EPS Stromversorgung 06230204, Operating Manual, Page: 28 / 66

Page 28
EPS Stromversorgung GmbH
Alter Postweg 101 • 86159 Augsburg
Germany
PS 9000 2U Series
Fon: +49 821 / 570451-0
Fax: +49 821 / 570451-25
www.eps-germany.de
info@eps-germany.de
1.9.6 The control panel (HMI)
The HMI ( H uman M achine I nterface) consists of a display, two rotary knobs with button function and six pushbuttons.
1.9.6.1 Display
The display is divided into a number of areas. In normal operation the left upper half is used to show actual values
and the lower half is used to display status information and set values:
Actual values
U/I or U/I/P
Set value of voltage Status: regulation mode, alarms,
control location
Set value of current or
Set value of power
• Actual values area (upper half)
In normal operation the DC output values (large numbers) of voltage and current resp. also of power are displayed,
depending on the display settings. The display format of values is according to what’s listed in
1.9.6.4.
• Set values area (lower half, left and right side)
The set values of voltage and current (mode: U/I) resp. of voltage and power (mode: U/P(I)) are displayed here
and are adjustable with the left hand and right hand rotary knobs when operating the device manually. While doing
so, the digit to adjust can be switched by pushing the corresponding rotary knob to move the cursor.
The left hand rotary knob is always assigned to the DC output voltage and related parameters like OVP or U-max,
whereas the right hand rotary knobs is either assigned to the DC output current and related parameters or to the
DC output power. In remote control condition, no matter if analog or digital, the set values given from remote are
displayed here.
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, unless they are somehow limited by a
maximum value or an adjustment limit (see „3.4.4. Adjustment limits“ ).
General display and settings ranges:
Display Unit Range Description
Actual voltage V 0-125% U
Nom
Actual values of DC output voltage
Set value voltage V 0-102% U
Nom
Set value for limiting the DC output voltage
Actual current A 0.2-125% I
Nom
Actual value of DC output current
Set value current A 0-102% I
Nom
Set value for limiting the DC output current
Actual power W 0-125% P
Nom
Actual value of output power, P = U * I
Set value power W 0-102% P
Nom
Set value for limiting DC output power
Adjustment limits A, V, kW 0-102% Nominal val. U-max, I-min etc., related to the physical units
Protection settings A, V, kW 0-110% Nominal val. OVP, OCP etc., related to the physical units
•
Status area (lower half, middle)
In normal display mode and while the DC output is switched on, the actual regulation mode, CV, CC or CP (see
„3.2. Operating modes“ ) is displayed here. In case pushbutton Menu is activated while the output is on, the quick
menu (see 3.4.7 ) will be displayed in the lower half of the display, giving you quick access to set values and some
information, while the actual regulation mode indicator “jumps” to the middle between the actual values:
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