© EA Elektro-Automatik in 2022, this information is subject to change without notice
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3.10.2.3 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).
3.10.2.4 Possible technical complications
Operation of switching mode power supplies as a voltage source can, when applying a function to the output voltage, lead to
damage of the output capacitors due to continuous charging/discharging which causes overheating.
3.10.3
Method of operation
In order to understand how the function generator works and how the value settings interact, the following should be noted:
The device always works with the three set values U, I and P, also in function generator mode.
The selected function can be used on one set value, U or I, the other two values are constant and have a limiting effect. Exam-
ple: a voltage of 100 V is set for the DC output, a load is connected and a sine wave function should work on the current with
an amplitude of 30 A and an offset of 80 A. The function generator is supposed to create a sine wave progression of current
between 50 A (min) and 110 A (max), which will result in an output power between 5000 W (min) and 11000 W (max).The
output power, however, is limited to its set value. If this was, for instance, 9000 W the current would be limited to 90 A and, if
clamped to an oscilloscope, it would be seen to be truncated at 90 A and never reach the peak of 110 A.
Master-slave systems have further characteristics which have to be considered:
At the end of the configuration of every standard function you are requested to set up global set values,
the so-called “U/I/P limits”. These limits are transferred to all slave units of master-slave systems. It’s
required to carefully configure them so the MS system can work as expected and the slaves wouldn’t
impact the function run in a negative way.
