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Sinumerik 840C Error code 43 PLC-CPU not ready for operation

Created by: cliff-accu at: 7/13/2009 4:55 PM (25 Replies)

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12/8/2009 6:06 PM	Rate (0)
flroey1981 Posts: 1 Rating: (0)	Hi, Can anyone help... I have this alarm 43 . I have just changed the interphase and keyboard and still have the alarm? what else can it be? thanks chris
flroey1981 Posts: 1 Rating: (0)
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12/14/2009 9:01 PM	Rate (0)
nulizhang Platinum Expert Joined: 10/17/2007 Last visit: 1/13/2025 Posts: 4142 Rating: (361)	Hi, going to Diagonosis-->service display-->PLC service--> then check error code(cause of error). such as 6F, or 2A .... copy all numbers and post here. or you can check 840C Diagnosis Manual (Siemens DocOnWeb)
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3/16/2010 8:18 PM	Rate (0)
Bikeboy Posts: 3 Rating: (0)	Hello- I received the same error. 43 ORD1 PLC-CPU Not ready for operation I checked the fuse on the power supply and it was ok. I restored the data from the HD. No Go. The operator panel does not light at all. Which made me think it was a blown fuse. But nothing. PLC Code 006F 0400 0100 0100 Any suggestions? Thanks
Bikeboy Posts: 3 Rating: (0)	Last edited by: Bikeboy at: 3/16/2010 8:24 PM
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3/19/2010 7:42 PM	Rate (0)
nulizhang Platinum Expert Joined: 10/17/2007 Last visit: 1/13/2025 Posts: 4142 Rating: (361)	Bikeboy Hello- I received the same error. 43 ORD1 PLC-CPU Not ready for operation I checked the fuse on the power supply and it was ok. I restored the data from the HD. No Go. The operator panel does not light at all. Which made me think it was a blown fuse. But nothing. PLC Code 006F 0400 0100 0100 Any suggestions? Thanks ===================== I think you have a broken op panel .it has 3 led's red,yellow and green. it should at least some of them lit or your op panel power broken. code: 6f=I/O fault; 04=DMP;01=1st interface (or PLC cpu);01=1st line. it is normally MCP or Operators panel.
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3/24/2010 12:06 AM	Rate (0)
Bikeboy Posts: 3 Rating: (0)	The LED F is lit only (D1). Looks like the 24vdc power supply is working... Must be other problems... Can't figure it out>> Any thoughts? Mitch
Bikeboy Posts: 3 Rating: (0)	Last edited by: Bikeboy at: 4/3/2010 2:08 AM Last edited by: Bikeboy at: 3/24/2010 4:03 PM
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4/11/2011 10:53 PM	Rate (0)
petek13 Posts: 16 Rating: (0)	Hello to everyone, We have 840c and 135wb plc. I also have the problem with error code 43 and in PLC I get the folowing error code: 0002 0006 0072 3800 0000 What does this mean? And when i turn the machine on, the red led on the plc cpu blinks 7 times. Thanks for helping. Matej
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2/8/2012 1:21 AM	Rate (0)
Stevie Bramwell Posts: 17 Rating: (0)	Hi, I also have this error. The error code showing is 043C 0A00 3200 0000 Does anyone know what this code means? Thanks in advance. Stevie
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4/19/2012 6:09 AM	Rate (0)
gagandeep Posts: 1 Rating: (0)	Dear All, i am also facing the same problem of PLC-CPU not ready message alarm 43. PLC error number 00A0-0400-0E00-6400-0000 . Machine is in running condition and the alarm is coming frequently. Pls. help. gagan
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4/19/2012 10:19 AM	Rate (0)
OvidiuNastac Silver Member Joined: 1/29/2008 Last visit: 7/26/2022 Posts: 419 Rating: (19)	Hi You can try to increase the MD's 18170 (>40) and 18180 (>300). Good luck Nit

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10/22/2012 5:03 PM	Rate (1)
rivercitygabe Posts: 1 Rating: (1)	i have the exact same problem but the green, red, and yellow lights on the operating panel are on steady. but the machine control no lights at all i cant figure out what it is...
rivercitygabe Posts: 1 Rating: (1)
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