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Notes: CPS/TRP/002
Names: »2299A «
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WangText
…02…CPS/TRP/002
…02…CSV/820611…02……02…#
M-FAN UNIT CR 8105M/020--/00
FAQ TEST REPORT…02……02…CAMPS
1 INTRODUCTION ..................................
4
2 APPLICABLE DOCUMENTS ..........................
4
3 TEST EQUIPMENTS ...............................
4
4 TEST CONDITIONS AND MEASURING METHODS .........
5
4.1 RACK CONFIGURATION .........................
5
4.2 CRATE CONFIGURATION ........................
6
4.3 TEMPERATURE MEASURING METHODS ..............
8
5 TEST PROCEDURE .................................
11
5.1 NORMAL CONDITIONS ..........................
11
5.2 VARIATION OF MAINS VOLTAGE .................
11
5.3 VARIATION OF MAINS FREQUENCY ...............
11
5.4 DROP OFF OF A BLOWER GROUP..................
12
6 TEST RESULTS ..................................
13
6.1 NORMAL CONDITIONS ..........................
13
6.2 VARIATION OF MAINS VOLTAGE .................
13
6.3 VARIATION OF MAINS FREQUENCY ...............
16
6.4 DROP OFF OF A BLOWER GROUP .................
16
6.5 CONCLUSION .................................
17
1̲ ̲ ̲I̲N̲T̲R̲O̲D̲U̲C̲T̲I̲O̲N̲
The FAQ test of the M-Fan Unit primary is a test of
the cooling efficiency for variation in mains voltage
in the range 220V + 10%/- 15%, variation in mains frequency
in the range 50 Hz +/- 10% and for a drop off of one
of the two blower groups in the M-Fan Unit.
The test is made on a M-Fan and a full configurated
Processor Crate Assembly in CAMPS Computer Racks.
The temperature measuring and test methods are made
according to Temperature requirements for the CR 80,
EDD/005/RSP/0001.
2̲ ̲ ̲A̲P̲P̲L̲I̲C̲A̲B̲L̲E̲ ̲D̲O̲C̲U̲M̲E̲N̲T̲S̲
Temperature Requirements for CR80S
EDD/005/RSP/0001
Measurements of Forced Cooling
Efficiency for CR80M Systems
CSD/008/TRP/0088
3̲ ̲ ̲T̲E̲S̲T̲ ̲E̲Q̲U̲I̲P̲M̲E̲N̲T̲S̲
S̲t̲a̲t̲i̲c̲ ̲F̲r̲e̲q̲u̲e̲n̲c̲y̲ ̲S̲t̲a̲b̲i̲l̲i̲z̲e̲r̲
Abacus Controls Inc., Type 1152-3
Modified for variation of frequency
D̲i̲g̲i̲t̲a̲l̲ ̲T̲h̲e̲r̲m̲o̲m̲e̲t̲e̲r̲
Frode Pedersen & Co, Type 204
3 digits, tolerances +/- 1…0e…o…0f… C
Thermocuple Type: Fe/K
P̲o̲w̲e̲r̲ ̲M̲e̲t̲e̲r̲
Laur. Knudsen Mek. Etabl. A/S, Type L9
O̲s̲c̲i̲l̲l̲o̲s̲c̲o̲p̲e̲
Tektronix 465B
4̲ ̲ ̲T̲E̲S̲T̲ ̲C̲O̲N̲D̲I̲T̲I̲O̲N̲S̲ ̲A̲N̲D̲ ̲M̲E̲A̲S̲U̲R̲I̲N̲G̲ ̲M̲E̲T̲H̲O̲D̲S̲
4.1 R̲A̲C̲K̲ ̲C̲O̲N̲F̲I̲G̲U̲R̲A̲T̲I̲O̲N̲
The tested M-Fan Unit and Processor Crate Assembly
was located in CAMPS Processor Racks (Figure 4.1-1).
In the FAQ test period the rear doors were locked,
and the front doors were open. During measurements
the front doors were locked for a period, but it seems
not to affect the outlet temperatures.
During test all equipment in the racks was turned on.
Figure 4.1-1…01…CAMPS COMPUTER RACKS
4.2 C̲R̲A̲T̲E̲ ̲C̲O̲N̲F̲I̲G̲U̲R̲A̲T̲I̲O̲N̲
The tested processor Crate Assembly Configuration is
the CAMPS configuration.
Figure 4.2-1 shows the modules and their location in
the Crate. In front slots without modules, there is
a front blank panel and in some of these slots, also
a dummy bottom plate. The dummy bottom plate stops
the air from the M-Fan Unit, to make bigger airflow
around the modules.
The dummy bottom plates is located with that purpose,
to lower the peak temperature. In the rear crate no
blank panels are mounted.
FRONT VIEW
REAR VIEW
FIGURE 4.2-1…01…PROCESSOR CRATE ASSEMBLY CONFIGURATION
4.3 T̲E̲M̲P̲E̲R̲A̲T̲U̲R̲E̲ ̲M̲E̲A̲S̲U̲R̲I̲N̲G̲ ̲M̲E̲T̲H̲O̲D̲S̲
The temperature rise is found by measuring the air
outlet temperature over the PCB Modules and from that
subtract the air inlet temperature in front of the
M-Fan Unit.
