Sun Moon SM-8800 Instructions for use

SM-8800 Multi-Function Electronic load (10 in 1)
Hardware User’s manual
Auto/ATE Version
Sun Moon Technology Corp.

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Table of Contents
1. General information
1-1 Standard configuration (Page2)
1-2 Specification (Page2)
1-3 Temperature protection (Page 3)
1-4 Front panel description (Page4)
1-5 Rear panel description (Page5)
2. Installation
2-1 SM-8800 power cord connection (Page6)
2-2 SM-8800 AC line connection (during self-coupling transformer adapted) (Page6)
2-3 SM-8800 connection with S.P.S. (Page7)
2-4 SM-8800 connection with oscillograph (Page7)
2-5 SM-8800 rear panel I/O Port connection with external control switch (Page7)
3. Operation panel description
3-1 Front panel description (Page11)
3-2 Display window description (Page12)
3-3 Rear panel description (Page13)
3-4 Keypad I1 ~ I10 setting and operation (Page14)
3-5 Read the result of AC Power Meter under manual operation mode
(※Only the model containing power meter works) (Page15)
3-6 Start the button function (Page 15)
4. Automatic test description
4-1 Test items specification (Page16)
5. Internal parameter Setting
5-1 Shift+A: Select Manual or Auto operation mode (Page21)
5-2 Shift+B: Set total test channels (Page24)
5-3 Shift+C: Set Auto- test parameters (Page25)
5-4 Shift+D: Set other shared parameters (Page33)
5-5 Shift+E: Fast set current in I1~I10 and maximum and minimum of voltage (Page41)
6. Deletion and Reset of machine parameters
6-1 Deletion and Reset of machine parameters, OPP retaining setting, and information setting by
downloader (Page 45)
2011/8/2 English Ver 1.38

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1. Introduction
SM-8800 is a multi-function electronic load machine designed for every kind of S.P.S. It especially
provides departments like production, examination or development with easy manipulation board
displaying complete information. SM-8800 focuses on ATX Power and strengthens test function so
users can test a whole ATX Power once. We concern the hardwork of operators for their long working
hours. Therefore, SM-8800 displays bright numbers and English words. In automatic version, only
need to press “OK”. This complete and multi-function design offers operators a clean workstation.
1-1 Standard packing
Name Unit Number Model Unit Number
Model: SM-8800 mainframe Pcs 1 SM-8800 manual Pcs 1
Power cord (U.S. type) Pcs 2 BNC cable (curved) Pcs 2
4P socket Pcs 3 ATX-6pins Pcs 1
ATX-8 p ins s o cke t Pcs 1 ATX-24pins Pcs 1
Fuse10A(5x20mm) Pcs 3 Fuse 10A (2x20mm) Pcs 3
Chuck tightener of BNC line Pcs 3 Airline socket Pcs 1
1-2 Specification
DC part
channel VA VB VE VG VH VC VD VF VI VJ
volt 80V 0V ~ 40V
current 0~40A 0 ~ 60A 0 ~ 40A 0 ~ 4A 0~8A 0 ~ 20A
watt 360W 300W 360W 40W 180W
DC voltage error range
Standard Full scale voltage Error Range
40V 40V + 0.3% + 2C
DC current error range
channel Full scale current Error Range
VA 40A + 1 % + 2C
VB 60A + 1 % + 2C
VC 4A + 1 % + 2C
VD 4A + 1 % + 2C
VE 60A + 1 % + 2C
VF 8A +1 % + 2C
VG 40A + 1 % + 2C
VH 40A + 1 % + 2C
VI 20A + 1 % + 2C
VJ 20A + 1 % + 2C

