User Manual

Page 22
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 The control panel (HMI)
The HMI (Human Machine Interface) consists of a display with touchscreen, two rotary knobs, a button and a
USB-A port.
1.10.6.1 Touchscreen display
The graphic touchscreen display is divided into a number of areas. The complete display is touch sensitive and
can be operated by nger or stylus to control the equipment.
In normal operation the left hand side is used to show actual and set values and the right hand side 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
Touch area MENU
Actual resistance display
Resistance set value input
Touch area SETTINGS
Touch areas may be locked. Unlocked touch areas have a frame:
Touch areas are unlocked SETTINGS touch area is locked
This is true for 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 resistance set value is only displayed by active R/I mode.
When the DC input is switched on, the actual regulation mode CV, CC, CP or CR is displayed next to the corre-
sponding actual values.
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 rotation and decreased by anti-clockwise turning.
General display and settings area:
Display Unit Range Description
Actual voltage V 0-125% U
Nenn
Actual values of DC input voltage
Set value voltage
(1
V 0-100% U
Nenn
Set value for limiting the DC input voltage
Actual current A 0-125% I
Nenn
Actual value of DC input current
Set value current
(1
A 0-100% I
Nenn
Set value for limiting the DC input current
Actual power W 0-125% P
Nenn
Calculated actual value of input power, P = U * I
Set value power
(1
W 0-100% P
Nenn
Set value for limiting DC input power
Actual resistance Ω 0...99.999 Ω Calculated actual internal resistance, R = U
IN
/ I
IN
Set value internal resistance
(1
Ω x
(2
-100% R
Max
Set value for the target internal resistance
The value with pink background is only displayed in R/I mode.
(1
Valid also for values related to these physical units, such as OVD for voltage and UCD for current
(2
Lower limit for resistance set value varies. See table in section 1.10.6.3