Page 20
EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
EL 9000 B 15U/24U Series
1.9.6 The control panel (HMI)
The HMI (
H
uman
M
achine
I
nterface) consists of a display with touchscreen, two rotary knobs, a pushbutton and
an USB port.
1.9.6.1
Touchscreen display
The graphic touchscreen display is divided into a number of areas. The complete display is touch sensitive and
can be operated by finger or stylus to control the equipment.
In normal operation the left hand side is used to show actual values and set values and the right hand side is used
to display status information:
Actual voltage display
Voltage set value input
Status area
Actual current display
Current set value input
Touch area for
rotary knob assignment
Actual power display
Power set value input
Resistance set value input
Actual resistance display
Touch areas MENU
and SETTINGS
Touch areas may be enabled or disabled:
Black text or symbol = Enabled
Grey text or symbol = Disabled
This applies to all touch areas on the main screen and all menu pages..
•
Actual / set values area (left hand side)
In normal operation the DC input values (large numbers) and set values (small numbers) for voltage, current and
power are displayed. The two resistance related values are only displayed in active resistance mode.
When the DC input is switched on, the actual regulation mode,
CV, CC, CP
or
CR
is displayed next to the cor
-
responding actual values, as shown in the figure above.
The set values can be adjusted with the rotary knobs next to the display screen or can be entered directly via the
touchscreen. When adjusting with the knobs, pushing the knob will select the digit to be changed. Logically, the
values are increased by clockwise turning and decreased by anti-clockwise turning.
General display and setting ranges:
Display
Unit
Range
Description
Actual voltage
V
0-125% U
Nom
Actual value of DC input voltage
Set value of voltage
V
0-102% U
Nom
Set value for limiting the DC input voltage
Actual current
A
0.2-125% I
Nom
Actual value of DC input current
Set value of current
A
0-102% I
Nom
Set value for limiting the DC input current
Actual power
kW
0-125% P
Peak
Calculated actual value of input power, P = U
IN
* I
IN
Set value of power
kW
0-102% P
Peak
Set value for limiting DC input power
Actual resistance
Ω
0...99999 Ω
Calculated actual internal resistance, R = U
IN
/ I
IN
Set value resistance
Ω
x
(1
-100% R
Max
Set value for the target internal resistance
Adjustment limits
A, V,
kW,Ω
0-102% nom
U-max, I-min etc., related to the physical values
Protection settings 1
A, kW
0-110% nom
OCP and OPP, related to the physical values
Protection settings 2
V
0-103% nom
OVP, related to the input voltage
(1
The minimum resistance set value varies according to model. See technical specifications in section
