MX Series
AC and DC Power Source
User Manual
Series I / Series II
7003-960 Rev AY www.programmablepower.com
User Manual – Rev AY AMETEK Programmable Power
User's Manual
California Instruments - AC Power Source
By AMETEK Programmable Power.
Models:
•
MX30-1
•
MX30-3
•
MX30-3Pi
•
MX45-1
•
MX45-3
•
MX45-3Pi
•
MX60-3
•
MX60-3Pi (-MB)
•
MX90-3
•
MX90-3Pi (-MB)
•
MX135-3
•
MX135-3Pi (-MB)
•
MX180-3
•
MX180-3Pi (-MB)
•
MX225-3
•
MX225-3Pi (-MB)
•
MX270-3
•
MX270-3Pi (-MB)
Note: For MX15-1, MX15-1Pi, see user manual P/N 7005-960.
MX Series 2
User Manual – Rev AY AMETEK Programmable Power
About AMETEK
AMETEK Programmable Power, Inc., a Division of AMETEK, Inc., is a global leader in the design and
manufacture of precision, programmable power supplies for R&D, test and measurement, process control,
power bus simulation and power conditioning applications across diverse industrial segments. From bench
top supplies to rack-mounted industrial power subsystems, AMETEK Programmable Power is the proud
manufacturer of Elgar, Sorensen, California Instruments and Power Ten brand power supplies.
AMETEK, Inc. is a leading global manufacturer of electronic instruments and electromechanical devices with
annualized sales of $2.5 billion. The Company has over 11,000 colleagues working at more than 80
manufacturing facilities and more than 80 sales and service centers in the United States and around the
world.
Trademarks
AMETEK is a registered trademark of AMETEK, Inc. California Instruments is a trademark owned by AMETEK,
Inc. Other trademarks, registered trademarks, and product names are the property of their respective owners
and are used herein for identification purposes only.
Notice of Copyright
MX Series User Manual
© 2015 AMETEK Programmable Power, Inc. All rights reserved.
Exclusion for Documentation
UNLESS SPECIFICALLY AGREED TO IN WRITING, AMETEK PROGRAMMABLE POWER, INC. (“AMETEK”):
(a) MAKES NO WARRANTY AS TO THE ACCURACY, SUFFICIENCY OR SUITABILITY OF ANY TECHNICAL OR
OTHER INFORMATION PROVIDED IN ITS MANUALS OR OTHER DOCUMENTATION.
(b) ASSUMES NO RESPONSIBILITY OR LIABILITY FOR LOSSES, DAMAGES, COSTS OR EXPENSES, WHETHER
SPECIAL, DIRECT, INDIRECT, CONSEQUENTIAL OR INCIDENTAL, WHICH MIGHT ARISE OUT OF THE
USE OF SUCH INFORMATION. THE USE OF ANY SUCH INFORMATION WILL BE ENTIRELY AT THE USER’S
RISK, AND
(c) REMINDS YOU THAT IF THIS MANUAL IS IN ANY LANGUAGE OTHER THAN ENGLISH, ALTHOUGH STEPS
HAVE BEEN TAKEN TO MAINTAIN THE ACCURACY OF THE TRANSLATION, THE ACCURACY CANNOT BE
GUARANTEED. APPROVED AMETEK CONTENT IS CONTAINED WITH THE ENGLISH LANGUAGE VERSION,
WHICH IS POSTED AT WWW.PROGRAMMABLEPOWER.COM.
Date and Revision
March 2015 Revision AY
Part Number
7003-960
Contact Information
Telephone: 800 733 5427 (toll free in North America)
858 450 0085 (direct)
Fax: 858 458 0267
Email: sales.ppd@ametek.com
service.ppd@ametek.com
Web: www.programmablepower.com
MX Series 3
User Manual – Rev AY AMETEK Programmable Power
Important Safety Instructions
Before applying power to the system, verify that your product is configured properly for your particular
application.
WARNING
WARNING
Only qualified personnel who deal with attendant hazards in power supplies, are allowed to perform installation
and servicing.
Ensure that the AC power line ground is connected properly to the Power Rack input connector or chassis.
Similarly, other power ground lines including those to application and maintenance equipment must be grounded
properly for both personnel and equipment safety.
Always ensure that facility AC input power is de-energized prior to connecting or disconnecting any cable.
In normal operation, the operator does not have access to hazardous voltages within the chassis. However,
depending on the user’s application configuration, HIGH VOLTAGES HAZARDOUS TO HUMAN SAFETY may
be normally generated on the output terminals. The customer/user must ensure that the output power lines are
labeled properly as to the safety hazards and that any inadvertent contact with hazardous voltages is eliminated.
Guard against risks of electrical shock during open cover checks by not touching any portion of the electrical
circuits. Even when power is off, capacitors may retain an electrical charge. Use safety glasses during open
cover checks to avoid personal injury by any sudden component failure.
Neither AMETEK Programmable Power Inc., San Diego, California, USA, nor any of the subsidiary sales
organizations can accept any responsibility for personnel, material or inconsequential injury, loss or damage that
results from improper use of the equipment and accessories.
Hazardous voltages may be present when covers are removed. Qualified
personnel must use extreme caution when servicing this equipment.
Circuit boards, test points, and output voltages also may be floating above
(below) chassis ground.
The equipment used contains ESD sensitive parts. When installing
equipment, follow ESD Safety Procedures. Electrostatic discharges might
cause damage to the equipment.
SAFETY SYMBOLS
MX Series 4
User Manual – Rev AY AMETEK Programmable Power
Product Family: MX Series AC Power Source
Warranty Period: 1 Year
WARRANTY TERMS
AMETEK Programmable Power, Inc. (“AMETEK”), provides this written warranty covering the Product stated
above, and if the Buyer discovers and notifies AMETEK in writing of any defect in material or workmanship
within the applicable warranty period stated above, then AMETEK may, at its option: repair or replace the
Product; or issue a credit note for the defective Product; or provide the Buyer with replacement parts for the
Product.
The Buyer will, at its expense, return the defective Product or parts thereof to AMETEK in accordance with the
return procedure specified below. AMETEK will, at its expense, deliver the repaired or replaced Product or
parts to the Buyer. Any warranty of AMETEK will not apply if the Buyer is in default under the Purchase Order
Agreement or where the Product or any part thereof:
•
is damaged by misuse, accident, negligence or failure to maintain the same as specified or
required by AMETEK;
•
is damaged by modifications, alterations or attachments thereto which are not authorized by
AMETEK;
•
is installed or operated contrary to the instructions of AMETEK;
•
is opened, modified or disassembled in any way without AMETEK’s consent; or
•
is used in combination with items, articles or materials not authorized by AMETEK.
The Buyer may not assert any claim that the Products are not in conformity with any warranty until the Buyer
has made all payments to AMETEK provided for in the Purchase Order Agreement.
PRODUCT RETURN PROCEDURE
Request a Return Material Authorization (RMA) number from the repair facility (must be done in the
country in which it was purchased):
•
In the USA, contact the AMETEK Repair Department prior to the return of the product to
AMETEK for repair:
Telephone: 800-733-5427, ext. 2295 or ext. 2463 (toll free North America)
858-450-0085, ext. 2295 or ext. 2463 (direct)
•
Outside the United States, contact the nearest Authorized Service Center (ASC). A full listing
can be found either through your local distributor or our website,
www.programmablepower.com, by clicking Support and going to the Service Centers tab.
When requesting an RMA, have the following information ready:
•
Model number
•
Serial number
•
Description of the problem
NOTE: Unauthorized returns will not be accepted and will be returned at the shipper’s expense.
NOTE: A returned product found upon inspection by AMETEK, to be in specification is subject to an
evaluation fee and applicable freight charges.
MX Series 5
User Manual – Rev AY AMETEK Programmable Power
Table of Contents
1. Introduction ................................................................................................................................... 11
1.1 General Description ........................................................................................................................ 11
1.2 Manual organization and format ...................................................................................................... 11
1.3 Different Model Series ..................................................................................................................... 12
2. Specifications ................................................................................................................................ 13
2.1 Electrical ......................................................................................................................................... 13
2.2 Mechanical ...................................................................................................................................... 23
2.3 Environmental ................................................................................................................................. 24
2.4 Regulatory ....................................................................................................................................... 24
2.5 Front Panel Controls ....................................................................................................................... 24
2.6 Special Features and Options ......................................................................................................... 25
2.7 Supplemental Specifications ........................................................................................................... 34
3. Unpacking and Installation ............................................................................................................ 40
3.1 Unpacking ....................................................................................................................................... 40
3.2 Power Requirements ....................................................................................................................... 40
3.3 Mechanical Installation .................................................................................................................... 41
3.4 AC Input Connections and Wiring ................................................................................................... 41
3.5 AC On/Off Circuit Breaker on MX Series front panel. ..................................................................... 44
3.6 Output Connections ........................................................................................................................ 46
3.7 Connectors - Rear Panel ................................................................................................................. 60
3.8 Multiple Cabinet System Configurations (incl. –MB) ....................................................................... 68
3.9 Multiple Cabinet Power Up/Down Procedures ................................................................................ 70
3.10 Clock and Lock Configurations ....................................................................................................... 71
3.11 Basic Initial Functional Test ............................................................................................................ 74
3.12 Remote Inhibit / Remote Shutdown ................................................................................................ 76
3.13 Junction Box Accessory .................................................................................................................. 77
3.14 Output Filter Box Accessory ............................................................................................................ 78
3.15 Fuse Box Accessory ....................................................................................................................... 79
4. Front Panel Operation .................................................................................................................. 80
4.1 Tour of the Front Panel ................................................................................................................... 80
4.2 Menu Structure ................................................................................................................................ 87
4.3 Output Programming ..................................................................................................................... 125
4.4 Waveform Management [3Pi Controller only] ............................................................................... 127
4.5 Standard Measurements ............................................................................................................... 132
4.6 Advanced Measurements [3Pi Controller only] ............................................................................. 134
4.7 Transient Programming ................................................................................................................. 143
5. Principle of Operation ................................................................................................................. 150
5.1 General ......................................................................................................................................... 150
5.2 Overall Description ........................................................................................................................ 150
5.3 Controller Assembly ...................................................................................................................... 152
5.4 System Interface Board ................................................................................................................. 156
5.5 Current / Voltage Sensor Board .................................................................................................... 156
5.6 Low Voltage Power Supply ........................................................................................................... 156
5.7 Power Module ............................................................................................................................... 157
6. Calibration ................................................................................................................................... 162
6.1 Recommended Calibration Equipment ......................................................................................... 162
6.2 Front Panel Calibration Screens ................................................................................................... 163
6.3 Routine Measurement Calibration ................................................................................................. 166
6.4 Routine Output Calibration ............................................................................................................ 170
6.5 Non-Routine Calibration ................................................................................................................ 178
7. Service ........................................................................................................................................ 183
MX Series 6
User Manual – Rev AY AMETEK Programmable Power
7.1 Cleaning ........................................................................................................................................ 183
7.2 General ......................................................................................................................................... 183
7.3 Basic operation ............................................................................................................................. 183
7.4 Advanced Troubleshooting. .......................................................................................................... 185
7.5 Factory Assistance ........................................................................................................................ 187
7.6 Fuses ............................................................................................................................................ 188
7.7 Firmware Updates ......................................................................................................................... 189
8. Top Assembly Replaceable Parts ............................................................................................... 192
9. Options ....................................................................................................................................... 195
9.1 Introduction ................................................................................................................................... 195
9.2 Option -HV: Additional AC Voltage Range .................................................................................... 196
9.3 Option –160: RTCA/DO-160 Tests ................................................................................................ 197
9.4 Option –411: IEC 61000-4-11 Voltage Dips and Interruptions ...................................................... 211
9.5 Option –413: IEC 61000-4-13 Interharmonics Test ...................................................................... 219
9.6 Option –704: MilStd704 Tests ....................................................................................................... 230
9.7 Option –ABD: Airbus ABD0100.1.8 Test ....................................................................................... 242
9.8 Option –AMD: Airbus AMD24C Test ............................................................................................. 242
9.9 Option –787: Boeing B787-0147 Test .......................................................................................... 242
9.10 Option –WHM: Watt Hour Measurement ...................................................................................... 243
9.11 Option –SNK: Current Sink ........................................................................................................... 245
9.12
Option
-
EXTD: External drive
10. Error Messages .......................................................................................................................... 250
Index .................................................................................................................................................. 255
…………………………………………………………………….
248
MX Series 7
User Manual – Rev AY AMETEK Programmable Power
List of Figures
Figure 2-1: MX30-3 Voltage / Current Rating Chart for 150/300 V AC Ranges. ..................................................................... 17
Figure 2-2: MX45-3 Voltage / Current Rating Chart for 150/300 V AC Ranges – Max Rating. ................................................. 17
Figure 2-3: Voltage / Current Rating Chart for 150/300 V AC Ranges – Derated. ................................................................... 18
Figure 2-4: MX30-3 Voltage / Current Rating Chart for 200/400 V DC Ranges ....................................................................... 19
Figure 2-5: MX45-3 Voltage / Current Rating Chart for 200/400 V DC Ranges – Max. Rating ................................................ 19
Figure 2-6: Voltage / Current Rating Chart for 200/400 V DC Ranges – Derated .................................................................... 20
Figure 2-7: MX30-3 Voltage / Current Rating Chart, -HV Option ............................................................................................ 29
Figure 2-8: MX45-3 Voltage / Current Rating Chart, -HV Option – Max. Rating. ..................................................................... 29
Figure 2-9: Voltage / Current Rating Chart, -HV Option – Derated. ......................................................................................... 29
Figure 2-10: -HF Option Voltage Frequency Rating 300V range ............................................................................................. 31
Figure 2-11: -HF Option Voltage Frequency Rating 150V range ............................................................................................. 31
Figure 2-12: MX output filter option schematic ........................................................................................................................ 36
Figure 2-13: MX45 Output Noise 10 KHz – 1 MHz .................................................................................................................. 37
Figure 2-14: MX45 Output Noise 10 KHz - 1 MHz with optional Filter ..................................................................................... 38
Figure 3-1: The MX45 Power Source ...................................................................................................................................... 40
Figure 3-2: Location of AC Input Fuse Block and Chassis Ground Connection - Front View, Access Panel Removed .......... 42
Figure 3-3: MX Series AC Input Connection Diagram (Rear view) .......................................................................................... 43
Figure 3-4: Rear Panel ........................................................................................................................................................... 45
Figure 3-5: External sense cable shield connection to chassis ground ................................................................................... 46
Figure 3-6: Location of Output Terminals (Front view) ............................................................................................................ 49
Figure 3-7: MX30-1 / MX45-1 Output Wiring (Rear view) ........................................................................................................ 50
Figure 3-8: MX30-3 / MX45-3 Output Wiring (Rear view) ........................................................................................................ 51
Figure 3-9:MX60, MX60-MB, MX90 or MX90-MB Output Wiring (Rear view) .......................................................................... 52
Figure 3-10: Two MX's in Clock and Lock mode Output Wiring (Rear view)............................................................................ 53
Figure 3-11: MX135 or MX135-MB Output Wiring (Rear view) ................................................................................................ 55
Figure 3-12: Three MX's in Clock and Lock mode - Output Wiring (Rear view) ....................................................................... 56
Figure 3-13: MX180, MX225 or MX270 Output Wiring (Rear view) ........................................................................................ 58
Figure 3-14: Ship kit Terminal Block dimensions .................................................................................................................... 59
Figure 3-15: RS232C Cable for PC Connection wiring diagram – MX without USB. ............................................................... 64
Figure 3-16: USB Connector pin orientation. .......................................................................................................................... 65
Figure 3-17: Emergency Switch (ES Option) shut off inter connect on -MB systems. ............................................................. 67
Figure 3-18: Multi-Cabinet DIP Switch Location and Setting ................................................................................................... 69
Figure 3-19: Functional Test Setup. ........................................................................................................................................ 75
Figure 3-20: 7003-416-1 Output Junction Box ........................................................................................................................ 77
Figure 3-21: 7003-424-1 Output noise filter box. ..................................................................................................................... 78
Figure 3-22: 7003-426-1 Output Fuse Box .............................................................................................................................. 79
Figure 4-1: Shuttle Knob ......................................................................................................................................................... 82
Figure 4-2: FUNCTION Keypad ............................................................................................................................................. 83
Figure 4-3: Entering Values from the Decimal Keypad ........................................................................................................... 85
Figure 4-4: Cursor UP Key Movement .................................................................................................................................... 85
Figure 4-5: Cursor DOWN key Movement .............................................................................................................................. 86
Figure 4-6: Main Menu 1 Screen............................................................................................................................................. 86
Figure 4-7: Menu 1 through 3 ................................................................................................................................................. 87
Figure 4-8: PROGRAM Menu ................................................................................................................................................. 91
Figure 4-9: MEASUREMENTS Screen, Single Phase and Three Phase Modes ..................................................................... 93
Figure 4-10: HARMONICS/TRACE ANALYSIS Screen .......................................................................................................... 95
Figure 4-11: TRANSIENTS Menu ........................................................................................................................................... 98
Figure 4-12: VOLTAGE SURGE/SAG SETUP Screen ........................................................................................................... 99
Figure 4-13: VOLTAGE SWEEP/STEP SETUP Screen ....................................................................................................... 101
Figure 4-14: FREQUENCY SWEEP/STEP SETUP Screen .................................................................................................. 103
Figure 4-15 VOLTAGE/FREQUENCY SWEEP/STEP SETUP Screen ................................................................................ 104
Figure 4-16:START/VIEW TRANSIENT SEQUENCE Screen .............................................................................................. 105
Figure 4-17: WAVEFORMS Menu ........................................................................................................................................ 106
Figure 4-18: APPLICATIONS Menus .................................................................................................................................... 109
Figure 4-19: SETUP REGISTERS Menu .............................................................................................................................. 110
Figure 4-20: UTILITY Menus ................................................................................................................................................ 111
Figure 4-21: GPIB/RS232 SETUP Menu .............................................................................................................................. 114
Figure 4-22: VOLTAGE/CURRENT CONTROL SETUP Menu ............................................................................................. 115
Figure 4-23: INITIAL SETUP Menus ..................................................................................................................................... 116
Figure 4-24: LIMIT SETUP Menu ......................................................................................................................................... 118
Figure 4-25: CONFIGURATION SETUP Menus ................................................................................................................... 119
Figure 4-26: OUTPUT IMPEDANCE Menu ........................................................................................................................... 122
Figure 4-27: MEASUREMENT CAL FACTORS Menu (Series I only) ................................................................................... 123
Figure 4-28: MEASUREMENT CAL FACTORS Menu (Series II only) .................................................................................. 123
