9730 Series Pulse Generator
Operating Manual
Version 1.4
Quantum Composers, INC
212 Discovery Drive
Bozeman, MT 59718
Phone: (406)582-0227
Fax: (406)582-0237
www.quantumcomposers.com
1-2
1 Table of Contents
1 TABLE OF CONTENTS ................................................................................................................................ 1-2
2 INTRODUCTION .......................................................................................................................................... 2-5
TECHNICAL SUPPORT ....................................................................................................................................... 2-5
WARRANTY..................................................................................................................................................... 2-5
PACKAGE CONTENTS ....................................................................................................................................... 2-5
3 SAFETY ISSUES ........................................................................................................................................... 3-6
4 PRODUCT OVERVIEW ............................................................................................................................... 4-7
Key Features .............................................................................................................................................. 4-7
Advanced Features/Options ........................................................................................................................ 4-7
5 PULSE GENERATOR CONCEPTS AND OPERATION ............................................................................ 5-8
System Timer Functions.............................................................................................................................. 5-8
Channel Timer Functions ........................................................................................................................... 5-8
Navigating the 9730 Front Panel ................................ ................................................................................ 5-8
6 FRONT PANEL OVERVIEW ..................................................................................................................... 6-11
9730 DISPLAY ............................................................................................................................................... 6-11
Display Layout and Indicators .................................................................................................................. 6-11
DESCRIPTION OF FRONT PANEL AREA ............................................................................................................ 6-11
Keypads and Keys .................................................................................................................................... 6-11
Second Level Menus (Function Key) ......................................................................................................... 6-12
Channel Outputs (BNC Connectors) ......................................................................................................... 6-12
Channel Status LED Indicators................................................................................................................. 6-12
Arm Switch (Keyed) .................................................................................................................................. 6-13
System Status LED Indicators ................................................................................................ ................... 6-13
Front Sync Output .................................................................................................................................... 6-13
Front Trigger Input .................................................................................................................................. 6-13
7 REAR PANEL OVERVIEW........................................................................................................................ 7-14
DESCRIPTION OF REAR PANEL AREA .............................................................................................................. 7-14
Channel Connections (Banana Jacks) ....................................................................................................... 7-14
Rear Sync Output ..................................................................................................................................... 7-14
Rear Trigger Input ................................................................................................................................... 7-14
Interlock Short ......................................................................................................................................... 7-14
Communication Ports ............................................................................................................................... 7-14
Voltage Input (AC) ................................................................................................................................... 7-14
Cooling Fans ........................................................................................................................................... 7-14
8 MENU STRUCTURE................................................................................................................................... 8-16
MODE Menu (FUNC + 1) ........................................................................................................................ 8-16
RATE Menu (FUNC + 4) .......................................................................................................................... 8-16
Channel Menu (A, B, C, or D) .................................................................................................................. 8-17
Channel Test Menu (FUNC + A, B, C, or D) ............................................................................................. 8-18
TRIG Menu (TRIG) .................................................................................................................................. 8-20
Counter Menu (FUNC + 8) ...................................................................................................................... 8-20
SYSTEM Menu (FUNC + 3) ..................................................................................................................... 8-21
STORE Menu (FUNC + 6) ....................................................................................................................... 8-22
RECALL Menu (FUNC + 9) ..................................................................................................................... 8-22
9 OPERATING INSTRUCTIONS .................................................................................................................. 9-23
1-3
QUICK START – INTERNAL SINGLE SHOT GENERATOR OPERATION .................................................................. 9-23
Pulse Width, Delay ................................................................................................................................... 9-23
Amplitude ................................................................................................................................................. 9-23
Enable ..................................................................................................................................................... 9-23
Interlock................................................................................................................................................... 9-23
Wait for Charge ....................................................................................................................................... 9-23
ARM Key Switch....................................................................................................................................... 9-23
Start ......................................................................................................................................................... 9-23
QUICK START – SINGLE SHOT EXTERNAL TRIGGER OPERATION ...................................................................... 9-24
Trig .......................................................................................................................................................... 9-24
Level ................................................................................................................................ ........................ 9-24
Edge ........................................................................................................................................................ 9-24
Filter........................................................................................................................................................ 9-24
Source ...................................................................................................................................................... 9-24
Pulse Width, Delay ................................................................................................................................... 9-24
Amplitude ................................................................................................................................................. 9-24
Enable ..................................................................................................................................................... 9-24
Interlock................................................................................................................................................... 9-24
Wait for Charge ....................................................................................................................................... 9-25
ARM Key Switch....................................................................................................................................... 9-25
Start ......................................................................................................................................................... 9-25
STANDARD OPERATION MODES ..................................................................................................................... 9-25
System Pulse Generation Overview ........................................................................................................... 9-25
Single Shot Mode (Trigger Disabled) ........................................................................................................ 9-25
Burst Mode (Trigger Disabled) ................................................................................................................. 9-25
External Input Overview ........................................................................................................................... 9-26
Single Shot Mode (Trigger Enabled) ......................................................................................................... 9-27
SPECIAL TESTING MODES .............................................................................................................................. 9-27
Pre Pulse Resistance Testing .................................................................................................................... 9-27
Post Pulse Resistance Testing ................................................................................................ ................... 9-28
Testing Mode Error/Status Conditions ...................................................................................................... 9-28
10 PROGRAMMING THE 9730 .................................................................................................................. 10-30
PERSONAL COMPUTER TO PULSE GENERATOR COMMUNICATION .................................................................. 10-30
RS232 Interface Overview ...................................................................................................................... 10-30
USB Interface Overview ......................................................................................................................... 10-31
Ethernet Interface Overview ................................................................................................................... 10-32
PROGRAMMING COMMAND TYPES AND FORMAT .......................................................................................... 10-32
Line Termination .................................................................................................................................... 10-32
IEEE 488.2 Common Command Format ................................................................................................. 10-33
SCPI Command Keywords...................................................................................................................... 10-33
SCPI Keyword Separator ....................................................................................................................... 10-33
SCPI Optional Keywords ........................................................................................................................ 10-33
SCPI Parameter Types ........................................................................................................................... 10-34
Error Codes ........................................................................................................................................... 10-34
PROGRAMMING EXAMPLES .......................................................................................................................... 10-34
Example 1: ............................................................................................................................................. 10-34
Example 2: ............................................................................................................................................. 10-35
9730 SCPI COMMAND SUMMARY ................................................................................................................ 10-35
Instrument Commands ................................ ............................................................................................ 10-35
System Pulse Commands ........................................................................................................................ 10-36
Channel Commands ............................................................................................................................... 10-37
Display Commands ................................................................................................................................ 10-38
System Commands .................................................................................................................................. 10-39
IEEE 488.2 COMMON COMMANDS ............................................................................................................... 10-40
SPECIAL COMMANDS ................................................................................................................................... 10-40
1-4
APPENDIX A - SPECIFICATIONS....................................................................................................................A-1
APPENDIX B - SAFETY SYMBOLS.................................................................................................................. B-1
SAFETY MARKING SYMBOLS .......................................................................................................................... B-1
2-5
2 Introduction
This manual is designed to familiarize you with the Quantum Composers 9730 series
pulse generator and is arranged so that you can easily find the information for which
you are looking. Generally, each topic has its own section and no section assumes that
you have read anything else in the manual.
Technical Support
For questions or comments about operating the 9730 our technical staff can be reached
via one of the following methods:
Phone: (406) 582-0227
Fax: (406) 582-0237
Online: www.quantumcomposers.com
Warranty
In addition to a 30 day money back guarantee, the 9730 has a one-year limited warranty
from the date of delivery. This warranty covers defects in materials and workmanship.
Quantum Composers will replace any defective unit. Contact us for information on
obtaining warranty service.
Package Contents
The box you receive should contain the following:
9730 Pulse Generator
o AC Power Cord
o Accessories
Arm Switch Keys (qty 2)
50 Ohm Interlock Shorting Jumper (BNC)
Disc that includes
o Operating Manual
o Software Drivers
o Communication Software
Contact Quantum Composers at (406)582-0227 if any parts are missing.
