Manual

© EA Elektro-Automatik in 2022, this information is subject to change without notice 6533200840_manual_elr_10000_2u_3kw_en_02
3.10 The function generator
3.10.1 Introduction
The built-in function generator (short: FG) is able to create various signal forms and apply these to the set value of either
voltage or current.
The standard functions are based on an arbitrary generator and directly accessible and congurable using manual control.
In remote control, the fully customizable arbitrary generator replicates these functions with sequence points containing 8
parameters each.
The following functions are retrievable, congurable and controllable:
Function Short description
Sine Sine wave generation with adjustable amplitude, offset and frequency
Triangle Triangular wave signal generation with adjustable amplitude, offset, rise and fall times
Rectangular Rectangular wave signal generation with adjustable amplitude, offset and duty cycle
Trapezoid Trapezoidal wave signal generation with adjustable amplitude, offset, rise time, pulse time, fall time, idle time
DIN 40839 Simulated automobile engine start curve according to DIN 40839 / EN ISO 7637, split into 5 curve sequences,
each with a start voltage, nal voltage and time
Arbitrary Generation of a process with up to 99 freely congurable curve points, each with a start and end value (AC/
DC), start and end frequency, phase angle and total duration
Ramp Generation of a linear rise or fall ramp with start and end values and time before and after the ramp
XY table XY generator, USB stick loadable current curve (table, CSV)
Battery test Battery charge and discharge test with constant or pulsed current, along with Ah, Wh and time counters
MPP tracking Simulation of the characteristic tracking behavior of solar inverters when seeking to nd the maximum
power point (MPP) when being connected to typical sources such as solar panels
3.10.2 General
3.10. 2 .1 Limitations
The function generator is not accessible, neither for manual access nor for remote control, if resistance mode (R mode, also
called UIR) is active.
3.10.2.2 Resolution
Amplitudes generated by the arbitrary generator have an effective resolution of approx. 52428 steps. If the amplitude is very
low and the time long, the device would generate less steps and set multiple identical values after another, generating a
staircase effect. It’s furthermore not possible to generate every possible combination of time and a varying amplitude (slope).
3.10.2.3 Minimum slope / maximum ramp time
Removed since release of KE 3.02 and DR 1.0.2.20 (newer production dates from 03/2022) and 1.0.9 (older production dates
until approx. 01/2022.
Ramps or mixed AC/DC functions where the DC offset varies from start to end don’t have a minimum slope anymore. The
time of a sequence point can now use the full 36000 seconds.