Figure 4-29: OUTPUT CAL FACTORS Menu (Series I only) ................................................................................................ 124
Figure 4-30: OUTPUT CAL FACTORS Menu (Series II only) ............................................................................................... 124
Figure 4-31: Selecting a Waveform ...................................................................................................................................... 127
MX Series 8
User Manual – Rev AY AMETEK Programmable Power
Figure 4-32: Selecting Waveforms for Single Phase or All Phases ....................................................................................... 127
Figure 4-33: Custom Waveform Creation with GUI Program ................................................................................................ 128
Figure 4-34: Waveform Crest Factor Affects Max. rms Voltage ............................................................................................ 130
Figure 4-35: Waveform Frequency Domain View Mode ........................................................................................................ 131
Figure 4-36: Scrolling Through Tabular FFT Data ................................................................................................................. 135
Figure 4-37: Scrolling through bar chart FFT Data ................................................................................................................ 135
Figure 4-38: Scrolling Through Acquired Waveform Data ..................................................................................................... 137
Figure 4-39: SET VOLT Trigger Source Acquisition.............................................................................................................. 139
Figure 4-40: Positive Trigger Delay (Post Trigger Data) ........................................................................................................ 141
Figure 4-41: Negative Trigger Delay (Pre-Trigger Data) ........................................................................................................ 142
Figure 4-42: Pulse Transients ............................................................................................................................................... 144
Figure 4-43: List Transients .................................................................................................................................................. 145
Figure 4-44: Switching Waveforms in a Transient List .......................................................................................................... 148
Figure 4-45: START/VIEW TRANSIENT SEQUENCE Menu ................................................................................................ 149
Figure 5-1: MX Series Functional Block Diagram.................................................................................................................. 150
Figure 5-2: MX Series Detailed Block Diagram ..................................................................................................................... 154
Figure 5-3: Power Module Detailed Block Diagram ............................................................................................................... 155
Figure 5-4: Power Module Layout ......................................................................................................................................... 157
Figure 5-5: Amplifier Board Layout ....................................................................................................................................... 159
Figure 6-1: Calibration Setup MX45-1 (Rear view) ................................................................................................................ 164
Figure 6-2: Calibration Setup MX30-3Pi, MX45-3Pi or MX30-3, MX45-3 (Rear view) ............................................................ 165
Figure 6-3: Current Measurement Calibration Setup (Rear view) .......................................................................................... 166
Figure 6-4: DC offset AC filter ............................................................................................................................................... 170
Figure 6-5: -413 Option Aux Generator Adjustments ............................................................................................................ 176
Figure 9-1: Application Menu ................................................................................................................................................ 198
Figure 9-2: DO160 Main Menu.............................................................................................................................................. 199
Figure 9-3: Normal State ...................................................................................................................................................... 199
Figure 9-4: Voltage Modulation ............................................................................................................................................. 201
Figure 9-5: Frequency Modulation ........................................................................................................................................ 202
Figure 9-6: Power Interrupt ................................................................................................................................................... 203
Figure 9-7: Power Interrupt for Group 2 and 3 ...................................................................................................................... 204
Figure 9-8: Emergency Screen ............................................................................................................................................. 205
Figure 9-9: Abnormal Screen ................................................................................................................................................ 206
Figure 9-10: DO-160 DC Main Menu .................................................................................................................................... 208
Figure 9-11: Normal State .................................................................................................................................................... 208
Figure 9-12: Abnormal State ................................................................................................................................................. 209
Figure 9-13: Application Menu .............................................................................................................................................. 213
Figure 9-14: IEC1000-4-11 Menu ......................................................................................................................................... 213
Figure 9-15: IEC Dips and Interrupts .................................................................................................................................... 214
Figure 9-16: Voltage Variation Screen .................................................................................................................................. 216
Figure 9-17: EN 61000-4-11 Voltage Variation specification- Edition 1.0 .............................................................................. 217
Figure 9-18: EN 61000-4-11 Voltage Variation specification- Edition 2.0 .............................................................................. 217
Figure 9-19: IEC 61000-4-11 GUI screen. ............................................................................................................................ 218
Figure 9-20: Application Setup Menus .................................................................................................................................. 220
Figure 9-21: IEC1000-4-13 Menu ......................................................................................................................................... 220
Figure 9-22: IEC 1000-4-13 FCURVE ................................................................................................................................... 222
Figure 9-23: IEC 1000-4-13 OSWING .................................................................................................................................. 222
Figure 9-24: IEC 1000-4-13 SWEEP .................................................................................................................................... 223
Figure 9-25: IEC 1000-4-13 Harmonics ................................................................................................................................ 223
Figure 9-26: IEC 1000-4-13 INTERHARMONICS ................................................................................................................. 224
Figure 9-27: IEC 61000-4-13 Meister Curve ......................................................................................................................... 224
Figure 9-28: IEC 61000-4-13 Test Flowchart Class 1 and 2.................................................................................................. 226
Figure 9-29:IEC 61000-4-13 Test Flowchart Class 3 ............................................................................................................ 227
Figure 9-30: MENU 2 SCREEN ............................................................................................................................................ 229
Figure 9-31: INTERHARMONICS SCREEN ......................................................................................................................... 229
Figure 9-32: Application Menu .............................................................................................................................................. 232
Figure 9-33: MIL704 Menu .................................................................................................................................................... 233
Figure 9-34: Steady State Menu ........................................................................................................................................... 233
Figure 9-35: Transient Menu ................................................................................................................................................. 235
Figure 9-36: Emergency Menu ............................................................................................................................................. 236
Figure 9-37: Abnormal Screen .............................................................................................................................................. 237
Figure 9-38: MIL704 DC Menu.............................................................................................................................................. 238
Figure 9-39: Steady State DC ............................................................................................................................................... 238
Figure 9-40: Transient Menu ................................................................................................................................................. 239
Figure 9-41: Abnormal Test Screen ...................................................................................................................................... 240
Figure 9-42: Emergency Test ............................................................................................................................................... 241
Figure 9-43: Application Screen ............................................................................................................................................ 243
Figure 9-44: Watt-Hour Meter Screen ................................................................................................................................... 243
Figure 9-45: WH-Meter Screen with Function Active ............................................................................................................ 243
Figure 9-46: REGENERATE CONTROL screen ................................................................................................................... 246
MX Series 9
User Manual – Rev AY AMETEK Programmable Power
List of Tables
Table 3-1: Suggested Input Wiring Sizes for each MX Cabinet * ............................................................................................ 44
Table 3-2: Suggested Output Wiring Sizes * ........................................................................................................................... 47
Table 3-3: Output Terminal connections. ................................................................................................................................ 48
Table 3-4: System Interface Connectors................................................................................................................................. 61
Table 3-5: Analog Interface Connector ................................................................................................................................... 61
Table 3-6: BNC Connectors .................................................................................................................................................... 62
Table 3-7: BNC Connectors .................................................................................................................................................... 62
Table 3-8: External Sense Connector ..................................................................................................................................... 62
Table 3-9: RS232 Connector pin out – MX with RS232 and USB. .......................................................................................... 63
Table 3-10: RS232C Connector pin out – MX with RS232 but no USB ................................................................................... 63
Table 3-11: USB Connector pin out. ....................................................................................................................................... 65
Table 3-12: RJ45 LAN Connector pin out. .............................................................................................................................. 66
Table 3-13: Clock and Lock Configuration settings ................................................................................................................. 71
Table 3-14: Clock and Lock Initialization settings ................................................................................................................... 72
Table 3-15: Remote Inhibit Mode Settings .............................................................................................................................. 76
Table 6-1: Calibration Load Values ....................................................................................................................................... 167
Table 6-2: Measurement Calibration Table ........................................................................................................................... 169
Table 6-3: Output Calibration Table – MX Series I ................................................................................................................ 177
Table 6-4: Output Calibration Table – MX Series II ............................................................................................................... 177
Table 6-5: Current Limit Calibration ...................................................................................................................................... 180
Table 6-6: Programmable Z adjustment pots ........................................................................................................................ 182
Table 6-7: Formulas to calculate R and L ............................................................................................................................. 182
Table 7-1: Basic Symptoms .................................................................................................................................................. 183
Table 7-2: MX Fuse Ratings ................................................................................................................................................. 188
Table 7-3: Flash Down load Messages ................................................................................................................................. 191
Table 8-1: Replaceable Parts ............................................................................................................................................... 193
Table 8-2: Fuses .................................................................................................................................................................. 194
Table 9-1: Normal Voltage and Frequency Minimum ........................................................................................................... 200
Table 9-2: Normal Voltage and Frequency Maximum ........................................................................................................... 200
Table 9-3: Normal Voltage Unbalance .................................................................................................................................. 200
Table 9-4: Normal VoltageSurge Sequence .......................................................................................................................... 204
Table 9-5: Normal Frequency Transient Sequence ............................................................................................................... 205
Table 9-6: Normal Frequency Variation Sequence ............................................................................................................... 205
Table 9-7: Emergency Voltage and Frequency Minimum...................................................................................................... 206
Table 9-8: Emergency Voltage and Frequency Maximum ..................................................................................................... 206
Table 9-9: Emergency Voltage Unbalance............................................................................................................................ 206
Table 9-10: Abnormal Voltage Minimum ............................................................................................................................... 207
Table 9-11: Abnormal Voltage Maximum .............................................................................................................................. 207
Table 9-12: Abnormal Frequency Transient .......................................................................................................................... 207
Table 9-13: Normal Voltage Minimum .................................................................................................................................. 208
Table 9-14: Normal Voltage Maximum .................................................................................................................................. 209
Table 9-15: Voltage Surge .................................................................................................................................................... 209
Table 9-16: Abnormal Voltage Surge .................................................................................................................................... 210
Table 9-17: Phase mapping .................................................................................................................................................. 212
Table 9-18: IEC 61000-3-34 Table C.2 ................................................................................................................................. 212
Table 9-19: Dips and Interruptions Tests Performed During RUN ALL ................................................................................ 214
Table 9-20: Voltage Variations Test Performed During RUN ALL ......................................................................................... 216
Table 10-1: Error Messages ................................................................................................................................................. 254
MX Series 10
User Manual – Rev AY AMETEK Programmable Power
1. Introduction
This instruction manual contains information on the installation, operation, calibration and
maintenance of all power systems that use the MX Series power sources with the programmable
controller.
1.1 General Description
The MX Series AC and DC power source systems are high efficiency, floor standing AC and DC
power sources that provide a precise output with low distortion. Available voltage ranges are 150 Vac,
300 Vac and 400 Vac in AC mode and 200 Vdc and 400 Vdc in DC mode. The MX30-3Pi and MX453Pi can operate in either single or three-phase mode. The MX30 and MX45 is also available in just
single or three-phase mode. All other models always operate in three-phase mode.
Models with a -1 or -3 designation provide full front panel operation but do not include certain features
such as arbitrary waveform generation unless added as an option at the time of order. Models with
the Pi controller offer several additional standard features, including the RS232C, USB, LAN (option)
and IEEE-488 interfaces, arbitrary waveform generation, dual voltage ranges and additional
measurement functions.
The MX Series units are contained in a compact floor standing enclosure on casters. This allows the
units to be moved around more easily.
Read the installation instructions carefully before attempting to install and operate the MX Series
power systems.
1.2 Manual organization and format
All user documentation for California Instruments power sources is provided on CDROM in electronic
format. (Adobe Portable Document Format) The required Adobe PDF viewer is supplied on the same
CDROM. This manual may be printed for personal use if a hardcopy is desired. To request a
hardcopy from AMETEK Programmable Power, contact customer service at
service@programmablepowwer.com. There will be an additional charge for printed manuals.
This manual contains sections on installation, normal use, maintenance and calibration. If the MX
system is equipped with a GPIB, RS232C, USB or LAN interface, refer to the MX Programming
manual for information on using the remote control interfaces and command syntax. The
programming manual is provided on the same CDROM as this user manual.
MX Series 11
User Manual – Rev AY AMETEK Programmable Power
1.3 Different Model Series
There are two versions of the MX Series product, Series I and Series II. This user manual covers both
MX model series with top level assembly part numbers 7003-400 (Series I) and 7003-422 (Series II).
The difference between the Series I and the Series II is the controller used. The Series II uses a
newer controller design but retains backward compatibility with the Series I products. The part number
is shown on the model / serial number tag on the back of the MX series. All Series II will have a
firmware revision of 4.0 or higher. The firmware revision is displayed briefly at power up on the LCD
display and can also be queried over the bus by using the *IDN? command.
Differences between the two model series are restricted to:
• Reduced number of measurement calibration coefficients on Series II.
• Increased measurement sampling rate on Series II.
• Maximum DC offset range in AC+DC mode is 250Vdc on Series I, 220Vdc on Series II
Where relevant, differences are highlighted throughout the user manual.
MX Series 12
User Manual – Rev AY AMETEK Programmable Power
2. Specifications
Specifications shown are valid over an ambient temperature range of 25 ± 5° C and apply after a 30
minute warm-up time. Unless otherwise noted, all specifications are per phase for sine wave output
into a resistive load. For three phase configurations or mode of operation, all specifications are for
Line to Neutral (L-N) and phase angle specifications are valid under balanced load conditions only.
Note: Specifications for input and output current and power on MX180, MX225 and MX270
configurations are 4, 5 and 6 times those of MX45-3 and are not separately listed.
2.1 Electrical
2.1.1 Input
Parameter MX30 MX45 MX60 MX90 MX135
Line Voltage:
(3 phase, 3
wire + ground
(PE))
Line VA: 37 KVA 53 KVA 74 KVA 106 KVA 159 KVA
208 VLL ±10%
230 VLL ±10%
400 VLL ±10%
480 V
LL
±10%
Line Current: 116 A
105 A
60 A
50 A
Line
47-63 Hz
RMS
187 V
LL
RMS
207 V
LL
RMS
360 V
LL
RMS
432 VLL
@
@
@
@
175 A
187 V
157 A
207 V
90 A
360 V
75 A
432 VLL
RMS
RMS
RMS
RMS
LL
LL
@
LL
@
@
@
Each MX30
chassis
requires its
own AC
service.
Total Line
currents are
2 x MX30
Frequency:
Efficiency: 85 % (typical) depending on line and load
Power Factor: 0.95 (typical) / 0.99 at full power.
Inrush Current: 230 Apk @ 208 V
220Apk @ 230 V
132Apk @ 400 V
110Apk @ 480 VLL
LL
LL
LL
Each MX30
chassis
requires its
own AC
service.
Total Peak
currents are
2 x MX30
Hold-Up Time: > 10 ms
Isolation
Voltage:
2200 VAC input to output
1350 VAC input to chassis
Each MX45
chassis
requires its
own AC
service.
Total Line
currents are
2 x MX45
Each MX45
chassis
requires its
own AC
service.
Total Peak
currents are
2 x MX45
Each MX45
chassis
requires its
own AC
service.
Total Line
currents are
3 x MX45
Each MX45
chassis
requires its
own AC
service.
Total Peak
currents are
3 x MX45
MX Series 13
User Manual – Rev AY AMETEK Programmable Power
2.1.2 Output
Note: All specifications are for AC and DC unless otherwise indicated.
Output Parameter MX30 MX45 MX60 MX90 MX135
Modes
Std
Controller
Pi
Controller
Voltage:
Ranges (L-N):
AC Mode Low: 0 - 150 V / High: 0 - 300 V
DC Mode Low: 0 - 200 V / High: 0 - 400 V
AC+DC Mode AC: Low: 0 - 150 V / High: 0 - 300 V
Note:
Resolution:
AC Mode 0.1 V
DC Mode 0.1 V
AC+DC Mode AC: 0.1 V
Accuracy: ± 0.3 V AC mode
Distortion THD1:
(Resistive full
load)
MX units shipped as of 2009
Load Regulation: 0.25 % FS @ DC - 100 Hz
Line Regulation: 0.1% for 10% input line change
DC Offset Voltage: < 20 mV
AC, DC
AC, DC, AC+DC
DC Offset: Low Vrange: 0 - 150 V
High Vrange: 0 - 220 V (Series II) / High; 0 – 250 V (Series I).
On MX units with standard controller, only one voltage range is available
unless the -R range change option is installed.
DC Offset:
Series I 0.01 V < 2.5 V
0.1 V 2.5 - 25 V
1 V > 25 V
Series II 0.01 V
± 1 V DC mode
MX units shipped before 2009
< 1 % @ 16 - 66 Hz
< 2 % @ 66 - 500 Hz
< 3 % @ > 500 Hz
< 0.5 % @ 16 - 66 Hz
< 1.00 % @ 66 - 500 Hz
< 1.50 % @ > 500 Hz
0.5 % FS @ > 100 Hz
1
The distortion specification for the MX Series is valid for pure (inductance < 12 uH) resistive load conditions and using a
30 KHz LP filter on distortion meter.
MX Series 14
User Manual – Rev AY AMETEK Programmable Power
Output Parameter MX30 MX45 MX60 MX90 MX135
Output Noise:
(20 kHz to 1 MHz)
Output Coupling DC coupled
Power (total power for all phases, either range, at full scale voltage, maximum ambient T = 35° C)
AC Mode 30 KVA 45 KVA 60 KVA 90 KVA 135 KVA
DC Mode 20 KW 30 KW 40 KW 60 KW 90 KW
AC+DC Mode The maximum power and current in the AC+DC mode is equal to that in the
Current
Note: Current, maximum amps indicated per phase available between 50 and 100 % of voltage
range. Maximum ambient temperate for full power operation at full-scale voltage is 35° C.
Constant Power Mode:
Operation at higher currents but constant power is possible from 80% of Voltage range
(125% of max. current) declining to 100% of maximum current at 100 % of voltage range
for short periods of time or at reduced ambient temperatures. (< 15 mins @ 30° C). See
Figure 2-3 and Figure 2-4. (Requires firmware revision 0.27 or higher.)
For MX30-3Pi model, constant power mode is supported at max ambient temperature.
AC Mode MX30-1
DC Mode
AC+DC Mode
Note: Current derates linearly from 50% of voltage range to 20% of specified current at 5% of
voltage range
Current Limit mode Programmable, CC or CV mode
Repetitive Peak Current
Note: Maximum Peak Current shown. Value shown reflects absolute peak current protection level. This level
may not be reached under all load conditions. Depending on load conditions, peak current may max out at lower
levels due to amplifier output impedance.