The M-Fan Unit inlet temperature is the average of
tree measurings, see figure 4.3-1. As the M-Fan Unit
also has a air inlet in rear for the rear crate there
are two air inlet temperatures.
Y: 90 +/- 20 mm
Z: 30 +/- 20 mm
X1: 120 +/- 30 mm
X2: 250 +/- 30 mm
X3: 370 +/- 30 mm
Inlet Temperature front T…0f…IF…0e… = (T…0f…IF1…0e… + T…0f…IF2…0e… + T…0f…IF3)/3
Inlet Temperature rear T…0f…IR…0e… = (T…0f…IR1…0e… + T…0f…IR2…0e… + T…0f…IR3)/3
FIGURE 4.3-1…01…FAN UNIT INLET TEMPERATURE MEASUREMENT POINTS
The Outlet temperature is measured over the PCB-Modules
with the sensor placed in the gridhols and in gridlevel.
The temperature measuring is done in 5 points over
the slots in the front Crate, see figure 4.3-2, and
in 2 points over the rear slots, see figure 4.3-3.
FIGURE 4.3-2…01…FRONT MODULE OUTLET TEMPERATURE MEASUREMENT POINTS
FIGURE 4.3-3…01…REAR MODUL OUTLET TEMPERATURE MEASUREMENT POINTS
Settling time before measurement: Settling time for
temperature sensor + 30 seconds.
5̲ ̲ ̲T̲E̲S̲T̲ ̲P̲R̲O̲C̲E̲D̲U̲R̲E̲
5.1 N̲O̲R̲M̲A̲L̲ ̲C̲O̲N̲D̲I̲T̲I̲O̲N̲S̲
Measure of the inlet and outlet temperatures using
the methods shown in section 4.3 and under the following
conditions:
Mains, Crate, Fan: 220V/50Hz
All blowers in the M-Fan unit running (A+B)
Conditions mentioned in section 4.1 and 4.2
5.2 V̲A̲R̲I̲A̲T̲I̲O̲N̲ ̲O̲F̲ ̲M̲A̲I̲N̲S̲ ̲V̲O̲L̲T̲A̲G̲E̲
Measure of the outlet temperature for Fan voltage
220V - 15% = 187V and 220V + 10% = 242V
Other conditions as under section 5.1.
The temperature measurement is made in 2 points with
high, 2 points with medium and 2 points with low temperature.
Settling time before measurement:10 minutes.
5.3 V̲A̲R̲I̲A̲T̲I̲O̲N̲ ̲O̲F̲ ̲M̲A̲I̲N̲S̲ ̲F̲R̲E̲Q̲U̲E̲N̲C̲Y̲
Measure of the outlet temperature for Fan mains frequency
50 Hz - 10% = 45 Hz and 50 Hz + 10% = 55 Hz.
Other conditions as under section 5.1.
The temperature measurement is made in 2 points with
high, 2 points with medium, and 2 points with low temperature.
Settling time before measurement: 10 minutes.
5.4 D̲R̲O̲P̲ ̲O̲F̲F̲ ̲O̲F̲ ̲A̲ ̲B̲L̲O̲W̲E̲R̲ ̲G̲R̲O̲U̲P̲
The outlet temperature is measured for mains, on one
group of blowers at the time.
Other conditions as under 5.1.
The temperature measurement is made in 2 points with
high, 2 points with medium and 2 points with low temperature.
Settling time before measurement: 10 minutes
.…01…6̲ ̲ ̲T̲E̲S̲T̲ ̲R̲E̲S̲U̲L̲T̲S̲
6.1 N̲O̲R̲M̲A̲L̲ ̲C̲O̲N̲D̲I̲T̲I̲O̲N̲S̲
Temperature measuremets made under normal conditions
are shown in figure 6.1-1 and figure 6.1-2.
