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Expressions for time stepping are invalid

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Hello

I keep getting the error "Expressions for time stepping are invalid" no matter how I try to change the information about the time steping. I am using the RF module, Time explicit

The expression I am using for the time steping is range(0,DT/24,5*DT)

What am I doing wrong?


1 Reply Last Post 26.03.2015, 17:07 GMT-4

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Posted: 10 years ago 26.03.2015, 17:07 GMT-4
Perhaps, DT has the wrong definition:
- or it is not time, [s]
- or DT is not Global Parameter
- or something else

In my models I have used, for example
In Global Definitions/Parameters
(Name)Dt (Expression)1e-7[s]
In Step1: Time Dependent/Times
range(0,0.1*Dt,Dt)

But I think the problem is in another place:
In Study 1/Solver Configurations/Solver 1/Time-Dependent Solver 1
- here check the section Time Stepping, namely, expressions for Initial Step and Maximum Step
Perhaps, DT has the wrong definition: - or it is not time, [s] - or DT is not Global Parameter - or something else In my models I have used, for example In Global Definitions/Parameters (Name)Dt (Expression)1e-7[s] In Step1: Time Dependent/Times range(0,0.1*Dt,Dt) But I think the problem is in another place: In Study 1/Solver Configurations/Solver 1/Time-Dependent Solver 1 - here check the section Time Stepping, namely, expressions for Initial Step and Maximum Step

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