Note: As of firmware revision 4.52, a repetitive peak current limit function is provided which will generate a fault
and shut off the power supply if the peak current drawn by the load exceeds the maximum level for more than 30
seconds. During this time, the amplifier will limit the peak current at a somewhat level above the maximum level but
it is not allowable to run in this mode indefinitely. This should provide sufficient time to ride through any
startup/inrush load conditions.
AC Mode MX30-1 / MX30-3Pi 1Phs /
< 2 V
< 3 V
low V Range
RMS
high V Range
RMS
Except on optional -HV or -XV Voltage range output, which is AC coupled.
DC mode
V Lo: 200 A
V Hi: 100 A
MX30-3, per
phase
V Lo: 66.7 A
V Hi: 33.3 A
MX30-1
V Lo: 100 A
V Hi: 50 A
MX30-3, per
phase
V Lo: 33.3 A
V Hi: 16.7 A
V Lo: 300 A
V Hi: 150 A
MX45-3, per
phase
V Lo: 100 A
V Hi: 50 A
MX45-1
V Lo: 150 A
V Hi: 75 A
MX45-3, per
phase
V Lo: 50 A
V Hi: 25 A
MX45-1 / MX45-3Pi 1Phs
V Lo: 900 A
V Hi: 450 A
MX30-3 / MX30-3Pi / MX45-3
/ MX45-3Pi, per phase
MX45-1
MX60-3, per
phase
V Lo: 133 A
V Hi: 66.7 A
MX60-3, per
phase
V Lo: 66.7 A
V Hi: 33.3 A
MX90-3, per
phase
V Lo: 200 A
V Hi: 100 A
MX90-3, per
phase
V Lo: 100 A
V Hi: 50 A
MX60-3 / MX90-3, per
phase
MX135-3, per
phase
V Lo: 300 A
V Hi: 150 A
MX135-3, per
phase
V Lo: 150 A
V Hi: 75 A
MX135-3, per
phase
MX Series 15
User Manual – Rev AY AMETEK Programmable Power
Output Parameter MX30 MX45 MX60 MX90 MX135
V Lo: 300 A
V Hi: 150 A
Frequency
Range: Standard: 16 Hz - 819.0 Hz (for –HV option range, 45 Hz – 819.0 Hz)
-LF option: 16 Hz - 500.0 Hz
-HF option: 16 Hz – 905 Hz
Resolution: 0.01 Hz from 16.00 to 81.91 Hz
0.1 Hz from 82.0 to 819.0 Hz
Accuracy: ± 0.01 %
±0.25 % for –FC option
Phase (3 phase mode)
Range: Phase B/C relative to phase A
0.0 to 360.0°
Resolution: 0.1°
Accuracy: 16 Hz - 100 Hz: < 1.5°
100 Hz - 500 Hz: < 2°
> 500 Hz: < 4°
±0.25 % for –FC option
Ext. Sync Mode (not available with -FC option)
Input: Isolated TTL input for external frequency control. Requires 5V at 5 mA for
logic high.
Accuracy: Ext. Sync to phase A with fixed Ext. Sync Frequency input:
16 Hz - 100 Hz: < 2°
100 Hz - 500 Hz: < 3°
> 500 Hz: < 4°
±0.25 % for –FC option
Programmable Output Impedance (available on MX30-3Pi and MX45-3Pi in three phase mode only)
Range: R: 1 – 200 mOhm
L: 15 – 200 uH
Resolution: R: 1 mOhm
L: 1 uH
Accuracy: 10 % FS N/A N/A N/A
V Lo: 600 A
V Hi: 300 A
N/A N/A N/A
N/A N/A N/A
V Lo: 900 A
V Hi: 450 A
Note: Output specifications apply below the Current / Voltage rating lines shown in the V/I
rating chart below.
MX Series 16
User Manual – Rev AY AMETEK Programmable Power
Figure 2-1: MX30-3 Voltage / Current Rating Chart for 150/300 V AC Ranges.
100 A
100
Current
(RMS)
80
Low V Range
60
50 A
40
High V Range
20
7.5
15
Figure 2-2: MX45-3 Voltage / Current Rating Chart for 150/300 V AC Ranges – Max Rating.
75 300
150
Voltage (RMS)
MX Series 17
User Manual – Rev AY AMETEK Programmable Power
Figure 2-3: Voltage / Current Rating Chart for 150/300 V AC Ranges – Derated.
MX Series 18
User Manual – Rev AY AMETEK Programmable Power
Figure 2-4: MX30-3 Voltage / Current Rating Chart for 200/400 V DC Ranges
50 A
50
Current
(DC)
40
Low V Range
30
25 A
20
High V Range
10
20
40
Figure 2-5: MX45-3 Voltage / Current Rating Chart for 200/400 V DC Ranges – Max. Rating
100 400
200
Voltage (DC)
MX Series 19
User Manual – Rev AY AMETEK Programmable Power
0.1 to 500 Hz
62.5 A
60
50
Current
(DC)
40
30
20
10
0
20 40 100 150 200 300 400
Full
Power
31 A
25 A
Full
Power
Voltage (DC)
Figure 2-6: Voltage / Current Rating Chart for 200/400 V DC Ranges – Derated
2.1.3 AC Measurements
Measurement specifications apply to MX30-3 / MX30-3Pi / MX45-3 or MX45-3Pi in three-phase mode.
See notes for other models and configurations.
Parameter Range
Frequency 16.00 - 820.0 Hz 0.01% + 0.01 Hz 0.01 to 81.91 Hz
RMS Voltage 0 - 400 Volts 0.05V + 0.02%, <100 Hz
RMS Current 0 - 150 Amps 0.15A + 0.02%, <100 Hz
Peak Current 0 - 400 Amps 0.15A + 0.02%, <100 Hz
VA Power 0 - 15 KVA 30 VA + 0.1%, <100 Hz
Real Power 0 - 15 KW 30 W + 0.1%, <100 Hz
Power Factor
(>0.2kVA)
Note: Accuracy specifications are valid above 100 counts. For current and power measurements,
specifications apply from 2% to 100% of measurement range. Current and Power range and accuracy
specifications are times three for MX45-1, MX60, MX90 and MX135 or MX30-3Pi / MX45-3Pi in singlephase mode.
Note: Power factor accuracy applies for PF > 0.5 and VA > 50 % of max.
Accuracy (±)
0.1V + 0.02%, 100-820 Hz
0.3A + 0.02%, 100-820 Hz
0.3A + 0.02%, 100-820 Hz
60 VA + 0.1%, 100-820 Hz
60 W + 0.1%, 100-820 Hz
0.00 - 1.00 0.01, <100 Hz
0.02, 100-820 Hz
Resolution
0.01 Volt
0.01 Amp
0.01 Amp
10 VA
10 W
0.01
MX Series 20
User Manual – Rev AY AMETEK Programmable Power
frequency change. Isolated TTL output. Output reverts to Function strobe
2.1.4 DC Measurements
Parameter Range
Voltage 0 - 400 Volts 0.5 Volts 0.1 Volt
Current 0 - 400 Amps 0.5 Amps 0.01 Amp
Power 0 - 10 kW 30 W 10 W
Note: Accuracy specifications are valid above 100 counts. For current and power measurements,
specifications apply from 2% to 100% of measurement range. Current and Power accuracy and
resolution specifications are times three for MX30-1, MX45-1, MX60, MX90 and MX135 or MX30-3Pi /
2.1.5 Harmonic Measurements (Pi controller)
Harmonic measurement specifications apply to MX30-3, MX45-3, MX30-3Pi and MX45-3Pi in threephase mode. See notes for other models and configurations.
Parameter Range
Frequency fundamental 16.00 - 820 Hz 0.03% + 0.03 Hz 0.01 Hz
Frequency harmonics
MX45-3, MX45-3Pi in 3
phase mode, MX60,
MX90, MX135:
Series I
Series II
MX45-1, MX45-3Pi in 1
phase mode:
Series I
Series II
Phase 0.0 - 360.0° 2° typ. 0.5°
Voltage Fundamental 0.75V 0.01V
Harmonic 2 - 50 0.75V + 0.3% + 0.3%/kHz 0.01V
Current Fundamental 0.5A 0.1A
Harmonic 2 - 50 0.15A + 0.3% + 0.3%/kHz 0.1A
Note: For current measurements, specifications apply from 2% to 100% of measurement range.
Current range and accuracy specifications are times three for MX30-1, MX45-1, MX60, MX90 and
MX135 or MX30-3Pi / MX45-3Pi in single-phase mode.
32.00 Hz – 6.67 KHz
32.00 Hz – 16 KHz
32.00 Hz - 19.2 KHz
32.00 Hz – 48 KHz
Accuracy (±)
Accuracy (±)
0.03% + 0.03 Hz 0.01 Hz
0.03% + 0.03 Hz 0.01 Hz
Resolution
Resolution
2.1.6 System Specification
Parameter Specification
External Modulation: 0 to 10%
Synchronization
Input:
Trigger Input: External trigger source input. Requires TTL level input signal. Triggers on
Trigger Output:
Isolated TTL input for external frequency control. Requires 5V at 5 mA for
logic high.
negative edge. Response time 80 - 100 µs.
Programmable through transient list system. 400 µs pulse for voltage or
MX Series 21
User Manual – Rev AY AMETEK Programmable Power
Parameter Specification
when not uses as Trig Out. This function is mutually exclusive with the
Function Strobe output.
Function Strobe:
Output Status: Monitors status of output relay. Isolated TTL output. High if output relay is
Non volatile memory
storage:
Waveforms Sine (Models with Standard controller)
Transients Voltage: drop, step, sag, surge, sweep
IEEE-488 Interface: SH1, AH1, T6, L3, SR1, RL2, DC1, DT1
RS232C Interface: Bi-directional serial interface
USB Interface: Standard USB 1.1 peripheral.
Active for any voltage or frequency program change. 400 µs pulse for voltage
or frequency change. Isolated TTL output. This function is mutually exclusive
with the Trigger Output. Same output is used for Trigger Output if Trigger
Output is programmed as part of list system.
closed, low if output relay is open.
Series I: 8 complete instrument setups and transient lists, 32 events per list.
Series II: 16 complete instrument setups and transient lists, 100 events per
list.
Sine, square, clipped, user defined (Models with Pi controller)
Frequency: step, sag, surge, sweep
Voltage and Frequency: step, sweep
Syntax: IEEE 488.2 and SCPI
Response time is 10 ms (typical)
9 pin D-shell connector
Handshake: CTS, RTS
Data bits: 7, 8
Stop bits: 1,2
Baud rate: 9600 to 115,200 bps
Syntax: IEEE 488.2 and SCPI.
Note: Disconnect any USB connection when using the RS232 interface.
Data transfer rate: 460,800 bps
Syntax: IEEE 488.2 and SCPI.
Note: Use of the USB port to control more than one power source
from a single PC is not recommended, as communication may not be
reliable. Use GPIB interface for multiple power source control.
LAN Interface: Option –LAN. When the LAN interface is installed, the RS232 interface is
disabled.
RJ45 Connector, 10BaseT, 100BaseT or 1000BaseT,
Data transfer rate: 460,800 bps
Protocol: TCP/IP.
Syntax: IEEE 488.2 and SCP
Note: Disconnect any USB connection when using the LAN interface.
Current Limit Modes: Two selectable modes of operation:
1. Constant current mode (voltage folds back with automatic recovery)
2. Constant voltage mode with trip-off (Relays open).
MX Series 22
User Manual – Rev AY AMETEK Programmable Power
2.1.7 Unit Protection
Input Over current: In-line fast acting fuses. Check fuse rating in Service and Maintenance
Input Over voltage: Automatic shutdown.
Input Over voltage
Transients:
Output Over current: Adjustable level constant current mode with programmable set point.
Output Short Circuit: Peak and RMS current limit.
Over temperature: Automatic shutdown.
2.2 Mechanical
Parameter Specification
Dimensions:
(for each MX chassis)
Unit Weight:
(for each MX chassis)
Material: Steel chassis with aluminum panels and covers.
Finish: Light textured painted external surfaces.
Cooling: Fan cooled with air intake on the front and exhaust to the rear.
Internal Construction: Modular sub assemblies.
Rear Panel
Connections:
section. Ratings will depend on AC input configuration settings.
Circuit breaker for LV supply.
Surge protection to withstand EN50082-1 (IEC 801-4, 5) levels.
Height: 50.0” 1270 mm
Width: 28.75” 731 mm
Depth: 34.5” 876 mm
Net: 1150 lbs / 522 Kg approximately
Shipping: 1231 lbs / 560 Kg approximately
Panels semi-gloss polyurethane color no. 26440 (medium gray)
Fans: 6 x 225CFM.
Air displacement 22 Cu Ft/sec. Max.
(See section 3 for description of connections)
• Cable entry and strain relieve for AC input wiring
• Cable entry and strain relieve for output wiring
• External sense terminal block (Remote voltage sense)
• System interface (2x)
• Clock and Lock BNC's (requires -LKM or -LKS options)
• RS232, USB, GPIB, LAN (option)
• Trigger In BNC
• Trigger Out BNC
• Function Strobe BNC
• Output Status
MX Series 23
User Manual – Rev AY AMETEK Programmable Power
2.3 Environmental
Parameter Specification
Operating Temp:
Storage Temp:
Altitude: < 2000 meters
Relative Humidity:
Installation/Over voltage
Category:
Pollution Degree: 2
Indoor Use Only
Vibration: Designed to meet NSTA 1A transportation levels.
Shock: Designed to meet NSTA 1A transportation levels.
0° to +35° C. (Except in CP mode).
+32° to +104° F.
-40° to +85 °C.
-40° to +185° F.
0-95 % RAH, non-condensing maximum for temperatures up to 31°C
decreasing linearly to 50% at 40°C.
ΙΙ
2.4 Regulatory
Electromagnetic
Emissions and Immunity:
Acoustic Noise: 65 dBA maximum at 0% to 50% load, 75 dBA maximum greater than
Safety: Designed to EN 61010-1 European safety standards as required for the
2.5 Front Panel Controls
Controls:
Shuttle knob: Allows continuous change of all values including output calibration and
Decimal keypad: A conventional decimal keypad facilitates quick entry of numerical values
Up/down arrow keys: A set of up and down arrow keys is used to move the cursor position in
Function keys: Measure key will display most measurement values. Program key will
Designed to meet EN50081-2 and EN50082-2 European Emissions and
Immunity standards as required for the “CE” mark.
50% load to 100% load. Measured at one meter.
“CE” mark.
range change.
such as voltage, current limit, etc. The large blue enter key will make the
value you enter effective. Using the SET key allows the user to preset all
parameter values and update them all at once by pressing the Enter key.
all menus. This allows quick selection of the desired function or
parameter.
show all program parameters. Output on/off key for output relay control.
Phase key will switch display to show program and measured values for
each phase.
MX Series 24
User Manual – Rev AY AMETEK Programmable Power
Manual P/N 4994
-
971 for details)..
Displays:
LCD graphics display: A large high contrast LCD display with backlight provides easy to read
Status indicators: Large and bright status indicators inform the user of important power
guidance through all setup operations. An adjustable viewing angle
makes it easy to read from all practical locations.
source conditions. The Remote lamp informs the user that the unit is
under remote control. The Overload lamp indicates that excessive
current is being drawn at the output. The Over temperature lamp
illuminates when internal heat sink temperatures are too high. The Hi
Range indicator is lit any time the unit is switched to the high voltage
range. The Output On/Off indicator is on when the power source output
relays are closed.
2.6 Special Features and Options
Controller Features
Mode: Switches between 1 and 3 phase outputs. This mode is available on
Parallel Operation: Up to three units can be paralleled in a three-phase configuration (with
Clock and Lock Mode:
(Option -LKM and -LKS
required).
Controller: Programmable controller front panel assembly.
Output Relay: Standard output relay feature to isolate power source from the load.
Output On/Off: The output relay can be used to quickly disconnect the load. A green
Firmware / Software Options
- 704 Mil Std 704D & E test firmware.
- 160 RTCA/DO-160D test firmware
- 411 IEC 61000-4-11 test firmware (Pre-compliance)
- 413 IEC 61000-4-13 test firmware
-A350 Airbus A350 ABD0100.1.8.1 Test software (refer to Avionics Software
-ABD Airbus A380 ABD0100.1.8 Test software (refer to Avionics Software
models MX30-3Pi and MX45-3Pi only.
one master controller and one or two auxiliary units). (MX60, MX90 and
MX135). Only the master unit requires a controller in this setup. The
auxiliary units are controlled through the system interface.
Three units (all with controllers) can be connected in a three-phase
configuration using CLOCK and LOCK connections. Each unit requires
its own controller in this configuration. One unit acts as the master and
provides the reference clock to the auxiliary units.
Note: This option cannot be combined with –HF option.
status indicator displays the status of the output relay.
Mil Std 704A, B, C, & F test software (refer to Avionics Software Manual
P/N 4994-971 for details).
Note: Requires use of MXGui Windows application software provided on
CD ROM CIC496.
RTCA/DO-160E test software (refer to Avionics Software Manual P/N
4994-971 for details)..
Note: Requires use of MXGui Windows application software provided on
CD ROM CIC496.
Manual P/N 4994-971 for details)..
Note: Requires use of MXGui Windows application software provided on
CD ROM CIC496.
MX Series 25
User Manual – Rev AY AMETEK Programmable Power
Note: Requires use of MXGui Windows application software provided on
CD ROM CIC496.
-AMD Airbus AMD24C Test software (refer to Avionics Software Manual P/N
-B787 Boeing 787 Test software (refer to Avionics Software Manual P/N 4994-
-WHM Watt Hour Measurements (Accuracy and Resolution. See Sec. 2.6.3.)
Output Voltage Range Options
- HV Adds 400 V AC only output range.
- XV Adds customer specified AC only output range. Contact factory for
Misc. Options
-ES Emergency Shut off switch. This option key lock push button is installed
-HF Increases maximum output frequency to 905 Hz.
-LAN Adds Ethernet interface (RJ45 connector) for local area network
-LF Limits maximum output frequency to 500 Hz.
-LKM Clock and Lock system, Master. (Not available with –HF option)
-LKS Clock and Lock system, Auxiliary. (Not available with –HF option)
-MB Multi-box Option. Provides additional controllers in Auxiliary units of
-SNK Current Sink Option. Allows application of regenerative loads that feed
_FC This option will step the frequency ≠0.25% of program frequency
4994-971 for details)..
