APT 320XAC User manual

300XAC Series
Modular AC Power Source
Operation Manual for Models
310XAC
320XAC
340XAC
360XAC
Ver. 1.24
PART # 39101

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DECLARATION OF CONFORMITY
Manufacturer: Associated Power Technologies, Inc.
Address: 28105 N. Keith Drive
Lake Forest, IL 60045 USA
Product Name: 300XAC Power Source
Model Number: 310XAC, 320XAC
Conforms to the following Standards:
Safety: EN 61010-1:2010
EMC: EN 61326-1:2013 Class A
EN 55011 :2009+A2 :2010 Group 1 ClassA
EN 61000-3-2 : 2006+A1 :2009+A2 :2009/
IEC 61000-3-2 :2005+A1 :2008+A2 :2009
EN 61000-3-3 :2013/IEC 61000-3-3 :2013
EN 61326-1 :2013(Industrial Locations)
EN 61000-4-2 :2009/IEC 61000-4-2 :2008
EN 61000-4-3 :2006+A1 :2008+A2 :2010/
IEC 61000-4-3 :2006+A1 :2007+A2 :2010
EN 61000-4-4 :2012/ IEC 61000-4-4 :2012
EN 61000-4-5 :2006/ IEC 61000-4-5 :2005
EN 61000-4-5 :2006/ IEC 61000-4-5 :2005
EN 61000-4-6 :2014/ IEC 61000-4-6 :2013
EN 61000-4-8 :2010/ IEC 61000-4-8 :2009
EN 61000-4-11 :2004/ IEC 61000-4-11 :2004
Supplementary Information
The product herewith complies with the requirements of the Low Voltage Directive 2014/35/EU, the EMC Directive
2014/30/EU and the RoHS Directive 2011/65/EU with respect to the following substances: Lead (Pb), Mercury (Hg),
Cadmium (Cd), Hexavalent chromium (Cr (VI)), Polybrominated biphenyls (PBB), Polybrominated diphenyl ethers
(PBDE), Deca-BDE included.
Last two digits of the year in which the CE marking was affixed: 10
The technical file and other documentation are on file with Associated Research, Inc.
______________________________
Joseph Guerriero
President
Associated Power Technologies, Inc.
Lake Forest, Illinois USA
July 20, 2017
Table of Contents
1. Introduction....................................................................................................1
1.1 Warranty.................................................................................................1
1.2 Glossary of Terms...................................................................................2
1.3. Safety Symbols ..........................................................................................5

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1.4 Safety Precautions .................................................................................5
1.5 Service and Maintenance.......................................................................5
2. Getting Started...............................................................................................7
2.1 Unpacking and Inspection ......................................................................7
2.2 Input/Output Power Considerations........................................................7
2.3 Output Current Capability.......................................................................9
2.4 Instrument Power Switch......................................................................11
2.5 Selecting the Appropriate Wire Gauge..................................................13
2.6 Power Cable.........................................................................................13
2.7 Supplied Input Accessories (360XAC Only)..........................................15
2.8 Environmental Conditions.....................................................................15
2.9 Packaging.............................................................................................15
3. Specifications and Controls .........................................................................17
3.1 Specifications .......................................................................................17
3.2 Instrument Controls ..............................................................................29
3.2.1 Front Panel Controls......................................................................29
3.2.2 Rear Panel Controls......................................................................31
3.2.3 Soft Keys.......................................................................................34
4. Programming Instructions............................................................................36
4.1 Powering on the Instrument..................................................................36
4.1.1 Set Screen Description..................................................................37
4.1.2 Security .........................................................................................38
4.1.3 Lock...............................................................................................39
4.1.4 Mem Lock......................................................................................39
4.2 System Parameters Description...........................................................40
4.3 Editing System Parameters..................................................................43
4.3.1 Editing Auto Run Mode..................................................................44
4.3.2 Editing Out Mode...........................................................................45
4.3.3 Editing Single Step (PROGRAM Mode only).................................45
4.3.4 Editing Alarm .................................................................................46
4.3.5 Editing Contrast.............................................................................46
4.3.6 Editing Power Up...........................................................................47
4.3.7 Editing Loop Cycle (PROGRAM Mode only) .................................48
4.3.8 Editing V Hi-Lmt & V Lo-Lmt (MANUAL Mode only)......................48
4.3.9 Editing F Hi-Lmt & F Lo-Lmt (MANUAL Mode only) ......................49
4.3.10 Editing Start and EndAngle (MANUAL Mode only).......................50
4.3.11 Editing Results ..............................................................................51
4.3.12 Editing Transient (MANUAL Mode only)........................................52
4.3.13 Editing OC Fold.............................................................................53
4.3.14 Editing Lock...................................................................................53
4.3.15 Editing Mem Lock..........................................................................54
4.3.16 Editing Volt Sense .........................................................................55
4.3.17 Editing Sync Signal........................................................................55
4.3.18 Editing Function (Option 08 only) ..................................................56
4.4 Using Memories and Steps (PROGRAM Mode only) ...........................57
4.4.1 Selecting a Memory.......................................................................57

