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PSL
PSL File #SAMPLE-001 Last updated 3 August 2004
Power Standards Laboratory
www.PowerStandards.com
3908 Adeline Street
Emeryville, CA 94608 USA
TEL ++1-510-658-9600
FAX ++1-510-658-9688
www.PowerStandards.com
Job #IT-001
SEMI F4
F477
Voltage Sag Immunity
Characterization Report
IntraTech 2200 Series,
−Φ 50Hz Power
240V 3−Φ
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Client
IntraTech Corp.
12345 Next Step Street
Santa Clara, CA 95050 USA
TEL 1-408-555-1212
FAX 1-408-555-1000
Contact: Bill Jones 1-408-555-1401 bjones@intratech.com
Bob Smith (Purchasing)
P.O. No. IT45633
PSL Engineer, Schedule, and Equipment
PSL Test Engineer:
Test date:
Test location:
Test category:
Test sub-category:
Equipment Under Test:
Special notes:
Alex McEachern, (510) 658-9600 Alex@PowerStandards.com
May 8, 2000, commencing at 9:00 AM. Further testing on May 15, 2000.
Engineering Lab at above address
SEMI F42/F47 Voltage Sag Immunity
3-phase, 50 Hz only, less than 50 amps, 480V or less
IntraTech Model 2200, S/N 99SW4502
Manufacturer states this is generic for 2200 Series with 240V power.
Provide training on test methodology. Provide Characterization Report.
PSL-provided equipment: IPC-480V-200A Industrial Power Corruptor S/N IPC-03005
IBM/PC Notebook, pre-loaded with F47/F42 software and Reports.
Photo 1: Equipment under test: IntraTech Model 2200, S/N 99SW4502
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Client personnel
The following Client personnel participated in the test. It is acceptable for one person to perform more than one role.
Note that PSL provides engineering advice only, and accepts responsibility for damage only to equipment provided by
PSL. Client is responsible for safety during testing, and is responsible for any damage to Client equipment and/or
facilities.
Supervising engineer: John Smith, Compliance Engineer, IntraTech
(This person is responsible for the overall testing procedure and environment.)
Equipment engineer: Bill Johnson, Senior Compliance Engineer, IntraTech
(This person is primarily responsible for operating the Equipment Under Test,
and determining if it has experienced a misoperation.)
Electrician:
Bob Jones, Sr. Electrician, Intratech
(This person is primarily responsible for making and adjusting the electric
power connections, and is responsible for safety during the tests.)
Documents, Test Environment, Tools and Supplies
Client provided the following Documents, Test environment, Tools and supplies.
Documents provided by Client:
9 Schematics of the power-related segments of Equipment Under Test
9 Client’s Confidentiality Agreement
Test environment provided by Client:
9 A test space that provides convenient, safe, comfortable access to the
Equipment Under Test
9 Equipment Under Test in operating condition, with gas, cooling, air,
and other utilities connected
9 Readily-disconnected electric power for Equipment Under Test, with
current limiting devices rated no more than twice the nameplate rating of
the Equipment Under Test. Each electric power connection must be clearly labelled
with phase identification and voltage.
9 Instrument power (100-240VAC, 50/60 Hz, 5 amps) for sag generator, located
no more than three feet from power connection for Equipment Under Test. Extension cords
are acceptable.
9 Protective earth lug suitable for 10AWG – 6AWG, for sag generator.
9 Work-table or cart for sag generator, capable of supporting 150 lbs. and
positioned between the electric power and the Equipment Under Test.
9 Readily broken and re-connected power conductors for Equipment Under Test,
typically 10AWG – 8AWG, installed in each phase conductor, and in neutral conductor if used.
Must be stranded. Open hex lug connectors, or lug-type fuse holders, are recommended.
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Photo 2: All testing was performed using a
PSL Industrial Power Corruptor Model
IPC-480V-200A
Photo 3: Sag generator connections
Tools and supplies provided by Client
9 One or more spools of stranded 10AWG-8AWG conductors for
miscellaneous wiring, plus spare fuses (if used) for Equipment Under Test and electric power source.
