ML18142A102
| ML18142A102 | |
| Person / Time | |
|---|---|
| Site: | Surry, 05000000 |
| Issue date: | 05/28/1981 |
| From: | Kamerman L VALIDYNE ENGINEERING SALES CORP. |
| To: | |
| Shared Package | |
| ML18130A405 | List: |
| References | |
| ATP454, NUDOCS 8411200421 | |
| Download: ML18142A102 (9) | |
Text
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REVISIONS LTR ECO DESCRIPTION A
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SIGNATURE DATE
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QUAL CONTROL DATE APPROVED 5/28/81
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TITLE PS171-Q2 Power Supply for MC170 Acceptance Test Procedure ATP454 SHEET 1
- OF 7
REV A
8626 WILBUR AVENUE
- NORTHRIDGE. CA 91324 * (213) 886*8488
- Telex No. 65-1303 VEC 304-11/80
AlidyNE l!NCIINam111NG COlll'0-110N
- 1. 0 SCOPE 2.0 3.0
- 3. 1 3.2 3.3
.4 This document defines the Acceptance Test Procedure (ATP) for PSl71-Q2.
Either the end item ATP or special test procedure appropriate to a particular contract will define any additional requirements.
A sample test report to be used with this ATP is contained in Appendix A.
EQUIPMENT REQUIRED Table 1 lists the test equipment required to perform the ATP.
TABLE 1 E
t R
. d f ATP
-, qu,omen equ1re or Part No.
t Description Manufacturer or Model Alternate Tester Tl097 Validyne Tl097 None Variac Superior Electric Co 116 Commercial Equivalent Digital Multimeters-2 Data Precision DP248 Commercial Equivalent Osei 11 escape B & K 1470 Commercial Equivalent Frequency Counter Hewlett Packard 5314A Commercial Equivalent Meg ohmmeter General Radio 1864 Commercial Equivalent PRELIMINARY PROCEDURE Refer to final assembly drawing no. Ql0139 and wiring drawing no. Ql0196 and visually inspect the unit for completeness and accuracy.
Make sure the soldered connections are not touching the metal structural parts, especially under the bridge rectifier printed circuit board (centre board of the complete assembly).
Visually check the fuse rating of Fl on transfonner board, it should be rated at lA and check R31 and R32, on regulator board, these should be lOM ohms and lk ohm respectively.
Set DMM to measure kOhms at lkOhm range, connect DMM to chassis ground and ground pin of the power plug.
The DMM should read 0.0+/-0.lohm.
Connect megohmmeter between HI and chassis ground and set it to lOOOV and 10 Megohm range.
Measure the isolation resistance and it should be lOMegohm minimum.
NUMBER ATP454 SHEET 2
OF 7
REV A
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SWITC#ES l.( l,/. r (PS/71)
TEST CONNECTORS--
12,I' /S P/NS SYNC.3 K J-lz 25 J/.4C POWER GND VAR/AC DVM AC LINE PWR
/03. 5- /2~. 5 VAC@ ~O#z G
+
-*SCOPE l)VM
'-~--+-~~--~-Ac/oc FIGURE.I NUMBER COUNTER J-/P ATP 454 SHEET
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- DF -~-
1 REV A
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AlidyNE ENCIINUIU-COIIPOIIAT10N 3.5 Connect megohmmeter between LO and chassis ground and repeat isolation resistance measurement.
I-t should be 10 megohm min.
3.6 Connect megohmmeter between chassis ground and output ground~ set it to lOOV and repeat isolation resistance measurement.
It should be i.6 Megohm min.
Disconnect megohmmeter.
4.0 INITIAL TEST SET-UP 4.1 Connect the digital multimeters (DMM) PS171-Q2, variac, frequency counter and oscilloscope as shown in figure 1.
4.2 Adjust the variac to lowest dial. setting._
4.3 Plug in the variac to 115V AC socket.
Adjust the variac output to 115V AC.
4.4 Set carrier, +15 and -15 load/open/short switches, on tester, to open.
Adjust +15V, -15V, carrier voltage and carrier frequency as follows:
.4.1 Adjust +15V potentiometer (R7) on PSl71-Q2 to obtain -15.00+/-0.02V DC at +15V DC jacks on tester.
4.4.2 Adjust -15V potentiometer (Rl3) on PS171-Q2 to obtain -15.00 +/-0.02V DC at -15V DC jacks on tester.
4.4.3 Adjust 5V AC potentiometer (R42) on PS171-Q2 to obtain 2.500+/-0.005V AC at carrier 0A on tester. Confinn 08 is equal to 0A+/-0.002V AC.
4.4.4 Adjust 3kHz potentiometer (R34) to obtain 3.000+/-0.006kHz at connectors on tester at the carrier terminals and check the sine waveform on the oscilloscope, it should be noise free.
5.0
- 5. l FUNCTIONAL TESTS Load Regulation All measurements are taken at tester jacks.
5.1. l Measure the +15V f>c output and call it El.
~ Set +15 load/open/short switch to load and measure the +15V DC output again and call it E2.
The regulation (El-E2) should be less than 15mVDC.
Indicate acceptance on test report with checkmark.
Set +15 open/load/short to open position.
NUMBER ATP454 m:
7 REV A
(
AlidyNE 1!-INEl!IIINQ COlll"OIIATION 5.1.3 Measure the -15V DC output and call it E3.
Set -15 load/open/short switch to load position and measure -15V DC again and call it E4.
The regulation (E3-E4) should be less than 15mV DC.
Indicate acceptance on test report with checkmark.
- 5. 1.4 Set -15 load/open/short switch to open position.
