GE VR11, Reference Manual

Page: 81 / 118

Without battery and without this supply voltage, the real time clock oscillator
has to be started at each power up. This time gets longer when operating at
lower temperatures and can be up to around 30 seconds (at -40 °C). At normal
ambient temperatures this delay is below one second.
The red status LED goes off after the reset sequence and starts its normal
blinking within the BIOS POST after the RTC oscillator is up.
When ordering a battery-less VR11, the setup information is stored
automatically within an onboard EEPROM and is updated via standard BIOS
Setup function. No external software is needed to create a user defined setup
like in earlier products from GE Intelligent Platforms. It is still recommended to
use an external supply voltage to this battery input to avoid the power on
oscillator start time and to keep the date and time information.
Environment Conditions
Ambient temperatures and humidity values for theVR11:
Table 27: Environment conditions
Style 1 Style 3, 6, 8
High Temperature
-
Storage
- Operating (see diagram below)
+85 °C
+85 °C
Low Temperature
-
Storage
- Operating
-40 °C
0 °C
-40 °C
-40 °C
Temperature Shock
-
Storage
- Operating
+/-10 °C/min
+/-5 °C/min
+/-20 °C/min
+/-10 °C/min
Relative Humidity
-
Storage, Operating
Up to 95 %, non-condensing
VP11 only supports style 1 and 3.
Storage temperature on style 6 & 8 is between -55 °C (low) and +105 °C
(high).
Shock and vibration values for the VR11 designed to meet the values listed
below:
Table 28: Shock & vibration parameters
Style 1, 3 Style 6 Style 8
Vibration
-
Spectrum
- Acceleration
5 to 100 Hz
2 g
rms
5 to 2000 Hz
2 g
rms
5 to 2000 Hz
14 g
rms
Shock
-
Amplitude
- Duration
12 g
6 ms
20 g
6 ms
40 g / 100 g
11 ms / 6 ms
GE Intelligent Platforms – VR11, VP11 Hardware Reference Manual, Second Edition Page 81