9 Standard safety equipment for all participants (gloves, glasses, etc.), and
standard hand tools and supplies for electric power work (screwdrivers, cutters, tape, etc.)
9 Hand-held DVM for checking connections, fuses, voltages, etc.
9 Clamp-on AC current meter for miscellaneous checks
Safety review
9 Prior to test commencement, all participants reviewed the exit locations, the emergency power off location,
the location of fire extinguishers, the emergency telephone number (555-1212).
9 Protective eyewear and insulating gloves were available. Insulating mats were N/A.
9 The following participants had current CPR training: Bob Jones
Electric power connections
9 Power was 3-phase, center-grounded delta configuration, 240 V nominal phase-to-phase, 50 Hz.
9 The fused disconnect switch was equipped with 60A fuses, rated for 200kA interruption.
9 Less than 100 kA of short-circuit current was available, so the 200 kA interruption
rating on the fuses was deemed adequate.
Equipment under test
9 Model 2200, S/N 99SW4502, Stepper/Washer. Client states that this equipment is generic for
Series 2200 operating on 240V 50 Hz. Client states that this is a pre-production unit.
9 The schematics of the power-related section of the EUT were reviewed, including the input power
connections (p.1-7), current limiting devices, undervoltage/overvoltage/unbalance trip (N/A, except possibly
in washer pump), on/off controls (p.12), emergency off controls, transformers, motors (fan, pump motor ),
control-related power supplies, power supplies (diagnostic signals on p.22-24), power-related
reset circuits, power-related component protective circuits (noise filter, isolation transformer).
9 The SEMI F47 “idle” mode was determined by the client to be the EUT’s standby mode. The SEMI F47
“Most sensitive process state” was determined by the client to be the EUT’s full-powerwash/step mode. After
some testing, it was determined that the standby mode was highly insensitive to sags, and testing should be
concentrated on the “Most sensitive process state”.
Note: The EUT has several power supplies connected single-phase from phase to phase; however, the
schematic does not indicate which pair of phases are used. Therefore it is important to check every
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phase when testing for sags on individual phases -- different units may be wired differently.
Equipment under test (continued)
9 The client determined that indications of equipment failure or misoperation criteria included: spin-down;
EUT shutdown; fault light(s); or error messages on the CRT.
Note: The EUT had a nameplate rating of 60A per phase, and prior to testing the client expected a maximum current
draw of 50-55 A per phase under worst-case, intermittent conditions. However, during several tests (Test #12, 14, 25,
37, 39, 46, and 50) the EUT drew more than 70A rms immediately following a voltage sag. The soft-start currentlimiting circuits were apparently disabled once the EUT had completed its power-up cycle, and the filter capacitors in
the power supply required all available current for re-charging.
Graph 1: The EUT draws more than 125A instantaneous (full scale of the
current recording) at the conclusion of a brief voltage sag, well in excess of
its 60A rms (equivalent to 85A instantaneous) nameplate rating.
Note: In the following table, “HVPS” is an abbreviation for “High Velocity Pressure Sprayer”.
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Table 1: Sag Immunity Test Results for Model 2200, S/N 99SW4502
Test
#
1
2
V1-V2
% nominal
50
70
V2-V3
% nominal
100
100
V3-V1
% nominal
100
100
DUT
mode
Stndby
Stndby
Sag
duration
(cycles)
12
30
Result
Pass
?
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
70
80
0
80
90
50
70
80
0
80
80
80
90
45
0
0
0
45
45
45
65
75
0
0
75
85
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
45
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
Stndby
Stndby
Stndby
Stndby
Stndby
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
60
60
1
600
-12
30
60
1
600
600
600
-14
10
5
5.5
60
5
300
35
61
2
2
660
-14
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
Pass
-Pass
-Pass
Pass
Fail
Fail
-Fail
Pass
Fail
Pass
Pass
Fail
Pass
Pass
Pass
Pass
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
65
75
0
75
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
100
45
65
75
0
75
50
0
0
0
0
0
50
55
60
55
50
50
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
Oper.
