Ametek TW Series Manuale del proprietario
Contact Information
Telephone: 800 733 5427 (toll free in North America)
858 450 0085 (direct)
Fax: 858 458 0267
Email:
Domestic Sales: domorders.sd@ametek.com
Web: www.programmablepower.com
TrueWave
AC Power Source
TW SERIES
SCPI Programming Manual
March 2011 Document No. M161469-02 Rev D
Via Acquanera, 29 22100 Como
tel. 031.526.566 (r.a.) fax 031.507.984
info@calpower.it www.calpower.it
Elgar TrueWave i
TABLE OF CONTENTS
SECTION 1 SCPI CONFORMANCE INFORMATION
1.1 Parameter Definitions.......................................................................................1-1
1.2 Units .................................................................................................................1-1
1.3 Conventions......................................................................................................1-1
1.4 Queries.............................................................................................................1-1
SECTION 2 POWER-ON AND RESET CONDITIONS
2.1 Factory Defaults ...............................................................................................2-1
2.2 Power-On Conditions .......................................................................................2-1
2.3 Reset Conditions..............................................................................................2-2
SECTION 3 SCPI COMMANDS
3.1 Measure Commands.........................................................................................3-1
3.2 Miscellaneous Commands................................................................................3-2
3.3 Source Commands...........................................................................................3-2
3.4 Status Commands ............................................................................................3-7
3.5 System Commands...........................................................................................3-8
3.6 Common Commands......................................................................................3-11
APPENDIX A STATUS REGISTER DEFINITIONS
A.1 Status Byte...................................................................................................... A-1
A.2 Standard Event Status Register...................................................................... A-2
A.3 Operation Status/Questionable Status Registers........................................... A-3
A.4 Error/Event Queue ......................................................................................... A-3
A.5 Serial Poll Operation ....................................................................................... A-3
APPENDIX B ERROR CODES
B.1 Error Codes Returned by SYSTem:ERRor? Query......................................... B-1
B.2 SCPI Error Codes............................................................................................ B-1
B.3 Device–Specific Error Codes........................................................................... B-2
SCPI Programming
Elgar TrueWave
ii
APPENDIX C SAMPLE PROGRAMS
C.1 Introduction......................................................................................................C-1
C.2 Source AC from Power Up...............................................................................C-1
C.2 Source DC from Power Up...............................................................................C-1
C.3 Source ACDC from Power Up..........................................................................C-1
C.4 Perform AC Disturbance ..................................................................................C-1
C.5 Perform AC Disturbance with Ext Trigger ........................................................C-2
C.6 Turn Off Front Panel Programmability .............................................................C-2
C.7 Password Operations.......................................................................................C-2
C.8 Provide Zero Crossing Pulses from Phase A...................................................C-2
C.9 Master/Slave Operation ...................................................................................C-2
Elgar TrueWave 1-1
SECTION 1SCPI CONFORMANCE INFORMATION
The Elgar TW Series conforms to all specifications for devices as defined in IEEE
488.2, and complies with SCPI command syntax version 1995.0.
1.1 PARAMETER DEFINITIONS
Type Valid arguments
<boolean> ON, OFF, 0, or 1
<value> Integer or Floating point number
<name> String enclosed by single or double quotes
1.2 UNITS
The TW Series accepts the following units as suffixes to numeric values:
Type of Unit Valid suffix
Voltage “Volts” or “V”
Current “Amps” or “A”
Frequency “Hz”
Time “ms” (milliseconds), “s” (seconds), or
“min” (minutes).
1.3 CONVENTIONS
Commands enclosed by “[ ]” are optional.
For example, SOURce:VOLTage:LEVel:IMMediate:AMPLitude 120.0
can be written as, SOURce:VOLTage 120.0.
1.4 QUERIES
The query syntax is identical to the command syntax, with a ”?” appended.
For example, to query the programmed voltage on phase A, send the string:
SOURce:VOLTage?. A subsequent device read will return a value such as “120.00".
All queries are terminated with a carriage return and line feed (0x0D 0x0A) for those
GPIB controllers that require termination characters. When the TW Series has nothing
to report, its output buffer will contain three ASCII characters: space, carriage return,
and linefeed (in decimal these values are <32><13><10>).
SCPI Programming
1-2Elgar TrueWave
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Elgar TrueWave 2-1
SECTION 2POWER-ON AND RESET CONDITIONS
The following sections define the factory and reset power-on conditions of the unit.
2.1 FACTORY DEFAULTS
When the TW is first powered up, the following factory defaults will be in place:
•GPIB Address: 25
•RS-232 Baud Rate: 9600
•RS-232 Data Bits: 8
•RS-232 Stop Bits: 1
•RS-232 Parity: N
•Number of phases
(amplifiers in
chassis):
TW1750 – 1
TW3500 – 2
TW3700 – 2
TW5250 – 3
2.2 POWER-ON CONDITIONS
When the TW is first powered up, the system reads in the configuration that was last
saved to memory position 0. The specific system items are:
•VoltsA, VoltsB, VoltsC
•Voltage Range, either High or Low
•OffsetVoltsA, OffsetVoltsB, OffsetVoltsC (for DC and AC-DC)
•Current Protection Type, either Fold or Shut
•Current Shutdown Time
•Current LimitA, Current LimitB, Current LimitC
•Frequency
•Phase AngleAB
•Phase AngleAC
•External Input Assignment, either Ext Gain Control or Off
•External Trigger Assignment, either Trig In, Trig Out, Phase A In, or Phase A Out
•Coupling State, either AC, DC, or AC-DC
•Parallel State, all amps in parallel, or not
•Sense State, either Local or Remote
•Output Impedance Setting, (IEC) either On or Off.
SCPI Programming
2-2Elgar TrueWave
In addition, unique system settings are read in from the non-volatile EEROM memory:
•Output Relay State, either Auto Start or Standby
•Keyboard Lock State, either Front Panel Program Enabled or Disabled
•Passcode Protection State, and the Passcode (if enabled)
•Quantity of Installed Amplifiers
•Quantity of Chassis Installed
2.3 RESET CONDITIONS
When the *RST command is sent via SCPI, the following conditions apply:
•Faults are cleared
•The error queue is cleared
•The output relay is opened
•VoltsA, VoltsB, VoltsC are set to 0
•OffsetVoltsA, OffsetVoltsB, OffsetVoltsC (for DC and AC-DC) are set to 0
•TW is moved to Low Range (0–156V, 5 Amps current limit)
•External Input Assignment is turned Off
•A locked keyboard remains locked.
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