ASSOCIATED RESEARCH SC6540 Modular Multiplexer User Guide
- June 3, 2024
- ASSOCIATED RESEARCH
Table of Contents
SC6540 Modular Multiplexer
**User Guide
**
SAFETY CHECKLIST
Survey the test station. Make sure it is safe & orderly.
Always keep unqualified/unauthorized personnel away from the test area.
Familiarize yourself with safety protocols in the event of a problem.
Exercise caution and never touch products or connections during a test.
Train operators. Never touch clips directly and always connect the return lead
first.
You should always know when a test is being performed.
WARNING : THIS GUIDE WAS CREATED FOR OPERATORS HAVING SOME FAMILIARITY WITH ELECTRICAL SAFETY TESTING. AN ELECTRICAL SAFETY TESTER PRODUCES VOLTAGES AND CURRENTS THAT CAN CAUSE HARMFUL OR FATAL ELECTRIC SHOCKS. TO PREVENT ACCIDENTAL INJURY OR DEATH, THESE SAFETY PROCEDURES MUST BE STRICTLY OBSERVED WHEN HANDLING AND USING A TEST INSTRUMENT. CONTACT US AT [email protected] FOR MORE INFO ON HOW TO GET TRAINED IN ELECTRICAL SAFETY TESTING.
FRONT PANEL CONTROLS
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POWER INDICATOR : Indicates the power has been turned ON. For an SC6540 Main, this lights up when the power switch on the rear panel of the unit is turned ON. For an SC6540 Secondary, this lights up when the power switch on the host instrument is turned ON.
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MODULE TYPE INDICATOR: These LEDs indicate the type of module that is installed for the corresponding module slot. If the red LED illuminates, it indicates that the installed module is a High Voltage/ Continuity module. If the green LED illuminates, it indicates that the installed module is a Ground Bond module.
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MODULE B CHANNEL STATUS INDICATORS: These LEDs indicate the status of each individual channel on Module B. If the red LED illuminates, it indicates a High Voltage/Continuity Current/Ground Bond channel.
If the green LED illuminates, it indicates a Return channel. -
MODULE A CHANNEL STATUS INDICATORS: These LEDs indicate the status of each individual channel on Module A. If the red LED illuminates, it indicates a High Voltage/Continuity Current/Ground Bond channel.
If the green LED illuminates, it indicates a Return channel.
BACK PANEL CONTROLS
(Secondary Scanner, HGS, Back Panel)
- SCANNER BUS INPUT: Interconnect port for the control cable between the SC6540 Secondary and an automated Associated Research electrical safety tester or SC6540 Main scanner.
- SAFETY GROUND CONNECTOR: Must be connected to a known good ground system to ensure operator safety.
- HIGH VOLTAGE INPUT: Connector for the input of high voltage from the host instrument.
- GROUND BOND OUTPUTS: Output channels for application of high current for Ground Bond tests. These outputs are only available on SC6540 Scanners that are configured with a Ground Bond Module.
- SCANNER BUS OUTPUT: Interconnect port for the control cable to another SC6540 in multiple SC6540 systems.
- ADDRESS SWITCHES: 8-pin DIP switch used to address the modules in an SC6540 Secondary or used to configure the address of an SC6540 Main.
- CURRENT INPUT JACK: Connector used to attach the high current input lead or Continuity Current input lead from the host instrument.
- RETURN INPUT: Connector for the return of the host instrument with the SC6540. This connection provides the Return Current path for the High Voltage, Ground Bond Current, and Continuity Current.
- HIGH VOLTAGE OUTPUTS: Eight individual output channels for High Voltage tests and Continuity tests. These outputs are only available on SC6540 Scanners that are configured with a High Voltage Module.
(Main Scanner,
HGM, Back Panel)
- BUS INTERFACE: Standard connector for interconnection to the USB/RS-232 Bus interface. Optional IEEE-488 interface or Ethernet Interface may be substituted for the USB/RS-232.
- FUSE RECEPTACLE: To change the fuse, unplug the power (mains) cord and turn the fuse receptacle counter-clockwise. The fuse compartment will be exposed. Replace the fuse with one of the proper ratings.
