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PS 9000 1U Series
4.
Service and maintenance
4.1
Maintenance / cleaning
The device needs no maintenance. Cleaning may be needed for the internal fans, the frequency of cleanse is
depending 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 output would switch off too
early due to overheating or possibly lead to defects.
Cleaning the internal fans can be performed with a vacuum cleaner or similar. For this the device needs to be opened.
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 not 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 is 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.
• 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
Replacing a defect mains fuse
The device is protected by one fusible (T16 A, 250 V, 35 mm) which is located inside the device.
This fusible should only blow due to a defect in the AC input circuit, but could also blow when running the unit at
extremely low AC supply voltage. It can be replaced for testing purposes, in order to find out whether it is only
blown and nothing else is damaged or if there is a true defect, which cannot be repaired on location.
The device has a warranty seal which would break when opening the unit, so we recommend to contact us first in
such a case during warranty period. According to the situation and problem description, we will decide what to do.
After warranty period it is allowed to open the unit at will and on your own risk. This is done by pulling the AC cord
first, then removing all screws for the top cover (5 x screw each on left and right side, plus 1 x screw at the rear).
It is imperative to replace the fuse only with one of same type and values.
4.2.2
Firmware update
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 neces-
sary, is updated via the rear side USB port. For this the software "EA 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.
EA Elektro-Automatik GmbH
Page 50
Helmholtzstr. 31-33 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
ea1974@elektroautomatik.de
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