Note: Requires use of MXGui Windows application software provided on
CD ROM CIC496.
971 for details)..
Note: Requires use of MXGui Windows application software provided on
CD ROM CIC496.
details.
on the front panel of the master MX if ordered with the MX system. When
pushed in, the main AC contactor is opened disconnecting the AC input
power to the MX input transformer. Note that the controller (and LCD
display) will still be powered up but no power is available to the
amplifiers and there will be no output power either. The controller runs
off the LV supply, which must be turned off with the front panel breaker.
After the ES has been pushed, the provided key will be required to
release it. Once the ES button has been released, the MX must be
powered down using the front panel circuit breaker and turned back on
to start up again.
Note: For multibox MX Systems (MX90 and up with more than one
controller and front panel controls, each of which having an ES
emergency switch, to connect a BNC cable between the cabinets for the
ES connection. For 3 or more cabinets with controller, this BNC can be
daisy chained using BNC T connectors.
Note: Do not misplace the 2 keys provided, as no duplicates are
available from CI. If lost, the ES switch must be replaced. In that case,
contact AMETEK Programmable Power customer service.
(service@programmablepower.com ).
Note: This option cannot be combined with –LKM or -LKS option.
connection..
multi-cabinet configurations (MX60, MX90, MX135) to allow individual
MX45 units to be used stand-alone.
energy (current, power) back into the MX output stage. The energy fed
back is returned to the AC line (utility) feeding the MX.
MX Series 26
User Manual – Rev AY AMETEK Programmable Power
External Accessories (External to MX chassis)
7003-416-1 Input / Output wiring junction box. Connects two to six three-phase MX45
7003-424-1 Output noise filter, 3 phase + neutral. May be used to reduce output
7003-426-1 Output fuse box. Provides added protection for MX system
cabinet outputs, neutral and ground to a common output terminal block
housed in a metal enclosure junction box. Can also be used to connect
multiple MX chassis to common AC input service. See section 3.13 for
details.
noise of MX30 or MX45 when testing EUT’s for conducted emissions.
This is an external filter that attenuates the 250 KHz ripple frequency on
the MX output by > 20 dB. The filter is rated for 125A per phase and 800
Hz. For multi-box configurations, one filter is required per chassis.
Connects to MX30 or MX45 three-phase output terminal only.
configurations consisting of more than 2 MX cabinets. (MX135, MX180,
MX225 and MX270).
2.6.1 -HV Option Specifications
The -HV option provides an AC only output range of 0 to 400 Vac L-N. Specifications unique to the HV option are shown in the table below.
Output Parameter MX30 MX45 MX60 MX90 MX135
Modes
Pi Controller AC
Voltage:
Ranges (L-N): 0 -400 V
Resolution: 0.1 V
Accuracy: ± 0.25% of Full Scale / ± 1.0 Vac rms
Output Coupling AC coupled
Power (total power for all phases, either range, at full scale voltage)
AC Mode 30 KVA 45 KVA 60 KVA 90 KVA 135 KVA
Current
Note: Current, maximum amps per phase available between 50 and 100 % of voltage range.
MX30-1
76.5 A
MX30-3, per
phase
25.5 A
Peak Current
AC Mode MX30-1
337.5 A
MX30-3, per
phase
112.5 A
Frequency:
Range: 45 Hz – 819 Hz
with –LF option: 45 Hz – 500 Hz
MX45-1
112.5 A
MX45-3, per
phase
37.5 A
MX45-1
337.5 A
MX45-3, per
phase
112.5 A
MX60-3, per
phase
50 A
MX60-3, per
phase
225 A
MX90-3, per
phase
75 A
MX90-3, per
phase
225 A
MX135-3,
per phase
112.5 A
MX135-3,
per phase
337.5 A
MX Series 27
User Manual – Rev AY AMETEK Programmable Power
Output Parameter MX30 MX45 MX60 MX90 MX135
with –HF option: 45 Hz – 905 Hz (see also –HF option specification.)
MX Series 28
User Manual – Rev AY AMETEK Programmable Power
Note: Output specifications apply below the Current / Voltage rating lines shown in the V/I
rating chart below.
Figure 2-7: MX30-3 Voltage / Current Rating Chart, -HV Option
Current
(RMS)
37.5 A
37.5
-HV Range
20
100 200 300 400
Voltage (RMS)
Figure 2-8: MX45-3 Voltage / Current Rating Chart, -HV Option – Max. Rating.
Figure 2-9: Voltage / Current Rating Chart, -HV Option – Derated.
MX Series 29
User Manual – Rev AY AMETEK Programmable Power
2.6.2 -XV Option Specifications
Consult factory for -XV option specifications.
2.6.3 -HF Option Specifications
The -HF option extends the maximum available output frequency from 819 Hz to 905 Hz. Some
restrictions are in effect at this increased output frequency level.
All other specifications of the MX45 system remain unchanged if this option is installed except as
noted in the table below.
-HF Option:
Frequency
Range: -HF option: 16 Hz - 905 Hz
Resolution: 0.01 Hz < from 16.00 to 81.92 Hz
Accuracy: ± 0.01 %
Phase
Accuracy: 16 - 100 Hz: < 1.5°
Voltage
High Voltage Range Maximum voltage at 905 Hz is 290 Vrms
Low Voltage Range Maximum voltage at 905 Hz is 145 Vrms
-HV Voltage Range Maximum voltage at 905 Hz is 386 Vrms
Note: If the voltage or frequency settings shown here are exceeded for
0.1 Hz > from 82.0 to 819.2 Hz
1 Hz > from 820 to 905 Hz
±0.25 % for –FC option
100 - 500 Hz: < 2°
500 – 819 Hz: < 4°
819 – 905 Hz: < 5°
Maximum frequency at 300 Vrms is 875 Hz
See Figure 2-10
Maximum frequency at 150 Vrms is 875 Hz
See Figure 2-11.
Maximum frequency at 400 Vrms is 875 Hz .
any length of time (> 1 sec), the MX may shut down generating an over
temperature fault to protect itself.
MX Series 30
User Manual – Rev AY AMETEK Programmable Power
Figure 2-10: -HF Option Voltage Frequency Rating 300V range
Figure 2-11: -HF Option Voltage Frequency Rating 150V range
MX Series 31
User Manual – Rev AY AMETEK Programmable Power
2.6.4 -LF Option Specifications
The -LF option limits the maximum available output frequency to 500 Hz. All other specifications of the
MX45 system remain unchanged if this option is installed.
2.6.5 WHM Option Specifications
Watt-hour measurement mode:
Accuracy:
0-6.000KW 0.01KWH + 0.1% <100 Hz
0.02KWH +0.1% 100-819 Hz
>6.000KW Times three of the above specification
Resolution:
0.001 KWH
MX Series 32
User Manual – Rev AY AMETEK Programmable Power
100 -
500 Hz:
< 2°
of power flow.
2.6.6 SNK (AC or DC) Option Specifications
The –SNK or current sink option enables the MX power source to sink current from the unit under
test. This mode of operation is particularly useful when testing grid-tied products that feed energy
back onto the grid. The ability of the MX to simulate the grid provides unique opportunities to test the
EUT for compatibility to commonly occurring line anomalies like voltage and/or frequency fluctuations.
Examples of these types of EUT are inverters (PV Solar, Wind) hybrid drive systems, regenerative
breaks.
The SNK option requires special amplifiers that have a different control loop from the standard MX
amplifiers. Consequently, the upper frequency limit of an MX configured with the –SNK option is
500Hz as opposed to the standard 819Hz. Also, the voltage distortion levels are slightly higher than
on MX units without this option.
-SNK Option: The following specifications apply to the AC mode unless specified otherwise
Frequency
Range: -HF option: 16 Hz - 500 Hz
Resolution: 0.01 Hz < from 16.00 to 81.92 Hz
Accuracy: ± 0.01 %
Phase
Accuracy: 16 - 100 Hz: < 1.5°
0.1 Hz > from 82.0 to 500.0 Hz
±0.25 % for –FC option
Voltage
Distortion THD1:
(Resistive full load)
Power
Capability (AC & DC) Full power for the AC or DC mode can be returned into MX as long as
Without –SNK option MX units without the SNK will generate an warning message (Error 31) if
Programmable Output Impedance (available on MX15-1Pi, MX30-30Pi and MX45-3Pi only)
Auto-disabled Programmable impedance is turned off as soon as a regenerative load is
Measurements
Power Regenerated power is displayed with a negative sign to indicate direction
< 1 % @ 16 - 66 Hz
< 2 % @ 66 - 500 Hz
current does not exceed maximum current limit setting for selected range.
Refer to Figures 2-4 and 2-5 for the maximum DC current. See
REGENERATE CONTROL screen for protection settings in REGEN
mode.
more than 20% of available power (per phase) is regenerated by the load.
It will shut off (Error 32) if the negative power reaches 30% of available
power.
detected. Once turned off, it will remain off until programmed by user
again. This is required as programmable impedance is based on
delivering current which is not the case when driving a regenerative load.
All other specifications of the MX system remain unchanged if this option is installed.
1
The distortion specification for the MX Series is valid for pure (inductance < 12 uH) resistive load conditions and using a
30 KHz LP filter on distortion meter.
MX Series 33
User Manual – Rev AY AMETEK Programmable Power
2.7 Supplemental Specifications
Supplemental specifications are not warranted and generally reflect typical performance
characteristics. These characteristics have been checked on a type test basis only and are not
verified on each unit shipped. They are provided for reference only.
2.7.1 Output
Output Parameter MX30 MX45 MX60 MX90 MX135
Voltage:
Slew rate: > 0.5 V/micro sec
Stability: 0.25 % over 24 hour period at constant line, load and temperature.
Settling time: < 0.5 msec
Frequency:
Temperature
coefficient:
Stability:
Current:
Constant Power
Mode:
± 5ppm per degree C
± 15 ppm per year
Operation at higher currents but constant power is possible from 80% of
Voltage range (125% of max. current) declining to 100% of maximum current
at 100 % of voltage range for short periods of time or at reduced ambient
temperatures. (< 15 mins @ 30° C). See Figure 2-3 and Figure 2-4.
Note: This mode requires firmware revision 0.27 or higher.
2.7.2 Acoustic Noise Levels
Acoustic Noise: Measured at a distance of one meter. (3 ft.)
Front 63 dBA at no load to 68 dBA at full load.
Back 65 dBA at no load to 72 dBA at full load
MX Series 34
User Manual – Rev AY AMETEK Programmable Power
Shipping:
30” x 25” x 11” / 760 mm x 635
mm x 280 mm
2.7.3 Output Noise Spectrum
The MX series is a switching power supply and as such will have a certain amount of switching noise
at its output. While the overall RMS noise is specified, the specific noise spectrum will differ slightly
from unit to unit. The information provided in this section is for reference only.
The output noise can be reduced by using one or more external filters. A suitable filter is the P/N
7003-424-1 (Figure 2-12) available as an option. Attenuation at the 250 kHz ripple frequency is 20
dBuV. The output voltage drop at 800 Hz full load is less than 1Vrms.
Typical output noise spectrum for a standard MX45-3Pi in three phase mode operating at 400 Hz is
shown in Figure 2-13 for phase A and Neutral. The same output with the use of the optional filter is
shown in Figure 2-14. For connection information, refer to section 3.14.
MX Filter Specifications
(Model 7003-424-1)
Type
Low Pass Filter Three phase WYE, four wire. (A, B, C and Neutral)
Capability
Frequency range DC, 16 Hz - 800 Hz
Max Voltage 250 Vrms Line to Neutral / 440 Vrms L-L
Phase Current 125 Arms per phase maximum.
Impedance Voltage drop at 800 Hz, 125 A is less than 1 Vrms.
Performance
Attenuation 20 dBuV at 250 KHz.
Physical
Enclosures type Cooper B-Line P/N 16126 SC NK
Dimensions (W x D x H) Unit: 16” x 12” x 6” / 406 mm x 305 mm x 152 mm
Weight Net: 28 lbs / 12.7 Kg
Operating Temp:
Shipping: 40 lbs / 18.2 Kg
0° to +40° C. / +32° to +104° F.
MX Series 35
User Manual – Rev AY AMETEK Programmable Power
Figure 2-12: MX output filter option schematic
MX Series 36
User Manual – Rev AY AMETEK Programmable Power
Figure 2-13: MX45 Output Noise 10 KHz – 1 MHz
MX Series 37
User Manual – Rev AY AMETEK Programmable Power
Figure 2-14: MX45 Output Noise 10 KHz - 1 MHz with optional Filter
MX Series 38
User Manual – Rev AY AMETEK Programmable Power
MX Series 39
User Manual – Rev AY AMETEK Programmable Power
3. Unpacking and Installation
3.1 Unpacking
Inspect the unit for any possible shipping damage immediately upon receipt. If damage is
evident, notify the carrier. DO NOT return an instrument to the factory without prior approval. Do
not destroy the packing container until the unit has been inspected for damage in shipment. If
possible, retain the container (wooden crate) in the event the system ever has to be returned to
the factory for either repair or upgrades
WARNING: This power source weighs approximately 1150 lbs / 522
adequate help when moving the unit. Make sure the location (floor) in which the MX
Series unit(s) will be installed can support the weight of the unit(s).
3.2 Power Requirements
The MX Series power Source has been designed to operate from a three-phase, three wire (Wye
or Delta) AC input line. A protective earth connection is required as well. (PE).
Available three-phase input settings are 208 V
(option -400), or 480 V
LL
(option -480).
(option -208), 230 V
LL
Kg
. Obtain
(option -230), 400 V
LL
LL
Figure 3-1: The MX45 Power Source
CAUTION: Do not connect 400 or 480V into a unit set for 208 or 230V unit, the result
could be a severely damaged unit. Always check the input rating on the model
number tag before connecting AC input power. Consult factory if input settings have
to be changed.
MX Series 40
User Manual – Rev AY AMETEK Programmable Power
3.3 Mechanical Installation
The MX's are completely self-contained power sources. They are to be used free standing on a
solid surface. The units are fan cooled, drawing air in from the front and exhausting at the rear.
The front and back of each unit must be kept clear of obstruction and a 6” clearance must be
maintained to the rear. Special consideration of overall airflow characteristics and the resultant
internal heat rise must be considered at all times to avoid self heating and over temperature
problems.
3.4 AC Input Connections and Wiring
Three-phase Delta or Y AC input voltage of sufficient amperage (consult AC input specifications
for maximum AC current per phase) is required to power the MX Series.
Note: AC power should be routed through a properly sized and rated three-phase
PROTECTIVE CIRCUIT BREAKER or similar branch circuit protection device with
disconnect capability. This will protect building wiring and other circuits from
possible damage or shutdown in case of a system problem. It will also facilitate
removing AC input power to the MX system in case of service or reconfiguration
requirements.
Note: AC input wiring and connections must conform to local electrical safety codes
that apply. Always consult a qualified electrician prior to installation of any MX
System.
AC input connections are to be made directly to the input fuse block. The input fuse block is
located on the lower left hand corner of the front of the MX chassis. To access the input fuse
connection block, the protective front cover needs to be removed first.
CAUTION: Always disconnect any input power completely when removing
any protective cover and allow the internal capacitors to fully discharge
(minimum of 15 mins) before removing any cover.) See Figure 3-2 for details.
No wiring for AC input connections is provided with the MX Series and must be provided by the
end user or installer. Input wiring should be entered through the right hand side (when facing the
back of the MX cabinet, see Figure 3-4) wire access opening located at the rear bottom of the
MX chassis. A wire channel (marked as [2] in figure below) is provided below the input
transformer to allow the input wiring to be routed to the front of the unit where the connections
are to be made.
WARNING: The power source's input connection wiring gage (size)
must be sized for the maximum input current rating to ensure user safety and
avoid possible power source damage, regardless of the actual output load.
MX Series 41
User Manual – Rev AY AMETEK Programmable Power
Figure 3-2: Location of AC Input Fuse Block and Chassis Ground Connection -
Front View, Access Panel Removed
Note: To comply with product safety requirements, EARTH GROUND must be connected
to the chassis of the AC power system using the ground stud located directly
below the AC input fuse block. Use a Green/Yellow ground wire.
Note: DO NOT USE THE NEUTRAL CONNECTION OF A 3 PHASE Y AC POWER
CONNECTION IN PLACE OF A TRUE EARTH GROUND CONNECTION. AC power
system neutrals cannot be used for protective earth ground.
The mains source must have a current rating equal to or greater than the input fuses and the
input wiring must be sized to satisfy the applicable electrical codes. The front cover must be reinstalled prior to use and the strain relief provisions located at the rear bottom of the unit must be
used to maintain protection against hazardous conditions.
MX Series 42
User Manual – Rev AY AMETEK Programmable Power
3ø
AC Line
Input
PROTECTIVE
GROUND
Figure 3-3: MX Series AC Input Connection Diagram (Rear view)
EXTERNAL
CIRCUIT
BREAKER
AC MAINS
3 PHASE
MX Series 43
User Manual – Rev AY AMETEK Programmable Power
480 V
75 A
RMS
6 AWG
26.24
13.3
RMS
RMS
208 V
175 A
RMS
1 AWG
83.69
42.4
The input power cables and protective circuit breaker used must be large enough to handle the
input current and input voltage of the power source and must conform to local electrical codes.
Consult a qualified electrician prior to installation. Table 3-1 shows the size of the cables that
may be used per MX cabinet. Note that wires must be sized to accommodate the worst-case
maximum current that may occur under low line conditions. Local electrical codes may also
require different wire types and sizes. These ratings should also be used when selecting a circuit
breaker or equivalent disconnect device.
Cable lengths must not exceed twenty-five (25) feet. For lengths greater than 25 feet, calculate
the voltage drop from the following formula:
2 X DISTANCE X CABLE RESISTANCE PER FT. X CURRENT = VOLT DROP
Table 3-1: Suggested Input Wiring Sizes for each MX Cabinet *
Nominal Line
Voltage
400 V 90 A
230 V 157 A
Load Current
@ low line
4 AWG 41.74 21.1
2 AWG 66.36 33.6
Wire Gauge (US) Circular Mils
(Kcmils)
Metric (mm2)
* Using high temperature rated wire. Always consult the National Electrical Code and/or local code
regulations for proper rating and size of wire cabling prior to installation.
