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EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
ELR 9000 Series
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
1.9.6.4 Resolution of the displayed values
In the display, set values can be adjusted in variable increments. The number of decimal places depends on the
device model. The values have 3 to 5 digits. Actual and set values always have the same number of digits.
Adjustment resolution and number of digits of set values in the display:
Voltage,
OVP, UVD, OVD,
U-min, U-max
Current,
OCP, UCD, OCD,
I-min, I-max
Power,
OPP, OPD,
P-max
Resistance,
R-max
Nominal
Digits
Min.
Incre-
ment
Nominal
Digits
Min.
Incre-
ment
Nominal
Digits
Min.
Incre-
ment
Nominal
Digits
Min. In-
crement
80 V
4 0.01 V
22 A / 30 A
4 0.01 A
normal
operation
4 1 W
4 Ω / 6 Ω
5
0.0001 Ω
250 V
5 0.01 V
44 A / 60 A
4 0.01 A
12 Ω
5
0.001 Ω
500 V
4 0.1 V
66 A / 70 A
4 0.01 A
master-slave
<100kW
4 0.01 kW
40 Ω / 60 Ω
5
0.001 Ω
750 V
4 0.1 V
90 A
4 0.01 A
120 Ω / 160 Ω
5
0.01 Ω
1000 V
5 0.1 V
140 A / 170 A 4 0.1 A
master-slave
>100kW
4 0.1 kW
240 Ω
5
0.01 Ω
1500 V
5 0.1 V
210 A
4 0.1 A
360 Ω / 480 Ω
5
0.01 Ω
340 A / 510 A 4 0.1 A
550 Ω / 950 Ω
5
0.01 Ω
1100 Ω
5
0.1 Ω
1450 Ω
5
0.1 Ω
In manual operation every set value can be set in the increments given above. In this case
the actual input values set by the device will lie within percentage tolerances as shown in the
technical data sheets. These will influence the actual values.
1.9.6.5 USB-Port (Front side)
The frontal USB port, located to the right of the rotary knobs, is intended for the connection of standard USB flash
drives (flash drive). This can be used for:
•
Up or down loading from sequences for the arbitrary and UI-IU function generator
•
Updating HMI firmware (new languages, functions)
USB flash drives must be
FAT32
formatted and have a
maximum capacity of 32GB
. All supported files must
be held in a designated folder in the root path of the USB drive in order to be found. This folder must be named
HMI_FILES
, such that a PC would recognise the path G:\HMI_FILES if the drive were to be assigned the letter G.
The control panel of the electronic load can read the following file types from a flash drive:
*.bin
(folder with two files)
Firmware updates only for the control panel. The folder name format is given,
like 96230058_FW-BE1_V114.bin, and listed in short form as FW-BE1_V114.
bin. Other folders won’t be recognised or listed.
wave_u<arbitrary_text>.csv
wave_i<arbitrary_text>.csv
Function generator for an arbitrary function on voltage (U) or current (I)
The name must begin with
wave_u / wave_i
, the rest is user defined.
iu<arbitrary_text>.csv
IU table for the XY function generator.
The name must begin with
iu
, the rest can be user defined.
ui<arbitrary_text>.csv
UI table for the XY function generator.
The name must begin
with ui
, the rest can be user defined.
