Marway mPower 300 Series User manual

mPower™DC Power Supplies
300 Series
Operating Guide and Reference
Mar 2020 : P/N 501046-300-G

© 2020, Marway Power Systems, Inc. All rights reserved.
mPower™, mPower DC™, and mPower 300™ are trademarks of Marway Power Systems, Inc.
All other trademarks are the property of their respective owners.
Global Support Contacts
Web: www.marway.com
Email: [e-mail]
[e-mail]
Phone: [phone] (7am–5pm PST)
ere may be updates to this documentation and the software it describes at:
http://www.marway.com/mpower-dc-power-supplies

Page 3
mPower 300 Series (Rev G)
1General
1.1 Documentation Symbols........................................................ 5
1.2 Product Key............................................................................. 5
1.3 Intended Product Usage ........................................................ 5
1.4 Safety Notices......................................................................... 6
2Physical Overview
2.1 300 Series 1U Views .............................................................. 7
3Control Features Overview
3.1 General Description................................................................ 9
3.2 Control Elements ..................................................................10
3.2.1 The control panel (HMI) ................................................10
3.2.2 Resolution of the displayed values ..............................13
3.2.3 Share bus connector.....................................................13
3.2.4 Sense connector ...........................................................13
3.2.5 Ethernet port ................................................................. 14
3.2.6 USB port ........................................................................ 14
3.2.7 Analog interface ............................................................14
4Installation
4.1 Transport and Storage..........................................................15
4.1.1 Transport........................................................................15
4.1.2 Packaging ......................................................................15
4.1.3 Storage...........................................................................15
4.2 Unpacking and Visual Check ...............................................15
4.3 Installation Preparation ....................................................... 16
4.3.1 Safety considerations before installation .................... 16
4.3.2 Mounting the unit..........................................................16
4.4 300 Series 1U Power Connections ..................................... 17
4.4.1 AC input connections .................................................... 17
4.4.2 DC output connections ................................................. 17
4.4.3 Grounding of the DC output .........................................18
4.5 Remote Sensing Connection ...............................................19
4.6 Share Bus Connection .........................................................20
4.7 Analog Interface Connection ...............................................20
4.8 USB Port Connection............................................................20
4.8.1 Driver installation (Windows)........................................20
4.8.2 Driver installation (Linux, MacOS)................................20
4.8.3 Alternative drivers .........................................................21
4.9 Initial Startup ........................................................................ 21
4.9.1 Initial network setup .....................................................21
5Operation and Application
5.1 Important Notes....................................................................22
5.1.1 Personal safety ..............................................................22
5.1.2 General ..........................................................................22
5.2 Operating Modes ..................................................................22
5.2.1 Voltage regulation .........................................................22
5.2.2 Current regulation .........................................................23
5.2.3 Power regulation ...........................................................23
5.3 Alarm Conditions .................................................................. 24
5.3.1 Available alarm signals ................................................. 24
5.3.2 Power fail ....................................................................... 24
5.3.3 Overtemperature...........................................................25
5.3.4 Overvoltage....................................................................25
5.3.5 Overcurrent....................................................................25
5.3.6 Overpower......................................................................25
5.4 Manual Operation.................................................................26
5.4.1 Switching the unit on ....................................................26
5.4.2 Switching the unit off....................................................26
5.4.3 Conguration in the setup menu .................................26
5.4.4 Adjustment limits .......................................................... 31
5.4.5 Display modes for actual and set values.....................32
5.4.6 Manual adjustment of set values ................................33
5.4.7 The quick menu.............................................................33
5.4.8 Switching the DC output on or off................................34
5.5 Remote Control.....................................................................35
5.5.1 General ..........................................................................35
5.5.2 Control locations ...........................................................35
5.5.3 Remote control via a digital interface..........................35
5.5.4 Remote control via the analog interface .....................36
5.6 Alarms and Monitoring.........................................................42
5.6.1 Denition of terms.........................................................42
5.6.2 Hardware alarm handling.............................................42
5.7 Control Panel Lock ...............................................................44
5.8 Loading and Saving a User Prole.......................................45
5.9 Parallel Operation in Share Bus Mode................................46
5.9.1 Series connection..........................................................48

Page 4
mPower 300 Series (Rev G)
6Service & Maintenance
6.1 Maintenance / Cleaning ......................................................49
6.2 Troubleshooting / Diagnosis / Repair.................................49
6.2.1 Firmware updates .........................................................49
6.3 Calibration (readjustment)...................................................50
6.3.1 Preface...........................................................................50
6.3.2 Preparation....................................................................50
6.3.3 Calibration procedure ...................................................50
7Contact and Support
7.1 General ..................................................................................53
7.2 Contact Options ....................................................................53
8 Model Specications Aappendix
8.1 Approved Operating Conditions...........................................54
8.2 Model Data-Table Footnotes................................................54
8.3 MPW 300-01 : 1U, 1,500 Watt, 100–240 Vac...................55
8.4 MPW 300-11 : 1U, 3,000 Watt, 200–240 Vac .................. 57

Page 5
mPower 300 Series (Rev G)
1 General
1.1 Documentation Symbols
Warning and safety notices as well as general notices in this document are shown in a box with a symbol as follows:
Symbol for a life threatening danger
Symbol for general safety notices (instructions and damage protection bans) or important
information for operation
Symbol for general notices
1.2 Product Key
Decoding of the product description on the label, using an example:
Configurations:
-000 = standard unit
MPW 300 - 0 1 - 0080 - 050 - 000
mPower power supplies
DC auto-ranging series
Max. Output DC Volts
Max. Output DC Amps
Input Power:
0 = 1-phase, 100-240 Vac
1 = 1-phase, 200-240 Vac
Enclosure Type:
1 = Rackmount 1U
1.3 Intended Product Usage
The equipment is intended to be used as a general purpose power supply only as a variable voltage and current source.