CAUTION: Capacitors in the power source may hold a hazardous electrical charge
even if the power source has been disconnected from the mains supply. Allow
capacitors to discharge to a safe voltage before touching exposed pins of mains
supply connectors.
Power modules need at least 15 Minutes to discharge to safe levels before they can be
removed.
3.5 AC On/Off Circuit Breaker on MX Series front panel.
It is important to understand the purpose and operation of the On/Off circuit breaker of the MX
Series located on the lower left side of the front panel. This is a 2A rated breaker that is used to
engage and protect the LV Power supply of the MX chassis only. The LV Power supply provides
DC bias power to the entire MX system. The AC input power is routed through a set of three AC
line fuses (F1, F2 and F3) located in the lower left bottom corner of the MX. (See Figure 3-2 for
fuse locations). These fuses protect the three MX amplifiers and the AC input transformer from
excessive input currents. The AC input power is connected to the input transformer through a
large three-pole contactor. Removing AC power to the LV Power Supply by opening the front
panel circuit breaker (moving the lever to the down (OFF) position) will cause this contactor to
loose its coil voltage and will result in it opening and disconnecting the input transformer and
amplifier from AC mains input.
Note: If any MX system failure has occurred on any part of the MX system, AC input
power must be removed immediately and not restored until the system has been
inspected by a qualifier service technician.
Always turn off the On/Off Circuit breaker before re-applying AC input power.
MX Series 44
User Manual – Rev AY AMETEK Programmable Power
CAUTION: The AC input fuses can only be checked is the MX unit is completely
de-energized and disconnected from any AC power input.
Note: Under no circumstances should AC input power be applied if one or more of the
AC input line fuses have failed and opened up.
Figure 3-4: Rear Panel
MX Series 45
User Manual – Rev AY AMETEK Programmable Power
3.6 Output Connections
3.6.1 Output Wiring
The output terminal blocks, TB1A and TB1B are located at the front of the unit behind the bottom
access panel. See Figure 3-2 for details.
Three phase output line connections are made to terminal block TB1A. The phase outputs are
labeled A, B and C. The neutral connection (if needed) can be made on terminal block TB1B. If
the model used is an MX30-1, MX30-3Pi, MX45-1 or MX45-3Pi with single-phase capability, the
single phase A output connection is available on TB1B as well. Note that the neutral for either
single or three-phase mode is always located on TB1B. The neutral connection is always
required for single-phase output mode on an MX30-3Pi or MX45-3Pi and may be used if needed
for the EUT for all three-phase output modes.
The external sense inputs allow the power system output voltages to be monitored directly at the
load and must be connected at TB2 when the sense is programmed for external. The external
sense input does not have to be connected when Internal Sense is programmed. The external
sense wires are to be connected to TB2 on the rear panel and should be run using a twisted
shielded cable. See Figure 3-4 for location of TB2 and Figure 3-5 for shield connection detail.
Note: For External Sense connection, a shielded cable MUST be used with the shield
connected to chassis ground at the Ext. Sense connector. (See Figure 3-5).
External sense is recommended for multi-cabinet systems is the output wiring from the cabinets
to the common output terminal block supplied is not of equal length.
Figure 3-5: External sense cable shield connection to chassis ground
Note: The output of the power source is isolated from the input line and floating with
respect to chassis ground. If needed, either side (HI or LO) may be grounded.
If the EUT changes frequently, you may want to consider using some quick disconnect scheme
external to the MX so it will not be necessary to power down the MX and remove the front covers.
This can take the form of a panel-mounted socket (1 or 3 phase) of sufficient current and voltage
rating. (Not supplied with MX)
MX Series 46
User Manual – Rev AY AMETEK Programmable Power
130 AMPS
4 AWG
41.74
21.1
The output power cables must be large enough to prevent a total voltage drop exceeding 1% of
the rated output voltage between the power source and the load. Table 3-2 shows the size of the
cables that may be used. Note that wires must be sized to accommodate the maximum current
that is available. This may be a function of the voltage range and phase mode on some MX
models. If the MX has more than one output voltage range, size the wires for the lowest
available voltage range as the currents will be highest in that range.
Cable lengths must not exceed twenty-five (25) feet. For lengths greater than 25 feet, calculate
the voltage drop from the following formula:
2 X DISTANCE X CABLE RESISTANCE PER FT. X CURRENT = VOLT DROP
Table 3-2: Suggested Output Wiring Sizes *
Load Current Wire Gauge (US) Circular Mils
Metric (mm2)
(kcmils)
65 AMPS 6 AWG 26.24 13.3
260 AMPS 1/0 AWG 105.6 53.5
400 AMPS 2/0 AWG 133.1 67.4
Note: Use high temperature rated wire. Always consult the National Electrical Code
and/or local code regulations for proper rating and size of wire cabling prior to
installation.
MX Series 47
User Manual – Rev AY AMETEK Programmable Power
Output Terminal Blocks
The MX30-3, MX30-3Pi, MX45-3 and MX45-3Pi have two output terminal blocks, TB1A and
TB1B. The MX45-1 only has one output terminal block, TB1B. The terminal blocks are large
enough to accommodate the recommended wire gauge sizes shown in Table 3-2. The terminal
blocks are located in the lower right corner on the front of the unit. The front panel needs to be
removed to access these terminal blocks.
CAUTION: REMOVE ALL INPUT POWER TO THE MX BEFORE REMOVING
THE FRONT PANEL.
The correct standard size Allen wrenches for connecting output wiring to TB1A and/or TB1B are
supplied with each MX in the ship kit. Look for a brown envelope. If the correct tools cannot be
found, contact AMETEK Programmable Power customer service at
service@programmablepower.com .
Terminal block TB1B always provides the output neutral connection, regardless of the phase
mode (1 or 3 phase output mode).
In single-phase mode, phase A output is provided through terminal 1 of TB1B.
In three-phase mode, phase A, B and C outputs are provided trough terminals 1, 2 and 3 of
TB1A respectively.
Connector Terminal Mode Output
TB1A 1 3 Phase Phase A
2 3 Phase Phase B
3 3 Phase Phase C
TB1B 1 1 Phase Phase A
2 1 and 3 Phase Neutral
Table 3-3: Output Terminal connections.
MX Series 48
User Manual – Rev AY AMETEK Programmable Power
Figure 3-6: Location of Output Terminals (Front view)
3.6.2 MX45-1, MX30-1, MX30-3Pi and MX45-3Pi 1 ø mode Output Wiring Diagram
Figure 3-7 shows the required output connections for a MX30-1, MX45-1, MX30-3Pi or MX45-3Pi
in single-phase mode output configuration (rear-view perspective). See section 3.6.3 for the
MX30-3Pi or MX45-3Pi in three-phase mode.
Always disconnect all input power from the MX before removing the front panel cover that
provides access to the input and output terminal connections. Route the wires from the back of
the MX to the front in the provided cable guides.
MX Series 49
User Manual – Rev AY AMETEK Programmable Power
Figure 3-7: MX30-1 / MX45-1 Output Wiring (Rear view)
MX Series 50
User Manual – Rev AY AMETEK Programmable Power
3.6.3 MX30-3, MX45-3, MX30-3Pi and MX45-3Pi 3ø mode Output Wiring Diagram
Figure 3-8 shows the required output connections for a MX30-3, MX45-3 three phase or an
MX30-3Pi and MX45-3Pi in three-phase mode output configuration (rear-view perspective). See
section 3.6.2 for the MX30-3Pi or MX45-3Pi in single-phase mode.
Always disconnect all input power from the MX before removing the front panel cover that
provides access to the input and output terminal connections. Route the wires from the back of
the MX to the front in the provided cable guides.
Figure 3-8: MX30-3 / MX45-3 Output Wiring (Rear view)
MX Series 51
User Manual – Rev AY AMETEK Programmable Power
3.6.4 MX60 or MX90 Output Wiring Diagram
Figure 3-9 shows the required output connections for a MX60-3 or MX90-3 three phase output configuration (rear-view perspective).
Always disconnect all input power from the MX60 or MX90 before removing the front panel cover that provides access to the input and
output terminal connections. Route the wires from the back of the MX30 or MX45 chassis to the front in the provided cable guides. MX60,
MX90 and MX135 systems are shipped with external output terminal blocks that enable the output wiring from two or three chassis to be
combined, providing a single point of connection to the EUT. These blocks are not enclosed however.
Figure 3-9:MX60, MX60-MB, MX90 or MX90-MB Output Wiring (Rear view)
MX Series 52
User Manual – Rev AY AMETEK Programmable Power
Figure 3-10: Two MX's in Clock and Lock mode Output Wiring (Rear view)
MX Series 53
User Manual – Rev AY AMETEK Programmable Power
3.6.5 MX135 Output Wiring Diagram
Figure 3-11 shows the required output connections for a MX135-3Pi or MX135-3Pi-MB three phase output configuration (rear-view
perspective). Always disconnect all input power from the MX135 before removing the front panel cover that provides access to the input
and output terminal connections. Route the wires from the back of the MX45 chassis to the front in the provided cable guides. Note that
the master is shown in the center in this drawing. MX60, MX90 and MX135 systems are shipped with external output terminal blocks that
enable the output wiring from two or three chassis to be combined, providing a single point of connection to the EUT. These blocks are not
enclosed however.
MX Series 54
User Manual – Rev AY AMETEK Programmable Power
Figure 3-11: MX135 or MX135-MB Output Wiring (Rear view)
MX Series 55
User Manual – Rev AY AMETEK Programmable Power
Figure 3-12: Three MX's in Clock and Lock mode - Output Wiring (Rear view)
MX Series 56
User Manual – Rev AY AMETEK Programmable Power
3.6.6 MX180, MX225, and MX270 Output Wiring Diagram
Figure 3-11 shows the required output connections for a MX180-3Pi through MX270-3Pi three phase output configuration (rear-view
perspective). For MX180, only 4 cabinets are used and for MX225 only 5 but otherwise the wiring diagrams are the same so only the
complete MX270-3Pi configuration is shown.
Always disconnect all input power from the MX180, MX225 or MX270 before removing the front panel cover that provides access to the
input and output terminal connections. Route the wires from the back of the MX45 chassis to the front in the provided cable guides.
For any of these system configurations, it is recommended to use the optional wiring junction box (P/N 7003-416-1). See section 3.13 for
details. All output wires must be of equal length so it is advisable to place the master unit at or near the physical center of the set of units.
MX Series 57
User Manual – Rev AY AMETEK Programmable Power
Figure 3-13: MX180, MX225 or MX270 Output Wiring (Rear view)
MX Series 58
User Manual – Rev AY AMETEK Programmable Power
3.6.7 Multi-Chassis Output Connections
If two or more MX chassis are used to form a single power system, the outputs of all chassis
need to be combined (paralleled by phase). This can be done directly at the EUT if convenient or
using the provided heavy-duty terminal blocks. Two blocks are provided with multi-chassis MX
systems, one 2-position block and one 3-position block. These blocks allow up to four wires to be
combined into one larger wire gauge size wire. The outputs of the 2 or 3 MX chassis are
connected on one side of these blocks (Phase A,B and C into the 3 position terminal and the
neutral into the 2 position terminal.). The EUT can be connected to the other side. Note that the
wire size to the EUT should be sized up to accommodate the double or triple currents per phase.
The dimensions of the supplied terminal blocks are shown in Figure 3-14.
Note that even if the EUT is a three-phase delta input, the output neutrals of the MX chassis'
must be connected together for the system to work correctly.
Figure 3-14: Ship kit Terminal Block dimensions
MX Series 59
User Manual – Rev AY AMETEK Programmable Power
3.7 Connectors - Rear Panel
A number of connectors are located along the top rear covers. These connectors are in a
recessed area to protect them from shipment damage.
3.7.1 System Interface
WARNING: The system interface connectors are for use with AMETEK Programmable
Power supplied cables, and only between California Instruments equipment.
The Clock and Lock BNC connectors located on the rear panel are used to synchronize and
control the phase shift between the three outputs when 3 units are operating as a three-phase
clock and lock system. This mode of operation requires the -LKM (on Master unit) and -LKS (on
Auxiliary units) options. See paragraph 3.10 for more information on this mode of operation.
A set of two identical System Interface connectors, P8 and P9 is located on the rear panel of
each MX chassis. The system interface is used to connect the multiple MX30 or MX45 power
sources in a Master/Auxiliary configuration to create MX60, MX90 or MX135 models. In these
configurations, only the Master MX30 or MX45 power source has a built-in controller and front
panel.
The same connector is also used to control the optional OMNI-3-75 Reference Impedance.
P8 / P9 Description
1 OUTP: Output ON. Controls state of output relay
2 N/C
3 N/C
4 N/C
5 COM: Common. Signal return.
6 OT: Over temperature. Indicates over temperature condition.
7 N/C
8 CLB: Current Limit B. Programmed current limit reference for phase B
9 CSA: Current Sum Phase A
10 CSC: Current Sum Phase C
11 FLT A: Amplifier Fault Phase A
12 FLT C: Amplifier Fault Phase C
13 XFMR: Optional voltage range select. (-HV or -XV option)
14 PARALLEL: Parallel operation control.
15 INPUT ON: Input power status
16 A ERR LO: Error Signal Phase A, low
17 B ERR HI: Error Signal Phase B, high
18 N/C
19 C ERR LO: Error Signal Phase C, Low
MX Series 60
User Manual – Rev AY AMETEK Programmable Power
P8 / P9 Description
20 300 VRNG: 300 V AC Range Select
21 COM: Common. Signal return.
22 /REM OFF: Remote Off Control not
23 COM: Common. Signal return
24 FLK/BYP: Flicker / Bypass OMNI control
25 /OVL: Overload not
26 CLA: Current Limit A. Programmed current limit reference for phase A
27 CLC: Current Limit C. Programmed current limit reference for phase C
28 CSB: Current Sum Phase B.
29 N/C
30 FLT B: Amplifier Fault Phase B
31 N/C
32 DC: DC mode control
33 INP OFF: Input power control
34 A ERR HI: Error Signal Phase A, high
35 N/C
36 B ERR LO: Error Signal Phase B, low
37 C ERR HI: Error Signal Phase C, high
3.7.2 Analog Input Connector
Input screw-terminal strip. Functions are called out on rear panel decal. Table shows connections
from left to right when standing at the rear of the MX cabinet.
Pin Description
1 RPV HI. INPUT: Analog input for External Modulation
2 RPV Lo. INPUT: return.
3 EXT SYNC HI INPUT: Analog input for external sync mode.
4 EXT SYNC Lo INPUT: return.
5 RI: INPUT: Remote Inhibit. (See paragraph 3.12.)
6 RI: INPUT: return.
Table 3-4: System Interface Connectors
Table 3-5: Analog Interface Connector
MX Series 61
User Manual – Rev AY AMETEK Programmable Power
3.7.3 BNC Connectors
BNC connectors. Functions are called out on rear panel decal. Table shows connections from
left to right when standing at the rear of the MX cabinet.
Table 3-6: BNC Connectors
BNC Description
1 Trigger Input (TTL input)
2 Trigger Output (TTL output) (Same signal connection as Function Strobe. Some units
3 Function Strobe (TTL output) (Same signal connection as Trigger Output)
4 Clock (TTL output on Master / TTL input on Auxiliary)
5 Lock (TTL output on Master / TTL input on Auxiliary)
6 Emergency Shut off inter connect. Installed only on –MB systems with –ES Option.
may not have this output connected. If you don’t get an output trigger on this BNC, use
the Function Strobe BNC instead.)
Table 3-7: BNC Connectors
3.7.4 External Sense Connector
Pin Description
1 Phase A sense
2 Phase B sense
3 Phase C sense
4 Neutral sense
Table 3-8: External Sense Connector
MX Series 62
User Manual – Rev AY AMETEK Programmable Power
3.7.5 RS232C Serial Interface Connector
An RS232 serial interface connector is located on the rear panel on all models. Note that two
versions of the RS232 exist on the MX model series depending on the age of the unit. Older
models can be identified by the fact that they will not have a USB interface.
Pin Name Direction
1 N/C
2 TxD Output
3 RxD Input
4 N/C
5 Common Common
6 N/C
7 CTS Input
8 RTS Output
9 N/C
Table 3-9: RS232 Connector pin out – MX with RS232 and USB.
Pin Name Direction
1 N/C
2 RxD, Receive data Output
3 TxD. Transmit data Input
4 DTR, Data Terminal Ready DTR, Data Terminal Ready
5 Common Common
6 N/C N/C
7 RTS, Request to Send Output
8 N/C N/C
9 N/C N/C
Table 3-10: RS232C Connector pin out – MX with RS232 but no USB
On MX models without a USB interface, a special RS232 cable is required to connect to a PC.
With these MX models, a special 13 foot / 4 meter long cable is supplied in the MX Series shipkit. The wiring diagram for this cable is shown below in case a longer cable has to be
constructed. Alternatively, a generic straight thru DB9 male to DB9 female cable can be used to
extend the supplied cable.
MX models that have both RS232 and USB interface use a more common straight through DB9
male to DB9 female serial cable, which is supplied in the MX ship kit for these models.
MX Series 63
User Manual – Rev AY AMETEK Programmable Power
DB-9 PC
Pin
1
2
3
4
5
6
7
8
9
Figure 3-15: RS232C Cable for PC Connection wiring diagram – MX without USB.
DB-9 AC Source
Pin
Direction
1
output
2
input
3
output
4
output
5
-
6
input
7
-
8
-
9
output
Description
reserved
Receive data(RxD)
Transmit data (TxD)
Data Terminal Ready (DTR)
Signal Ground
Data Set Ready (DSR)
no connect
no connect
reserved
MX Series 64
User Manual – Rev AY AMETEK Programmable Power
Pin Name
Description
2 D-
Data
-
3 D+ Data +
3.7.6 USB Interface
A standard USB Series B device connector is located on the rear panel for remote control. A
standard USB cable between the AC Source and a PC or USB Hub may be used.
Note: Use of the USB port to control more than one power source from a single PC is
not recommended, as communication may not be reliable. Use GPIB interface for
multiple power source control.
Figure 3-16: USB Connector pin orientation.
1 VBUS +5 VDC
4 GND Ground
Table 3-11: USB Connector pin out.
