changed the Drive Parameters as it is always locked. Problem camesuddenly while in operation... Please mention about theother possible reasons for the same fault... Thanking you in advance...
Saurabh_Gupta Posts: 2 Rating: (0)
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11/8/2011 3:43 PM	Rate (0)
JensS Posts: 739 Rating: (55)	two possibilities: 1. one of DIN is parameterised to OFF2 / OFF3 (p0701 – p0709 = 3/4)– attention negative logic. 2. the I/O-board is def.
JensS Posts: 739 Rating: (55)
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