3-6
3 Safety Issues
Normal use of equipment exposes users to a certain amount of danger from electrical
shock because testing must be performed where exposed voltage is present. An
electrical shock causing 10 milliamps of current to pass through the heart will stop most
human heartbeats. Voltages as low as 35 V (DC or RMS AC) should also be
considered dangerous and hazardous since they can produce a lethal current under
certain conditions. Higher voltages pose an even greater threat because such voltage
can more easily produce a lethal current. Your normal work habits should include all
accepted practices that will prevent contact with exposed high voltage, and those that
will steer current away from your heart in case of accidental contact with a high voltage.
You will significantly reduce the risk factor if you know and observe the following safety
precautions:
If possible, familiarize yourself with the equipment being tested and the location
of its high-voltage points. However, remember that high voltage may appear at
unexpected points in defective equipment.
Do not expose high voltage components needlessly. Remove housings and
covers only when necessary. Turn off equipment while making test connections
in high-voltage circuits. Discharge high-voltage capacitors after removing power.
Use an insulated floor material or a large, insulated floor mat to stand on, and an
insulated work surface on which to place equipment. Make certain such surfaces
are not damp or wet.
Use the time-proven “one hand in the pocket” technique while handling an
instrument probe. Be particularly careful to avoid contacting a nearby metal
object that could provide a good ground return path.
When testing AC powered equipment, remember that AC line voltage is usually
present on some power input circuits, such as the on-off switch, fuses, power
transformer etc., and any time the equipment is connected to an AC outlet, even
if the equipment is turned off.
Never work alone. Someone should always be nearby to render aid if necessary.
Training in CPR first aid is highly recommended.
4-7
4 Product Overview
The 9730 series combines industry leading QC digital delay methodologies along with
high capacity charge banks to generate precisely timed adjustable amplitude current
pulses. This ability to generate highly precise current pulses makes this unit ideal for
applications that require a high level of accuracy and repeatability.
Key Features
Up to 4 individual outputs with fully individual programming and control.
Up to 6A output per channel (Standard Instrument).
Complete channel and system setup stored in memory. Provides 12 memory
storage slots.
Remote programmability – RS232, USB and Ethernet (optional).
Front and rear external trigger inputs.
Advanced Features/Options
Resistance measurement (4 wire) for each channel with pre and post pulse
testing features.
Current and voltage monitor outputs.
Front and rear sync outputs.
Safety features including remote interlock and removable keyed enable
switch.
5-8
5 Pulse Generator Concepts and Operation
System Timer Functions
Burst Mode
The System Timer functions as a non-retriggerable, multi-vibrator T0 pulse
generator in ‘Burst’ mode. This means that once started the timer will produce
pulses continuously at the specified rate until the highest channel burst count is
reached. Before pulses can be generated, the timer must be armed and then
receive a System Start pulse. Arming the counter is done by pressing the
RUN/STOP key. With external trigger disabled, the RUN/STOP key or a
software trigger command may be used to generate the System Start pulse for
the counter. With external trigger enabled, the RUN/STOP key or software
trigger command arms the unit and the subsequent external trigger pulses
replace the T0 pulses.
Single Shot Mode
In ‘Single Shot’ mode, the System Timer is bypassed and the T0 pulse is
generated directly from the System Start pulse.
The T0 pulses are distributed to the Channel Start input of all of the Channel
Timers.
Channel Timer Functions
The Channel Timer functions as a non-retriggerable, delayed, one shot pulse
generator. This means that the timer will only generate one delayed pulse for
every Channel Start pulse received. Once the channel timer has started
counting, additional start pulses will be ignored until the pulse has been
completed (non-retriggerable). The Channel Start pulse for each channel is
provided by the internal T0 pulse.
Whether or not a pulse is generated for each T0 pulse is determined by the
channel enable setting. Pulses are defined by a time delay, from their sync or
start pulse to the active edge, a time width over which the pulse is active, and an
amplitude during the active portion of the pulse.
Navigating the 9730 Front Panel
Selecting Menus
Parameters are grouped in menus, selectable using the function keys. To select
the output channel parameters, press the letter key corresponding to the desired
channel. To select other menus, including the channel test menus, press the
FUNC key and then the key corresponding to the desired function.
Menus may include a number of different pages, with each page containing up to
four adjustable parameters or state variables. The status block in the upper-left
5-9
corner of the display shows a vertical arrow if the current menu contains
additional pages. To select the next page, press the channel button again or
select the same menu pressing the FUNC key and the channel/menu key again.
Selecting Menu Items
Within a menu, the blinking cursor indicates the current menu item for editing.
The NEXT key will select a different adjustable menu item.
Numeric Input Mode
When the current item is numeric, the system enters the Numeric Input Mode. In
this mode data may be edited in one of two ways:
o Arrow Keypad - The Left and Right arrow keys are used to select a digit to
edit. The selected digit blinks to identify itself as the active digit. The Up
and Down arrow keys are then used to increment or decrement this digit.
o Numeric Keypad - Enter the number, including decimal point using the
numeric keypad. Complete the number using the ENTER key. Errors may
be corrected using the backspace key or to start over press the clear key
(CLR). Pressing the CLR key a second time will exit the numeric keypad
mode and restore the original number.
Entering Non-Numeric Parameters
When the current item is non-numeric, the Up and Down arrow keys are used to
select among different options for the parameter.
Alphanumeric Input Mode
When the current item is alphanumeric, the system enters the Alphanumeric
Input Mode. In this mode, data is entered using the alphanumeric keypad.
Pressing a key will display the first letter shown on the keypad. Repeated key
presses will toggle through all the letters, both upper and lower case, shown on
the key cap. To enter two letters which appear on the same key cap, select the
first character, then use the right arrow to shift to the next position and enter the
next letter. The Left and Right arrow keys may be used to position the cursor to
edit any character. When data entry is complete, the ENTER key must be
pressed. The keys contain the following characters:
o 1 => 1 2 3 4 5 6 7 8 9 0
o 2 => A B C a b c 2
o 3 => D E F d e f 3
o 4 => G H I g h i 4
o 5 => J K L j k l 5
o 6 => M N O m n o 6
o 7 => P Q R S p q r s 7
o 8 => T U V t u v 8
o 9 => W X Y Z w x y z 9
o 0 => 0 1 2 3 4 5 6 7 8 9
o . => . , # $ % & ?
5-10
o - => - + * / space
Enabling System Output
The RUN/STOP key is used to arm the system. With external trigger disabled,
the key will arm and start pulse output. With external trigger enabled, the key will
arm the pulse generator. Pulse output then starts after the first valid trigger input.
With external trigger enabled, pressing the RUN/STOP key a second time
disables the pulse generator.
6-11
6 Front Panel Overview
9730 Display
Display Layout and Indicators
A graphical display module displays parameters and status information. The status
information is located in the upper-left corner of the display, between the two brackets.
There are three enunciators:
Vertical Arrow Indicates there are additional pages to
the current Menu.
Blinking Circle Indicates the unit is actively generating
pulses, or armed and waiting for an external trigger.
Musical Note Indicates the function key has been pressed
The upper-right side of the display contains the title of the currently displayed menu.
The rest of the display is used for system parameters. The display brightness may be
adjusted, allowing the instrument to be used under various lighting conditions.
Description of Front Panel Area
Keypads and Keys
Four keypads provide fast access to various menus and easy editing of system
parameters.
Channel Keys Provides one touch access to the desired channel menu for
setting up the channel parameters. The channel menu keys
are indicated with a capital letter corresponding to the
channel (e.g. press the A key to display the menu
corresponding to channel A). The FUNC key (solid yellow
key at the bottom center of the numeric keypad) allows the
channel keys to select the channel test menus.
Trigger Key Provides one touch access to the trigger menu for setting up
trigger parameters. The trigger menu key is indicated with
the letters TRIG.
Arrow Keypad The up and down arrows (referred to as UP and DOWN keys
for the rest of this document) are used to
increment/decrement the current parameter (indicated by the
blinking cursor). The position of the cursor controls the step
size for each increment. The right and left arrows (referred to
as LEFT and RIGHT keys for the rest of this document)
move the cursor to different positions within the current
6-12
parameter. The NEXT key selects the next parameter in the
currently displayed menu.
Numeric Keypad Allows numbers and alphanumeric values to be entered.
When entering alphanumeric values, pressing a key will
display the first letter shown on the key. Repeated key
presses will toggle through all the letters, both upper and
lower case, shown on the keycap. To enter two letters which
appear on the same keycap, select the first character, then
use the right arrow to shift to the next position and enter the
next letter. When data entry is complete the ENTER key
must be pressed. The FUNC key allows a key to select the
secondary function/menu in yellow directly above the key.