- INPUT POWER RECEPTACLE: Standard IEC 320 connector for a standard NEMA style line power (mains) cord.
- POWER SWITCH: Rocker-style power switch with international ON ( | ) and OFF (0) markings.
- INPUT VOLTAGE SWITCH: Line voltage selection is set by the position of the switch. In the “left” position it is set for 110–120 volt operation, in the “right” position it is set for 220–240 volt operation.
SCANNING CONFIGURATIONS
The SC6540 is available in two basic configurations according to how it sends
and/or receives data: a Main and a Secondary. The Main Scanner can only be
controlled remotely via a PC. A secondary Scanner can be controlled locally by
an Associated Research testing instrument or by the Main Scanner.
MAIN
The Main Scanner communicates directly with a PC via a USB/RS-232 (standard),
GPIB interface, or Ethernet. This model receives control information from a PC
and can also deliver instructions to up to four additional Secondary Scanners.
The Main Scanner can be distinguished by its power module located on the upper
left side of the rear panel.
SECONDARY
A Secondary Scanner only receives data. The data that the Secondary receives
can come from the Main Scanner (remote control) or directly from an Associated
Research instrument (local control). A Secondary Scanner can be distinguished
by its input control bus located on the upper left side of the rear
panel.
BACK PANEL CONFIGURATIONS
The modular design allows for a variety of configurations. In addition to Main or Secondary configurations, the scanners can also be set up with the following configurations: 8 or 16 High Voltage testing channels, 8 High Voltage and Ground Bond testing channels, and 8 or 16 Ground Bond testing channels.
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Model SC6540 HNM
8-Channel High Voltage Scanner| Model SC6540 HHM
16-Channel High Voltage Scanner
| 
Model SC6540 HGM
8 Channel High Current Scanner
8-Channel High Voltage Scanner| Model SC6540 GNM
8 Channel High Current Scanner
| Model SC6540 GGM
16 Channel High Current Scanner
*Also available in secondary configurations
The different configurations (shown right) are indicated by the following
alpha designators.
M = Main Scanner
H = 8 High Voltage Channels
HH = 16 High Voltage Channels
G = 8 Ground Bond Channels
GG = 16 Ground Bond Channels
N = Empty Module
S = Secondary
CONNECTIONS
WARNING : UNDER CERTAIN CONDITIONS HIGH VOLTAGE CAN APPEAR ON THE CABINET
OF THE SC6540. THE GROUND TERMINAL ON THE REAR PANEL OF THE SC6540 MUST BE
CONNECTED TO A GOOD EARTH GROUND TO ENSURE OPERATOR SAFETY.
CAUTION : MULTIPLE HIGH VOLTAGE OR CONTINUITY CURRENT CHANNELS CAN BE SET
TO ACTIVATE SIMULTANEOUSLY. HOWEVER, WHEN CONFIGURED THIS WAY THE SC6540
CANNOT PROVIDE AN INDICATION OF WHICH OUTPUT DETECTED FAILURE. THEREFORE, EACH
ITEM
OR TEST POINT WOULD HAVE TO BE RE-TESTED INDIVIDUALLY IF THE OPERATOR NEEDS TO
DETERMINE THE EXACT POINT OF FAILURE.
OPERATING THE SC6540 WITH HYPOTULTRA ®
OPERATING THE SC6540 WITH HYPOTULTRA (Continued)
SETUP
The SC6540 Scanner channels can be set as High (H) for High Voltage or
Continuity testing output, Low (L) for the Return connection, or Open (O) for
of.
Channel setup is done using the OMNIA II menu or automation software. For
information on the SC6540 setup through the WithStand ® automation software,
refer to the WithStand platform home page: https://withstand.ikonixusa.com.
The following setup procedure will refer to set up through the HypotULTRA
setup menu: from the Test Parameter Review screen (ACW, DCW, CONT, or IR) you
can
scroll to find the Scanner settings. Below is an example of the ACW Withstand
Test Parameter Review screen.