35
65
2
660
14
35
65
2
660
12
1
1.5
2
2
2
12
10
10
10
12
12
Pass
Pass
Pass
Pass
Fail
Pass
Pass
Pass
Pass
-Pass
Pass
Pass
Pass
Pass
Fail
Fail
Pass
Pass
Fail
Fail
100
100
100
100
100
100
100
100
50
60
55
50
Oper.
Oper.
Oper.
Oper.
12
10
10
12
Fail
Pass
Pass
Fail
56
57
100
100
100
100
50
50
Oper.
Oper.
12
14
Fail
Pass/
Fail
6
Comments
Blower motor underspeed;
probably unrelated to sag
Input overcurrent trip. >70A rms
Output overcurrent trip. >70A rms
Shut down.
Shut down.
Test cancelled.
Shut down.
Shut down.
Shutdown. Also input overcurrent
Note – Test #29 - #33, sags were
L2-L3; file channels are mislabeled
HVPS fault
HVPS fault, overcurrent trip
Output overcurrent trip
HVPS fault
HVPS fault, output overcurrent trip
HVPS fault
HVPS fault, output overcurrent
Test #51 not performed
HVPS fault. Test stored in File #51
HVPS fault. Breakout box used.
One pass w/ no trip, not recorded.
HVPS fault. More channels
OK @ 10 cycles. See data file.
Note 1: This point (50% sag for 12 cycles) initially failed for L3-L1 sags with a “High Velocity Pressure
Sprayer” fault, but passed for L1-L2 and L2-L3 sags.
General observations about the test results
9 For almost all of the required SEMI F47 sags, the EUT passed with substantial margins, as
indicated by the green results in areas where the EUT is not required to operate.
9 For all of the recommended SEMI F47 sags, the EUT passed with substantial margins.
9 The 50% sag for 12 cycles on L3-L1 failed. Further investigation is described below.
7
Further investigation of 50% sag, 14 cycles, L3-L1
Graph 2A: Voltage output.
14 cycle sag to 50%.
Graph 2B: Current into EUT.
Note large current surge at
conclusion of sag.
Graph 2C: +24V auxiliary supply
in High Velocity Pressure Sprayer
(HVPS). This supply is labelled as
both +24V and +30V at various
places on the schematic. It is
derived from L3-L1 in the EUT.
Graph 2D: Aux Power Supply Fault
(logic signal). This signal comes
from a comparator that compares a
reference voltage to the output of a
linear regulator fed by the +24V
auxiliary supply. When the input
voltage (Graph 2C) drops below the
minimum voltage required by the
linear regulator, this Fault signal is
generated, causing the EUT to shut
down.
These graphs show a 14-cycle sag generated during Test #57. The EUT shut down due to a High Velocity Pressure
Sprayer Fault. Recommendation: increase the energy storage capacity of the 24V auxiliary supply.
Conclusion: Re-testing with increased filter capacitor (from 1000uF to 2200 uF) in +24Vdc auxiliary
supply in High Velocity Pressure Sprayer demonstrated that the EUT easily passed all of the SEMI
F47 requirements.
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Conclusions
1. IntraTech Model Model 2200, S/N 99SW4502, as modified and tested May 2000, met all of the
voltage sag immunity requirements of SEMI F47.
2. IntraTech Model Model 2200, S/N 99SW4502, as modified and tested May 2000, met all of the
voltage sag immunity recommendations of SEMI F47.
3. IntraTech Model Model 2200, S/N 99SW4502, as modified and tested May 2000, had reasonable
margins beyond the requirements of SEMI F47.
4. Manufacturer states that the tested model is typical of Intratech 2200 Series with 240V 3-phase 50 Hz
power.
_________________________________
Alex McEachern 14 May, 2000
Power Standards Laboratory
http://www.PowerStandards.com
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