Second Level Menus (Function Key)
The second level menus (indicated in yellow above certain keys) are accessed through
the use of the yellow FUNC key. Pressing the FUNC key once and then pressing the
desired menu key will display the specified second level menu. Pressing the FUNC key
twice in succession will put the unit into Function Lock mode, where the second level
menus can be accessed without repeatedly pressing the FUNC key. Pressing the FUNC
key a third time will exit Function Lock mode.
Channel Outputs (BNC Connectors)
Each channel has two outputs on the front panel:
1. Voltage Monitor This is an analog representation in volts of the voltage output
to the load. The transfer function of this follower is 0.2 V/V,
as listed directly below the monitor BNC connector.
2. Current Monitor This is an analog representation in volts of the current output
to the load. The transfer function of this follower is 0.5 V/A,
as listed directly above the monitor BNC connector.
The outputs of the voltage and current monitors are optically isolated and have a
typical 1us delay.
Channel Status LED Indicators
Each channel has four panel LED indicators and one button led indicator to reflect the
current status of the channel:
ARMED Green LED indicating the channel is armed and ready.
CHARGE READY Amber LED indicating the channel capacitor bank is charged
and ready.
RESISTOR FAULT Red LED indicating the pretest error status of the current
channel.
GROUND FAULT Red LED indicating the pretest error status of the current
channel.
6-13
Channel Button Green LED back illuminating button text when the channel is
enabled.
Arm Switch (Keyed)
The upper right hand corner of the front panel contains a safety Arm Switch which may
be turned to the ‘STANDBY’ position while changing parameters to ensure no pulses
are generated. This switch must be in the ‘ARM’ position in order to allow generation of
pulses.
NOTE: The Arm switch keys are included with the shipped accessories.
System Status LED Indicators
The system state has two front panel LED indicators to reflect the current system state:
Power Green LED back illuminating button text when system is
powered on.
ARM Red LED indicating the system arm keyswitch is in the “Arm”
position.
Trigger Green LED back illuminating button text when the global
system trigger is enabled.
Run Green LED back illuminating button text while system is
pulsing or ready to trigger.
Front Sync Output
The front panel sync output is user selectable to output the TTL representation of the
system pulse or any of the individual channels. This output may also be disabled.
Front Trigger Input
The front panel trigger input is user selectable as the source for the global system
trigger.
7-14
7 Rear Panel Overview
Description of Rear Panel Area
Channel Connections (Banana Jacks)
Each channel has two sets of banana jacks for connecting to the device under test:
OUTPUT Red and Black current jacks (labeled ‘A’ between them)
connect to the positive and negative drive terminals
(respectively) of the device under test.
MEASURE Red and Black voltage sense jacks (labeled ‘V’ between
them) connect to the positive and negative measurement
terminals (respectively) of the device under test. This
connection is optional when pre and/or post resistance tests
are not enabled.
Rear Sync Output
The rear panel sync output is user selectable to output the TTL representation of the
system pulse or any of the individual channels. This output may also be disabled.
Rear Trigger Input
The rear panel trigger input is user selectable as the source for the global system
trigger.
Interlock Short
This is a protection jumper required for system or channels to enable or arm. It is
labeled ‘INTLK’ on the rear panel overlay. A bypass shorting jumper is included with the
instrument when shipped.
Communication Ports
This instrument ships with RS232 and USB communications installed. An option to
include Ethernet may be specified at the time the order is placed. The rear panel
overlay labels for the communications connections are ‘RS232’, ‘USB’, and
‘ETHERNET’ respectively.
Voltage Input (AC)
A switched and fused AC input connection is located on the rear panel along with
markings indicating the required voltage and maximum current draw.
Cooling Fans
The rear panel also contains one or two cooling fan outputs depending on whether the
instrument has two or four channels respectively. Air is circulated in through the rear
7-15
panel and out through the side panel openings. WARNING: DO NOT BLOCK
COOLING FAN INPUTS OR OUTPUT(S).
8-16
MODE Menu (FUNC + 1)
Page0
o Line0 – empty
o Line1 – Mode: Single Shot, Burst
o Line2 – empty
o Line3 – empty
Setting System Mode Parameters
Mode: Selects the T0 mode: Single Shot or Burst mode.
Note: When Trigger is enabled while in Burst mode, burst mode is disabled
and the unit will perform as in Single Shot mode. The display will show
“Burst (Disabled)” on the Mode: line.
RATE Menu (FUNC + 4)
Page0
o Line0 – empty
o Line1 – empty
o Line2 – Per: <period>
o Line3 – decimal place indicator
Setting System Rate Parameters
Per: Sets the T0 period which determines the burst mode output
frequency of the unit.
8 Menu Structure
8-17
Channel Menu (A, B, C, or D)
Page0
o Line0 – Channel: Enabled, Disabled
o Line1 – Wid: <width>
o Line2 – Dly: <delay>
o Line3 – decimal place indicator
Page1
o Line0 – ‘Enable’ Enabled, Disabled
o Line1 – empty
o Line2 – Brst: <burst>
o Line3 – Ampl: <amplitude>
Setting Channel Output Parameters
‘Enable’ Enables or disables the channel for pulsing.
Wid: Sets the channel pulsewidth.
Dly: Sets the channel delay until active edge.
Brst: Sets the burst count for the channel. When system is in
‘Single Shot’ mode, this parameter will display ‘(Disabled)’
and not be adjustable.
Ampl: Sets the amplitude of the output current pulse.
Offs: Sets the amplitude offset of the output current pulse.
8-18
Channel Test Menu (FUNC + A, B, C, or D)
Page0
o Line0 – empty
o Line1 – PreTest: Disabled
o Line2 – empty
o Line3 – empty
Page0 – Alt
o Line0 – empty
o Line1 – PreTest: Enabled
o Line2 – PreMeas: “measured resistance”
o Line3 – empty
Page1 – (Only available when PreTest is Enabled)
o Line0 – empty
o Line1 – PreMax: <pretest maximum resistance>
o Line2 – PreMin: <pretest minimum resistance>
o Line3 – IPreMax: <pretest measurement current>
Setting Channel Pre-Test Parameters
PreTest: Enables or disables pre resistance test and requirements for
the channel.
PreMeas: Displays the measured resistance from the last run pre-test.
PreMax: Sets the maximum resistance allowable for pulse generation.
PreMin: Sets the minimum resistance allowable for pulse generation.
IPreMax: Sets the test current for measuring the resistance.
Page2
o Line0 – empty
o Line1 – PostTest: Disabled
o Line2 – empty
o Line3 – empty
Page2 - Alt
o Line0 – empty
o Line1 – PostTest: Enabled
o Line2 – PstMeas: “measured resistance”
o Line3 – TstType: Standard, Outside, Outside Pre
Page3 – (Only available when PostTest is Enabled)
o Line0 – empty
o Line1 – PstMax: <post-test maximum resistance>
o Line2 – PstMin: <post-test minimum resistance>
o Line3 – IPstMax: <maximum test current>
Setting Channel Post-Test Parameters
8-19
PstTest: Enables or disables post resistance test and requirements
for the channel.
PstMeas: Displays the measured resistance from the last run post-test.
TstType: Sets the type of test for determining pass/fail condition of the
Post Test. The types are as follows:
Standard – Indicates “Ground Fault” if PstMeas is less than
PstMin and “Resistance Range Error” if above PstMax if
PstMax is enabled.
Outside – Indicates “Resistance Range Error” if PstMeas is
between PstMin and PstMax.
Outside Pre – Indicates “Resistance Range Error” if PstMeas
is between PreMin and PreMax.
PstMax: Sets the maximum resistance allowable to consider a post-
test as passed. (May be disabled by setting to 0 through the
command interface)
PstMin: Sets the minimum resistance allowable to consider a post-
test as passed.
IPstMax: Sets the maximum test current for measuring the resistance.