MX Series 65
User Manual – Rev AY AMETEK Programmable Power
1 Transmit/Receive Data 0 +
White with green stripe
White with orange stripe
3 Transmit/Receive Data 1 +
White with orange stripe
White wit
h green stripe
5 Transmit/Receive Data 2
- White with blue stripe
White with blue stripe
solid brown.
solid brown
3.7.7 LAN Interface – RJ45
An optional RJ45 Ethernet 10BaseT connector is located on the rear panel for remote control. A
standard RJ45 UTP patch cord between the AC Source and a network Hub may be used to
connect the AC source to a LAN. For direct connection to a PC LAN card, a crossover RJ45
cable is required. Consult your network administrator for directions on connecting the AC source
to any corporate LAN.
If the –LAN Ethernet interface option is present, the MAC Address (Media Access Control) of the
Ethernet port is printed on the serial tag of the power source. The serial tag is located on the rear
panel of the unit.
For information on how to set up a network connection or a direct PC connection using the LAN
interface, refer to the MX Series Programming Manual P/N 7003-961 distributed in Adobe PDF
format on CD ROM CIC496.
LAN
Pin Ethernet TPE
10BaseT/100BastT/1000BaseT
2 Transmit/Receive Data 0 - Green with white stripe or
4 Transmit/Receive Data 2 + Blue with white stripe or
6 Transmit/Receive Data 1 - Orange with white stripe
7 Transmit/Receive Data 3 + White with brown stripe or
8 Transmit/Receive Data 3 - Brown with white stripe or
Table 3-12: RJ45 LAN Connector pin out.
EIA/TIA 568A EIA/TIA 568B
solid green
solid blue
or solid orange
solid brown
Crossover
Orange with white stripe or
solid orange
Blue with white stripe or
solid blue
Green with white stripe or
solid
White with brown stripe or
solid brown
Brown with white stripe or
MX Series 66
User Manual – Rev AY AMETEK Programmable Power
3.7.8 ES Option - Emergency Switch Interconnect for –MB systems – BNC
An optional BNC connector is located on the rear panel for connecting multiple chassis, each
having a controller and an emergency shut off switch (-ES option). This connection is required to
create an OR-ed operation of more than one –ES switch.
This connector is only present on MX-MB systems with the –ES option. If present, a suitable
BNC cable should be used to connect the emergency shut off signal between chassis. This
connector is labeled as follows:
"Caution: BNC cable must be connected for system Emergency Shut-Down"
See figure below for an illustration of a MX90-MB-ES interconnect.
Figure 3-17: Emergency Switch (ES Option) shut off inter connect on -MB systems.
MX Series 67
User Manual – Rev AY AMETEK Programmable Power
3.8 Multiple Cabinet System Configurations (incl. –MB)
Multi-cabinet MX models consist of two or three autonomous or Auxiliary MX45-3Pi units.
Auxiliary units do not have their own controller and are identified easily by their blank front panel
(except for status indicator LEDs). Master units each have their own controller but can be
configured as auxiliary units by disconnecting the ribbon cable marked J17 between the
controller and the system interface board (P/N 7003-700-1 or P/N 7003-715-1). This disables the
controller and allows the MX45 to operate as an Auxiliary unit. (Requires removal of the top
cover). See section 4.2.11.5 for information on setting the SYSTEM field in the configuration
menu when changing configurations on MX systems with the –MB (Multi-box) option.
When used as a multi-cabinet system for higher power applications, the controllers in the unit(s)
acting as the auxiliary to the master are either disabled or not present. For normal system
configurations such as MX90-3Pi, the auxiliary unit will not have a controller or front panel and
will have been factory configured for auxiliary operation.
For –MB systems such as MX90-3Pi-MB, the controller in the auxiliary unit must be disabled
using S1. The SYSTEM field in the master unit controllers CONFIGURATION SETUP 3 screen
must be set to the correct system configuration setting as well. The SYSTEM field for the
controller in the auxiliary unit must be set to AUX if it is used as an auxiliary unit. See section
4.2.11.5.
Note: New SYSTEM field configuration settings do not take effect until power is cycled.
In addition to disabling the controller if present (as described above), the DIP switch (S1) located
on the GPIB / RS232C / IO assembly in the auxiliary cabinets. (Requires removal of the top
cover). The correct switch settings are shown below. (shown set for Master cabinet). Note that all
units must be powered down before reconfiguring. Also, the output wiring must be changed to
accommodate the new configuration.
Note: If the units being re-configured for multi-cabinet operation were not factory
configured this way, it may be necessary to balance the amplifiers by adjusting
their gain. Refer to section 6.4 for details on Amplifier balancing.
When used as a multi-cabinet system, the system interface cables must be connected between
the master and the auxiliary cabinets.
Note: If the –MB system has the –ES emergency shut off switch option, it is required to
connect the ES BNC’s between master chassis. See section 3.7.8.
MX Series 68
User Manual – Rev AY AMETEK Programmable Power
Top View
from back of MX
chassis
Interface Board
Detail
view
S1
DIP S1
MASTER
AUX
1 2 3 4
SINGLE-CAB
MULTI-CAB
MODE
Figure 3-18: Multi-Cabinet DIP Switch Location and Setting
MX Series 69
User Manual – Rev AY AMETEK Programmable Power
3.9 Multiple Cabinet Power Up/Down Procedures
For all multi-cabinet MX Series configurations (MX60, MX90, MX135, MX180, MX225 and
MX270), the following Power Up (Turn on) and Power Down (Turn off) procedures should be
observed.
3.9.1 Power Up Procedure
Follow these steps:
1. Turn on each of the Auxiliary units using the front panel circuit breaker, one at a time.
The exact order for turning on the auxiliary units is not important. Note that the bias
supplies of each of the auxiliary cabinets will power up but not the actual amplifiers. This
is because the auxiliary units are waiting for the turn on signal from the master unit.
2. Once all auxiliary units are on, turn on the MASTER unit LAST using the front panel
circuit breaker. The master unit will go through an initialization process and power up
itself plus the auxiliary units.
3. Allow 20 to 30 seconds for the turn on sequence to complete before attempting to
communicate with the system.
3.9.2 Power Down Procedure
The power-down / shutdown sequence for the system is the reverse of the power-up / turn-on
sequence. This means the MASTER unit is turned off FIRST. Once the MASTER shuts down,
all auxiliary units’ main AC input power contactors will open up automatically. They still need to
be turned off individually using the front panel circuit breaker. This will shut down their bias
supplies as well.
Follow these steps:
1. Disconnect the EUT by opening the MX output relay. Use the Output On/Off button on
the master unit front panel or send the “OUTPUT 0” command over the bus to do so.
2. Turn off the MASTER unit FIRST using the front panel circuit breaker. The master unit
will disengage the main AC power input contactors of all auxiliary units at this time.
3. Next, turn off each of the Auxiliary units using the front panel circuit breaker, one at a
time. The exact order for turning off the auxiliary units is not important.
MX Series 70
User Manual – Rev AY AMETEK Programmable Power
3.10 Clock and Lock Configurations
The MX Series may optionally be equipped for clock and lock mode of operation. This mode is a
special form of Master/Auxiliary, which requires each chassis to have its controller. As such, it is
possible to create 2, 3, 6 or 9 phase power systems using 2 to 3 MX chassis. For most 2 or 3
phase configurations, the normal multi-box mode of operation as described in section 3.8 is
recommended as it provides a single controller (and GPIB/RS232 control interface).
In a clock and lock configuration, each unit has its own front panel controls (as well as individual
GPIB and RS232C interfaces) for operating the supply but the output frequency of the auxiliary
unit(s) (-LKS option) is synchronized (locked) tot he Master MX unit (-LKM).
This mode of operation requires that one MX has the -LKM (Lock Master) option and one or two
MX units have the -LKS (Lock auxiliary) option.
3.10.1 Clock/Lock Configuration Settings
Clock and lock configuration. settings for -LKM and -LKS equipped MX's are set at the factory at
the time of shipment and cannot be changed. To check the configuration settings for an MX,
select the UTILITY2, CONFIGURATION screen. In the configuration screen, the CLK/LOC entry
determines if the unit is a Master or Auxiliary as follows:
CONFIGURATION 2
Field
CLK/LOC N/A Stand alone MX or MX-LKM clock and lock
ON Auxiliary MX.
Note that the actual mode of operation of a Clock/Lock MX-LKM auxiliary unit is determined by
the Clock mode set in the PROGRAM2 screen. For clock and lock mode of operation, the master
is set to INT and the Auxiliary to EXT.
Parameter
Table 3-13: Clock and Lock Configuration settings
Description
master.
Frequency mode is set to either INT (internal
= default) or SYNC (external sync).
Frequency mode selection is INT (internal =
for stand alone use) or EXT (external for
Clock and Lock mode operation.)
MX Series 71
User Manual – Rev AY AMETEK Programmable Power
3.10.2 Clock/Lock Initialization Settings
The mode of operation of the MX-LKS auxiliary unit is determined by the Clock mode set in the
PROGRAM2 screen. Since most clock and lock systems are permanently used in this
configuration, the clock mode can be set to EXT (External) at power on by using the INITIAL
SETUP3 screen.
Available initial settings and their relationship to the Clock and Lock mode of operation are
shown in the table below.
INITIAL SETUP 3
Field
Parameter
Description
CLK/LOC STAND Normal stand alone mode of operation. For
standard MX power source with no clock and
lock mode of operation.
MASTER For master (-LKM) power source in clock and
lock mode of operation.
AUX For auxiliary (-LKS) power source in clock and
lock mode of operation. Powers up with clock
mode set to external.
Table 3-14: Clock and Lock Initialization settings
3.10.3 Clock/Lock and External Sync Mode
Note that an MX-LKM auxiliary unit is factory configured to operate in Clock and Lock mode
when EXT clock mode is selected in the PROGRAM2 screen. This means that a MX-LKS
cannot be used in normal external sync mode. However, the MX-LKM master unit can be
operated in external sync mode. Note: External sync mode is not available with the FC
option.
Furthermore, since the MX-LKM master unit is factory set for Master mode of operation, it in turn
cannot be used as an Auxiliary source in a clock and lock configuration.
3.10.4 Remote Programming of Clock and Lock systems
Since clock and lock systems have multiple autonomous controllers that are synchronized in
frequency, remote programming of these systems requires that the application program deals
with all MX controllers. This often precludes the use of RS232C as generally not enough serial
ports are available. The use of GPIB instead also offers the advantage of using the Group
Execute Trigger (GET) capability to effect output changes on all phases (MX's) simultaneously
which is otherwise difficult to do.
To set up a GPIB remote controlled clock and lock systems, the GPIB addresses for the
individual MX's must be set to different address values in the UTILITY1, GPIB/RS232 SETUP
screen.
MX Series 72
User Manual – Rev AY AMETEK Programmable Power
Note: This mode of operation is not supported by the MXGUI Windows software
supplied with each MX unit.
MX Series 73
User Manual – Rev AY AMETEK Programmable Power
3.11 Basic Initial Functional Test
CAUTION: Work carefully when performing these tests; hazardous voltages
are present on the input and output during this test.
Refer to Figure 3-19 for the required functional test set up. Proceed as follows to perform a basic
function check of the power system:
1. Verify the correct AC line input rating on the nameplate of the MX unit(s) and make sure the
correct three-phase line voltage is wired to the input of the MX before applying input power.
2. Connect a suitable resistive or other type load to the output of the MX. The load resistance
value will depend on the voltage range you plan to check. Make sure the power resistor has
sufficient power dissipation capability - up to 15 KW for full load test on one phase of MX45-3
or 10 KW for full load test on one phase of M30-3Pi - and that the load used does not exceed
the maximum power rating of the MX. For three phase configurations, this test can be
performed on one phase at a time if needed.
3. Connect an oscilloscope and DMM / voltmeter to the AC source output. Set both for AC
mode.
4. If the correct voltage is present, turn on the MX unit(s) by closing the On/Off circuit breaker
on the front panel. For multi-cabinet systems, turn on the auxiliary unit first and wait for them
to cycle on, then turn on the master unit.
5. If the MX has more than one available output voltage range, go to the PROGRAM 1 screen
and select the desired voltage range. The output mode can be set from the PROGRAM 2
screen (use the MORE soft key or press the PROGR function key again). Select AC mode.
6. Set the output voltage to 0 volt and close the output relay with the OUTPUT ON/OFF button.
There should be little or no output although the DMM may show a noise level, especially if
the DMM is in auto ranging mode.
7. Move the cursor to the VOLTAGE field in the PROGRAM 1 screen and either use the
keyboard to program a small voltage (20 VAC) or slew the voltage up slowly with the knob.
Observe the DMM reading. The reading should track the programmed voltage.
8. Also monitor the scope. The output should be a sinusoidal voltage waveform.
9. If the output tracks, increase the voltage till you reach 80 % of the voltage range or more.
Check the output voltage reading and waveform.
10. Select the MEASUREMENT 1 screen by pressing the MEAS button. The output voltage,
current and power will be displayed. For three phase configurations, use the PHASE button
to select the øABC display mode. This will show the voltage, current and power for all three
phases. If all phases are loaded equally, the same current and power should be visible for
all three unless the voltages are not programmed to the same level. If only one phase is
loaded, current and power will only be shown for the loaded phase.
MX Series 74
User Manual – Rev AY AMETEK Programmable Power
AC Line
AC Line
A, B or C
In the unlikely event the power source does not pass the functional test, refer to the calibration
procedure in Section 6 or call California Instrument’s customer satisfaction department for further
assistance.
(Rear view)
Connect
Scope
Power
Resistor
15 kW
Figure 3-19: Functional Test Setup.
3ø
Input
DMM
MX Series 75
User Manual – Rev AY AMETEK Programmable Power
3.12 Remote Inhibit / Remote Shutdown
It may be necessary to provide a remote shutdown of the AC or DC output of the MX. The
external remote inhibit input may be used for this purpose (RI). This input is also referred to as
remote shutdown.
The default mode of operation for the RI input is a contact closure between pins 5 and 6 (return)
of the rear panel screw-terminal strip. This will open the output relay of the MX.
If the firmware revision of the MX is 0.28 or higher, it is possible to reverse the polarity of the RI
input. This requires the use of the following bus command:
OUTPut:RI[:LEVel] HIGH /* Sets RI polarity to active high.
OUTPut:RI[:LEVel] LOW /* Sets RI polarity to active low (Factory default)
The remote control interface must be used to change this setting. Once set, the polarity setting
remains in effect. On units with firmware rev 0.27 or lower, this input level mode selection is not
available.
MX Series I
When set to HIGH, an active low TTL level or a contact closure is required to enable the output
relay of the MX. Opening the contact or removing the low input signal will cause the output relay
to open.
MX Series II
The way the MX responds to a remote inhibit event can be programmed over the remote control
interface using the OUTP:RI:MODE command. See 7003-961 programming manual for details
on changing modes. The mode set is retained at power off and recalled at power up so stays in
effect till changed again over the bus.
The following modes are supported.
MODE OPERATION
LATCHING A TTL low at the RI input latches the output in the
protection shutdown state. This state can only be
cleared by sending a OUTPut:PROTection:CLEar
command over the bus.
LIVE The output state follows the state of the RI input. A TTL
low or contact closure at the RI input turns the output
off; a TTL high or open contact turns the output on.
This mode is equivalent to using the Output On/Off
button on the front panel.
Default mode. Units are shipped in this mode.
OFF The instrument ignores the RI input.
Table 3-15: Remote Inhibit Mode Settings
NOTE: When using the Remote Inhibit input, it will be necessary to disconnect any RI
connection to the MX master unit when turning on the MX master unit. During
initialization, the RI connection must be OPEN or initialization will be halted with
the message WARING FOR AUXILIARY displayed on the LCD screen.
MX Series 76
User Manual – Rev AY AMETEK Programmable Power
W x L x H Chassis
12.125 “ x 16.125” x 4.125”
308 x 410 x 105 mm
Strain relief hole size:
1.5” diameter
38 mm diameter
3.13 Junction Box Accessory
An optional wiring junction box (P/N 7003-416-1) is available which may be used to connect the
outputs of 2 to 6 MX cabinets together. The junction box also has a protective ground
connection, which MUST be connected to a suitable protective earth ground.
Each junction box has four sets of terminals for phase A, phase B, phase C and Neutral. Each
terminal is lined up with a strain relief on each side. The outputs from the MX45 cabinets connect
to the “MX SYSTEM OUTPUT” side of these terminal blocks. The load can be connected to the
“LOAD”. Note that the wiring is not supplied with the system and must be provided by the end
user. The wire gauge of the load connection must be sized to handle the maximum current in the
low voltage range of operation.
The “MX SYSTEM OUTPUT” side of the terminal block will accept up to 8 wires. If the external
sense connection is made at the junction box, one of these can be used to connect the sense
wiring.
Note: Do not swap output load wires or sense wires between phases, as damage to the system
will result.
The “LOAD” side will accept 2 wires. The wire size range shown in Figure 3-20 refers to
mechanical compatibility of terminal block only. This information does not reflect required wire
size. The wire sizes accepted by the terminal blocks of the junction box on each side are shown
in Figure 3-20.
MX Series 77
Figure 3-20: 7003-416-1 Output Junction Box
Dimensions 7003-416-1:
Feet height: 0.875 22 mm
User Manual – Rev AY AMETEK Programmable Power
Strain relief hole size:
1.5” diameter
38 mm diameter
3.14 Output Filter Box Accessory
An optional output filter box (P/N 7003-424-1) is available which may be used reduce the amount
of ripple and noise present at the output of the MX30/45-3Pi.
The filter must be connected between the three-phase output of the MX30/45 and the unit under
test. To access the connection terminal blocks, the top cover of the filter case must be removed.
Note: Make sure all power is off when connecting the filter accessory.
The output of the MX30/45 is connected to the input side of the filter. Use terminal blocks TB1A
(phases A and B) and TB1B (phase C and neutral) as indicated in Figure 3-21. The load can be
connected to the load side of the filter box using terminal blocks TB2A and TB2B. Do not swap
phases through the filter.
To compensate for voltage drop across the filter, the external sense connections can be made at
the load (load side of the filter).
Note: The filter box chassis must be connected to earth ground.
It is not recommended to use the ground connection on the MX30//45 itself for this purpose but
rather a ground point at the AC service to the MX30/45.
Figure 3-21: 7003-424-1 Output noise filter box.
