User Manual

Page 24
ELR 9000 Series
www.elektroautomatik.de
[e-mail]
EA Elektro-Automatik GmbH
Helmholtzstr. 31-33 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
1.10.6.3 Rotary knobs
As long as the device is in manual operation the two rotary knobs are used to adjust set values as well as
setting the parameters in the pages SETTINGS and MENU. For a detailed description of the individual functions
see section “3.3 Manual operation” on page 37. Both rotary knobs have an additional push function whereby the
decimal position of the value to be set is moved. In this way, for example, the set value current for a device with
nominal 510A can be adjusted in increments of 10A or 0.1A. (also see „1.10.6.2 Pushbuttons“ on page 23)
1.10.6.4 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 4 or 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.
Incre-
ment
80V 4 0.01V 22A / 30A 4 0.01A 3.5kW 3 10W 4Ω / 6Ω 4 0.001Ω
250V 5 0.01V 44A / 60A 4 0.01A 7kW 3 10W 12Ω 5 0.001Ω
500V 4 0.1V 66A / 70A 4 0.01A 10.5kW 4 10W 40Ω / 60Ω 4 0.01Ω
750V 4 0.1V 90A 4 0.01A 120Ω / 160Ω 5 0.01Ω
1000V 5 0.1V 140A / 170A 4 0.1A 240Ω 5 0.01Ω
1500V 5 0.1V 210A 4 0.1A 360Ω / 480Ω 4 0.01Ω
340A / 510A 4 0.1A 550Ω / 950Ω 4 0.01Ω
1100Ω 4 0.1Ω
1450Ω 4 0.1Ω
In manual operation every set value can be set in the increments given above. In remote opera-
tion via analog or digital interfaces other increments apply (see „1.9.3 Specic technical data“ on
page 10). 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 inuence the actual values.
1.10.6.5 USB-Port (Front side)
The frontal USB port, located to the right of the rotary knobs, is intended for the connection of standard USB ash
drives (ash drive). This can be used for:
• Up or down loading from sequences for the arbitrary and UI-IU function generator
• Updating HMI rmware (new languages, functions)
USB ash drives must be FAT32 formatted and have a maximum capacity of 32GB. All supported les 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 le types from a ash drive:
*.bin Firmware updates only for the control panel. The le name format is given like
96230058_FW-BE1_V114.bin, listed in short form as FW-BE1_V114.bin. Other
les won’t be recognised or listed.
wave_u<arbitrary>.csv
wave_i<arbitrary>.csv
Function generator arbitrary curve for voltage (U) or current (I)
The name must begin with wave_u / wave_i, the rest is user dened.
iu<arbitrary>.csv IU table for the function generator.
The name must begin with iu, the rest can be user dened.
ui<arbitrary>.csv UI table for the function generator.
The name must begin with ui, the rest can be user dened.