8-20
TRIG Menu (TRIG)
Page0
o Line0 – empty
o Line1 – Mode: Disabled
o Line2 – empty
o Line3 – empty
Page0 – Alt
o Line0 – empty
o Line1 – Mode: Enabled
o Line2 – Level: <trigger threshold level>
o Line3 – Edge: <trigger edge>
Page1
o Line0 – empty
o Line1 – Filter: Disabled
o Line2 – empty
o Line3 – Source: Front Input, Rear Input
Page1 - Alt
o Line0 – empty
o Line1 – Filter: Enabled
o Line2 – MinWid: <minimum trigger pulse width>
o Line3 – Source: Front Input, Rear Input
Setting Trigger Parameters
Mode: Enables or disables external trigger operation.
Level: Sets the trigger threshold level.
Edge: Sets the triggering edge to rising or falling.
Filter: Enables or disables minimum trigger pulse width filtering.
MinWid: Sets the minimum allowable trigger pulse width.
Source: Sets the trigger input source to front panel or rear panel
Counter Menu (FUNC + 8)
Page0
o Line0 – empty
o Line1 – Counter: Disabled, Enabled
o Line2 – Counts: “system pulse count since reset”
o Line3 – CLR to zero counter.
Setting Counter Parameters
Counter: Enables or disables the T0 pulse counter.
Counts: Returns the current value of the counter.
CLR: Pressing the CLR while in the Counter menu will reset the
Counts value to 0.
8-21
SYSTEM Menu (FUNC + 3)
Page0
o Line0 – empty
o Line1 – Front Sync: Disabled, T0, ChA, ChB, (ChC, ChD)
o Line2 – Rear Sync: Disabled, T0, ChA, ChB, (ChC, ChD)
o Line3 – empty
Page1
o Line0 – empty
o Line1 – Interface: RS232
o Line2 – Baud Rate: <RS232 baud rate>
o Line3 – Echo: <RS232 echo>
Page1 - Alt
o Line0 – empty
o Line1 – Interface: USB
o Line2 – empty
o Line3 – empty
Page1 - Alt
o Line0 – empty
o Line1 – Interface: Ethernet
o Line2 – empty
o Line3 – empty
Note: Ethernet Interface will only display if unit was ordered with the
Ethernet Option.
Page2
o Line0 – empty
o Line1 – Key Rate: <key rate>
o Line2 – Key Vol: <key volume>
o Line3 – empty
Page3
o Line0 – empty
o Line1 – Mark: <decimal point indicator>
o Line2 – LCD: <LCD brightness>
o Line3 – empty
Setting System Parameters
Front Sync: Sets the source of the front panel sync output signal set to
the front panel. Choices are Disabled, T0, ChA, and ChB for
two channel instruments, with ChC and ChD added for four
channel instruments.
8-22
Rear Sync: Sets the source of the rear panel sync output signal set to
the front panel. Choices are Disabled, T0, ChA, and ChB for
two channel instruments, with ChC and ChD added for four
channel instruments.
Interface: Selects through the installed interfaces and allows
adjustments of appropriate parameters.
Baud Rate: Sets the baud rate for the RS232 communications port.
Echo: Enables or disables command echoing for the RS232
communications port.
Key Rate: Sets the key repeat rate (useful for modifying the rate at
which parameters adjust)
Key Vol: Sets the perceived key beep volume by adjusting the beep
time.
Mark: Sets which character, either a ‘,’ or a ‘.’, to use as a decimal
point indicator.
STORE Menu (FUNC + 6)
Page0
o Line0 – empty
o Line1 – Store#: <configuration# 1-12>
o Line2 – Name: <configuration name>
o Line3 – empty
Setting Store Parameters
Store#: Sets which user bin to store the current instrument setup.
Name: Allows the user to rename the user bin.
RECALL Menu (FUNC + 9)
Page0
o Line0 – empty
o Line1 – Recall#: <configuration# 0-12>
o Line2 – empty: “configuration #”
o Line3 – empty
Setting Recall Parameters
Recall#: Sets which user bin to recall.
Level: Displays the name of the selected user bin.
9-23
9 Operating Instructions
Quick Start – Internal Single Shot Generator Operation
Although the 9730 has a powerful set of feature extensions that allow the user to cater it
to many unique test setups, the following steps may be followed to quickly generate a
single shot internally generated pulse. Starting from the default settings, which can be
recalled by recalling configuration 0, the following parameters need to be set:
Pulse Width, Delay
Enter the Channel menus by pressing the appropriate channel key. Enter the
required pulse width and delay. Repeat for each output channel.
Amplitude
Enter the channel menus as specified in the previous step. Press the channel
menu an additional time to display the second parameter page. Enter the
desired current amplitude. Repeat for each output channel.
Enable
Enter the channel menus as specified in the previous step. Use the up arrow key
to change the first line of the display to read ‘Enabled’. Repeat for each output
channel.
Interlock
Make sure the Safety Interlock on the rear panel is shorted with either a setup
specific safety connection or the 50 Ohm interlock bypass (shipped with the
instrument accessories).
Wait for Charge
When the Safety Interlock is properly shorted the instrument will charge up the
capacitor banks for each channel (regardless of whether the channel is enabled
or not). When the channel ‘CHARGE READY’ LEDs become illuminated,
proceed to the next step.
ARM Key Switch
Turn the Arm Key Switch to the ARM position. If the system ‘ARM’ LED or the
desired channel ‘ARMED’ LEDs do not illuminate, the previous two steps need to
be revisited.
Start
Press the RUN/STOP key to generate a single pulse for each enabled channel.
9-24
Quick Start – Single Shot External Trigger Operation
To generate a single pulse for single external trigger event, based on the default
configuration 0, the following parameters need to be set:
Trig
Enter the trigger menu by pressing the TRIG key. Change mode to ‘Enabled’.
Level
Press the NEXT key to select the trigger threshold voltage parameter. Adjust to
approximately 50% of the trigger signal amplitude.
Edge
Press the NEXT key to select the Edge parameter. Set the instrument to trigger
off the rising edge or falling edge as desired.
Filter
Press the TRIG key to select the next page. Select the filter to be enabled or
disabled. If enabled, press the NEXT key to select the filter width. Adjust the
filter width to be shorter that the external trigger pulse width but longer than any
“errant” pulses.
Source
Press the NEXT key to select the trigger source. Select either front or rear input.
Pulse Width, Delay
Enter the Channel menus by pressing the appropriate channel key. Enter the
required pulse width and delay. Repeat for each output channel.
Amplitude
Enter the channel menus as specified in the previous step. Press the channel
menu an additional time to display the second parameter page. Enter the
desired current amplitude. Repeat for each output channel.
Enable
Enter the channel menus as specified in the previous step. Use the up arrow key
to change the first line of the display to read ‘Enabled’. Repeat for each output
channel.
Interlock
Make sure the Safety Interlock on the rear panel is shorted with either a setup
specific safety connection or the 50 Ohm interlock bypass (shipped with the
instrument accessories).
9-25
Wait for Charge
When the Safety Interlock is properly shorted the instrument will charge up the
capacitor banks for each channel (regardless of whether the channel is enabled
or not). When the channel ‘CHARGE READY’ LEDs become illuminated,
proceed to the next step.
ARM Key Switch
Turn the Arm Key Switch to the ARM position. If the system ‘ARM’ LED or the
desired channel ‘ARMED’ LEDs do not illuminate, the previous two steps need to
be revisited.
Start
Press the RUN/STOP key to allow the unit to generate a single pulse for each
enabled channel at the next external trigger event.
Standard Operation Modes
System Pulse Generation Overview
Please refer to the System Timer Functions section for and overview of how the system
generates system pulses. System modes are controlled via the MODE menu.
Single Shot Mode (Trigger Disabled)
The RUN/STOP button triggers a single pulse for each enabled channel. To generate
channel pulses in single shot mode:
In the system MODE menu: Set to ‘Single Shot’ mode.
In the channel menu: Set desired channels to ‘Enabled’.
Verify the rear panel Safety Interlock.
Turn Arm Switch to ‘ARM’ Position.
Run Pre-Test if enabled and resolve any resulting error conditions.
Pressing the RUN/STOP key will now generate a single pulse for each enabled
channel.
NOTE: All operation modes require the Interlock to be in place and the Arm
Switch to be in ARM position.
Burst Mode (Trigger Disabled)
The RUN/STOP button causes each channel to generate exactly the number of pulses
specified by that channels burst count. The rate of pulse generation is specified in the
RATE menu. The minimum period will be limited to 5 times the largest set pulse width.
