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Keithley
Power Supply
2280 Series
Keithley 2280 Series Reference Manual
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Keithley Instruments
Corporate Headquarters • 28775
Aurora Road • Cleveland, Ohio 44139 • 440-248-0400 • Fax: 440-248-6168 • 1-800-935-5595 • tek.com/keithley
12/17
456
Table of Contents
Default Chapter
6
Table of Contents
6
Introduction
15
Welcome
15
Extended Warranty
15
Contact Information
15
Product Documentation and Drivers
16
Organization of Manual Sections
16
Key Features
17
Standard Accessories
18
Optional Accessories
18
Available Services
19
General Ratings
19
General Operation
20
Front-Panel Overview
20
Rear-Panel Overview
22
Front-Panel Overview
22
Front-Panel User Interface
23
Home Screen
23
Menu Overview
33
Adjusting the Backlight Brightness and Timer
46
Installing the System
47
Bumpers
47
Dimensions
48
Power the Instrument on and off
53
Test Connections
56
Front-Panel Connector
57
Rear-Panel Output Mating Connector
58
Two-Wire Local Sense Connection
58
Four-Wire Sense Connection
59
Open Leads Detection
61
Reversed Sense Leads
62
Remote Communications Interfaces
63
Supported Remote Interfaces
64
GPIB Communications
64
LAN Communications
67
USB Communications
83
How to Install the Keithley I/O Layer
89
Set Voltage and Current Limit
90
Constant Voltage (CV) and Constant Current (CC) Mode
91
Select a Measurement Function
93
Select a Specific Measurement Range
94
Selecting a Specific Measurement Range
94
Using Autoranging for Current Measurements
96
Protection
97
Overvoltage Protection
97
Overcurrent Protection
98
Overtemperature Protection
99
Overprotection Error
100
Maximum Voltage Limits
101
Saving Setups
102
Save a User Setup
102
Recall a User Setup
103
Specify a Default Setup
104
Using the Event Log
104
Information Provided for each Event Log Entry
104
Save the Event Log to an External Flash Drive
105
Clear the Event Log
105
System Information
105
Instrument Sounds
106
Resets
106
Reset the Instrument
107
Reset Default Values
107
Functions and Features
115
Changing the Instrument Access Mode
115
Changing the Password
116
Graph
116
Changing the Window Position and Zoom
117
Adjusting the Scale and Offset of the Y-Axis
118
Output Delay, Slew Rate, and Source Delay
119
Output Delay
120
Slew Rate
120
Source Delay
121
Data Buffer
122
Effects of Reset and Power Cycle on Buffer
122
Buffer Fill Status
123
Setting Reading Buffer Size and Buffer Mode
123
Viewing and Saving Buffer Content
126
Clearing the Buffer
132
Digital I/O
133
Digital I/O Port
133
Configuring Digital I/O Lines
137
Trigger Model
139
Idle and Initiate
140
Arm Layer
140
Trigger Layer
140
Source, Source Delay, and Measure Actions
141
Counter
141
Meter Complete
141
Running the Trigger Model
142
Level Trigger
144
Configuring a Voltage Level Trigger
144
Configuring a Current Level Trigger
146
List Operation
148
Configuring a List
149
Importing a List from an External USB Flash Drive
151
Exporting a List to an External USB Flash Drive
152
Configuring and Running a List
152
Aborting a List
163
Sink Operation
164
Measurement Optimization
165
Introduction
165
Optimizing Either Measurement Accuracy or Speed
165
Resolution
166
Nplc
167
Autozero Measurements
169
Displayed Digits
170
Filtering Measurement Data
171
Math Calculations that You Can Apply to Measurements
175
MX+B
175
Setting MX+B Math Operations
176
Relative Offset
177
Establishing a Relative Offset Value
177
Displayed Measurements
179
Select the Source of Readings
181
Application Examples
182
Simple Voltage Output and Current Measurement
182
Equipment Required
182
Set up Remote Communications
182
Device Connections
183
Set the Voltage and Current Limit
183
Configure and Execute a 10-Step Linear List Sweep
185
Equipment Required
185
Set up Remote Communications
185
Device Connections
185
Configure a 10-Step Linear List Sweep
186
Execute a 10-Step Linear List Sweep
187
Perform a Fast Current Load Measurement
188
Equipment Required
188
Set up Remote Communications
188
Device Connections
189
Measure the Fast Current Load Changes