Page 6
mPower 300 Series (Rev G)
1.4 Safety Notices
Mortal danger - Hazardous voltage
• This is electrical equipment with some parts operating with dangerous voltage. All exposed compo-
nents which can have live voltage must be covered.
• All work on connections must be carried out under zero voltage (output disconnect), and may only
be performed by qualied and informed persons. Improper actions can cause fatal injury as well as
serious material damage.
• Never touch cables or connectors directly after unplugging from mains supply as the danger of
electric shock remains. Verify there is zero voltage with a handheld meter.
• Never touch the contacts on DC output terminal directly after switching off the DC output, because
there still can dangerous voltage present, sinking more or less slowly depending on the load. There
also can be dangerous potential between negative DC output to GND or positive DC output to GND
due to charged capacitors. Verify there is zero voltage with a handheld meter.
• Always follow 5 safety rules when working with electric devices:
• Disconnect completely.
• Secure against reconnection.
• Verify that the system has zero voltage.
• Carry out earthing and short-circuiting.
• Provide protection from adjacent live parts.
• The equipment must only be used as intended.
• The equipment is only approved for use within the connection limits stated on the product label.
• Do not insert any object, particularly metallic, through the ventilator slots
• Avoid any use of liquids near the equipment. Protect the unit from wet, damp and condensation.
• Do not connect loads, particularly low resistance, to power supplies under power; sparking may
occur which can cause burns as well as damage to the equipment and to the user.
• ESD regulations must be applied when plugging interface cards or modules into the relative slot
• Interface cards or modules may only be attached or removed after the unit is switched off. It’s not
necessary to open the unit.
• Do not connect external power sources with reversed polarity to DC input or outputs. The equip-
ment will be damaged.
• Avoid where possible connecting external power sources to the DC output, and never those that can
generate a higher voltage than the nominal voltage of the unit.
• Never insert a CAT5 cable which is connected to Ethernet into the master-slave socket on the back
of the unit.
• Always congure the various protecting features against overvoltage etc. for sensitive loads to what
the target application requires.

Page 7
mPower 300 Series (Rev G)
A - Power switch D - Share bus and Sense bus connectors
B - Control panel E - DC output
C - Control interfaces (LAN, USB, Analog) F - AC input connector
The brass screw next to the AC connector is a central grounding point for internal use. Do not un-
screw to connect external GND potential here. The device is grounded via the AC cable.
2 Physical Overview
2.1 300 Series 1U Views
Share Sense
NC NC
+ - - +
Analog InterfaceUSBLAN
Output
Power Input
Cursor Position
Menu
Cursor Position
On
ESC
Enter
35.00A 80.00V
80.00V 120.00A
Remote:USB
CV
C
D
F
A
B
E

Page 8
mPower 300 Series (Rev G)
1.6” 19.7” ≈1.3”
1U sides shown without DC terminal cover. Note that DC outlet dimensions do not include cable bend radius.
1U top shown without DC terminal cover.

Page 9
mPower 300 Series (Rev G)
3 Control Features Overview
3.1 General Description
The mPower DC power supplies are especially suited to test and industrial applications due to their accuracy,
programmability, wide selection of power ranges, and each unit’s advance auto-ranging power delivery.
For remote control using a PC or PLC, the system include as standard both a USB port and an Ethernet port, as well as a
galvanically isolated analog interface. All interfaces are galvanically isolated up to 1500 Vdc.
In addition, these systems include the ability to be used in parallel. Each unit is congured for set values, alarms, etc., and
the built-in Share bus manages the current load sharing. Operating in this way allows up to 10 units to be combined into a
single system with a total power of up to 48 kW.
The block diagram illustrates the main functions inside the power supply, and their relationships.
Share
and Sense
Main
Controller
(DR)
Power
Management
HMI Display
and Controls
(BE)
Communications
(KE)
ETH USBDC AC Analog

Page 10
mPower 300 Series (Rev G)
3.2 Control Elements
3.2.1 The control panel (HMI)
The HMI (Human Machine Interface) consists of a display, two rotary knobs with pushbutton function and six pushbuttons.
Cursor Position
Menu
Cursor Position
On
ESC
Enter
35.00A 80.00V
80.00V 120.00A Remote:USB
CV
2 3 3 4
5
1
Overview of the elements of the control panel
(1) Display
Used for indication of set values, menus, conditions, actual values and status.
(2)
Left hand rotary knob, with pushbutton function
Turn: adjusts various set values which are related to the DC output voltage.
Push: selects the decimal position of a value to be changed (cursor)
(3)
Buttons
Activates the setup menu for various unit settings (see 5.4.3. Conguration in the setup menu)
Navigates through menus, submenus and parameters (direction: up / left) or changes view mode
Navigates through menus, submenus and parameters (direction: down / right) or changes view mode
Submits altered parameters or set values in submenus, as well enters submenus. Can also be used
to acknowledge alarms.
Cancels changes of parameters in the setup menu or leaves submenus
(4)
Right hand rotary knob, with pushbutton function
Turn: adjusts various set values which are related to the DC output current, the DC output power. Also adjusts
parameters in the setup menu.
Push: selects the decimal position of a value to be changed (cursor)
(5)
On/Off button for DC output
Used to toggle the DC output between on and off, also used to acknowledge alarms. The LED indicates the state
of the DC output, no matter if the unit is manually controlled or remotely (LED on = output on).