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Timing measurement precision
Test Item Maximum Error Fange Test Frequency
POWER GOOD 999.9mS + 0.5% + 2C
POWER FAIL 999.9mS + 0.5% + 2C
SET UP 2999.9mS + 0.5% + 2C
HOLD ON 2999.9mS + 0.5% + 2C
ON RING 9 1uS
OFF RING 9 1uS
AC part
Line AC Input
Internal AC source 110V+10% 230V+10%
Frequency 50/60HZ
Fuse 2A (5 x 20 mm) 2A (5 x 20 mm)
Maximum of power consumption 100W
Line AC + Maximum of S.P.S. power consumption 2020~3020W
(External Source
Input)
AC source 0 ~ 265V
Frequency 30 ~ 150HZ
Fuse 10A (5 x 20 mm)
Max AC voltage (RMS) 270V + 0.5% + 2C
Max AC current (RMS) 10A + 0.5% + 2C
Outline
Dimension 450 x 165 x 490 mm(excluding handle and foot rubber)
Weight 22KGS
Annotation 1
Version Ver3.00 Ver4.00 Ver3.01 Ver4.01
Line AC + Maximum of S.P.S. power consumption 2020W 3020W
1-3 Temperature protection
After SM-8800 is booted, the fan is at low speed. At this time, if the temperature increases
above 55℃, the fan changes into high speed. If the temperature decrease below 40
℃ at high speed, the fan will change into low speed.

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!Front panel!

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Rear Panel!

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2. Installation
2-1 SM-8800 and power cord connection
Please take out SM-8800 from the package. You can see a selection switch. (Please elevate
SM-8800 so that you can see the selection switch of 110V /230V) If indoor voltage is AC 230V,
please switch “Line Select” to 115V. Insert AC Power cord into the socket of SM-8800 rear panel
“Line AC Input”. Likewise, insert the other end into the indoor socket. Ground “F.G.” of SM-8800
rear panel so that it can prevent operaters from electric shock due to electric leackage. Refer to
figure 2-1.
2-2 SM-8800 and external AC source (Self-coupling transformer) connection :
Switch “Source Select” to “EXT” on SM-8800 rear panel. Refer to figure 2-2. Insert the
airline socket connected cord into airline socket “EXT Source Input” to connect IN-2 and
COM to output of self-coupling transformer. Insert output of self-coupling transformer into
the indoor socket.
zFigure 2-1 Power cord and F.G terminal connection
zFigure 2-2: UUT and external AC
source connect to instrument

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2-3 SM-8800 and S.P.S. connection :
Take out AC power cord from the appendix. Refer to figure2-2. Use AC power cord to
connect “To S.P.S.” socket of SM-8800 rear panel and the socket of S.P.S. AC power input.
Refer to figure 2-4. Insert the output of S.P.S. DC into the socket of SM-8800 front panel in
the lower left side (such as ATX, ATX-20pin or 4P socket)
2-4 SM-8800 and Oscilloscope connection
Use the BNC cable in the appendix to connect BNC socket of SM-8800 and Oscillascope.
2-5 SM-8800 “I/O Port” (Input/Output) signal and external control circuit connection
2-5-1 Input signal and connection of external switch on I/O port of SM-8800 rear panel. Arrange
a control circuit. (Refer to figure 2-5-1a) Connect control switch (like button of pedal) with
related circuit on “R.C.” and “R.C. COM” ends of I/O port on SM-8800 rear panel. (Connection
mistake may damage the internal circuit of SM-8800.) Figure 2-5-1b is the output circuit of
“R.C. COM” ends on I/O Port”
zFigure2-4 Oscillograph and
output of S.P.S. connection
Figure2-3 Circuit diagram ofAC portion

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2-5-2 OUT1~OUT4 of I/O Port and external device connection
Please arrange an external control circuit designed according to your need. (Refer to
Figure2-5-2.) Connect the circuit to the terminals, OUT1, OUT2, OUT3, OUT4 and
COM of I/O Port (Refer to Figure2-5-2a.) (Connection mistake may damage the internal
zFigure2-5-1a External control switch
connection
zFigure5-2-1b SM-8800 and R.C. external control switch
connection

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circuit of SM-8800.) Figure 2-5-2b is output circuit of Out1~4 and COM in I/O Port in
SM-8800 rear panel.
zFigure2-5-2a SM-8800 and Out 1~4 external control connection
zFigure2-5-2b Output circuit of Out1~4 in “I/O Port” socket on rear panel and “COM” terminal

