Manson Engineering Industrial SSP-9081 User manual

Copyright © <202101> by<Manson Eng. Ind.l Ltd.>. All Rights Reserved.

SSP-9081 User manual revision 5.0 (7673-9081-0005)
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Table of contents
Precautions and Warning .................................................................................... 3
Warning ........................................................................................................ 3
Caution ......................................................................................................... 3
Operating environmental condition .................................................................. 3
Accessories ....................................................................................................... 4
Introduction ...................................................................................................... 4
Display and Indications ....................................................................................... 5
Display and Indications ................................................................................... 5
Control buttons and knobs .............................................................................. 8
Back Panel ......................................................................................................... 9
Operation Procedures ....................................................................................... 10
Adjusting output voltage and current .............................................................. 10
Set upper voltage limit and upper current limit ................................................ 11
Select and adjust 3 preset value of Voltage and Current .................................... 13
Output ON/OFF and power up ON/OFF setting ................................................ 13
Lock and unlock of front panel ....................................................................... 14
Watt-meter and Amp-meter selection ............................................................. 14
Ramp Up / Ramp Down generator ................................................................. 15
Master/Slave configuration ............................................................................ 20
Factory reset ................................................................................................ 21
Remote control interface selection .................................................................. 21
Remote sensing operation ............................................................................. 21
Specifications ................................................................................................... 22
Command set .................................................................................................. 23
Troubleshooting ............................................................................................... 26

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Precautions and Warning
Keep this manual in a safe place for quick reference at all times.
This manual contains important safety and operation instructions for the correct use of the power supply.
Read through the manual and pay special attention to the markings and labels of this unit and equipment to
be connected.
Pay special attention to these two types of notices used in this manual.
Warning
Caution
Operation environmental condition
Warning
Failure to observe this warning may cause injury to persons and damage to power supply or connected
equipment.
1. Do not use this power supply near water.
2. Do not operate or touch this power supply with wet hands.
3. Do not open the casing of the power supply when it is connected to ac mains.
4. Refer all servicing to qualified service personnel only.
5. Before replacing theAC fuse find out and clear up the cause first.
6. Replace theAC fuse with the same type and rating as the original fuse.
Caution
Failure to observe this warning may result in damage to equipment and Improper functioning of the power
supply.
1. Use a grounded 3 pinAC source.
2. This unit is for indoor use only.
3. Do not operate or place this unit in a humid, dusty, in direct sunlight location or near any heat source.
4. Before plugging into local AC mains, check with the rating label at the back of the unit.
5. Do not block any ventilation openings of the unit.
6. This unit must be used within the specified rating, regular excessive continuous overloading may cause
damage to the power supply.
7. The gauge size of input power cable must be at least 0.75 mm² and the total length of power cable must
not exceed 3m.
8. Input Fuse Recommended: T2AL250V (Time-Lag from 2A)
Operating environmental condition
Relative humidity : 10-80%
Altitude : <2000m
Installation category: Category II
Pollution degree 2
Mains supply voltage fluctuation up to ±10% of the specified operating voltage

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Accessories
Introduction
This Remote Programmable Constant Power SMPS with DC wave forms & Optional Ethernet Card. This
multi-function constant power laboratory grade power supply is capable of generating various DC waveform.
It is ideal for R&D laboratory, burn in test especially for devices where the effect of irregular DC waveform are
important.
A micro-processor is used for such DC waveform. There are 10 voltage generators which can either be panel
programmed or by PC via remote control port. Remote Programming of repetitive cycling, control, monitoring
and data logging can be done via the USB port. With optional Ethernet card it is capable of Internet
connectivity and control, monitor, data log over 250 supplies by one PC. Application software of cyclic
program, command sets, and Labview Drivers are provided.
As a 80W Constant Power laboratory grade power supply it has an automatic range of 0.5-36V and 0 -5A.
The maximum limits of current & voltage are calculated by Imax x Vmax = 80W.
Its operation voltage and current spectrum is larger than 3 conventional power supplies of the same power
rating.
Master & Slave configuration with SSP-9080 and SSP-9081 for parallel connection of multiple units up to 30
Units.

