© EPS Stromversorgung in 2022, this information is subject to change without notice
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30000800_manual_psb_10000_4u_30kw_en_04
4.
Service and maintenance
4.1
Maintenance / cleaning
The device needs no recurring maintenance. Cleaning may be needed for the internal fans, the frequency of cleanse is de-
pending on the ambient conditions. The fans serve to cool the components which are heated by the inherent power loss.
Heavily dirt filled fans can lead to insufficient airflow and therefore the DC terminal would switch off too early due to over
-
heating or possibly lead to defects.
In case there is requirement for such a maintenance, please contact us.
4.1.1
Battery replacement
The device contains a Lithium cell battery of type CR2032, which is placed on the so-called KE board that is mounted to the
right-hand side wall (when looking from the front) of the device. The battery is specified for a life span of at least 5 years, but
due to ambient condition, especially temperature, this span could be lower. The battery is used to buffer the internal real-time
clock and if it becomes necessary to replace the battery, it can be done on location by a qualified person while maintaining
typical ESD precautionary measures. The KE board would have to be loosened and lifted up carefully to access the battery.
4.2
Fault finding / diagnosis / repair
If the equipment suddenly performs in an unexpected way, which indicates a fault, or it has an obvious defect, this can’t and
must not be repaired by the user. Contact the supplier in case of suspicion and elicit the steps to be taken.
It will then usually be necessary to return the device to the supplier (with or without guarantee). If a return for checking or
repair is to be carried out, ensure that:
•
the supplier has been contacted and it’s clarified how and where the equipment should be sent.
•
the device is in fully assembled state and in suitable transport packaging, ideally the original packaging.
•
optional extras such as an interface module is included if this is in any way connected to the problem.
•
a fault description in as much detail as possible is attached.
•
if shipping destination is abroad, the necessary customs papers are attached.
4.2.1
Firmware updates
Firmware updates should only be installed when they can eliminate existing bugs in the firmware in the
device or contain new features.
The firmware of the control panel (HMI), of the communication unit (KE) and the digital controller (DR), if necessary, is updat
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ed via the rear side USB port. For this the software EPS Power Control is needed which is included with the device or available
as download from our website together with the firmware update, or upon request.
However, be advised not to install updates promptly. Every update includes the risk of an inoperable device or system. We
recommend to install updates only if...
•
an imminent problem with your device can directly be solved, especially if we suggested to install an update during a sup-
port case
•
a new feature has been added which you definitely want to use. In this case, the full responsibility is transferred to you.
Following also applies in connection with firmware updates:
•
Simple changes in firmwares can have crucial effects on the application the devices are use in. We thus recommend to
study the list of changes in the firmware history very thoroughly.
•
Newly implemented features may require an updated documentation (user manual and/or programming guide, as well as
LabVIEW VIs), which is often delivered only later, sometimes significantly later