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4.4.2 Naming a Memory.........................................................................59
4.4.3 Selecting a Step ............................................................................60
4.5 Test Parameters Description.................................................................60
4.6 Editing Test Parameters........................................................................65
4.6.1 Editing Start and EndAngle (PROGRAM Mode only) ...................66
4.6.2 Editing the Memory Cycle (PROGRAM Mode only) ......................68
4.6.3 Editing the Memory (PROGRAM Mode only) ................................69
4.6.4 Editing the Step (PROGRAM Mode only)......................................69
4.6.5 Editing Voltage ..............................................................................70
4.6.6 Editing Frequency..........................................................................71
4.6.7 Editing Transient * (PROGRAM Mode only)..................................71
4.6.8 Editing Trans-Volt* (PROGRAM Mode only)..................................72
4.6.9 Editing Trans-Site* (PROGRAM Mode only) .................................73
4.6.10 Editing Trans-Time* (PROGRAM Mode only)................................74
4.6.11 Editing Trans-Cycle* (PROGRAM Mode only)...............................74
4.6.12 Editing Ramp Up (PROGRAM Mode only)....................................76
4.6.13 Editing Timer Unit (PROGRAM Mode only)...................................77
4.6.14 Editing Delay (PROGRAM Mode only)..........................................77
4.6.15 Editing Dwell (PROGRAM Mode only) ..........................................78
4.6.16 Editing Ramp Down (PROGRAM Mode only) ...............................79
4.6.17 Editing Step Cycle (PROGRAM Mode only)..................................79
4.6.18 Editing A Hi-Lmt & A Lo-Lmt (PROGRAM Mode only)...................80
4.6.19 Editing P Hi-Lmt & P Lo-Lmt (PROGRAM Mode only) ..................81
4.6.20 Editing Ap Hi-Lmt & Ap Lo-Lmt (PROGRAM Mode only)...............82
4.6.21 Editing CF Hi-Lmt & CF Lo-Lmt (PROGRAM Mode only)..............83
4.6.22 Editing PF Hi-Lmt & PF Lo-Lmt (PROGRAM Mode only)..............84
4.6.23 Editing VA Hi-Lmt & VALo-Lmt (PROGRAM Mode only) ..............85
4.6.24 Editing Q Hi-Lmt & Q Lo-Lmt (PROGRAM Mode only)..................87
4.6.25 Editing Prompt...............................................................................88
4.6.26 Editing Connect.............................................................................89
4.6.27 Editing Phase Set (Option 08 –PROGRAM Mode only)...............89
4.7 Reviewing Test Results.........................................................................90
5. Test Modes ..................................................................................................92
5.1 Description of Test Modes ....................................................................92
5.2 Initializing a Test in PROGRAM Mode..................................................92
5.2.1 AC Output......................................................................................92
5.2.2 DC Output .....................................................................................94
5.3 Initializing a Test in MANUAL Mode......................................................96
5.3.1 AC Output......................................................................................96
5.3.2 DC Output .....................................................................................97
6. Multiple Instrument Operation......................................................................99
6.1 Configuring Sources for Parallel and Polyphase Operation..................99
6.1.1 Operating Mode Definitions...........................................................99
6.1.2 Connecting the Interface Cable.....................................................99
6.1.3 Output Wiring Diagrams..............................................................100
6.2 Power Up Considerations in Parallel and Polyphase Mode................103

