Instructions

Page 9
EA Elektro-Automatik GmbH
Helmholtzstr. 31-37 • 41747 Viersen
Germany
Fon: +49 2162 / 3785-0
Fax: +49 2162 / 16230
www.elektroautomatik.de
[e-mail]
PS 9000 3U Series
1.7.5 Alarm signals
The equipment o󰀨ers 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 output.
The meaning of the signals is as follows:
Signal OT
(OverTemperature)
• Overheating of the device
• DC output will be switched o󰀨 temporarily
• Non-critical
Signal OVP
(OverVoltage)
• Overvoltage shutdown of the DC output due to high voltage entering the device or gen-
erated 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 undervoltage or defect of the AC input circuit
• Critical on overvoltage! AC mains input circuit could take damage
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
• Maximum 80% humidity, non-condensing
1.8.2 General technical data
Display: Color TFT display, 480pt x 128pt
Controls: 2 rotary knobs with button function, 5 pushbuttons
The nominal values for the device determine the maximum adjustable ranges.