Dimensions 7003-424-1:
W x L x H Chassis 12.125 “ x 16.125” x 4.125” 308 x 410 x 105 mm
Feet height: 0.875 22 mm
MX Series 78
User Manual – Rev AY AMETEK Programmable Power
W x L x H Chassis
12.125 “ x 16.125” x 4.125”
308 x 410 x 105 mm
Strain relief hole size:
1.5” diameter
38 mm diameter
3.15 Fuse Box Accessory
An Output Fuse Box (P/N 7003-426-1) is provided with MX systems consisting of more than 2
cabinets. This fuse box provides protection against excessive current circulating between
amplifiers in different chassis in case of a system malfunction.
Each fuse is capable of sustaining up to 125 Arms of AC current, which is the maximum
available current per MX amplifier.
Each fuse box has 9 sets of 3 fuses for phase A, phase B and phase C. Each fuse terminal is
lined up with a strain relief on each side of the box. The outputs from the MX45 cabinets connect
to the “MX 45 SOURCE” side of fuse box. The outputs of the fuse box (marked “JUNCTION
BOX” are normally routed to the 7003-416-1 Junction box (marked “MX SYSTEM OUTPUT”)
where the outputs of the various cabinets are combined for each phase. The load can then be
connected to the “LOAD” side of the junction box.
Note: The Fuse box enclosure must be connected to Earth ground using the provided
ground stud.
MX Series 79
Figure 3-22: 7003-426-1 Output Fuse Box
Dimensions 7003-426-1:
Feet height: 0.875 22 mm
User Manual – Rev AY AMETEK Programmable Power
4. Front Panel Operation
4.1 Tour of the Front Panel
The MX Series with type P or type Pi have identical front panels although some of the keys found
on the front panel are only used by MX models with the 3Pi controller. If your unit is a P type
controller, these keys will act as don’t cares. This chapter provides information on operating the
MX with either controller type.
Before operating the AC source using the front panel, it helps to understand the operation of the
front panel controls. Specifically, the operation of the knob, keyboard and the menu layout are
covered in the next few paragraphs.
4.1.1 Front Panel Controls and Indicators
The front panel can be divided in a small number of functional areas:
• Mains circuit breaker
• Status Indicator lights
• Shuttle knob
• LCD display
• FUNCTION keypad
• DATA ENTRY keypad
4.1.2 System On/Off Circuit Breaker
The circuit breaker located on the bottom left side of the front panel disconnects the low voltage
supply of the MX Source from the three phase Line input. This will remove power from the mains
AC input contactor and thus remove input power from the MX Series power source. As such, the
circuit breaker acts as an indirect power on/off switch for the MX Series unit. Note however than
AC input power remains applied to the primary side of the input transformer.
When the input current rating of the MX Series AC power source is exceeded, the protective
fuses (F1 through F3) will blow. In this case, power to the low voltage supply may still remain
through the front panel circuit breaker. In this case, the on/off circuit breaker should be opened
(power off) first followed by a complete disconnect of all ac input power through an installed main
circuit breaker.
Note that in MX60, MX90 and MX135 systems, each unit has its own on/off circuit breaker and
set of line input fuses.
MX Series 80
User Manual – Rev AY AMETEK Programmable Power
4.1.3 Status Indicator Lights
Four LED status indicators are located directly above the mains circuit breaker. These LED’s
correspond to the following conditions:
REMOTE The REMOTE LED indicates that the unit is in remote control
mode. If the IEEE-488 interface is used, this indicator will be lit
whenever the REM line (REMOTE ENABLE) line is asserted by
the IEEE controller. If the RS232, USB or LAN interface is used,
the REMOTE state can be enabled by the controller using the
SYST:REM command. Any time the REMOTE LED is lit, the
front panel of the MX Series unit is disabled. There is no LOCAL
button that allows the user to regain control of the front panel.
This prevents accidental change of settings in ATE applications.
OVERLOAD The OVERLOAD LED indicates an output overload condition.
This condition can be controlled by setting the current limit value
in the PROGRAM menu. Removing the load using the OUTPUT
ON/OFF button will recover from an overload condition.
OVER TEMPERATURE The OVER TEMPERATURE LED indicates an overheating
problem inside the unit. This is an abnormal condition, which will
cause the unit to shut off. Check the air openings to make sure
they are not blocked.
HI RANGE The HI RANGE LED is on when the high voltage output range
has been selected.
MX Series 81
User Manual – Rev AY AMETEK Programmable Power
4.1.4 The Shuttle Knob
Counter
Clock
wise
Clock
wise
INCRDECR
Figure 4-1: Shuttle Knob
The shuttle knob is located to the right of the LCD screen and is used to change setup
parameters. Note that it cannot be used to move the cursor position between menu fields. Use
the UP and DOWN arrow keys in the FUNCTION keypad for this.
The shuttle knob can operate in one of two distinct modes of operation:
MODE DESCRIPTION
IMMEDIATE mode Any time the ENTER key is pressed, the MX Series returns to its
normal mode of operation. In this mode, changes made with the
shuttle knob or the data entry keypad will take immediate effect.
The IMMEDIATE mode is useful for slewing output values such
as voltage and frequency and observing the effect on the load.
SET mode When the SET key located in the FUNCTION keypad is
pressed, changes made with the shuttle to any output parameter
will not take effect until the ENTER key is pressed. In this mode,
any changes made to a setup menu will be blinking to indicate
the pending change condition. This mode allows changes to be
made to all output parameters and executing them all at once by
pressing the ENTER key.
MX Series 82
User Manual – Rev AY AMETEK Programmable Power
4.1.5 FUNCTION Keypad
The function keypad provides access to all menus and measurement screens. The following
keys are located in the FUNCTION keypad:
FUNCTION
MENU PROG WAVE MEAS
OUTPUT
ON/OFF
Figure 4-2: FUNCTION Keypad
KEY DESCRIPTION
MENU The top level menu is accessed by pressing the MENU key.
Three shortcut keys are used to provide direct access to the
PROGRAM, WAVEFORM, and MEASUREMENT screens as
these are among the most frequently used screens. Thus,
instead of going through the main menu to reach the
PROGRAM, WAVEFORM, and MEASUREMENT screens, they
can be accessed directly by pressing the PROG, WAVE, and
MEAS keys respectively. A map of the Main menus is provided
on the next few pages. There are three top level menus in the
MX Series.
PROG The PROG key is a shortcut to access the PROGRAM menu
directly. The PROGRAM menu is one of the most frequently
used menus. Thus, instead of going through the main menu to
reach the PROGRAM menu, it can be accessed directly by
pressing the PROG key.
WAVE The WAVE key is a shortcut to access the WAVEFORM screen
directly. The WAVEFORM screen is used to select a user
defined arbitrary waveform. (3Pi controller only)
PHASE
SET
+/-
MEAS The MEAS key is a shortcut to access the MEASUREMENT
screen directly. The MEASUREMENT screen is one of the most
frequently used screens. Thus, instead of going through the
main menu to reach the MEASUREMENT screen, it can be
accessed directly by pressing the MEAS key.
MX Series 83
User Manual – Rev AY AMETEK Programmable Power
OUTPUT ON/OFF The OUTPUT ON/OFF key toggles the output relay on or off.
The state of the output relay is reflected by the green LED
located directly to the left of the OUTPUT ON/OFF key. If the
green LED is lit, the output relay is enabled (closed) and the
programmed output voltage is present at the output terminals. If
the green LED is off, the output relay is open and both the HIGH
and LO terminal of the output terminal block are disconnected
from the power source. In this mode, the output is floating. The
ON/OFF button provides a convenient way to disconnect the
load without having to remove any wires.
PHASE The PHASE key is used to select the phase on a MX30-3Pi or
MX45-3Pi model. Pressing the PHASE key will toggle phase A,
B, C or ABC. Some screens may not support the ABC or show
all phase information in which case this mode is skipped. (3Pi
controller only)
SET The SET key is used to select the mode of operation of the
shuttle. Refer to section 4.1.1 for details on its operation and the
use of the SET key.
+/- The +/- key can be used to toggle the sign for those parameters
for which it is relevant. This is typically the output voltage when
in DC mode of operation. For fields that have only two possible
values such as the voltage range field, the +/- key can be used
to toggle between these two values.
MX Series 84
User Manual – Rev AY AMETEK Programmable Power
4.1.6 DECIMAL KEYPAD
The decimal keypad may be used to enter any numeric parameter required in any of the menu
fields. Several fields accept input from either the keypad or the knob. Data entered from the
keypad is normally accepted once the ENTER key is pressed unless the front panel mode is in
the SET mode. The following keys are available on the decimal keypad:
ENTRY
7
8 9
4 5 6
1 2 3
.0
Figure 4-3: Entering Values from the Decimal Keypad
CURSOR UP The UP key moves the cursor position upwards one position to
the previous available cursor position. If the present cursor
position is at the top of the right hand column, the cursor is
moved to the bottom position of the left hand column. If the
present cursor is at the top of the left hand column, the cursor is
moved to the bottom of the right hand column. Figure 4-4
depicts the cursor movement through a two column menu.
E
N
T
E
R
Figure 4-4: Cursor UP Key Movement
CURSOR DOWN The DOWN key moves the cursor position downwards one
position to the next available cursor position. If the present
cursor position is at the bottom of the left hand column, the
cursor is moved to the top position of the right hand column. If
the present cursor is at the bottom of the right hand column, the
cursor is moved to the top of the left hand column. Figure 4-5
depicts the cursor movement through a two-column menu.
MX Series 85
User Manual – Rev AY AMETEK Programmable Power
Figure 4-5: Cursor DOWN key Movement
The decimal keypad can be used at any time in lieu of the shuttle knob to change output
parameters. Direct data entry is often faster to effect large changes in values than using the
shuttle knob. Note that pressing the ENTER key while in SET mode of operation will cause the
AC source to revert back to IMMEDIATE mode. Thus, to change all parameters in SET mode,
enter a value for each field and then proceed to the next field without pressing the ENTER key.
0 through 9. The numeric keys provide all decimal number for entry of
parameters.
DECIMAL POINT The decimal point key is used to enter fractional parts of values
for fields that have a resolution less than 1. The amount of
resolution for each menu field is normally visible on the LCD. If
more digits are entered after the decimal point than can be
accepted by a field, the value is automatically rounded to the
available resolution when the ENTER key is pressed.
BACKSPACE The BACKSPACE (←) key can be used to erase one digit at a
time if you make a data entry error.
4.1.7 LCD Display
The LCD display of the MX Series power source provides information on instrument settings and
also guides the user through the various menus. To ease reading of the displayed information,
most screens are widely spaced. A sample of the main menu 1 screen that appears when the
MX Series source is powered up is shown in Figure 4-6. Due to the amount of space available on
each screen, some menus have been split into parts. The MORE selection located at the bottom
right hand side provides access to menu choices at the same level that did not fit on a single
screen. Thus, to access MENU 2, the cursor should be placed on the ‘MORE’ selection followed
by pressing the ‘ENTER’ key. Alternatively, the MENU key may be pressed to move to the
MENU 2 screen.
The present cursor position is always shown with a inverse bar. The cursor is located on the
‘MORE’ selection in Figure 4-6. Pressing ENTER would cause MENU 2 to be displayed.
The cursor position can be moved by using the UP and DOWN keys located in the DECIMAL
keypad.
Figure 4-6: Main Menu 1 Screen
MX Series 86
User Manual – Rev AY AMETEK Programmable Power
4.2 Menu Structure
The next few pages show a map of the available menus in the MX Series. There are three main
level (level 1) menus from which all other menus can be reached. Frequently used (level 2)
menus have a short cut key that provides direct access. Examples of such menus are Program,
Measurements, and Waveform. In any case, there are never more than three levels of menus
although some menus may be spread across more than one screen.
4.2.1 MAIN Menus
Figure 4-7: Menu 1 through 3
The top-level menu is split in three parts, MENU 1 through MENU 3 to allow spacing between
menu entries. MENU 2 and 3 can be reached from MENU 1 by selecting the MORE entry or by
pressing the MENU key repeatedly, which will toggle from MENU 1 to 2 to 3 and back to 1. The
division of menu choices between the two screens is graphically illustrated in 4.2.2 by the boxes
in level 1. Each box represents one screen. Subsequent screens can be reached using the
MORE entry.
MX Series 87
User Manual – Rev AY AMETEK Programmable Power
The following top-level menu choices can be accessed from the MENU key:
Entry Description
MENU 1
PROGRAM The PROGRAM menu allows output parameters the be
changed.
MEASUREMENTS The MEASUREMENTS screens are not menus in that no user
entries are required.
TRANSIENTS The TRANSIENTS menu allows output transients to be
programmed.
WAVEFORMS The WAVEFORMS menu allows different waveforms to be
selected from the waveform library.
MORE The MORE selection causes the second part of the MENU
screen to be displayed. (MENU 2)
MENU 2
ADVANCED MEAS. The ADVANCED MEAS. screens are for display only. No user
entries are required.
APPLICATIONS The APPLICATIONS menu provides access to the optional
firmware application programs that may be installed in the MX
Series AC source.
SETUP REGISTERS The SETUP REGISTERS menu allows complete instrument
settings and transient list programs to be saved to nonvolatile
memory.
MORE The MORE selection causes the third part of the MENU screen
to be displayed. (MENU 3)
MENU 3
UTILITY The UTILITY menu provides access to less commonly used
setup screens such as those for the GPIB and RS232C (also
applies to USB and LAN) interface settings, initial startup
values, etc.
OUTPUT IMPEDANCE The OUTPUT IMPEDANCE menu provides control of the AC
source output impedance. (MX30-3Pi or MX45-3Pi model
only)
MEASUREMENT CAL The MEASUREMENT CAL menu allows for calibration of the
AC source measurement system.
OUTPUT CAL The OUTPUT CAL menu allows for calibration of the AC source
output.
Following the Menu overview pages is a detailed description of each menu and sub menu.
MX Series 88
User Manual – Rev AY AMETEK Programmable Power
4.2.2 Overview of Menu 1
level 1
MENU 1 PROGRAM
MEASUREMENT
S
level 2
PROGRAM1
VOLTAGE
FREQ
VOLT RANGE
CURR LIMIT
MORE
PROGRAM2
PHASE
CLOCK MODE
VOLT MODE
DC OFFSET
START ø
MEASUREMENTS1
VOLTAGE
CURRENT
FREQ
POWER
MORE
MEASUREMENTS 2
VA POWER
PEAK CURR
POWER FACT
CREST FACT
PEAK CURR RESET
MEASUREMENTS 3
VOLT THD
CURR THD
INST PK CURR
PHASE
HARMONICS/TRACE
ANALYSIS
FUNCTION
VIEW
DATA MODE
SCALE
TRIG MODE
TRIG SOURCE
TRIG PHASE
TRIG DELAY
START
level 3
TRANSIENTS
WAVEFORMS
MORE
VOLT SURGE/SAG
VOLT SWEEP/STEP
FREQ SWEEP/STEP
VOLT/FREQ SWEEP/STEP
START/VIEW SEQUENCE START END VOLT END DELAY DURATION END VOLT
PREVIOUS SCREEN
CLIP LEVEL
GROUP
MODE
SINE
SQUARE
CLIPPED
USER WAVE
..
..
USER WAVE
PAUSE END FREQ FUNCTION END DELAY END DELAY
REPEAT #0 END DELAY REPEAT FUNCTION FUNCTION
CLEAR SEQ FUNCTION EVENT# REPEAT REPEAT
#1 SEQUENCE#
#2 PREVIOUS SCREEN
..
#98
#99
PREVIOUS SCREEN
DURATION END FREQ DUR SCALE DURATION
REPEAT PREVIOUS SCREEN EVENT# EVENT#
DURATION END VOLT DUR SCALE
START ø GO TO VOLT
PREVIOUS SCREEN PREV. SCREEN
START ø
MX Series 89
User Manual – Rev AY AMETEK Programmable Power
4.2.3 Overview of Menu 2 and 3
level 1
MENU 2 ADVANCE
MEAS.
APPLICATIONS
SETUP
REGISTERS
MORE
MENU 3 UTILITY
OUTPUT
IMPEDANCE
MEASUREMENT VOLT FS
CAL
1
CONFIGURATION SETUP 3 menu available on Series II models only.
level 2
HARMONICS/TRACE
ANALYSIS
FUNCTION
VIEW
DATA MODE
SCALE
TRIG MODE
TRIG SOURCE
TRIG PHASE
TRIG DELAY
START
APPLICATIONS SETUP 1
MIL-STD 704
OMNI OPTION
RTCA-DO160D
IEC 1000-4-11
APPLICATIONS SETUP 2 DIPS AND INTER. ABNORMAL
IEC 1000-4-13
WH METER
REGENERATE
SAVE REGISTER #
VIEW/EDIT REG #
RECALL REGISTER #
PREVIOUS SCREEN
UTILITY 1
GPIB/RS232 SETUP
VOLT/CURR CONTROL
PREVIOUS SCREEN
INITIAL SETUP
LIMIT SETUP
MORE
UTILITY 2
CONFIGURATION
LANETWORK SETUP
ELAPSED TIME
VIEWING ANGLE
PREVIOUS SCREEN
RESISTIVE
INDUCTIVE
SET MINIMUM
Series II only
CURR FS
PREVIOUS SCREEN
level 3
NORMAL STATE PREVIOUS SCREEN ABNORMAL
IEC 1000-4-11 TESTS EMERGENCY
IEC 1000-4-13 TESTS VOLT VARIATIONS PREVIOUS SCREEN
STATE PREVIOUS SCREEN Series II SNK only WATT-HOUR METER
RUN REGEN CONTROL START
CLASS STATE ETIME
GROUP
DWELL
LEVEL
FRANGE
STEP
IHFREQ
RESONANT
CONFIG SETUP 1 FREQ HI PHASE
NO. OUTPUT PHASE C MORE
ADVANCE PREVIOUS SCREEN VOLT RANGE
DO160
MIL704
CONFIG SETUP 2
IEC 4-11 MORE
IEC 4-13 VOLT SENSE
CLOCK/LOCK
WH METER
CONFIG SETUP 31
MS704
ABD
LF
SYSTEM
CONFIG SETUP 4 Series II only
MB
MANUAL
OPTn
LAN
CONFIG SETUP 5
SNK
FC
Series I only
VOLT FS
VOLT 0
VOLT FS HT
VOLT FS 0
CURR FS
MODE TRANSIENTS
UNDER VOLT WATT HR
OVER VOLT POWER
dFREQ PK CURR
DELAY
VOLTAGE CUR LIMIT VOLT SENSE RS232 STOPBITS
CUR LIMIT PREV. SCREEN NO. OUTPUT PREVIOUS SCREEN
FREQ LO FREQ PREV. SCREEN
VOLTAGE TRIP DELAY RS232 PARITY
VOLT MODE
OL MODE
OUTPUT RELAY
WAVE GROUP
CLOCK MODE
NO. OUTPUT
VOLT ALC
PREVIOUS SCREEN
STEADY STATE
VOLT ALC RS232 BAUDRATE
OL MODE RS232 DATA
EMERGENCY
ALL MIL704 TESTS
PREVIOUS SCREEN
GPIB ADDRESS
HH:MM:SS
TEMPERATURE
MX Series 90
User Manual – Rev AY AMETEK Programmable Power
CURR 0
CURR FS HT
CURR 0 HT
PREVIOUS SCREEN
Series I only
VOLT FS
V HI-FREQ
VOLT ZERO
PHASE OFST
IMP. REAL FS
IMP. REACT FS
IMP. REAL MIN
IMP. REACT MIN
PREVIOUS SCREEN
OUTPUT CAL
Series II only
VOLT FS
VOLT ZERO
PHASE OFST
IHARM FS
IMP. REAL FS
IMP. REACT FS
IMP. REAL MIN
IMP. REACT MIN
PREVIOUS SCREEN
4.2.4 PROGRAM Menu
Figure 4-8: PROGRAM Menu
The PROGRAM menu is shown in Figure 4-8. It can be reached in one of two ways:
1. by selecting the PROGRAM entry in the MENU screen and pressing the ENTER key
2. by pressing the PROG key in the FUNCTION keypad
The PROGRAM menu is used to change output parameters. The most commonly used
parameters are all located in PROGRAM 1. The PREVIOUS SCREEN entry, when selected, will
return the user to the most recently selected menu. This is normally the MENU screen unless the
PROGRAM menu was selected using the PROG key on the FUNCTION keypad. Less frequently
used parameters are located in PROGRAM 2, which can be reached from the PROGRAM 1
screen using the MORE selection, or by pressing the PROGRAM key twice.
