Power indication, Temperature warning system – Grass Valley LDK 4488 User Manual
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LDK 4488, LDK 4489 SuperXpander, Xpander User’s Guide (v5.0)
Chapter 5 - Power
Power indication
The utility power indicator provides information about the power output(s):
Temperature warning system
When the temperature inside the SuperXpander/Xpander becomes too high, the variable
power output is switched off and a warning message is shown on the LCD display. When the
temperature increases even more, the fixed power output is switched off as well and another
warning message is shown.
The table below shows detailed information about the temperature warning system:
Indicator
Description
YELLOW
Normal operation. Power is available.
RED
Power overload on the variable power output (applies to the SuperXpander
only)
Off (in remote mode)
In remote mode this indicates that there is a power overload on the fixed
power output.
Off (in local mode)
In local mode this indicates that the utility power unit is switched off.
Fixed output
Variable output
(SuperXpander only)
Action
below 60ºC
below 59 ºC
normal operation
from 60 ºC up to 65 ºC
from 59 ºC up to 64 ºC
The following warning message is shown on
the LCD display of the control panel
(SuperXpander only).
65 ºC and higher
64 ºC and higher
The power output is switched off and the
following warning message is shown on the
LCD display of the control panel
(SuperXpander only).
63 ºC or lower
62 ºC or lower
The power ouput is switched back on again.
No warning will be shown as long as the
temperature decreases.
Curr. Temp 65 ºC
UTIL SWITCH OFF TEMP
Variable: 62 ºC
Fixed: 61 ºC
Curr. Temp 65 ºC
UTIL SWITCH OFF TEMP
Variable: OFF
Fixed: OFF