9-26
Pressing the RUN/STOP button while the burst is in process will stop the output. After
the burst has been completed, pressing the RUN/STOP button will generate another
burst. To generate a burst of pulses:
In the system MODE menu: Set to ‘Burst’ mode.
In the system RATE menu: Set the desired period.
In the system TRIG menu:
o Set trigger mode to ‘Enabled’.
o Set trigger level.
o Set trigger edge.
In the channel menu:
o Set desired channels to ‘Enabled’.
o Set the desired burst count for each enabled channel.
Verify the rear panel Safety Interlock.
Turn Arm Switch to ‘ARM’ Position.
Run Pre-Test if enabled and resolve any resulting error conditions.
Pressing the RUN/STOP key will now generate a burst of pulses for each enabled
channel.
NOTE: All operation modes require the Interlock to be in place and the Arm
Switch to be in ARM position.
External Input Overview
The front and rear panel external inputs may be used to trigger the system and/or
channel timers to generate a single pulse. The external input has both level and filter
options so that only the desired pulse type (amplitude and width) is able to trigger the
unit. The external trigger rate is equal to the widest channel width times 1.2 or the
output current amplitude setting, whichever is larger.
Period=k*Width; k=1.2 or output amplitude whichever is larger
The unit will not allow triggers any faster than this to protect the unit from damage due
to over-triggering.
Trigger Level. This sets a threshold level that the input trigger must be higher
than before it will become active. Typically, this level should be set to a 50% level
of the input trigger amplitude. This level can be used to filter out any pulses that
are not of sufficient amplitude. Care must be taken that the level is not set too
low as this could cause triggering off of a bias or noise floor level.
9-27
Filter Width. When enabled, the filter width can be adjusted so that the unit will
not accept any trigger pulse widths that are less than the set filter width. This
allows for filtering out of errant or “runt” pulses that may be caused by noisy
environments.
Single Shot Mode (Trigger Enabled)
The external trigger input triggers a single pulse for each enabled channel. External
triggering is internally limited to 5 times the maximum set pulse width. To generate
channel pulses in single shot mode with the trigger enabled:
In the system MODE menu: Set to ‘Single Shot’ mode.
In the system TRIG menu:
o Set trigger mode to ‘Enabled’.
o Set trigger level.
o Set trigger edge.
In the channel menu: Set desired channels to ‘Enabled’.
Verify the rear panel Safety Interlock.
Turn Arm Switch to ‘ARM’ Position.
Run Pre-Test if enabled and resolve any resulting error conditions.
Pressing the RUN/STOP key will now allow a single pulse for each enabled channel
at the next external trigger event.
NOTE: All operation modes require the Interlock to be in place and the Arm
Switch to be in ARM position.
Special Testing Modes
Pre Pulse Resistance Testing
The 9730 allows the user to setup a pre pulse resistance test that, when enabled, must
run and pass within the user specified range before allowing pulses to be generated for
any enabled channel. To use pre pulse resistance testing:
Setup the system mode, period and channel pulse parameters as described in
the Standard Operation Modes section.
In the Channel Test Menu:
o Set PreTest to ‘Enabled’
o Set PreMax to the maximum “Go” resistance
o Set PreMin to the minimum “Go” resistance
9-28
Verify the rear panel Safety Interlock.
Turn Arm Switch to ‘ARM’ Position.
Press the FUNC key and then the PRE key (‘.’ on the numeric keypad) to run the
pre pulse resistance test.
Refer to Testing Mode Error Conditions for more information on any resulting
errors.
Post Pulse Resistance Testing
The 9730 allows the user to setup a post pulse resistance test that, when enabled, may
be run at any time to verify the resistance of the connected load is greater than a user
specified minimum. To use pre pulse resistance testing:
Setup the system mode, period and channel pulse parameters as described in
the Standard Operation Modes section.
In the Channel Test Menu:
o Set PstTest to ‘Enabled’
o Set PstMin to the minimum resistance expected for a “fired” device.
Verify the rear panel Safety Interlock.
Turn Arm Switch to ‘ARM’ Position.
Press the FUNC key and then the POST key (‘.’ on the numeric keypad) to run
the post pulse resistance test.
Refer to Testing Mode Error Conditions for more information on any resulting
errors.
Testing Mode Error/Status Conditions
Status - “No Error Detected” – This message is returned through a channel
error query whenever no errors are detected for the current channel. Refer to
Channel Commands for more information channel queries.
9-29
Error - “Valid Pre-Test Required” – This message is displayed or returned
through a channel error query when the instrument has attempted to trigger and
one or more channels with pre pulse resistance testing enabled have not yet
passed testing.
o Simultaneous flashing of the ‘RESISTOR FAULT’ and ‘GROUND FAULT’
LEDs for any channel indicates the test has not yet been run (or re-run
since the last pulsing attempt).
o Alternating flashing of the ‘RESISTOR FAULT’ and ‘GROUND FAULT’
LEDs indicate the test was performed previously but failed.
Error - “Failed Resistance Range” – This message is displayed or returned
through a channel error query when the pre or post pulse resistance testing has
been run, and one or more channels were determined to have a resistance
outside the valid range.
o Flashing of the ‘RESISTOR FAULT’ LEDs indicate the test was performed
but the resistance was determined to be outside the valid range.
Error - “Ground Fault” – This message is displayed or returned through a
channel error query after running the post pulse resistance test, when one or
more channels were determined to have a resistance less than the set minimum.
o Flashing of the ‘GROUND FAULT’ LEDs indicate the test was performed
but the resistance was determined to be outside the valid range.
Status - “Arm Switch/Interlock” – This message is displayed when attempting
to fire the unit or run a test with the Arm Switch or Interlock disengaged. This
message will also be returned through the channel error query anytime the Arm
Switch or Interlock is disengaged.
Status - “Channel Not Enabled” – This message is returned through a channel
error query when the current channel is not enabled for pulse output.
Status - “No Test Enabled” – This message is returned through a channel error
query when the current channel is not enabled for pre or post resistance testing.
Error - “HW Fault” – This message is displayed or returned through a channel
error query when a channel has failed a self-diagnostic check.
Note: If a “HW Fault” error is indicated, please contact customer service and
indicate the number of the error as returned by the channel error query. This
may indicate an internal hardware failure of the unit.
10-30
10 Programming the 9730
Personal Computer to Pulse Generator Communication
The 9730 comes standard with a RS232 serial and USB interface. An Ethernet
interface is available as an option. All menu settings can be set and retrieved over the
computer interface using a simple command language. The command set is structured
to be consistent with the Standard Commands for Programmable Instruments (SCPI).
Although due to the special features optional in the 9730, some of the commands are
not included in the specification. The syntax is the same for all interfaces.
RS232 Interface Overview
The serial port is located on the back of the 9730 and uses a 9-pin D-type connector
with the following pin-out (as viewed from the back of the unit):
No Connection
Tx – Transmit (to computer)
Rx – Receive (from computer)
DTR – Connected to pin 6
Ground
DSR – connected to pin 4
RTS – Connected to pin 8
CTS – Connected to pin 7
No Connection
The serial port parameters should be set as follows:
Baud Rate
o 115200 (default)
o 57600
o 38400
o 9600
o 4800
Data Bits
o 8
Parity
o None
Stop Bits
o 1
*The default baud rate for the RS232 is 115200
10-31
USB Interface Overview
The USB interface is standard on the 9730. Before this type of communication can be
used, the appropriate drivers must be installed on the personal computer. These
drivers are included on the disc that was shipped with your unit. Please contact
Quantum Composers or visit www.quantumcomposers.com for updated installation files
and instructions.
USB communication is achieved by using a mapped (virtual) COM port on your
computer. The driver installation executable will obtain an unused COM port number,
install the USB drivers, and make that COM port number available for typical RS232
communication to the pulse generator. HyperTerminal or other common software may
be used.
When communicating through the mapped COM port over USB, the baud rate for the
communication port used by the USB chip must match the baud rate for the COM port
of your computer. The USB baud rate is set at 38400.
USB communication notes:
The correct drivers must be installed on your computer before communication
can be accomplished via USB.
The BAUD rate on your computer must be set to 38400 for successful
communication.
USB 1.0 specification is used. The USB cable can be removed without
“unplugging” the device in the operating system environment.