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2-5-3 PASS/FAIL output terminals of I/O Port and external control device connection
Please make a control circuit that is designed according to your need for external device,
the circuit in Figure2-5-3is for your reference. Connect the circuit and I/O port as shown in
Figure2-5-3. Please pay attention in this process, wrong connection may damage the
instrument.
zFigure2-5-3a I/O Port and external device connection
zFigure2-5-3a Output circuit of “PASS/FAIL” in I/O Port socket on rear panel and
“PASS/FAILCOM” terminal

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3 Operation panel description
3-1 Keypad of front panel description :
1. Power：AC on/off switch for SM-8800
2. I1/I6 ~ I5/I10：There are 10 selections of pre-set load current and power maximum and
minimum. (Selections can be extended to 20 in automatic test mode.) When the switch is on,
the mode I1~I5 is default. Press keyboard “Shift” to switch to I6~I10. When LED light
twinkles, press the button “I6~I10 to select load you need. Shift+I1 can be combination
button of dynamatic load.
3. Amp：Set and read the current
4. V-Hi / V-Lo：When V-Hi is light, set and read the voltage maximum.When V-Lo LED is
light, set and read the voltage minimum.
5. Vol / Watt：When Vol is light, the latest voltage is displayed. When Whatt is light, DC
power is displayed. (Maximum of power displayed is 1590W.)
6. PSON：This is a switch especially designed for ATX Power. When S.P.S. AC is ON and
PSON is light, every channel of S.P.S. outputs. When PSON is not light, only +5VSB(VF)
keeps outputting. Other channels stop outputting.
7. Shift：This is used for combination button. The way is Shift + another button. The way of
operation is keep pressing Shft and then another button. Then, leave two buttons at the same
time. For example, Shift + A/6 is keep pressing Shift and then A/6. Finally, leave two buttons
at the same time.
8. A/6 ~ F/9、G /▲、H /▼：Short test of VA~VH (Short test of VG and VH needs to be set at
channel 8, 10 so that the displayed voltaged can be operated.) Combination buttons of setting
functions are below. (Only pressing the buttons in the standby mode works out.)
Shift+A：Switch manual test and automatic.
Shift+B：Set channels.
Shift+C：Set parameters and edit automatic test.
Shift+D：Set test parameters.
Shift+E：Fast set current I1~ I20 and voltage maximum and minimum.
Shift+F：Enter the password。
9. OPP：Over power Protection test (Maximum is 2260W~3260W)。
10. On/ Esc：Turn on S.P.S. AC Power (Output socket is To S.P.S on the rear panel) and set
multi-function buttons.
11. Off / Enter：Turn off S.P.S. AC power and set multi-function buttons. When enter Shift+B,
Shift+B, Shift+C, Shift+D, Shift+E or Shift+F to set functions, press this button to save all
changed parameters and back to the standby mode.
12. ◄、►：Control circulating movement of display window.
13. ▲/Page Up、▼/Page Down：To increase or decrease the setting, these buttons can be used
as short button of VG and VH at Vol gear. Move to another page with Shift as combination
button such as “Shift+ Page Up” and “Shift+ Page Down”.
14. Waveform Monitor：6- band switch. Through selecting BNC connection, waves of two
channels to osillograph. Refer to figure2-4.

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3-2 Display window description (Refer to front panel)
1. MESSAGE / VI：To display voltages comparison, the result of time test, the information
and result of automatic test, DC overall power, setting desceiption of the page, and the
expansion of the 9th channel (VI) load.
2. VALUE / VJ：To display voltages comparison, the result of time test, the information and
result of automatic test, DC overall power, setting desceiption of the page, and the
expansion of the 10th channel (VI) load.
3. VA、VB、VC、VD、VE、VF、VG、VH、VI、VJ：To display voltages, currents, powers
and setting information for each channel.
4. VG：To display the AC voltage and expansion of channel 7th load.
5. VH：To display the AC current and expansion of channel 8th load.
6. When the power is on, our company name turns up on the left screen. Refer to Figure3-2a.
zFigure3-2a
Later on, machine model and type turn up on the left screen. If the machine is a automatic
type (AUTO), model and type will be displayed on the screen according to total amount of
channel “Shift+B”. Refer to Figure3-2b, Figure3-2c and Figure3-2d.
zFigure3-2b (6-channel automatic type)
zFigure3-2c (8-channel automatic type)
zFigure3-2d (10-channel automatic type)
If the instrument is ATE (Control by computer) type, we provide 3 types such as 6
channels, 8 channels and 10 channels in one mainframe, the display messages are shown as
Figure3-2e Figure3-2f and Figure3-2g as following:
zFigure3-2e (e.g.ATE 6-channel was set up)