- 5. 1.5 Set the DMM to read AC voltage and connect com. to output ground and HI to ~A output.
5.1.6 Measure 2.5 VAC carrier and call it ES.
Set carrier load/open/short switch to load position and measure carrier voltage again and call it E6.
The regulation (E5-E6) should be less than 7mV AC.
Indicate acceptence on test report with checkmark.
Disconnect DMM.
5.2 Line Requlation All output measurements are made at connectors on tester and at 100% load.
5.2.1 Set +15, -15 and carrier load/open/short switches to load positions.
. 2.2 Connect DMM to +15 output terminals and set it to read VDC.
5.2.3 Raise the AC line voltage, by adjusting variac, to 126.5V AC and note the +15V DC reading.
Lower the AC line voltage to 103.5V AC and again note the +15V DC reading.
The difference bet~~en two readings should be less than lOmV DC.
Indicate acceptance on test report with checkmark.
Disconnect DMM.
5.2.4 Connect DMM to -15 output terminals.
5.2.5 Note the -15V DC reading. Raise the AC line voltage to 126.5V AC and again note the -15V AC reading. The difference between two readings should be less than lOmV DC.
Indicate acceptance on test report with checkmark.
5.2.6 Connect DMM to carrier ~A terminals and set it to read AC volts.
5.2.7 Measure and note the 2.5V AC.
Lower the AC line voltage to 103.5V AC and again measure and note 2.5V AC.
The difference between two measurements should be less than or equal to 2mV AC.
Indicate acceptance on test report with checkmark.
Disconnect DMM from tester.
5.3 Output Ripple Unless otherwise specified all measurements are done at 103.SV AC li.ne, at 100% load on all outputs and at connector jacks on tester.
NUMBER ATP454 SHEET 5
OF 7
REV A
(
AlidyNE ENOINHIU-COlll'O-TION 5.3.l Connect DMM to +15V DC output and measure the AC mV, the reading should be less than or equal to 5mV AC.
Indicate acceptance on test report with checkmark.
Disconnect DMM.
5.3.2 Connect DMM to -15V DC output and measure the AC mV the reading should be less than or equal to 5mV AC.
Indicate acceptance on test report with checkmark.
Disconnect DMM.
5.4 Short Circuit Test 5.4.1 Adjust the AC line voltage to 115V AC.
5.4.2 Connect oscilloscope to +15V DC terminals, set it to DC coupling and 0.5V/Div. range.
Set +15 load/open/ihort switch on tester to short. The output pulse, on oscilloscope, should be 60+/-20mSec, 0.75+/-0.2Vp-p (volts peak to *peak).
Indicate acceptance with checkmark on test report.
5.4.3 Set +15 load/open/short switch to open.
Connect oscilloscope to -15V DC terminals instead of +l5V DC.
Set -15 load/open/short switch to short. The output pulse on the _oscilloscope should be 60+/-20mSec and 0.75+/-0.2Vp-p.
Indicate acceptance with checkmark on test report.
5.4.5 Set -15 load/open/short switch to open.
5.4.6 Set carrier load/open/short switch to short. The carrier LED should be off in short position and should be fully on when the switch is either set to load or open position. Indicate acceptance with checkmark on the test report.
5.5 Carrier Disable Test 5.5.l Connect DMM to carrier terminals on the tester and set to read AC volts.
5.5.2 Set carrier ON/OFF switch to OFF position, the DMM should read zero and the carrier LED should be off. Indicate acceptance on test report with checkmark.
5.5.3 Set Carrier ON/OFF switch to ON position. The carrier should turn fully on and the carrier LED should light up.
Indic.ate acceptance on test report with checkmark.
NUMBER ATP454
-~~n~6~ OF 7
REV A
AlidyNE ENGINHIII-COll~IIAT10N SAMPLE TEST REPORT NUMBER
\\
ATP454 SHEET
_J_
OF 7
REV A
(
A idyNE ENOINEE.. INO CO.. P'O.. AT10N TEST REPORT S/0 ASSY PS171-Q2 Power Supply for MC170 CUSTOMER W/0 TESTED BY Paragraph/Step
- 5. 1. 6 Carrier regulation 5.2 Line Regulation 5.2.3 +15V DC regulation
- 5. 2. 5 -lSV DC regulation 5.2.7 Carrier regulation 5.3 Output Ripple 5.3. 1 +15V ripple 5.3.2 -15V ripple 5.4 Short Circuit Test 5.4.2 Voltage pulse & on time 5.4.4 Voltage pulse & on time
(+15V)
(-15V) 5.4.6 Carrier LED (with short)
Carrier LED (without short) oc SERIAL NO.
DATE Accepted NUMBER ATP454 Specification 15mVDC max.
15mVDC max.
,,JmV AC max.
lOmVDC max lOmVDC max 2mVAC max 5mVAC max 5mVAC max 0.75+/-0.2Vp-p 60+/-20mSec
- O. 7 5+/-0. 2Vp-p 60+/-20mSec OFF ON REV A
SHEET 1
OF 2
8626 WILJ~UR AVE!'JUE
- NORTHBJDCiF~ C~!l1~?4 *
!213\\ 886-84RR
- T"'"" Nn~n5-1~n~
A idyNE TEST REPORT ENOINEEIIINO COlll"OIIAT10N S/0 ASSY PS171-Q2 Power Supply for MC170 CUSTOMER W/0 TESTED BY Paragraph/Step 5.5 Carrier Disable Test 5.5.2 Carrier LED 5.5.3 Carrier LED QC SERIAL NO.
DATE Accepted NUMBER ATP454 SHEET 2
Specification OFF ON OF 2
REV A