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Display and Indications
Display and Indications
Control buttons and knobs
Display and Indications
Fig. Display panel
4 digitsdisplays
The upper part of display is volt-meter and the lower part of display is amp-meter or watt-meter.
Constant Voltage Mode LED
Indicates the Power Supply is working in Constant Voltage mode.
The output voltage of power supply is kept constant at the set voltage in this mode. The power supply
remains in CV as long as the loading current is lower than the set current limit otherwise power supply will
cross over to CC mode.
Constant Current Mode LED
Indicates the Power Supply is working in Constant Current mode.
When the loading is higher than the set current limit of the set voltage in CV mode, the Constant Current
Mode kicks in. The output current of power supply is kept constant at the set current level provided that the
loading is sufficiently large to draw current equal to or larger than set current, otherwise power supply will
cross over to CV mode.

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Watt-meter LED
Indicates the lower row of the 4 digit LED is read as watt-meter. The value is showing output power in Watt.
Amp-meter LED
Indicates the lower row of the 4 digit LED is Amp-meter. The value is showing output current inAmpere.
Remote control LED
Indicate the Power Supply is under remote control. Whenever you connection power supply using control
software through USB or Ethernet. This LED will be ON.
Slave LED
Indicates the Power Supply is in slave mode and controlled by the master unit. The voltage and current
setting of slave units are controlled by the master unit. The buttons and knobs of slave units are locked. The
master unit controls all units. (Details refer to Master & Slave section)
Shift LED
Indicates the Shift key is pressed and the second function in orange imprints of buttons & knobs will be
activated Quick press on Shift key to activate setting of UVL,UCL,W.
Lock LED
Indicates the panel of power supply is being locked. This LED will being ON when press button. Then
the output is ON.

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Fig. LED in button panel
Output ON/OFF LED
Indicates output ON / OFF status
Preset A LED
Indicates Preset A is selected, the output voltage and current are fixed as in preset A settings.
Preset B LED
Indicate Preset B is selected, the output voltage and current are fixed as in preset B settings.
Preset C LED
Indicate Preset C is selected, the output voltage and current are fixed as in preset C settings.

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Control buttons and knobs
The power supply has 2 knobs and 6 buttons
Voltage adjust knob
Current adjust knob
Output ON / OFF button
Preset program A selection button
Preset program B selection button
Preset program C selection button
LOCK / UNLOCK button
MENU button

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Back Panel
1. USB communicationport
2. Remote sensing terminals
3. DC output terminal which has same power rating as the front output
4. Master/Slave connection
5. AC INPUT SOCKET
6. ETHERNET port (Optional)

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Operation Procedures
Adjusting output voltage and current
Set upper voltage limit and upper current limit
Select and adjust 3 preset value of Voltage and Current
Output ON/OFF and power up ON/OFF setting
Lock and unlock of front panel
Watt-meter andAmp-meter selection
Master/Slave configuration
Remote sensing operation
Factory reset
Adjusting output voltage and current
Voltage adjust knob
Adjust output voltage
-Rotate Voltage Knob clockwise to INCREASE output voltage.
-Rotate Voltage Knob anti-clockwise to REDUCE output voltage.
-Press Voltage knob to switch between COARSE and FINE adjustment. When press the knob the digit
will be high-lighted for tuning.
Current adjust knob
Adjust output current limit
-Rotate Current Knob clockwise to increase output voltage
-Rotate Current Knob anti-clockwise to reduce output voltage
-Press Current knob to switch between COARSE and FINE adjustment. When press the knob the digit
will be high-lighted for tuning.