191
Introduction to SCPI Commands
194
Introduction to SCPI
194
Command Messages
194
Command Execution Rules
195
SCPI Command Programming Notes
195
SCPI Command Formatting
195
Using the SCPI Command Reference
198
SCPI Command Reference
202
Common Commands
202
Cls
203
Ese
204
Esr
205
Idn
205
Opc
206
Lang
207
Rcl
207
Rst
208
Sav
208
Sre
209
Stb
209
Trg
210
Tst
211
Wai
211
Abort[N]
212
Configure[N]:<Function
213
Fetch[N]
214
Format:elements
215
Force:trigger
216
Measure[N]:<Function
217
Read[N]
219
ARM Subsystem
220
Arm[:Sequence[N]]:Count
220
Arm[:Sequence[N]]:Source
221
Calculate Subsystem
222
Calculate[1]:<Function>:Format
222
Calculate[1]:<Function>:Kmath:mbfactor
223
Calculate[1]:<Function>:Kmath:mmfactor
224
Calculate[1]:<Function>:Kmath:munits
226
Calculate[1]:<Function>:State
226
Calculate2:Data
228
Calculate2:Format
229
Calculate2:Format:elements
231
Calculate2:Function
232
Calculate2:Immediate
233
Calculate2:State
235
Calibration Subsystem
236
Calibration:protected:cancel
236
Calibration:protected:code
237
Calibration:protected:count
237
Calibration:protected:data
238
Calibration:protected:date
239
Calibration:protected[:DC[N]]:Step<Step
240
Calibration:protected[:DC[N]]:Step<Step>:Data
242
Calibration:protected:save
244
Calibration:protected:state
245
Digital Subsystem
246
Digital:line<N>:Function
246
Digital:line<N>:Manual:input:data
247
Display Subsystem
248
Display:brightness
248
Display:clear
249
Display:screen
250
Display:user:text[:Data]
251
Initiate Subsystem
252
Initiate[N]:Continuous
252
Initiate[N][:Immediate]
253
Mmemory Subsystem
253
Mmemory:load:setup
253
Mmemory:save:setup
254
Output Subsystem
255
Output:delay:falling
255
Output:delay:rising
256
Output:delay:state
257
Output:protection:clear
258
Output:protection:tripped?[<Channel>]
259
Output[:State]
260
Sense Subsystem
261
Sense[N]:Function
261
Sense[N]:<Function>:Average:count
262
Sense[N]:<Function>:Average[:State]
263
Sense[N]:<Function>:Average:tcontrol
264
Sense[N]:<Function>:Average:window
265
Sense[N]:<Function>:Digits
266
Sense[N]:<Function>:Nplcycles
267
Sense[N]:<Function>:Range
268
Sense[N]:<Function>:Range:auto
270
Sense[N]:<Function>:Reference
271
Sense[N]:<Function>:Reference:acquire
272
Sense[N]:<Function>:Reference:state
273
Sense[N]:<Function>:Resolution
274
Source Subsystem
275
[:Source[N]]:Delay
275
[:Source[N]]:Delay:state
276
[:Source[N]]:<Function>:Protection[:Level]
277
[:Source[N]]:<Function>[:Level][:Immediate][:Amplitude]
278
[:Source[N]]:Voltage:limit[:Amplitude]
279
[:Source[N]]:Voltage:slew:rising
280
[:Source[N]]:Voltage:slew:falling
281
[:Source[N]]:List<Listnumber>:<Element
282
[:Source[N]]:List<Listnumber>:<Element>:Append
283
[:Source[N]]:List<Listnumber>:<Element>:Points
284
[:Source[N]]:List:end:zero
285
[:Source[N]]:List:htime
285
[:Source[N]]:List:load:usb
286
[:Source[N]]:List:mcomplete
287
[:Source[N]]:List:rcl
288
[:Source[N]]:List:save:internal
291
[:Source[N]]:List:save:usb
291
[:Source[N]]:List:state
292
Status Subsystem
296
Status:measurement[:Event]
296
Status:measurement:enable
296
Status:measurement:instrument[:Event]
297
Status:measurement:instrument:enable
298
Status:measurement:instrument:isummary[:Event]
299
Status:measurement:instrument:isummary:enable
300
Status:measurement:instrument:isummary:condition
301
Status:operation[:Event]
301
Status:operation:enable
302
Status:operation:instrument[:Event]
302
Status:operation:instrument:enable
303
Status:operation:instrument:isummary[:Event]
304
Status:operation:instrument:isummary:enable
305
Status:operation:instrument:isummary:condition
306
Status:preset
306
Status:questionable[:Event]
307
Status:questionable:enable
308
Status:questionable:instrument[:Event]
308
Status:questionable:instrument:enable
309
Status:questionable:instrument:isummary[:Event]
310
Status:questionable:instrument:isummary:enable
310
Status:questionable:instrument:isummary:condition
311
System Subsystem
312
System:azero[N][:State]
312
System:beeper:error[:State]
313
System:communication:abort
314
System:communication:lan:configure
315
