User Manual

Page 9
EA Elektro-Automatik GmbH
Helmholtzstr. 31-33 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
[e-mail]
PSI 9000 3U Series
1.8.5 Alarm signals
The equipment offers 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 off the DC output.
The meaning of the signals is as follows:
Signal OT
(OverTemperature)
• High temperature or overheating of the device
• DC output will be switched off
• Non-critical
Signal OVP
(OverVoltage)
• Overvoltage shutdown of the DC output due to high voltage entering the device or gener-
ated 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 output due to excess of the preset limit
• Non-critical, protects the load from excessive current consumption
Signal OPP
(OverPower)
• Shutdown of the DC output due to excess of the preset limit
• Non-critical, protects the load from excessive power consumption
Signal PF
(Power Fail)
• DC output shutdown due to AC overvoltage/undervoltage
• Critical on overvoltage! AC mains output circuit could be damaged
1.9 Technical Data
1.9.1 Approved operating conditions
• Use only inside dry buildings
• Ambient temperature 0-50°C
• Operational altitude: max. 2000 m above sea level
• Max 80% RH up to 30°C, linear decrease to 50% RH at 50°C
1.9.2 General technical data
Display: Graphic touchscreen, 192pt x 182pt, resistive
Controls: 2 rotary knobs with pushbutton function, 1 pushbutton
The nominal values for the device determine the maximum adjustable ranges.