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if OFF2 is low drive ready bit not high

Thread Starter: sehgal   Started: 6/7/2012 5:27 PM   Replies: 2

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  6/7/2012, 5:27 PM
Joined 5/21/2008
Last visit: 4/20/2013
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Dears,

I am using 6RA8075 in which i required to make the motor to go coasting immediately when on command is withdrawn, for that i made a logic ( when command is given it first energises the OFF2 bit & then after a on delay timer on/off1 command bit energises, after withdrawing the command it goes in OFF2), so far so good but

the real problem is with bit r899.7( drive ready) , this bit i have to include in interlock to command so that when drive in fault state the logic should not be able to give command
at all! ( but r899.7 shows ready only when OFF2 is high)
pl. suggect how to implement this

B/R to all
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  6/7/2012, 6:04 PM
Joined 6/4/2008
Last visit: 5/15/2013
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sehgal wrote:
Dears,

I am using 6RA8075 in which i required to make the motor to go coasting immediately when on command is withdrawn, for that i made a logic ( when command is given it first energises the OFF2 bit & then after a on delay timer on/off1 command bit energises, after withdrawing the command it goes in OFF2), so far so good but

the real problem is with bit r899.7( drive ready) , this bit i have to include in interlock to command so that when drive in fault state the logic should not be able to give command
at all! ( but r899.7 shows ready only when OFF2 is high)
pl. suggect how to implement this

Hi, to implement a Fault interlock, use the bit r2139.3 (Fault Present)

When OFF2 is High, this means there is NO OFF2 i.e. Fail Safe

Regards,
Graeme

There are 10 types of people . . .
Those who understand Binary, and those who don't.
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  6/10/2012, 12:42 PM
Joined 5/21/2008
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Thanks Graeme!Rnf:lblSmileyTooltip_ Rnf:lblSmileyTooltip_

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