6RL SERIES OPERATION MANUAL
SECTION 6: FRONT PANEL OPERATION
Entire Contents Copyright
2018 by Adaptive Power Systems, Inc. (APS) • All Rights Reserved • No reproduction without written authorization from APS.
6RL Series Regenerative DC Load Operation Manual
Page 96 of 204
6.9.8
Trapezoidal function
The following parameters can be configured for a trapezoidal curve function:
Value
Range
Description
I(A), U(A)
0...(Nominal value - (Offs)) of U, I
A = Amplitude of the signal to be generated
I(Offs), U(Offs)
0...(Nominal value - (A)) of U, I
Offs = Offset, based on the foot of the trapezium
t1
0.1 ms...36000 s
Time for the positive slope of the trapezoidal wave signal
t2
0.1 ms...36000 s
Time for the top value of the trapezoidal wave signal
t3
0.1 ms...36000 s
Time for the negative slope of the trapezoidal wave signal.
t4
0.1 ms...36000 s
Time for the base value (offset) of the trapezoidal wave signal
Schematic Diagram:
Application and Result:
Here a trapezoidal signal can be applied to a set value of U
or I. The slopes of the trapezium can be varied by setting
different times for rise and fall.
The periodic duration and repetition frequency are the
result of four time elements. With suitable settings, the
trapezium can be deformed to a triangular or rectangular
wave. It has therefore universal use.
6.9.9
DIN 40839 Function
This function is based on the curve defined in DIN 40839 / EN ISO 7637 (test impulse 4), and
is only applicable to voltage. It replicates the progress of automobile battery voltage during
engine starting. The curve is divided into 5 sequences (see diagram below) which each have
the same parameters. The standard values from the DIN are set already as default values for
the five sequences.
The following parameters can be configured for the DIN40839 function:
Value
Range
Seq Description
Ustart
0...Nominal value of U
1-5
Start voltage of the ramp
Uend
0...Nominal value of U
1-5
End voltage of the ramp
Seq.time
0.1 ms...36000 s
1-5
Time of the ramp
Seq.cycles
∞ or 1...999
-
Number of repetitions of the entire curve
Time t1
0.1 ms...36000 s
-
Time after cycle before repetition (cycle <> 1)
Summary of Contents for 6RL Series
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