10-32
Ethernet Interface Overview
The Ethernet interface used in the 9730 is a “Digi Connect ME” module supplied by Digi
Connectware, Inc. There are several ways to successfully communicate with the pulse
generator over Ethernet. The two most popular methods are raw TCP/IP (such as
LabVIEW or programming with VISA libraries) and by mapping your computer’s COM
port using the Digi Connectware’s “Realport Drivers”.
Whatever method of Ethernet communication is ultimately desired, the utilities supplied
by Digi Connectware (included on the disc shipped with the Ethernet-optioned pulse
generator) will be critical to implementing the communications. Please install these
utilities.
Ethernet communication notes:
The Digi Connectware’s “Digi Device Discovery” can be used to determine what
IP address was assigned by the local DHCP server (if any).
“Digi Device Discovery” can also be used to open a web interface to the Ethernet
module. Simply double-click on the IP address that is displayed in the Digi
Device Discovery utility.
o Username: “root”
o Password: “dbps”
If a mapped COM port is the desired communication method, the Digi
Connectware’s “Realport Drivers” setup must be used to install the COM port on
your computer. Please refer to the Digi Connectware documentation supplied on
the disc, or call Quantum Composers technical support.
Programming Command Types and Format
The 9730 Pulse Generator uses two types of programming commands: IEEE 488.2
Common Commands and Standard Commands for Programmable Instruments (SCPI).
The format is the same for all interfaces. HyperTerminal (in Windows) or any other
generic terminal program may be used to interactively test the commands using the
RS232 interface. The format of each type is described in the following paragraphs.
Line Termination
The pulse generator uses text-style line terminations. When a command is sent to the
unit the firmware is programmed to read characters from a communication port until it
reads the line termination sequence.
The command string is parsed and executed after reading these characters. These
characters are the “carriage return” and “linefeed”. They are ASCII character set values
13 & 10 respectively (hex 0x0D and 0x0A). All command strings need to have these
characters appended.
When the pulse generator responds to a command, whether it is a query or a parameter
change, it also appends its return strings with these characters. Coded applications
10-33
could use the behavior to know when to stop reading from the unit. However, if the
“echo” parameter is enabled, there will be two sets of line terminators, one following the
echoed command string, and the one following the pulse generator’s response.
Note: The pulse generator will echo commands on the DB9 serial port only.
The pulse generator responds to every communication string. If the communication
string is a query, the unit responds with the queried response (or error code) followed by
the line terminators. If the communication string is a parameter change, the response is
“ok” (or error code) followed by the line terminators. For this reason, it is not
recommended that multiple commands be stacked together into single strings as is
common with some other types of instruments. It is recommended that the coded
application send a single command in a string and follow immediately by reading the
response from the unit. Repeat this sequence for multiple commands.
IEEE 488.2 Common Command Format
The IEEE 488.2 Common Commands control and manage generic system functions
such as reset, configuration storage and identification. Common commands always
begin with the asterisk (*) character and may include parameters. The parameters are
separated from the command pneumonic by a space character. For example:
*RCL 1 <cr> <lf>
*IDN? <cr> <lf>
SCPI Command Keywords
SCPI commands control and set instrument specific functions such as setting the
pulsewidth, delay and period. SCPI commands have a hierarchical structure compose
of functional elements that include a header or keywords separated with a colon, data
parameters and terminators. For example:
SCPI Keyword Separator
A colon (:) must always separate one keyword from the next lower-level keyword. A
space must be used to separate the keyword header from the first parameter. If more
than one parameter is used, you must separate subsequent parameters with a comma.
SCPI Optional Keywords
Optional keywords and/or parameters appear in square brackets ([]) in the command
syntax. Note that the brackets are not part of the command and should not be sent to
the pulse generator. When sending a second level keyword without the optional
keyword, the pulse generator assumes that you intend to use the optional keyword and
responds as if it had been sent.
10-34
SCPI Parameter Types
The following parameter types are used:
<numeric value>
o Accepts all commonly used decimal representation of numbers including
optional signs, decimal points and scientific notation: 123, 123e2, -123, -
1.23e2, .123, 1.23e-2, 1.2300E-01.
<Boolean value>
o Represents a single binary condition that is either true or false. True is
represented by a 1 or ON; false is represented by a 0 or OFF. Queries
return 1 or 0.
<identifier>
o Selects from a finite number of predefined strings.
Error Codes
The unit responds to all commands with either:
ok<cr><lf> or ?<n><cr><lf> <cr> = carriage return, <lf> = line feed
Where "n" is one of the following error codes:
1 Incorrect prefix, i.e. no colon or * to start command.
2 Missing command keyword.
3 Invalid command keyword.
4 Missing parameter.
5 Invalid parameter.
6 Query only, command needs a question mark.
7 Invalid query, command does not have a query form.
8 Command unavailable in current system state.
Programming Examples
Example 1:
20 ms pulsewidth, 2.3 ms delay, internal trigger, single shot operation.
:PULSE0:MODE SING<cr><lf> sets system mode to single shot
:PULSE0:TRIG:MODE DIS<cr><lf> disables the external trigger
:PULSE1:WIDT 0.020<cr><lf> sets pulsewidth to 20 ms
:PULSE1:DELAY 0.0023<cr><lf> sets delay to 2.3 ms
:PULSE1:STATE ON<cr><lf> enables channel A
To start the pulses use either of the following commands:
:PULSE0:STATE ON<cr><lf> starts the pulses
:INST:STATE ON<cr><lf> alternate form to start pulses.
10-35
Example 2:
Keyword
Command
SubCommand
Parameter
Range
Notes
:INSTrument
Subsystem
:CATalog ?
Query only. Returns a comma-separated list of the
identifier strings for all channels. A two channel
instrument would return: T0, CHA, CHB.
:FULL ?
Query only. Returns a comma-separated list of the
identifier strings of all channels and their associated
number. A two channel instrument would return: T0, 0,
CHA, 1, CHB, 2.
:COMMands
? Query only. Returns an indented list of all SCPI
commands.
:NSELect
1-4
Selects a channel using the channel's numeric value.
All channel specific commands will refer to the selected
channel.
:SELect
T0 / CH[A-D]
Selects a channel using the channel's identifier string.
All subsequent channel specific commands will refer to
the selected channel.
:STATe
0/1 or
OFF/ON
Enables / Disables the output for all channels.
Command is the same as pressing the RUN/STOP
button.
:PRETest
0/1 or
OFF/ON
Runs the resistance pre-test for all pre-test enabled
channels.
:POSTtest
0/1 or
OFF/ON
Runs the resistance post-test for all pre-test enabled
channels.
20 ms pulsewidth, 100ms rate, 4 burst, internal trigger, burst mode operation.
:PULSE0:MODE BURST<cr><lf> sets system mode to burst
:PULSE0:RATE 0.1<cr><lf> sets the system rate to 100 ms
:PULSE0:TRIG:MODE DIS<cr><lf> disables the external trigger
:PULSE1:WIDT 0.020<cr><lf> sets pulsewidth to 20 ms
:PULSE1:STATE ON<cr><lf> enables channel A
To start the pulses use either of the following commands:
:PULSE0:STATE ON<cr><lf> starts the pulses
:INST:STATE ON<cr><lf> alternate form to start pulses.
9730 SCPI Command Summary
Instrument Commands
10-36
System Pulse Commands
Keyword
Command
SubCommand
Parameter
Range
Notes
:SPULse or
PULSe[0]
Subsystem. Contains commands to control the
output pulse generation. Commands without suffix
refer to the currently selected logical instrument.
See INSTrument subsystem.
:STATe 0/1 or
OFF/ON
Enables / Disables the output for all channels.
Command is the same as pressing the RUN/STOP
button.
:PERiod
1[us] – 200[s]
Sets the T0 period in seconds.
:MODe SINGle /
BURSt
Sets the T0 generation mode.
:FSYNc
DIS / T0 / CHA
/ CHB / etc.
Sets the pulse source for the front panel sync
output.
:RSYNc
DIS / T0 / CHA
/ CHB / etc.
Sets the pulse source for the rear panel sync
output.
:TRIGger
Contains the commands to define the Trigger
function.
:MODe
0/1 or OFF/ON
Sets Trigger Mode. Disable or TRIG (enable).
:TSOurce
FRONtpanel /
REARpanel
Switches the system trigger source between front
or rear panel inputs.