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6.3 Initializing a Test in Parallel or Polyphase Mode.................................104
6.4 Error Messages in Parallel and Polyphase Mode...............................105
7. Displayed Messages..................................................................................106
7.1 OTP –Over Temperature Protection ..................................................106
7.2 OCP –Over Current Protection..........................................................106
7.3 OPP –Over Power Protection............................................................106
7.4 OVP –Output Voltage Protection .......................................................107
7.5 A-SH –Amplifier Shutdown Protection ...............................................107
7.6 RCP –Reverse Current Protection.....................................................107
7.7 LVP- Low Voltage Protection ..............................................................107
8. Remote PLC..............................................................................................108
8.1 Signal Output......................................................................................108
8.2 Signal Input - 7 Memory Recall (Opt. 04)............................................108
9. Bus Remote Interface USB/GPIB/RS-232.................................................110
9.1 USB/RS-232 Interface........................................................................110
9.1.1 RS-232 Connector....................................................................... 111
9.1.2 Communication Port Configuration.............................................. 111
9.1.3 Sending and Receiving Commands ............................................ 111
9.2 GPIB Interface....................................................................................112
9.2.1 GPIB Connector ..........................................................................112
9.2.2 GPIB Address..............................................................................112
9.3 Interface Functions.............................................................................112
9.4 USB/GPIB/RS-232 Interface Command List.......................................113
9.4.1 Basic Commands and Query Commands ...................................114
9.4.2 3Φ4W Queries.............................................................................117
9.4.3 1Φ3W Queries.............................................................................118
9.4.4 Program Commands and Companion Queries............................118
9.4.5 System Commands and Companion Queries .............................122
9.4.6 IEEE 488.2 Common Commands................................................123
10. Calibration Procedure ............................................................................128
10.1 Hardware Verification and Calibration Procedure...............................128
10.2 Activate Non-Calibration Mode...........................................................128
10.3 Adjust Control Circuit Power Voltage..................................................128
10.4 Adjust the Amplifier Inverter DC Bus Voltage......................................129
10.5 Clear the Output High Frequency Noise.............................................129
10.6 Adjust the “0” Volts and “110” Volts DC Offset ....................................129
10.7 Adjust Wattmeter Offset......................................................................130
10.8 Adjust Hardware OCP Set Point.........................................................131
10.9 Exit Non-Calibration Mode..................................................................131
10.10 Software Calibration Procedure ......................................................131
10.11 Enter Calibration Mode ...................................................................133
10.12 Calibration of Voltage 150.0V..........................................................133
10.13 Calibration of Voltage 300.0V..........................................................134
10.14 Calibration of High and Low Current Range....................................135
10.15 Calibration of High and Low Power Range .....................................135
10.16 Calibration of Peak Current.............................................................136

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11. Options...................................................................................................138
11.1 Opt. 02 –Grounded Neutral ...............................................................138
11.2 Opt. 03 –GPIB Card ..........................................................................138
11.3 Opt. 04 –7 Remote Memories Select.................................................138
11.4 Opt. 06 –Ethernet Card......................................................................138
11.4.1 Ethernet Card Setup....................................................................139
11.4.2 Saving New Settings ...................................................................141
11.4.3 Power Up.....................................................................................141
11.4.4 Ethernet Card Menu....................................................................143
11.4.5 IP Setup.......................................................................................143
11.4.6 IPAddress...................................................................................144
11.4.7 Gateway IP..................................................................................144
11.4.8 Subnet Mask ...............................................................................144
11.4.9 Device Name...............................................................................145
11.4.10 MAC Address...........................................................................146
11.4.11 Barcode Input ..........................................................................146
11.4.12 Autostart ..................................................................................148
11.4.13 Ethernet Card Settings Commands and Companion Queries..149
11.4.14 Ethernet Card Settings Command Wait Times.........................151
11.5 Opt. 08 –Linking Card........................................................................151
12. Service and Maintenance.......................................................................152
13. Replacement Parts List..........................................................................153

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1. Introduction
1.1 Warranty
Associated Power Technologies, Inc. (APT), certifies that the instrument listed in
this manual meets or exceeds published manufacturing specifications. This
instrument was calibrated using standards that are traceable to the National
Institute of Standards of Technology.
Your new instrument is warranted to be free from defects in workmanship and
material for a period of (3) years from date of shipment. During the warranty
period, you must return the instrument to Associated Power Technologies, Inc. or
its branches for repair. Associated Power Technologies reserves the right to use
its discretion on replacing the faulty parts or replacing the assembly or the whole
unit.
APT will void your warranty under the following states:
Operation of the instrumentation under non-normal conditions
Any non-authorized modifications, tampering or physical damage
Elimination of any connections in the earth grounding system or bypassing
any safety systems
Use of non-authorized parts in the repair of this instrument. Parts used
must be parts that are recommended byAPT as an acceptable specified
part.
This warranty does not cover accessories not of Associated Power
Technologies, Inc. manufacture.
Except as provided herein, APT, makes no warranties to the purchaser of this
instrument and all other warranties, expressed or implied (including, without
limitation, merchantability or fitness for a particular purpose) are hereby excluded,
disclaimed and waived.
APT recommends that your instrument be calibrated on a twelve month cycle.
Instruments returned to APT annually for calibration fall under our extended
warranty which can be extended up to five years. Each year the instrument is
returned to APT in consecutive years the warranty is extended one additional
year. This process can be repeated up to four years for a 5-Year Warranty.
Instruments returned for warranty repair within the first six months of the warranty
period, will have the warranty extended for one year from the date of repair at no
charge. Instruments received after the first six months can have the warranty
extended for 3 months after its original expiration date at no charge or the