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zFigure3-2f (ATE 8-channel type)
zFiugure3-2g (ATE 10-channel type)
7. After machine model and type are displayed, machine is in the standby mode. Refer to
figure 3-2h, figure3-2i or figure3-2j. (Please refer to 5-2 parameters setting.) Standy mode
means the moachine is:
zAC OFF
zS.P.S. does not output voltage to the machine.
zOne of LED lights (in I1/I6~I5/I10) blinks and one of lights (in Amp, Vol, Watt, V-Hi
or V-Lo) blinks.
8. Three figures below are manual standby modes. According to total amount setting of
channel “Shift+B”, figure 3-2h, figure 3-2i or figure3-2j is displayed. If want to switch to
standby mode, refer to 5-1.
zFigure3-2h (e.g. 6-channel was set up)
zFigure3-2i (e.g. 8-channel was set up)
zFigure3-2j (e.g. 10-channel was set up)
3-3 Rear panel description
1. To S.P.S.：To provide AC power for S.P.S.

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2. Line AC Input：This is input socket of machine power. When “Source Select” is selected at
“INT”, AC power of S.P.S. is provided by this.
3. Line：To protect power fuse of machine.
4. Line Select：Select input voltage of AC power. The place of switch is under the base of Line
Select→Under Base.
5. Source Select：Select AC source for S.P.S, When INT is selected, AC source of S.P.S. is
provided by Line AC Input. When EXT is selected, AC source of S.P.S. is provided by EXT
Source Input.(In manual mode, only IN-2 and COM can input AC line voltage.Refer to
Figure2-2. In auto mode , 3 external AC inputs are available)
6. EXT Source Input：AC source input provided by external source.
7. AC-2：External AC source fuse input by “IN-2＂.
8. AC-1、AC-3：External AC source fuse input by “IN-1”and “IN-3”.
9. F.G：Grounded terminal of the machine can protect operators from electric shock.
10. RS-232 Port：Socket connected with the computer.
11. I/O Port：This can output and input various signals. Each description is below:
Output：To send a 4-bit Hi or Low signal to control external devices:
PASS/FAIL：An automatic test is completed. When the test result is PASS, a pulse signal is
sended from this socket. When the test result is FAIL, two pulse signals are sended. (Refer
to Figure3-3) This signal can be used to control external devices.
zFigure3-3
Remote Control：The socket to connect external control Switch. In auto test mode, you
can press the external control Switch to make continual test for next
UUT, as shown in 2-5 Connection.
3-4 Setting program to I1 ~ I10 under Stand-to Mode (e.g. Shift+B : 6 channels was set up )
1. Press the button I3 in standby mode (I3 is light.) to start setting I3 current and voltage
maximum and minimum.
2. Press the button Amp (Amp is light) to set current of 6 channels DC so the number in
channel VA blinks. Press the button “▲” or “▼” can change the current of channel VA.
Press the button “►” to switch to channel VB so the number in channel VB blinks. Press
the button “▲” or “▼” can change the current of channel VB. The rest may be deduced by
analogy. If press the button “◄” , blinking channel will move back.
3. Press the button “V-Hi” (V-Hi is light.) to display the current of 6 channelsVA~VF DC and
judge voltage maximum and minimum setting, so the number in channel VA blinks. Press
the button “▲” or “▼” to change channel VA maximum. Press the button“►” to switch to
channel VB so the number in channel VB blinks. Press “▲” or “▼” to change the
maximum of channel VB. The rest may be deduced by analogy. If press the button “◄”,
blinking channel will move back.
4. Press the button “V-Low” (V-Low is light.) to display the current of 6 channelsVA~VF DC

