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EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
ea1974@elektroautomatik.de
PSB 9000 3U Series
1.7.5 Alarm signals
The equipment oers various possibilities for signalling alarm conditions, however, not for danger situations. The
signals may be optical (on the display as text), acoustic (piezo buzzer) or electronic (pin/status output of an analog
interface). All alarms will cause the device to switch o the DC terminal.
The meaning of the signals is as follows:
Signal OT
(OverTemperature)
• Overheating of the device
• DC terminal will be switched o
• Non-critical
Signal OVP
(OverVoltage)
• Overvoltage shutdown of the DC terminal due to high voltage entering the device or
generated by the device itself due to a defect
• Critical! The device and/or the load could be damaged
Signal OCP
(OverCurrent)
• Shutdown of the DC terminal due to excess of the preset limit
• Non-critical, protects the load or source from excessive current consumption
Signal OPP
(OverPower)
• Shutdown of the DC terminal due to excess of the preset limit
• Non-critical, protects the load or source from excessive power consumption
Signal PF
(Power Fail)
• DC terminal shutdown due to AC undervoltage or defect in the AC section
• Critical on overvoltage! AC section could be damaged
1.8 Technical Data
1.8.1 Approved operating conditions
• Use only inside dry buildings
• Ambient temperature 0-50°C (32-122 °F)
• Operational altitude: max. 2000 m (1.242 mi) above sea level
• Max 80% relative humidity, not condensing
1.8.2 General technical data
Display: Colour TFT touch screen with gorilla glass, 4.3”, 480pt x 272pt, capacitive
Controls: 2 rotary knobs with pushbutton function, 1 pushbutton
The nominal values for the device determine the maximum adjustable ranges.
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