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Set upper voltage limit and upper current limit
Upper voltage Limit (UVL)
The Upper Voltage Limit is feature to let user to set maximum value for voltage adjustment. This feature can
help to prevent accidentally adjust to very high output voltage to cause damage on object under testing.
During increasing output voltage and hit the UVL, the display will show you alert as follow;
Adjusting upper voltage Limit
·The second function of Voltage Knob is for UVL adjustment.
·Press and LED will ON.
·Then press Voltage Knob. The display will show as follow,
·Rotate Voltage Knob to adjust the UVL value.
·Press to confirm setting. If the new UVL value is lower than set output voltage, it will show
UVL Error alert.
Just reduce the set output voltage to lower than the UVL value. Then the UVL Error will be OFF.
Upper current limit (UCL)
The Upper Current Limit is feature to let user to set maximum value for current adjustment. This feature can
help to prevent accidentally to set load current too high to damage on object under test.
During increasing output current and hit the UCL, the display will show you alert as follow;

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Adjusting upper current limit
·The second function of Current Knob is for UCL adjustment.
·Press and LED ON
·Then press Current Knob. The display will show as follow;,
·Rotate Current Knob to adjust the value.
·Press to confirm setting. If the new UCL value is lower than set output current, it will show
UCL Error alert.
Just reduce the set output current to lower than the UCL value. Then the UCL Error will OFF.

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Select and adjust 3 preset value of Voltage and Current
This power supply has 3 preset of Voltage and Current value for quick recall to use.
To selection preset program, just press / /
Adjust value of preset
After the preset is selected, use Voltage and Current knob to adjust value for that preset program.
The new setting will be saved automatically.
*The value can be reset to factory default in menu. (See Factory reset section)
Output ON/OFF and power up ON/OFF setting
The power supply has feature to switch output ON/OFF by pressing button.
The LED will be ON when the output is ON. The display will show the actual output voltage &
current or watt.
Set power up with Output ON or OFF status
The power up output ON/ OFF status can be configured according to usage requirement.
The default setting is output OFF when system power up.
It has option to set as SAMEAS LASTSTATUS.
That means the output ON/ OFF status will same as status before power off.
Steps to change setting,
·Press and hold to enter menu mode
·Rotate Volt. Knob to select PU menu. The display shows
·Press Volt. Knob to enter PU setting. The display show
·Rotate Curr. Knob to change setting to . The output is set to as same as last
status.
·Press Volt. Knob to confirm.
·Press to exit menu.

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Lock and unlock of front panel
In case the front panel is locked, only the has function.
Other buttons and knobs are being locked. The front panel will be locked in two conditions.
·Manually Press to LOCK the front panel and LED is on.
·The unit is under remote control by PC through USB or Ethernet.
Watt-meter and Amp-meter selection
The lower row 4 digit display can use as Watt-meter orAmp-meter.
Select Watt-meter
Press and LED is ON.
Press . If LED is ON, the display is showing output in watt.
Select Amp-meter
Press and LED is ON.
Press . If LED is ON, the display is showing output in ampere.

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Ramp Up / Ramp Down generator
The SSP-9081 has function to generate waveform with ramp up and ramp down. It allow to set 10 steps for
wave.
Steps to setup ramp up/ramp down wave;
Step 1 -Press and hold to enter menu
Step 2 -Rotate Volt. Knob to select dvdt menu. The display shows
Step 3 -Press Volt. Knob to enter dvdt setting. The display show
Step 4 -Rotate VOLT. Knob to set items.
Step 5 -Rotate Curr. Knob to change value of set items
The below table shows the available set items and value range for dvdt menu.
Set Item Description Value Range
Number of steps to be use for wave form generation.
Must start from step 1. 2-10
Number of cycle to run for wave form 0 to 999
0 means run forever
….. Step 1 to Step 10 Voltage setting (in V) 0 to 36V
….. Step 1 to Step 10 run time length (in S) 0 to 1200s
Step 6 -Press Volt. Knob to confirm and exit.
Step 7 -Press to exit menu.
Steps to Run ramp up/ramp down wave;
Step 1 -Press to switch on output
Step 2 -Press and see LED ON.
Step 3 -Press to run dvdt program.