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and judge voltage minimum and minimum setting, so the number in channel VA blinks.
Press the button “▲” or “▼” to change channel VA minimum. Press the button“►” to
switch to channel VB so the number in channel VB blinks. Press “▲” or “▼” to change the
maximum of channel VB. The rest may be deduced by analogy. If press the button “◄”,
blinking channel will move back.
5. Set current and voltage maximum and minimum. When setting is completed, it will be
saved automatically..
zFigure3-4
3-5 Read test result of AC power meter in manual mode (Only the type including power meter
works)
Press the button “On” in standby mode to start testing related parameters of power meter.
Press Shift+I5 to display 8 test results of power meter. (Refer to figure 3-5 and table 3-5.) AC
power of different load can be read by switching I1~I10. Press another button to quit this
window. If need to read parameters of AC power meter, press Shift+I5.
Press Shift+I4 to start Vp-Hold and Ip-Hold function to remain VA and VB in maximum of Vp
and Ip in test result mode of AC power meter.
zFigure3-5
Table3-5
Channel VALUE Description
VA FREQ Frequency
VB VP AC peak value
VC WATT Power (RMS)
VG VRMS AC voltage(RMS)
VH IRMS AC current(RMS)
VD EFFI Efficiency
VE IP AC voltage peak value
VF EQUA Power factor
3-6 To start button lock function
Press the button Shift+I2 to start button lock function. Only AC On and AC Off works. Others
operation fails. If press the button Shift+I2, button lock function can be turned off and back to
the original mode.

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4. Automatic test description
There are 23 automatic test items for users to edit “test program”. 50 items can be edited in test
program (including action and test items.)When the test starts, test programs are operated by sequence.
When all tests are completed, it displays PASS or FAIL and the information of test results can be read.
When S.P.S. fails to boot, the machine stops testing and the screen displays S.P.S. Down.
This is an automatic test system of power supply. All test programs can be edited and operated
according to users’ need. Items and numbers are provided by automatic test system. (No.0, No.13~19 and
No.20 and 23 are action items; No.1~12 and No.20 and 21 are test items)
※In test report, only test items have test results. No test result for action items.
NO Test items Name of test items Simple description
0. END END Test is completed.
1. LOAD Loading Test Static load test
2. SETUP SetUp Time Test Time test of stable booting
3. PG. Power Good Time Delay time test of Power Good signal
4. ON.RING. ON Ring Times Ring times of Power Good from Low to High
5. HOLD.ON Hold-On Time Time test of stable shutting down
6. PF Power Failure Time Advanced time test of unsuccessful Power Good
signal
7. OF.RING. OFF Ring Times Test Ring times of Power Good from High to Low
8. OPP Over Power Protect Test Protection test of over power
9. OCP Over Current Protect Test Protection test of over current
10. WAIT Wait Waiting for test
11. SHORT Short Protect Test Short protection test
12. PS OFF.T. Ps Off Test Shutting down signal test of ATX Power
13. LINE.IN Line In Select the AC source for S.P.S.
14. AC ON AC ON Turn on the AC source of To S.P.S socket
15. AC OFF AC OFF Turn off the AC source of To S.P.S. socket
16. PS ON PS ON Short of PS input toward ground
17. PS OFF PS OFF Open of PS input toward ground
18. OUTPUT OutPut To output 4-bit signal Hi or Low. The first bit is the
test result of former one.
19. LOOP Loop To rtepeat testing from the first item of program
20. RISE Rise Time Test Time test of stable booting
21. AC METER AC parameter test Parameters judgement of AC power meter. (Only the
type with power meter works.)
22. AC.HOLD AC Meter Hold On To start Hold On function of AC power meter
23. HOLD.OF AC Meter Hold Off To stop Hold On function of AC power meter