6.2 V̲A̲R̲I̲A̲T̲I̲O̲N̲ ̲O̲F̲ ̲M̲A̲I̲N̲S̲ ̲V̲O̲L̲T̲A̲G̲E̲
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲ ̲ ̲
MEASURED OUTLET AIR TEMPERATURES …0e…o…0f…C
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲ ̲ ̲
S̲L̲O̲T̲/̲M̲E̲A̲S̲.̲ ̲P̲O̲I̲N̲T̲ ̲ ̲ ̲ ̲1̲7̲0̲V̲ ̲ ̲ ̲ ̲1̲8̲7̲V̲ ̲ ̲ ̲ ̲2̲2̲0̲V̲ ̲ ̲ ̲ ̲2̲4̲2̲V̲ ̲ ̲
̲ ̲2̲7̲0̲V̲
9̲/̲T̲2̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲3̲4̲ ̲ ̲ ̲ ̲ ̲ ̲3̲4̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲3̲4̲ ̲ ̲ ̲ ̲ ̲3̲4̲ ̲ ̲ ̲
̲ ̲ ̲3̲4̲
1̲1̲/̲T̲3̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲4̲1̲ ̲ ̲ ̲ ̲ ̲ ̲4̲1̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲4̲1̲ ̲ ̲ ̲ ̲ ̲4̲1̲ ̲ ̲ ̲
̲ ̲ ̲4̲1̲
1̲3̲/̲T̲5̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲8̲ ̲ ̲ ̲ ̲ ̲ ̲2̲8̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲8̲ ̲ ̲ ̲ ̲ ̲2̲8̲ ̲ ̲ ̲
̲ ̲ ̲2̲8̲
2̲0̲/̲T̲2̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲9̲ ̲ ̲ ̲ ̲ ̲ ̲2̲9̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲9̲ ̲ ̲ ̲ ̲ ̲2̲9̲ ̲ ̲ ̲
̲ ̲ ̲2̲9̲
3̲/̲T̲1̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲
̲ ̲ ̲2̲6̲
1̲6̲/̲T̲2̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲
̲ ̲ ̲2̲7̲
6.3 V̲A̲R̲I̲A̲T̲I̲O̲N̲ ̲O̲F̲ ̲M̲A̲I̲N̲S̲ ̲F̲R̲E̲Q̲U̲E̲N̲C̲Y̲
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲ ̲ ̲
MEASURED OUTLET AIR TEMPERATURES …0e…o…0f…C
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲ ̲ ̲
S̲L̲O̲T̲/̲M̲E̲A̲S̲.̲ ̲P̲O̲I̲N̲T̲ ̲ ̲ ̲ ̲4̲0̲H̲z̲ ̲ ̲ ̲ ̲4̲5̲H̲z̲ ̲ ̲ ̲ ̲5̲0̲H̲z̲ ̲ ̲ ̲ ̲5̲5̲H̲z̲ ̲ ̲
̲ ̲6̲0̲H̲z̲
9̲/̲T̲2̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲3̲5̲ ̲ ̲ ̲ ̲ ̲ ̲3̲4̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲3̲4̲ ̲ ̲ ̲ ̲ ̲3̲3̲ ̲ ̲ ̲
̲ ̲ ̲3̲2̲
1̲1̲/̲T̲3̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲4̲2̲ ̲ ̲ ̲ ̲ ̲ ̲4̲1̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲4̲1̲ ̲ ̲ ̲ ̲ ̲4̲1̲ ̲ ̲ ̲
̲ ̲ ̲4̲0̲
1̲3̲/̲T̲5̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲8̲ ̲ ̲ ̲ ̲ ̲ ̲2̲8̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲8̲ ̲ ̲ ̲ ̲ ̲2̲8̲ ̲ ̲ ̲
̲ ̲ ̲2̲8̲
2̲0̲/̲T̲2̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲3̲0̲ ̲ ̲ ̲ ̲ ̲ ̲2̲9̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲9̲ ̲ ̲ ̲ ̲ ̲2̲9̲ ̲ ̲ ̲
̲ ̲ ̲2̲9̲
3̲/̲T̲1̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲
̲ ̲ ̲2̲5̲
1̲6̲/̲T̲2̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲
̲ ̲ ̲2̲6̲
6.4 D̲R̲O̲P̲ ̲O̲F̲F̲ ̲O̲F̲ ̲A̲ ̲B̲L̲O̲W̲E̲R̲ ̲G̲R̲O̲U̲P̲
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲ ̲ ̲
MEASURED OUTLET AIR TEMPERATURES …0e…o…0f…C
̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲
̲ ̲ ̲ ̲ ̲ ̲
S̲L̲O̲T̲/̲M̲E̲A̲S̲.̲ ̲P̲O̲I̲N̲T̲ ̲ ̲ ̲ ̲G̲R̲O̲U̲P̲ ̲A̲ ̲ ̲ ̲ ̲ ̲ ̲G̲R̲O̲U̲P̲ ̲A̲+̲B̲ ̲ ̲ ̲ ̲ ̲ ̲G̲R̲O̲U̲P̲
̲B̲ ̲
9̲/̲T̲2̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲3̲5̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲3̲4̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲3̲4̲
̲ ̲ ̲
1̲1̲/̲T̲3̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲4̲2̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲4̲1̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲4̲1̲
̲ ̲ ̲
1̲3̲/̲T̲5̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲8̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲8̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲8̲
̲ ̲ ̲
2̲0̲/̲T̲2̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲3̲0̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲9̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲3̲0̲
̲ ̲ ̲
3̲/̲T̲1̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲
̲ ̲ ̲
1̲6̲/̲T̲2̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲ ̲2̲6̲
̲ ̲ ̲
6.5 C̲O̲N̲C̲L̲U̲S̲I̲O̲N̲
Variation in mains voltage in the range 220V + 10%/-15%
has no effect on the cooling efficiency.
Variation in mains frequency in the range 50Hz +/-
10% affect the highest outlet temperatures with about
+/- 1/2…0e…o…0f…C.
If one of the blower groups is swithed off the highest
outlet temperatures rise max. 1…0e…o…0f…C.
The conclusion of these measurements must be that variations
in mains supply in the range 220V + 10%/-15%, 50Hz
+/- 10% or a drop off of one of the blower groups
only have a negligible effect on the M-Fan units cooling
effieciency.