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Examples,
Example 1 – Triangular Waveform.
Setting value
Set Item Value Explanation
2Set 2 steps to run. Step 1 and Step 2
3Run 3 cycle only
2.5 Set Step 1 voltage to 2.5V
3Set Step 1 run time to 3s
(Ramp UP from step 1 voltage to step 2 voltage in 3s)
12 Set Step 2 voltage to 12V
3Set Step 2 run time to 3s
(Ramp DOWN from step 2 voltage to step 1 voltage in 3s)

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Example 2 – Saw-tooth waveform
Setting value
Set Item Value Explanation
2Set 2 steps to run. Step 1 and Step 2
6Run 6 cycle only
2.5 Set Step 1 voltage to 2.5V
3Set Step 1 run time to 3s
(Ramp UP from step 1 voltage to step 2 voltage in 3s)
12 Set Step 2 voltage to 12V
0Set Step 2 run time to 0s
(Edge DOWN from step 2 voltage to step 1 voltage in 0s)

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Example 3 – Rectangular Waveform
Setting value
Set Item Value Explanation
4Set 4 steps to run. From step 1 to step 4
4Run 4 cycle only
2.5 Set Step 1 voltage to 2.5V
0Set Step 1 run time to 0s
(Edge UP from step 1 voltage to step 2 voltage in 0s)
12 Set Step 2 voltage to 12V
3Set Step 2 run time to 3s
(Keep at 12V by 3s, since step 2 voltage = step 3 voltage)
12 Set Step 3 voltage to 12V
0Set Step 3 run time to 0s
(Edge DOWN from step 3 voltage to step 4 voltage in 0s)
2.5 Set Step 4 voltage to 2.5V
5Set Step 4 run time to 5s
(Keep at 2.5V by 5s, since step 4 voltage = step 1 voltage)

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Example 4 – irregular waveform
Setting value
Set Item Value Explanation
7Set 7 steps to run. From Step 1 to Step 7
0Run forever
2.5 Set Step 1 voltage to 2.5V
3Set Step 1 run time to 3s
(Ramp UP from step 1 voltage to step 2 voltage in 3s)
12 Set Step 2 voltage to 12V
5Set Step 2 run time to 5s
(Keep at 12V by 5s, since step 2 voltage = step 3 voltage)
12 Set Step 3 voltage to 12V
4Set Step 3 run time to 4s
(Ramp UP from step 3 voltage to step 4 voltage in 4s)
17 Set Step 4 voltage to 17V
0Set Step 4 run time to 0s
(Edge DOWN from step 4 voltage to step 5 voltage in 0s)
7.8 Set Step 5 voltage to 7.8V
3Set Step 5 run time to 3s
(Keep at 7.8V by 3s step 5 voltage = step 6 voltage)
7.8 Set Step 6 voltage to 7.8V
5Set Step 6 run time to 5s
(Ramp DOWN from step 6 voltage to step 7 voltage in 5s)
2.5 Set Step 7 voltage to 2.5V
5Set Step 7 run time to 5s
(Keep at 2.5V by 5s, since step 7 voltage = step 1 voltage)

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Master/Slave configuration
The SSP-9080 and SSP-9081 can be configured for Master/ Slave connection. When systems are
connected in Master/ Slave, the Slavesʼ output will follow the setting of Master.
The set voltage will same for Master and all Slave system. The load current will share over all units. That
means 10Amp share to 5 units will make every unit carry 2Amp.
Every units in same Master/Slave connection should assign an unique address ID. The Master unit should
be address ID 0 (factory default). The Slave address can be from 1 to 30.
Wiring of master and slave units
·Make sure that the output cables from each power supply must be of the same length and thickness.
You can use power distribution block from car audio shop to tidy up the wiring.
·Always double check if the terminator plug is installed at the last slave unit.
·Look for the SLAVE GREEN LED which lights up to indicate that Master & Slave connection is correct.
·The full Master & Slave operation begins when output cables are connected to the load and the Master
output is switched to ON.
·The current reading on the Master Unit Xthe total number of units connected = Total Current to the
Load.
Steps for Changing the address ID,
·Press and hold button to enter setting menu.
·Rotate VOLT. knob to select address menu. The display shows
·Press VOLT. knob to enter address menu.
·Rotate CURR knob to change address ID.
·Press VOLT. knob to confirm.
·Press to exit menu.