The following choices are available in the PROGRAM menus:
Entry Description
PROGRAM 1
VOLTAGE Programs the output voltage in Vrms while in AC mode or
absolute voltage when in DC mode. In DC mode, negative
values can be entered.
FREQ Programs the output frequency when in AC mode. If the unit is
in DC mode, the value for FREQ will be set to DC and cannot be
changed until AC mode is selected. When in AC mode, the
frequency can be changed from 16 Hz to 500 Hz. Values
entered that fall outside this range will generate a -200 RANGE
ERROR and will not be accepted.
VOLT RANGE Selects 150V, 300V or optional 400V range in AC mode and
200V or 400V range in DC mode. The actual range values may
be different depending on the configuration. The value of this
field can only be changed with the shuttle or the +/- key.
MX Series 91
User Manual – Rev AY AMETEK Programmable Power
CURR LIMIT Sets the current limit value for the current detection system.
When the load current value exceeds the set current limit, a
fault condition is generated. The actual response of the AC
Source to a current limit fault is determined by the protection
mode selected in the CONFIGURATION menu. (CC = Constant
Current, CV = Constant Voltage).
PROGRAM 2
PHASE Selects the phase angle between the external clock and the
output of the AC source. If the clock source is internal, this
parameter has no effect.
CLOCK MODE Selects internal or external clock source. The MX Series
controller uses an open-air crystal time base with an accuracy of
100 ppm. To improve output frequency stability and accuracy,
an external clock generator may be used.
VOLT MODE The MX Series offers three output modes, AC, DC and AC+DC.
The VOLT MODE field can be used to toggle between these
three output modes. Both the Knob and the +/- key may be used
to toggle through these three selections. In DC mode, no
frequency selection is possible and all maximum current and
power ratings are divided by two.
DC OFFSET When the AC+DC mode is selected, the VOLTAGE field in the
PROGRAM 1 screen is used to set the AC portion of the output
voltage. The DC OFFSET field in the PROGRAM 2 screen can
be used to set the DC offset level. Either the knob or the
decimal keypad may be used to set the DC offset level.
START ø Selects the start phase angle for output changes made to either
voltage or frequency. This allows changing the output at a
specific phase angle. The output on key also uses this phase
angle setting to program the output voltage up to the set level
after the output relay is closed. The default value for this field is
RANDOM.
MX Series 92
User Manual – Rev AY AMETEK Programmable Power
4.2.5 MEASUREMENTS Screens
The MX Series uses a DSP based data acquisition system to provide extensive information
regarding the output of the Source. This data acquisition system digitizes the voltage and current
waveforms and calculates several parameters from this digitized data. The result of these
calculations is displayed in a series of measurement data screens. The actual digitized
waveforms can also be displayed by selecting the Harmonics/Trace Analysis screen. A total of
four measurement screens are used to display all this information (3Pi controller only).
Figure 4-9: MEASUREMENTS Screen, Single Phase and Three Phase Modes
The first three Measurement screens available on the MX Series are not menus in that no
changes can be made anywhere. Instead, these three screens provide load parameter readouts.
The fourth measurement screen provides access to the advanced measurements and does offer
several user accessible fields (Pi controller only). The measurement screens can be reached by
successively pressing the MEAS key, which will toggle to all four available screens.
In three-phase mode, measurements are available for each phase individually. To select the
desired phase, use the PHASE key to toggle through phase A, B, C, or ABC. The ABC mode
displays the data for all three phases simultaneously.
The following parameters are available in the first three measurement screens:
Entry Description
MEASUREMENT 1
VOLTAGE When in AC or AC+DC mode, this value is the true rms output
voltage measured at the voltage sense lines. In DC only mode,
the voltage is the DC voltage including polarity.
CURRENT When in AC or AC+DC mode, this value is the true rms output
current drawn by the load. In DC only mode, the current is the
DC current including polarity
FREQ When in AC or AC+DC mode, the output frequency is measured
at the sense lines. When in DC only mode, this value always
reads “DC”.
POWER In both AC and DC mode, this value is the real rms. power
consumed by the load.
MEASUREMENT 2
VA POWER In AC or AC+DC mode, this value is the apparent rms. power
consumed by the load. In DC mode, this value is always the
same as the POWER readout.
MX Series 93
User Manual – Rev AY AMETEK Programmable Power
PEAK CURR This readout reflects the peak current value detected at the
output. To measure inrush current for a unit under test, open the
output relay and reset the peak current value using the PEAK
CURR RESET entry. Then program the output voltage and
frequency and turn on the output relay. The peak current
measurement will continuously track the maximum current value
detected until reset.
POWER FACTOR This readout shows the power factor of the load.
CREST FACTOR This readout displays the ratio between peak current and rms
current.
MEASUREMENT 3 [3Pi controller only]
VOLT THD This readout displays the total voltage distortion for the selected
phase. The distortion calculation is based on the H2 through
H50 with the fundamental voltage (H1) in the denominator. Note
that other common definitions of THD use the RMS value of the
voltage as the denominator. This may result in different readings
between instruments depending on the implementation chosen.
The mode used by the power source is selectable over the bus.
CURR THD This readout displays the total current distortion for the selected
phase. The distortion calculation is based on the H2 through
H50 with the fundamental current (H1) in the denominator. Note
that other common definitions of THD use the RMS value of the
current as the denominator. This may result in different readings
between instruments depending on the implementation chosen.
The mode used by the power source is selectable over the bus.
INST PK CURR This readout reflects the instantaneous peak current value
detected at the output. This value is updated continuously and
does not require a reset operation like the PEAK CURR readout.
The instantaneous peak current does not use a track and hold
mechanism like the PEAK CURR measurement in the
MEASUREMENT 2 screen. Instead, it tracks the peak current
on a cycle-by-cycle basis. The INST PK CURR typically tracks
the rms current and the crest factor.
Update Program Functions from Measurement Screen
The Shuttle can be used to update program parameters such as voltage, frequency or current
from the measurement screen. This can be achieved with the following sequence:
1. Select the program 1 screen using the PROG key.
2. Use the up and down key to select the desired function to update. (Selects parameter that
will be changed by the shuttle once in the MEAS1 screen)
3. Select the measurement 1 screen by pressing the MEAS key.
4. The pointer symbol () points to the programmed parameter (V, F or CL) that will be
affected by turning the shuttle.
MX Series 94
User Manual – Rev AY AMETEK Programmable Power
HARMONICS/TRACE ANALYSIS Screen [3Pi controller only]
The fourth measurement screen is dedicated to the advanced measurements available on the
MX Series with 3Pi controller only. This screen is not available on the P controllers. The
Harmonics/Trace Analysis measurement screen is a true menu screen offering several user
accessible fields. These fields are used to select the desired acquisition trigger and display
mode. The actual data is displayed whenever the ENTER key is pressed while the cursor is on
the VIEW or START field. The following fields are available on this menu:
Figure 4-10: HARMONICS/TRACE ANALYSIS Screen
Entry Description
FUNCTION Selects Voltage, Current or Both parameters for display.
VIEW Available display modes are TABLE, BAR and TRACE.
TABLE mode: Displays the first 50 harmonics in a
tabular text format.
BAR mode: Displays the first 50 harmonics in a
graphical bar chart display.
TRACE mode: Displays the selected Function in a
time domain (waveform) graphical
display.
MX Series 95
User Manual – Rev AY AMETEK Programmable Power
DATA MODE Selects absolute or relative harmonics display for TABLE and
BAR view modes. In relative mode, all harmonics are shown in a
percentage of the fundamental, which is normalized at 100 %. In
absolute mode, the harmonic amplitudes are shown in absolute
volts or amperes.
This mode does not apply to the TRACE view display mode and
is ignored when this mode is selected.
SCALE Sets the horizontal time axis for the TRACE view display mode.
The field range is:
Series I: 4 ms to 104 ms in single-phase mode (MX30-3Pi or
MX45-3Pi only) or 12 ms to 312 ms in three phase mode.
Series II: 4 ms to 42 ms in single-phase mode (MX30-3Pi or
MX45-3Pi only) or 12 ms to 128 ms in three phase mode.
This parameter is ignored when the TABLE or BAR view display
mode is selected.
TRIG MODE This field sets the trigger mode for the acquisition. Available
options are SINGLE (single shot acquisition) or CONT
(continuous acquisition). In SINGLE shot mode, the acquisition
is triggered once each time the START field is selected and the
ENTER key is pressed. The selected trigger source is used to
determine the trigger point. Once the acquisition has been
triggered, the data are displayed and do not change until the
next acquisition is triggered. This mode is most appropriate for
single shot events such as start up currents.
In the CONT mode, acquisitions occur repeatedly and the data
is updated on screen after each trigger occurs. This provides a
continuous update of the data and is most appropriate for
repetitive signals.
TRIG SOURCE The trigger source selects the event that will trigger a
measurement acquisition. Available options for this field are
IMM (immediate), PHASE A or SET VOLT. The IMM trigger
source causes the acquisition to trigger immediately when the
ENTER key is pressed on the START field. Essentially, this is
an asynchronous trigger event. The acquisition will always be
triggered in this mode and data is available immediately.
The PHASE A source will cause the acquisition to trigger on the
occurrence of a set phase angle for the voltage on phase A. The
trigger source is always phase A when in this mode, regardless
of the phase selection shown in the top right corner of the
display. When the acquisition is started, the acquisition system
waits for the specified phase angle to occur before triggering the
acquisition. This mode allows exact positioning of the acquisition
data window with respect to the voltage waveform.
The SET VOLT mode causes the acquisition to trigger at the
specified voltage. This mode also programs the selected phase
or all three phases when the measurement is started from the
START field. As such, this trigger source selection also
programs the output voltage to the selected rms level.
TRIG PHASE / SET VOLT This field changes purpose, depending on the trigger source
selected immediately above it. If the trigger source equals IMM
or PHASE A, this field can be used to program the trigger phase
MX Series 96
User Manual – Rev AY AMETEK Programmable Power
angle (TRIG PHASE). In IMM mode, the value of this field is
ignored.
If the trigger source is set to SET VOLT, this field can be used
to specify the rms voltage to program the output to and trigger
the measurement on. The voltage value set here should not
exceed the maximum voltage range selected or the rms
capability for the wave shape selected on the phase or phases
programmed.
TRIG DELAY The trigger delay field allows the trigger point to be positioned
anywhere in the acquisition window. A negative value will
provide pre-trigger information on data leading up to the trigger
event. The pre-trigger delay cannot exceed the length of the
acquisition buffer. See paragraph 4.6.3.3 for details. A positive
trigger delay positions the data window after the trigger event.
Positive trigger delays can exceed the length of the acquisition
buffer in which case the trigger event itself will not be in the
buffer any more. The maximum value of the trigger delay is
1000 ms. The default trigger delay value is 0.0 ms, which puts
the trigger event at the beginning of the acquisition window.
START The START field is used to start a new acquisition run. To start
an acquisition, place the cursor on the START field and press
the ENTER key. Once the ENTER key is pressed, the display
toggles to the data display mode selected in the VIEW field as
soon as the selected trigger event occurs. To return to the
HARMONICS/TRACE ANALYSIS menu, press the ENTER key
while in the data display mode.
To change display modes without triggering a new acquisition,
make the desired changes in the menu and move the cursor to
the VIEW field. Once on the VIEW field, press the ENTER key.
This will not trigger a new acquisition, which means the original
data is retained.
MX Series 97
User Manual – Rev AY AMETEK Programmable Power
4.2.6 TRANSIENTS Menu
Figure 4-11: TRANSIENTS Menu
The transient menu provides access to the transient list data. Available list length is:
Series I: Both P and Pi controllers; 32 data points. This is represented by 32 transient
step numbers from 0 through 31.
Series II: Both P and Pi controllers; 100 data points. This is represented by 100 transient
step numbers from 0 through 99.
From the Transient menu, the desired transient step type can be selected. Based on the user’s
choice, the relevant transient type sub menu will be shown. The START/EDIT SEQUENCE sub
menu allows the user to review and change any transient step or execute the transient list. When
executing a transient list, transient steps are executed in a ascending numerical order. Steps that
are not defined are skipped.
The following entries can be found in the TRANSIENTS menu:
Entry Description
VOLT SURGE/SAG Voltage surges and sags are temporary changes in amplitude.
The output voltage will change from its present value to a user
specified value for a specified duration. (Sag if the value is
lower, surge if the value is higher.) After this period has expired,
the output voltage returns to a user specified end value. This
value may or may not be the same as the value present prior to
the start of the sag or surge.
VOLT SWEEP/STEP Voltage sweeps cause the output voltage to change from the
present value to a user specified end value at a specified rate of
change. A voltage step on the other hand is an instantaneous
change in output voltage. The new value will be held for the
duration period specified by the user. The final output voltage
value of a sweep and a step transient step should be different
than the value at the start of the transient step or no change in
output value will occur.
FREQ SWEEP/STEP This transient type is similar to a voltage sweep/step except it
affects the frequency. Refer to the previous paragraph.
VOLT/FREQ SWEEP/STEP This transient type combines the previous two types into a single
step. The effect is that of changing the output voltage and
frequency simultaneously.
Note: While this transient is programmed as a single transient
step, two list entries are required to store this information. As
such, every VOLT/FREQ SWEEP/STEP used will consume two
list entries at a time.
MX Series 98
User Manual – Rev AY AMETEK Programmable Power
START/VIEW SEQUENCE This entry allows the user to switch to the transient execution
menu. This menu provides a list of all available transient list
steps and their sequence numbers. From this menu, transient
list execution can be started.
The same menu can be used to view or edit any available
transient list step or erase a step using the backspace key.
4.2.6.1 VOLT SURGE/SAG sub menu
Figure 4-12: VOLTAGE SURGE/SAG SETUP Screen
The Voltage surge and sag screen shown in Figure 4-12 can be reached from the transient
screen as follows:
1. Scroll to the VOLT SURGE/SAG entry using the up and down cursor keys.
2. Press the ENTER key to bring up the VOLT SURGE/SAG screen.
The VOLT SURGE/SAG screen has several data fields. All data fields that are blank to the right
of the equal sign must be filled or an error message will occur when trying to leave this screen.
The EVENT # is the last data field to be filled. Entering the event data field will cause the display
to return to the TRANSIENT screen where a new selection can be made.
The VOLT/SURGE/SAG screen has the following fields:
START ø This field will show the start phase angle of the voltage transient
in degrees. Only one start phase angle per transient sequence
is allowed. The start phase angle must be in the first transient
event in the list. The start phase angle is not valid for DC
transients. If no start phase angle is required, this field can be
set to RANDOM by pressing the BACKSPACE (<-) key on the
decimal keypad.
GO TO VOLT This field will set the voltage level during the transient duration in
volts
DUR SCALE Duration scale default is time in seconds. Use the Shuttle knob
to select CYCLES if desired. Note that durations expressed in
cycles may cause rounding errors if the period of the selected
frequency setting is not an integer number of mss. Thus, for 50
Hz applications, no rounding errors occur but for 60 Hz, the
16.66¯ ms period will cause a rounding error when converted.
The Duration scale selection affects both the DURATION and
END DELAY parameters.
DURATION Duration is the time the output voltage level will dwell at the GO
TO VOLT level. The DUR SCALE defines the time scale of this
parameter in CYCLES or SECONDS
END VOLT This is the output voltage level at the end of the transient
EVENT and after a time specified by the DURATION
MX Series 99
User Manual – Rev AY AMETEK Programmable Power
END DELAY This is the time delay the voltage level will stay at the END
VOLT level before it proceeds with the next transient event or
completes the transient.
FUNCTION [3Pi controller only] This field can be used to select the wave
shape to be used during this step of the transient sequence.
Each step can use a different wave shape from the available
library of 50 user-defined waveforms or the three standard
waveforms. The output wave shape changes upon entry into
each step and remains in effect for the duration of the step. The
default wave shape is always the SINE (sine wave).
REPEAT This is the number of times the SURGE/SAG transient event will
repeat before it will proceed to the next event or exit the
transient program. Note that the number of times the transient
event is generated is equal to the REPEAT + 1. Leave this value
at zero if only one execution of this event in the list is required.
EVENT # This must be the last item in the transient edit screen. All data
fields must be entered before inserting the EVENT #. The
EVENT # takes a value from 1 to 99. The EVENT # defines the
order of execution of the transient events in a multiple event
transient. It is a good practice to enter spaced EVENT #’s to
allow insertion of an EVENT later if needed. (For example,
space them by 5.) Entry of a sequence EVENT # number will
cause the display to return to the TRANSIENT screen.
MX Series 100
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