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System 6844(RC) - V03.00
hopf
Elektronik GmbH
Nottebohmstr. 41
• D-58511 Lüdenscheid • Tel.: +49 (0)2351 9386-86 • Fax: +49 (0)2351 9386-93 • Internet: http://www.hopf.com • E-Mail: [email protected]
9.2.2 "Power" / Power Supply LED "ON" - No Display and No Output
Description
The "Power" / power supply LED lit
Display not active
The complete System is not functioning
Cause / Problem Solution
The Control Board is faulty
The voltage provided by the power supply unit is too low
The external power supply is too low
The power supply unit is set incorrectly / faulty
9.2.3 Power LED "ON" - No Display but Valid Signal Output
Description
The "Power" / power supply LED lit
Display not active or shows only dark bars
Send LEDs of all function boards for System-Bus light up cyclically
Data Strings are available on the serial interfaces
Cause / Problem Solution
The display is faulty
The connection cable between the Control Board and the display is not plugged in
correctly or is faulty
9.2.4 Power LED "ON" - Cyclical Flickering of the Displays
Description
The "Power" / power supply LED lit
The System start frame appears on the display for a short time and then resets per-
manently
Function Boards start up for a short period
Cause
System running in auto-reset
Problem Solution
There is a board missing in one of the function board slots for the System-Bus
A function board for the System-Bus that is integrated into the System is faulty
9.2.5 No GPS Reception / No Synchronization
Description
System Status "C" is on the display
The red Sync.-Status OFF LED lights (1U Systems only)
"Sync" error relay has tripped (1U Systems only)
Quartz status is transmitted in the serial strings
Cause / Problem Solution
System was not initialized correctly / completely
Check for errors in the Error Byte (see
Chapter 5.3.2 ERROR-Byte
Verification of the System byte referring to correct selection of the Sync.-Source
(Sync.-Mode)