User manual

36
© 2006, Elektro-Automatik GmbH & Co. KG
Irrtümer und Änderungen vorbehalten
EN
© 2009, Elektro-Automatik GmbH & Co. KG
About the power supply
6.3 Short overview about the display elements
 Actual value of the output voltage
 Actual value of the output current
 Actual value of the output power
During normal operation the actual values are displayed in big
letters.
 Set value of voltage
Target value of the desired output voltage (left knob). The value is
adjustedincoarse(decimalplacesleftofcomma)orne(decimal
placesrightofcomma).Switchingbetweencoarseandneis
done with the pushbuttons on the left rotary encoder.
 Set value of current
Target value of the desired output current (right knob). The va-
lueisadjustedincoarse(decimalplacesleftofcomma)orne
(decimal places right of comma). Switching between coarse and
neisdonewiththepushbuttonsontherightrotaryencoder.It
might be required to push button before the set value is
adjustable.
 Set value of the power (models from 1kW)
Target value of the desired maximum output power (right knob). In
order to set the value, button has to be pushed before.
 Set value of internal resistance (optional)
Target value of the desired internal resistance value (right knob).
This set value replaces the power set value if the internal re-
sistance control is unlocked and U/I/R mode has been selected
in the device setup. In order to set the value, button has
to be pushed before.
The state of the power output is displayed in the bottom right
corner of the display.
{ON,OFF} State of the power output
The currently active control mode is displayed to the right of the
related actual values. For instance, the abbreviation „CV“ is dis-
played next to the actual value of voltage, because it means that
„Control voltage“ mode is active. The output values are limited
by the active control mode:
 - limited by the voltage set value
(= Control Voltage)
 - limited by the power set values
(= Control Power)
 - limited by the set value of current
(= Control Current)
 - limited by the set value for internal resistance
(optional at U/I/R mode), indicated next to the
actual voltage
(= Control Resistance)
Additionally to the state of the output an alarm, a warning or a
signal can be displayed:
Alarm Example: = Overtemperature
Warnings Example: = Overvoltage
Signals Example: = Overcurrent
The location from where the unit is currently controlled is dis-
played below the output state. This location is absolute, which
means that you cannot control the unit from elsewhere without
changing the location.
 local Control only possible at the unit
 remote Remote control via communication interfaces
(IF-C1, IF-R1, IF-U1 etc.)
 extern Remote control via analogue interface
6.4 Switching the unit on
The unit is switched on with the mains switch. After it has been
switched on, the displays shows the device type and, if program-
med, a user text.
The user text can be entered via one of the digital interface cards
using an included LabView VI. This text is intended to identify a
single unit in an complex environment of multiple units.
Aftertheinternalsystemhasbeenveriedandhasbooted,the
last state of the power supply (set values, alarm management
etc.) is restored. The return state of the output after a mains loss
(power fail error) or after the unit was switched on can be set in
the Prole menu.
6.5 Switching the power output on
By pressing the ON button the power supply output is
switched on, as long as it is not blocked by the input pin „REM-
SB“ (13) of the internal analogue interface or input pin „Standby“
(11) of a equipped analogue interface card IF-A1, because both
have higher priority. If one of these is preventing to switch the
output on by the button, the display will indicate the status text
„auto ON“, noticing the user that the output will switch on as soon
as the block from the pins is removed.
The display shows the current state with „ON“.
The OFF button switches the power supply output off
(shutdown). This state is displayed with „OFF“.