The above images show a HypotULTRA with 8 Internal Scanner channels and 8 external channels. The “Int Scanner” parameter in the menu pertains to an internal 8-channel Scanner and the “ExtScanner1” parameter pertains to an 8-channel high voltage SC6540 Scanner.
Note : Each Scanner port on the rear panel of the HypotULTRA can only
control 8 channels of each type (HV or HC) at a time, which makes it possible
to control a maximum total of 16 possible external Scanner channels. To
control more than 16 external channels, automation software must be used along
with an SC6540 Main and a PC.
To set the Scanner channels use the back (<) and forward (>) arrows and set
the channels to High (H), Low (L) or Open (O). Use the enter key ( ) to save
the values and move on to the next test parameter.
H (High) – High voltage output channel for a high voltage test or current
output for a continuity test.
L (Low) – High voltage return channel for a high voltage test or a current
return for a continuity test.
O (Open) – Channel is neither an output nor a return.
OPERATION
Once the SC6540 is incorporated into a test system, it will act as an
extension of the HypotULTRA. The outputs will only activate while a test is
being performed and will deactivate when the test is not running. When a
failure is detected, the test will stop, the output will be deactivated and
the HypotULTRA will give a visual and audible indication of failure. If steps
were connected in sequence, the HypotULTRA will indicate a failure once it
reaches the output that is connected to the defective device. The SC6540 will
not continue to test the other outputs until the RESET button is pressed, the
defective item is removed, and the TEST switch is pressed once again. The
SC6540 will then begin to test from the first step in the program.
Secondary Scanner Power
Once the SC6540 secondary is connected to the HypotULTRA, the “power on” LED
will light up as soon as the power switch of the HypotULTRA is turned on.
Main Scanner Power
The SC6540 main is powered on by flipping the switch on the rear panel of the
unit to the ON position. The SC6540 Scanner channels will activate when the
TEST signal is sent via a PC.
LED Indicators
During a test, individual LED indicators for each output indicate whether the
output is set as High, Low, or Open. If the channel is set as a High Voltage
Output or Continuity Current Output, the red LED will light up. If the channel
is set as Return, the green LED will light up. If the High Voltage channel is
set to Open, no LED will light up.
OPERATING THE SC6540 WITH OMNIA II ® 8204
GROUND BOND CONNECTIONS
The rear panel of the SC6540 can include up to 16 output terminals for Ground
Bond testing if this configuration is selected at the time of purchase. *We
recommend using standard 12 gauge wire for operation at 30 amps, and 10 gauge
wire for 40 amps.
The wires should be attached using the hook-style crimp lugs provided, to
minimize connection resistance. The Kelvin connection of an Associated
Research Ground Bond tester will end at the Ground Bond input terminals of the
SC6540 Scanner. For this reason, the wire lengths going from the SC6540 High
Current output and the High Current Return should be kept as short as possible
to limit the effect of test lead resistance.
GROUND BOND CONNECTIONS
OPERATING THE SC6540 WITH OMNIA II 8204 (Continued)
SETUP
OPERATING THE SC6540 WITH OMNIA II 8204 (Continued)
The SC6540 Scanner channels can be set as High (H) for High Voltage or
Continuity testing output, Low (L) for the Return connection, or Open (O) for
of. Channel setup is done using the OMNIA II menu or automation software. For
information on the SC65409 setup through the WithStand ® automation software,
refer to the WithStand platform home page: https://withstand.ikonixusa.com.
The following setup procedure will refer to set up through the OMNIA II setup
menu: in the Setup Test Parameters screen (ACW, DCW, IR, Ground Bond, or
Continuity) you will find the Scanner settings. Below is an example of the ACW
Withstand Test Setup Menu.
The above menu shows an OMNIA II connected to a 16-channel Scanner configuration. This configuration can be one external 16-channel Scanner (8 high voltage ports and 8 high current ports) or two external 8-channel Scanners. With two external 8-channel Scanners, one Scanner should be connected to the Scanner 1 connector on the rear panel of OMNIA II and the second Scanner should be connected to the Scanner 2 connector on the rear panel of OMNIA II.