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warranty can be extended for a full year at the cost of an annual calibration.
1.2 Glossary of Terms
Alternating Current (AC) - current that reverses direction on a regular basis
(usually 60 times per second in the United States). Measured in amps.
AC Power Source - An instrument that takes one AC voltage and frequency
level and converts it into another AC voltage and frequency level.
Amplifier - a circuit that boosts an input signal from one level to another.
Apparent Power - The total power generated or consumed by a device due to
real and reactive circuit components. Measured in VA (volt-amps).
Calibration - the process of comparing an unknown value with a reference
standard and reporting the results. For example: Applied = 1.30V, Indicated =
1.26V (or Error= -0.04V). Calibration may include adjustment to correct any
deviation from the value of the standard.
Crest Factor - The ratio of peak current (Apeak) to RMS current (Arms).
Complex Power –the vector sum of the real and reactive power components of
a circuit. Measured in VA (volt-amps).
Direct Current (DC) - current that only flows in one direction. Direct current
comes from a polarized source, meaning one terminal is always at a higher
potential than the other. Measured in amps.
Frequency - The number of times a waveform completes a cycle in a period of
time. Measured in hertz.
Inrush Current - A term used to describe the current needed to power a load
upon start-up. Some loads require a large/inrush starting current in order to
operate.
Linear Power Source - a power source that uses a simple amplifier to linearly
increase the amplitude of the output waveform.
Modular - capability that allows the operator to interconnect multiple 300XAC
power sources in order to increase the power output or power configuration
beyond that of a single instrument.

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OC Fold - Over current fold back is a technology used in power sources that
keeps output current constant by reducing the voltage in order to power loads
that may have a high inrush current.
Parallel Mode - up to 3x 300XAC modular AC power sources can be configured
with their outputs tied in parallel, allowing for the system to output three times a
single instrument's nominal output current rating.
PFC - Power Factor Correction is a method by which an inductance is inserted
into the input circuit of a power source to improve the power factor and overall
efficiency of the system.
Phase Angle - the degree of measurement that corresponds to an AC
waveform’s amplitude. Measured from 0 – 360 degrees.
PLC - Programmable Logic Control is an automation method using relay or
digital technology.
Polyphase Mode - multiple 300XAC modularAC power sources can be
configured to provide output voltages of up to 600VAC (output configured for
1Φ3W) or provide 3Φ output power (output configured for 3Φ4W).
Power - A generic term used to describe electrical work being done. There are
many types of power, including real power, reactive power, apparent power, and
complex power.
Power factor - The ratio of real power (watts) to apparent power (VA). Based on
a scale from 0 to 1 to determine how reactive and resistive a load is.
Reactive Power –the power absorbed by capacitive or inductive elements in a
circuit. This power does no work. Measured in VAR (volt-amps reactive).
Real Power –the power that performs work in a circuit. Measured in watts.
Response Time - The time that is needed to regulate the voltage, current,
frequency, and power output when a load is added to the power source.
Safety Agency Listing - A safety mark given to a product that has met stringent
benchmarks as classified by the authorized agency.
SmartConfig - this feature allows the operator to change the output of AC power
sources in a linked system from Parallel to Polyphase modes with a simple
button push. Changing internal cables or dip switches is not required.

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SmartDetect - this feature automatically assigns the appropriate master/slave
designation for each AC power source in a linked system without the need for the
operator to reconfigure internal hardware.
Steady State Current - A term used to describe the current when the load is
running nominally after the inrush current.
Switching Power Source - A power source that uses switching technology
(integrated circuits and components) in order to generate the output waveform.
Total Harmonic Distortion (THD) - A percentage that is used to identify the
degree of the noise/unclean signal in a power source’s output waveform.
Transient - a momentary change (spike or dip) in a voltage or current waveform
that can affect the performance of the DUT.
Verification - comparison of measured results against a specification, usually the
manufacturer's published performance figures for the product (e.g. Error = -0.04V,
Spec = ±0.03V, result: "FAIL").
Voltage - The amount of force that is needed to move current from point to point.
Measured in volts.