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4-1 Test items specification (Item 2~7 are the part of time test. Refer to Figure4-1a)
0. END
The test is completed. AC OFF and PsOff are controlled. Test result is displayed.
1. Loading Test
To wait for Steady time according to the load set in Ix. (Refer to 5-3-2) Test value is input voltage of
each channel. If V-Hi>test value>V-Lo, the test result will be PASS. If not, the result will be FAIL.
zFigure4-1a
2. Setup Time Test
Boot the machine according to the load set in Ix. Zero the timer when input power is turned on. (AC
phase is at 0 degree) and start timing at the same time. Keep testing +5 voltage of voltage terminal
whether it equals to the voltage set by VREF or not. If voltages are the same, voltages of the timer
will be recorded. This is the test value of Setup Time. If the maximum of Setup Time>test value>the
minimum of Setup Time, the test result will be PASS. If not, the result will be FAIL.
3. Power Good Time Test (P.G.Time Test)
Boot the machine according to the load set in Ix and keep testing +5 voltage of voltage terminal
whether it equals to the voltage set by VREF or not. If voltages are the same, zero the timer and start
timing at the same time. When Power Good signal of S.P.S. changes from Low to High, the value of
the timer is recorded. This is the test value of P.G. Time. If the maximum of P.G. Time>test value>the
minimum of P.G.Time, the test result will be PASS. If not, the result will be FAIL.
4. ON Ring Times Test
Boot the machine according to the load set in Ix. The machine keeps monitoring Power Good signal
of S.P.S. output changed from Low to High. The valu is recorded. This is the test value of P.G. Ring.
If the maximum of P.G. Ring>test value>the minimum of P.G. Ring, the test result will be PASS. If
not, the result will be FAIL.
5. Hold-On Time Test
Boot the machine according to the load set in Ix and turn off input power of S.P.S. Zero the timer
when S.P.S. power is off. (AC phase is at 0 degree)Then, the machine starts timing at the same time
and keeps testing +5 voltage of voltage terminal whether it equals to the voltage set by VREF or not. If
voltages are the same, voltages of the timer will be recorded. This is the test value of Hold-On Time.
If the maximum of Hold-On Time>test value>the minimum of Hold-On Time, the test result will be
PASS. If not, the result will be FAIL.

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6. Power Fail Time Test (P.F. Time Test)
Boot the machine according to the load set in Ix and turn off input power of S.P.S. Zero the timer
when Power Good signal of S.P.S. output changes from High to Low. Then, the machine starts
timing at the same time and keeps testing +5 voltage of voltage terminal whether it equals to the
voltage set by VREF or not. If voltages are the same, voltages of the timer will be recorded. This is the
test value of P.F. Time. If the maximum of P.F. Time>test value>the minimum of P.F. Time, the test
result will be PASS. If not, the result will be FAIL.
7. OFF Ring Times Test
Boot the machine according to the load set in Ix and turn off input power of S.P.S. The machine
keeps monitoring the times of S.P.S. output Power Good signal changeing from High to Low. Then,
it records voltages. This is the test value of P.F. Ring. If the maximum of P.F. Ring>test value>the
minimum of P.F. RIng, the test result will be PASS. If not, the result will be FAIL.
8. Over Power Protection Test
Boot the machine according to the current set in OPP Step I. The current increases load. Every time
it climbs it stops for a while (Step T). The machine recurds the power. (Input voltage of each
channel from voltage terminal x the last current) If set SET OPPNOL in chapter 6, the last power
will be remained. If select SET OPPMAX, the machine will judge whether the power is higher than
the former one or not and remains the higher one. When the current set by OPP End I is reached or
down protection occurs, the machine stops current from climbing higher. Power maximum of S.P.S.
is recorded. This is the test value of OPP. If the maximum of OPP>test value>the minimum of OPP,
the test result will be PASS. If not, the result will be FAIL.
During the test, if the maximum of OPP≦+5VSB voltage≧the minimum of OPP or load current of
any channel reaches the current set by End Current and down protection of S.P.S. does not occur, the
test value will be recorded as 0. The machine stops testing OPP and records this test result as FAIL.
After OPP test is completed, select one way to turn off S.P.S. according to the setting of Shift+C
amtomatic test in editing page OPTION
9. Over Current Protection Test
Boot the machine according to climbing channels selected by OCP1 and OCP2 (Refer to 5-3-11 for
more detailed setting) to select setting current of corresponding channel in OCP Step I. The current
has increased load since the machine is turned on. Every time it climbs it stops for a while (Step T).
The machine records the current. When the current set by OCP End I is reached or down protection
occurs, the machine stops current from climbing higher. S.P.S current maximum during down
protection is recorded. This is the test value of OCP.
Judgement for one channel selected:
If the maximum of OCP≧Test value≧ the minimum of OCP, the test result will be PASS.
If the test value＞the maximum of OCPor the test value＜the minimunm of OCP, the test result will
be FAIL.
Judgment for two channels selected:
The judgement for OCP1 and OCP2 is the same as the judgement for one channel selected. However,
the test result of OCP1 and OCP must be PASS so the judgement for two channels sleceted may be
PASS. If not, the result will be FAIL.
After OCP is completed testing, select one way to turn off S.P.S. according to the setting of Shift +C

