User manual

32
© 2006, Elektro-Automatik GmbH & Co. KG
Irrtümer und Änderungen vorbehalten
EN
© 2008, Elektro-Automatik GmbH & Co. KG
6. Handling
For an overview of all operating elements also see page
29.
6.1 The display
This is an overview of the two line display and its layout. The
left side always shows actual values while the load input is
switched on:
The indicator for the regulation mode(a triangle) appears
next to the actual value, which is related to currently active
regulation mode of the load. This can differ from the chosen
regulation mode if a nominal value has been exceeded. The
current or power limitation have priority over the voltage or re-
sistance limitation here. That means, that the load will change
into constant current limitation as soon as the nominal current
value has been exceeded. The triangle indicates this.
In standby (load input off), the status Standby is displayed
and only the actual value of voltage is shown:
Various texts in the right half of the display indicate different
operation modes or errors:
This text appears if the load was set to remote control ope-
ration (Remote mode) via the optional interface card. This
is possible in the modes Level A, B and A/B.
The text External mode indicates, that the control of the load
was switched to the analogue interface. The set values can
not be adjusted at the device anymore in this mode. For de-
tailed information see section „8. The analogue interface“.
Figure 4
Figure 5
Figure 6
Figure 7.1
Figure 4
Handling the device
The texts Overvoltage or Overtemperature indicate the
status of an error.
An overtemperature error occurs if the load gets over-
heated. The load input is switched off and remains as long
the error is persistent. After cooling down it switches auto-
matically on again.
An overvoltage error is indicated if the overvoltage limit for
the DC input has been exceeded (see „2. Technical speci-
cations“).Thiserrorswitchestheloadinputpermanentlyoff.
After removal of the cause it can be put online again.
New since rmware 3.01: Alarm management
Error indications now remain in the display until acknow-
ledged by the „Input on/off“ button. The purpose is to in-
form the user that an alarm is either active or already gone.
Example:
Figure 7.2
Only the least occured alarm is indicated, but up to three diffe-
rent alarms are stored in an internal error buffer which can be
readoutviaoneofthedigitalinterfacecardsusingaspecic
command. This also resets the display and purges the buffer.