Note : Each Scanner port on the rear panel of the OMNIA II can only
control 8 channels of each type (HV or HC) at a time, which makes it possible
to control a maximum total of 16 possible external Scanner channels. To
control more than 16 external channels, automation software must be used along
with an SC6540 Main and a PC.
Navigate the Test Setup screen using the arrow keys, located on the OMNIA II
keypad, until you reach the Scanner Setup parameters. The Scanner channels can
be set using the “Scanner Select” soft key located to the right of the LCD
display.
The Scanner channels can be set to one of three different states:
H (High) – High voltage output channel for a High Voltage test or current
output for a Ground Bond or Continuity test.
L (Low) – High voltage return channel for a High Voltage test or a current
return for a Ground Bond or Continuity test.
O (Open) – Channel is neither an output nor a return.
OPERATION
OPERATING THE SC6540 WITH OMNIA II 8204 (Continued)
Once the SC6540 is incorporated into a test system, it will act as an
extension of the OMNIA II. The outputs will only activate while a test is
being performed and will deactivate when the test is not running. When a
failure is detected, the test will stop, the output will be deactivated and
the OMNIA II will give a visual and audible indication of failure. If steps
were connected in sequence, the OMNIA II will indicate a failure once it
reaches the output that is connected to the defective device. The SC6540 will
not continue to test the other outputs until the RESET button is pressed, the
defective item is removed, and the TEST switch is pressed once again. The
SC6540 will then begin to test from the first step in the program.
Secondary Scanner Power
Once the SC6540 Secondary is connected to the OMNIA II, the “power on” LED
will light as soon as the power switch of the OMNIA II is turned on.
Main Scanner Power
The SC6540 Main is powered on by flipping the switch on the rear panel of the
unit to the ON position.
LED Indicators
The two leftmost LEDs for Module A and Module B indicate the type of module
that has been installed. If the Red LED is illuminated there is a High Voltage
module present. If the Green LED is illuminated there is a Ground Bond module
present. During a test, individual LED indicators for each output indicate
whether the output is set as High, Low, or Open. If the channel is set as a
High Voltage Output, Ground Bond Output, or Continuity Current Output the red
LED will light up. If the channel is set as Return, the green LED will light
up. If the High Voltage channel is set to Open, no LED will light up.
SETUP
OPERATING THE SC6540 WITH LINECHEK 620L
This option allows the 620L to be connected to an Associated Research SC6540 Modular Scanning Matrix, model HN. With this option installed and a Scanner connected to the Scanner control bus on the rear of the instrument, the 620L and accompanying Scanner can be used for multi-point Line Leakage testing. The 620L will provide power and all necessary signals to the corresponding Scanner inputs.
In order to connect the Scanner to the 620L, four connections must be made.
Connect the Scanner control bus from the Scanner output on the rear panel of
the 620L to the input on the rear panel of the Scanner using the included
communications cable (38592). Connect the Probe-HI output on the panel of the
instrument to the Current input on the panel of the Scanner. Connect the
Probe-LO output on the panel of the instrument to the Return input on the
panel of the Scanner. Finally, plug the DUT into the universal adaptor box.
OPERATION
OPERATING THE SC6540 WITH LINECHEK 620L (Continued)
Within the Line Leakage Edit screen on the 620L, the “Scanner Select”
parameter (soft key) will automatically appear when the highlighted cursor
moves to the Scanner Setup area using the Up and Down Arrow keys or Enter
keys. Press the “Scanner Select” soft key to toggle the Scanner channel
between H (high), L (low), or O (off). Press the Left and Right Arrow keys to
move the highlighted cursor to the corresponding Scanner channel. Setting a
channel to H will connect the Probe-HI of the 620L to the corresponding
Scanner channel. Setting a channel to L will connect the Probe-LO of the 620L
to the corresponding Scanner channel.
The operator may set the Scanner on a test-by-test basis. For example, for test step 01, the operator may set each of the Scanner channels in a particular configuration. For test step 02, the operator may wish to change the configuration of each Scanner channel.
Experts In Electrical Safety Compliance. ™
For additional information about these and other
key features of the SC6540, please consult the full Operation and Service
Manual or call us toll-free 1-800-858-TEST (8378) or
+1-847-367-4077
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