:EDGe
FALLing /
RISing
Selects which edge (rising or falling) to use as the
trigger signal.
:LEVel
0.2 – 15[V]
Sets the Trigger Threshold. Value is in volts, with a
resolution of .1 Volts.
:FENable
0/1 or OFF/ON
Enables/Disables the trigger pulse width filter.
:FILTer
.02 – 1000[us]
Sets the trigger minimum pulse width value in
microseconds.
:COUNt
Contains commands to manipulate the system shot
counter (T0 pulses)
:STATe
0/1 or OFF/ON
Enables/Disables the system shot counter.
:CLear
0
Clears the system shot counter.
:COUNt
?
Query Only. Returns the value of the system shot
counter.
:PRETest ?
Query Only: Returns the measured resistance
value for all channel with PreTest enabled in the
form of <n>:x.xx with each channel separated by a
single space (e.g. 1:1.99 2:2.00 4:2.01 if all
channels except channel 3 have PreTest Enabled)
:POSTtest ?
Query Only: Returns the measured resistance value
for all channel with PostTest enabled in the form of
<n>:xxx.xx with each channel separated by a single
space (e.g. 1:149.99 2:147.00 4:150.01 if all
channels except channel 3 have PostTest Enabled)
10-37
Channel Commands
Keyword
Command
SubCommand
Parameter
Range
Notes
:PULSe<n>
Contains commands to control the output pulse
generation. Valid suffix values depends on the number
of channels (ChA = 1, ChB = 2, etc). Command without
suffix refers to the currently selected logical instrument.
See INSTrument subsystem.
:TEMPerature
? Query Only. Reads the temperature of the selected
channel.
:STATe
0/1 or
OFF/ON
Enables/Disables the output pulse for selected channel.
:WIDTh
5[us] –
100[s]
Sets the width or duration of the output pulse. Setpoint
resolution is 100ns.
:DELay
0 – 30[s]
Sets the time from the start of the T0 period to the first
edge of the pulse. Resolution is 100 ns.
:BCOunter
2 - 250
Burst Counter. Sets the number of pulses to generate
when channel is in the BURST mode.
:AMPLitude
0.02 – 6[A]
Sets adjustable output level. Resolution is 1 mA.
:IADO
0 – 200[mA]
(+/-)
Sets dynamic current amplitude offset for the individual
channel. This value can be both positive and negative.
:PRETest
Subsystem. Contains commands for control and
monitoring of the channel pre-test parameters.
:MODe
0/1 or
OFF/ON
Enables/Disable the channel pre-test.
:MAXres
0.5 - 100
Sets the maximum valid resistance for pre-test in Ohms.
Resolution is 10 miliohms.
:MINres
0.1 - 100
Sets the minimum valid resistance for pre-test in Ohms.
Resolution is 10 miliohms.
:RESistance
?
Query Only. Returns the last measured resistance from
the pre-test.
:IMAX
3 -100[mA]
Sets the maximum test current for pre-test in miliamps.
Resolution is 100 us.
:POSTtest
Subsystem. Contains commands for control and
monitoring of the channel post-test parameters.
:TYPe
0,1,2
Sets the type of test to perform for the post test. Valid
parameters are: 0 – Standard, 1 – Outside,
2 – Outside Pre
:MODe
0/1 or
OFF/ON
Enables/Disable the channel post-test.
:MAXres
100 - 300
Sets the maximum valid resistance for post-test. (May be
disabled by writing a value of ‘0’). Resolution is 10
miliohms.
:MINres
3 - 100
Sets the minimum valid resistance for post-test in Ohms.
Resolution is 10 miliohms.
:RESistance
?
Query Only. Returns the last measured resistance from
the post-test.
:IMAX
3 – 100[mA]
Sets the maximum test current for post-test in miliamps.
Resolution is 100 us.
:ERRor
?
Query Only. Returns errors resulting from running the
pre or post tests on this channel. Refer to Testing Mode
Error Conditions for more information.
10-38
Display Commands
Keyword
Command
SubCommand
Parameter
Range
Notes
:DISPlay
Command to change the units’ display settings.
:MODe
0/1 or
OFF/ON
Enables/Disables automatic display update.
When on, front panel display is updated with serial
command parameter changes. Setting to off
decreases response time.
:UPDate
?
Query only. Forces update of display. Use when
“MODe” is off.
:BRIGhtness
1-8
Controls intensity of display. 1 is lowest intensity and
8 is full intensity.
10-39
System Commands
Keyword
Command
SubCommand
SubCommand
Parameter
Range
Notes
:SYSTem
:STATe
?
Query only. Returns ”1” if the system
is armed and/or generating pulses or
“0” if the system has been disarmed.
:BEEPer
Controls the audible beeper.
:STATe
0/1 or
OFF/ON
Enables/disables the beeper.
:VOLume
0-100
Sets the volume of the beeper. 0 is
off and100 is maximum volume
:COMMunicate
Controls the system communication
parameters
:SERial
Controls the serial parameters.
:BAUD
4800 / 9600 /
19200 /
38400 /
57600 /
115200
Sets the baud rate for both receiving
and transmitting using the RS232
port.
:USB
4800 / 9600 /
19200 /
38400 /
57600 /
115200
Sets the baud rate for
communication when using virtual
com ports for USB.
:ECHo
0/1 or
OFF/ON
Enables/Disables transmission of
characters received on the RS232
port.
:INTLCK
?
Query only: Returns the current state
of the Arm Switch/Interlock circuit.
:KLOCk
0/1 or
OFF/ON
Locks the keypad.
:VERSion
?
Query only. Returns SCPI version
number in the form: YYYY.V ex.
1999.0
:BVERsion
?
Query only. Returns the current
version of the bootloader.
:INFOrmation
?
Query Only. Returns model and
version information for the
instrument.
:NSID
?
Query Only. Returns the instrument
ID for use when upgrading firmware.
10-40
IEEE 488.2 Common Commands
Mnemonic
Command Name
Parameters
Notes
*IDN?
Identification Query
Queries the Pulse Generator
Identification. The ID will be in the
following format:
model#,serial#,version#
*CAT?
Command list Query
Query: Returns an indented list of
all SCPI commands.
*LBL
Label Command/Query
<string value>
Query Form returns the label of the
last saved or recalled configuration.
Command Form sets the label
string for the next "*sav" command.
String must be in double quotes, 14
characters max.
*RCL
Recall Command
0-12
Restores the state of the Pulse
Generator from a copy stored in
local nonvolatile memory (0 through
12 are valid memory bins).
*RST
Reset Command
Resets the Pulse Generator to the
default state.
*SAV
Save Command
1-12
Stores the current state of the
Pulse Generator in local nonvolatile
memory (1 through 12 are valid
memory bins).
*SER?
Serial # Query
?
Returns the serial # of the
Instrument.
*TRG
Trigger Command
Generates a software trigger pulse.
Operation is the same as receiving
an external trigger pulse.
Special Commands
The 9730 product line was design with user safety in mind. Since the 9730 may be used to
trigger or initiate various devices that can be harmful to the operator if not tested in a secure
location, features were added to the 9730 unit that will insure safe operation of the unit. Such
features are:
- Removable key switch that disables the channel outputs if turned to the standby position.
Key can also be removed to prevent unauthorized use.
- Remote interlock. A remote interlock can be tied to entry doors or DUT (device under
test) enclosures to ensure that the channels are disabled when the interlock is not
satisfied.
These features listed about will both disable the channels and not automatically re-enable the
channels without some kind of user intervention such as front panel buttons or sending remote
commands to the device. Since the DUT and the 9730 may reside in separate locations, this was
an important safety measure to incorporate.
10-41
Some customers have started using the 9730 device in high throughput production lines and have
requested that this safety feature be removed. Quantum Composers has added a bypass
feature to accommodate these customers under the condition that usage of this bypass
function is an acceptance agreement by the user that they are knowingly and willingly
bypassing a safety feature for the 9730 and accept any liability associated with bypassing
such feature.
Bypass Instructions
The safety feature can by bypassed by sending a command after the unit has been powered on.
This command can be sent along with any other initialization commands that may already being
sent on startup. This command is a static command such that when the unit is powered off, it will
return to the default safe operation until the initialization command is sent again. The commands
are as follows:
:SPUL:ARMD 0 (This will disable the feature of disabling the channels and not
automatically re-enabling them).