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automatic test in editing page OPPTION.
10. Wait
Boot the machine (according to the load set in Ix) and the program stops operating to wait for
operators to adjust the voltage, read voltage ripple, check vibration test and test materials and
terminals. When press the button AC ON, read input voltage of voltage terminal for each channel. If
V-Hi ≧Vo t a g e ≧V-Lo and P.G. signal is in normal range, the test result will be PASS. If Voltage＞
V-Hi, Voltage＜V-Lo or P.G. signal is abnormal, the test result will be FAIL.
11. Short Protect Test
Boot the machine according to the load set in Ix. Load short selected by short option (Option) checks
whether it is down or not. (To check the voltage set in DOWN+V of Shift+D, ATX/AT set in Shift+C
and Short.M check) If it is down, PASS will be recorded. If not, PASS will be recorded.
When Short Protect Test is completed, select one way to turn off S.P.S. according to the OPTION
setting Shift+C automatic test program in editing page.
12. Ps Off Test
Boot the machine (according to the load set in Ix) and action Ps Off is operated. If +5VSB(VF) of
S.P.S. remains in the range between maximum and minimum. The rest voltages all fall to the setting
voltage set by DOWN V so Ps Off function is normal and judged as PASS. If not, it will judged as
FAIL.
13.Line In (Operation item, no result during the test)
Select external power for providing to S.P.S. First, turn off AC output and then the relay attracted by
the corresponding one. When finish selecting, the following test uses this as power of S.P.S. Relay
stops attracting till Line In Test is selected again and test is completed.
14.AC ON(Operation item, no result during the test)
Set load and select AC source output of “To S.P.S.” on the rear panel as ON.
15.AC OFF(Operation item, no result during the test)
Select AC source output of “To S.P.S.” on the rear panel as OFF.
16.PS ON(Operation item, no result during the test)
Set load and PS ON on input panel grounds as short.
17.PS OFF(Operation item, no result during the test)
PS ON on input panel grounds as open.
18.OutPut(Operation item, no result during the test)
The machine sends a Hi or Low control signal of 4-bit from “Output1~4” of I/O Port on the rear panel.
19.Loop(Operation item, no result during the test)
The machine repeats testing and tests again from the first item of test program. When test is
completed, next item is operated.
20.Rise Time Test (DC/ rise time)
Set Vt and V1(Refer to 5-4-1) before AC power is ON. Zero the timer and boot the machine
(according to the load set in Ix). The machine keeps checking whether Vt equals V1 ot not after S.P.S.
is turned on. When Vt=V1, it starts timing, set V2 and keeps checking whether Vt equals V2 or not. If
Vt=V2, it stops timing and time of timer is recorded. (Refer to figure4-1b) This is the test value of
Rise Time. If the maximum of Rise Time≧Test value≧The minimum of Rise Time, the test result will
be PASS.If Test value＞The maximum of Rise Time or Test value＜The minimum of Rise Time, the