System:communication:lan:macaddress
316
System:date
316
System:error
317
System:error:clear
317
System:error:code
318
System:error:count
318
System:eventlog:save
319
System:gpib:address
319
System:kclick
320
System:local
321
System:lfrequency
322
System:password:lock
322
System:password:mode
323
System:password:new
323
System:password:unlock
324
System:posetup:state
325
System:preset
325
System:rwlock
326
System:time
327
System:version
327
Trace Subsystem
328
Data[N]:Clear
328
Data[N]:Clear:auto
328
Data[N]:Data
329
Data[N]:Data:selected
331
Data[N]:Feed
333
Data[N]:Feed:control
334
Data[N]:Points
335
Data[N]:Points:actual
335
Trace[N]:Clear
336
Trace[N]:Clear:auto
336
Trace[N]:Data
337
Trace[N]:Data:selected
339
Trace[N]:Feed
341
Trace[N]:Feed:control
342
Trace[N]:Points
343
Trace[N]:Points:actual
343
Trace[N]:Save
344
Trace[N]:Trigger:current:direction
345
Trace[N]:Trigger:current[:Level]
345
Trace[N]:Trigger:current:state
346
Trace[N]:Trigger:occur
347
Trace[N]:Trigger:offset
347
Trace[N]:Trigger:voltage:direction
348
Trace[N]:Trigger:voltage[:Level]
348
Trace[N]:Trigger:voltage:state
349
Trigger Subsystem
350
Trigger[:Sequence[N]]:Count
350
Trigger[:Sequence[N]]:Sample:count
351
Trigger[:Sequence[N]]:Source
352
Troubleshooting Guide
353
Introduction
353
Contacting Support
353
What to Do if the Power Supply Does Not Turn on
354
LAN Troubleshooting Suggestions
355
Error Summary
356
Next Steps
362
Additional Series 2280 Information
362
Maintenance
363
Introduction
363
Line Fuse Replacement
363
Upgrading the Firmware
364
From the Front Panel
365
Perform DIN VDE 701 Test
366
Cleaning the Front-Panel Display
366
Verification
367
Overview
367
Test Record
368
Performance Verification Procedures
383
Required Equipment
384
DC Voltage Setting Accuracy with Remote Sense
386
Check DC Voltage Setting Accuracy with Remote Sense
387
DC Voltage Setting Accuracy Without Remote Sense
388
Check DC Voltage Readback Accuracy Without Remote Sense
389
Check DC Voltage Line Regulation
391
DC Voltage Load Regulation
393
Check DC Overvoltage Protection
394
Check DC Current Accuracy
395
DC Overvoltage Protection
395
DC Current Accuracy
396
Check DC Current Readback Accuracy (10 a and 1 a Ranges)
397
DC Current Readback Accuracy
398
Check DC Current Readback Accuracy (100 Ma and 10 Ma Ranges
399
Check DC Current Line Regulation
401
Check DC Current Load Regulation
403
Check Overcurrent Protection
404
Check Voltage Noise (20 Mhz
405
Check Current Noise (20 Mhz
407
Calibration and Adjustment
408
Overview
408
Environmental Conditions
408
Warmup Period
409
Line Power
409
Calibration Considerations
409
Calibration Cycle
409
Appendix C
409
Environmental Conditions
409
Required Equipment
410
Characterization Shunts
411
Calibration Connection
413
Voltage Calibration Connections
414
Current Calibration Connections
415
Front-Panel Calibration Procedure
417
Voltage Calibration
418
Low-Current Calibration
419
High-Current Calibration
420
Saving Calibration Constants from the Front Panel
422
Remote Calibration Procedure
423
Remote Voltage Calibration
424
Remote Low-Current Calibration
425
Remote High-Current Calibration
427
Saving Calibration Constants Using SCPI Commands
430
Configure the Calibration Date
430
Exit the Calibration Procedure Using SCPI Commands
431
Change the Calibration Password
431
Calibration Constants
432
Status Model
434
Status Model
435
Programming and Reading Registers
438
Programming Enable Registers
438
Reading the Registers
439
Clearing the Registers
439
Status Byte and Service Request
440
Status Byte Register
440
Service Request Enable Register
442
Status Register Sets
442
Register Bit Descriptions
442
Event Registers
453
Event Enable Registers
453
Condition Registers
453
Queues
453
Output Queue
454
Error Queue
454
Serial Polling and SRQ
454
Status Model Programming Examples
455
SRQ When Trigger Model Is Finished
456
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Keithley 2280 Series Specifications
General
Brand
Keithley
Model
2280 Series
Category
Power Supply
Language
English
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