:SPUL:ARMD 1 (This will restore the safety feature of disabling the channels and not
automatically re-enabling them)
:SPUL:ARMD? (This is a query command to read the current state of the bypass
command)
Appendix A - Specifications
MIN
TYP
MAX
UNIT
I/O Configuration
Output Modules
2 4
Output Modes
Single & Burst
Control Modes
Internal Rate & External Trigger
Internal Rate
Generator
Rate
0.01
100,000
Hz
Resolution
100 ns
Accuracy
20 ns
Jitter 10
ns(RMS)
External Trigger
Inputs
Triggers
Front & Rear
Rate ****
1.2 X
Longest
Pulse
200
s
Insertion Delay
300 ns
Input Impedance
1
kΩ
Slope
Rising or Falling
Trigger Level
.2 15
V
Trigger Level
Resolution
100 mV
Trigger Filter
Filters out unwanted “glitch” or “runt”
Pulses
Filter Range
.02
1000
µs
Filter Resolution
20 ns
Timing
Pulse Width Range
**
5u 100
s
Width Accuracy
+/-0.1 %
Width Resolution
100 ns
Delay Range
0 30
s
Delay Accuracy
+/-0.1 %
Delay Resolution
100 ns
Period Range ***
200
s
Period Accuracy
+/-0.1 %
Period Resolution
100 ns
A-1
A-2
A-3
Output
Amplitude
0.02 6
A
Resolution
1
mA
Accuracy *
+/-0.5
+/-2
%
Rise Time *
1 3 10
us
Overshoot *
3 33
%
Slew Rate *
0.15
12
A/us
Compliance Voltage
19 22
V
Burst Count
2 250
Bursts
Monitors
Current Scale
0.5 A/V
Voltage Scale
0.2 V/V
Accuracy
+/-1.0
+/-2.5
%
Bandwidth
100
1000
kHz
Propagation Delay
1 3.5
us
Offset 2 mV
Resistance Measurement
Range
0.1 150
Ω
Resolution
.01 Ω
Accuracy .1 to 15Ω
+/-4 %
Accuracy 16 to 150Ω
+/-10 %
Measurement Current
3
40
100
mA
Current Resolution
100 µA
Current Accuracy
+/-4 %
Sync
Front and Rear
To, CHA-CHD
Safety
Remote Interlock
Shorting Interlock
Arm Key Switch
Removable Key Switch
Internal Error
Checking
Checks Control Circuit for Errors
A-4
Communications
RS232
4800
115200
115200
Baud
USB
Serial Bridge
Ethernet
Optional
Size
Rack Mount
19" x 10" 2U size rack mount
Electrical
AC Input Voltage
100
240
V
AC Input Frequency
50 60
Hz
AC Power 2Ch
320
W
AC Power 4Ch
640
W
* See data plots for more details. All Output data was taken with 50ft and 2ft of cable
with 1 ohm of load resistance unless otherwise specified.
** Maximum pulse width is limited by current amplitude. 1A can go up to 100s and
6A is limited to 300ms.
*** Period=k*Longest Channel Width; k=1.2 or highest current output amplitude,
whichever is larger.
**** Internal rate generator, external trigger, and manual triggers are internally
limited to 1.2(or the output current amplitude whichever is larger)X the largest set
pulse width up to a max of 200s.
A-5
Figure 1 Output Pulse
(1A, 1Ohm, 2’ Cable)
Figure 2 Output Pulse Rising Edge
(1A, 1Ohm, 2’ Cable)
Figure 3 Output Pulse
(1A, 1Ohm, 50’ Cable)
Figure 4 Output Pulse Rising Edge
(1A, 1Ohm, 50’ Cable)
The output monitors are optically isollated and can
have 1us to 3us of transmision delay, see Figure 2.
Legend:
Yellow – Current Probe Measurement
Blue – Voltage Monitor Measurement
Red – Current Monitor Measurement
Yellow –.1V/A 6A @ .1 scale = 600mV
Blue –.2V/V 1 Ohm @ 6A & .2 scale = 1.2V
Red –.5V/A 6A @ .5 scale = 3V
The current measurement used for the output
monitor signal is taken before the output and its
compensation circuitry. An RC snubber circuit is
used to compensate for the inductive loading effects
caused by long cable lengths. The output lags the
current monitor because the compensation takes
some of the output inrush current, see Figure 4.
A-6
Measured Current (A)
Set Current (A)
Inductive
.51 Ohm
Inductive 1
ohm
Inductive 2
Ohm
Inductive 3
Ohm
Output Error (%)
Set Current (A)
Inductive
.51 Ohm
Inductive 1
Ohm
Inductive 2
Ohm
Inductive 3
Ohm
Rise Time (us)
Set Current (A)
Inductive
.51 Ohm
Inductive 1
Ohm
Inductive 2
Ohm
Inductive 3
Ohm
Overshoot (%)
Set Current (A)
Inductive
.51 Ohm
Inductive 1
Ohm
Inductive 2
Ohm
Inductive 3
Ohm
Figure 5 Linearity
Figure 6 Output Error
Figure 7 Rise Time
Figure 8 Overshoot
Figure 9 Slew Rate
Figure 10 Voltage Monitor Error
A-7
Slew Rate (A/us)
Set Current (A)
Inductive
.51 Ohm
Inductive 1
Ohm
Inductive 2
Ohm
Inductive 3
Ohm
Voltage Monitor Error (%)
Set Current (A)
Inductive
.51 Ohm
Inductive 1
Ohm
Inductive 2
Ohm
Inductive 3
Ohm
Current Monitor Error (%)
Set Current (A)
Inductive
.51 Ohm
Inductive 1
Ohm
Inductive 2
Ohm
Inductive 3
Ohm
Width & Period (s)
Set Current (A)
Max Pulse
Width
Min Period
Figure 11 Current Monitor Error
Figure 12 Limited Pulse Width &
Period
A-8
The output circuitry is designed to handle 30W of power and is firmware limited to prevent overdriving the
2
3
1
A
Isolation
2
3
1
A
Isolation
.25
ISO+24VDC
2
3
1
A
2
3
1
A
15
180
Bottom
Current Output
Bottom
Pulse / Res Measurement Switch
ARM & Enable Output Relay
Pulse Current Voltage
Control Circuit Voltage Enable
Test Current Voltage
Top
Voltage Measurement
Top
G
Voltage Monitor .2V/V
G
Current Monitor .5V/A
Current Measurement for Resistance
Voltage Measurement for Resistance
Figure 13 Output Diagram
output circuitry. Figure 12 shows the maximum settable pulse width and minimum settable period at max
pulse width. The minimum period is set to 5 times the set pulse width until it reaches the longest settable
period of 200s.
Figure 13 is a basic diagram of the output control circuitry for both the current pulse output and the
resistance measurement output. The current pulse side has an opamp that controls a high side switching
mosfet and receives feedback from a high side current measuring differential amplifier. The control circuit
has error checks to measure the controlling amplifiers output voltage, mosfets output voltage, and feedback
voltage. If there are any errors with these voltages the output is not allowed to be turned on and the system
will display an error.
The resistance measurement side uses a 4-Wire technique where a known current is sent to the load and the
voltage is measured to give resistance measurement. The current source consists of a high side opamp for
control and output and a high side current measuring differential amplifier as the feedback.
Appendix B - Safety Symbols
Safety Marking Symbols
Technical specifications including electrical ratings and weight are included within
the manual. See the Table of Contents to locate the specifications and other
product information. The following classifications are standard across all QC
products:
Indoor use only
Ordinary Protection: This product is NOT protected against the harmful
ingress of moisture
Class 1 Equipment (grounded type)
Main supply voltage fluctuations are not to exceed 10% of the nominal
supply voltage
Pollution Degree 2
Installation (overvoltage) Category II for transient over-voltages
Maximum Relative Humidity: <80% RH, non-condensing
Operating temperature range of 0 to 40 degrees Celsius
Storage of transportation temperature of -40 to 70 degrees Celsius
Maximum altitude 3000m (9843 ft.)
This equipment is suitable for continuous operation.
This section provides a description of the safety marking symbols that appear on
the instrument. These symbols provide information about potentially dangerous
situations which can result in death, injury, or damage to the instrument and
other components.
B-1
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