HVM High Voltage Switch Matrix User`s Manual - mb
Contents
1. TECHNOLOGIES HVM High Voltage Switch Matrix m3 HVMO812 ma High Voltage Swiich Matrix mou Queu Goe Gpen Lod mee Meat Toet Canso Ok 1 Ger Oe AR AR EREN User s Manual Safety Precautions This product is indented for use by qualified personnel only who are familiar with the safety precautions required to avoid possible injury The switch matrix can handle high voltages up to 3000 V and uses 115 230 V AC mains voltage for operation Only use high quality cables free from any defects Ensure the power cable is connected to a grounded mains outlet Do not disconnect cables or test fixtures when voltages are applied Remind that voltages may be applied even if the measurement is paused If the switch matrix is used with voltages higher than 42 V DC no conductive parts of the circuit and the test fixture may be exposed and must be covered and protected by a safety interlock switch Refer to the voltage source s documentation to learn how to connect a safety interlock switch It is highly recommended to switch the relays without voltage or current applied This is referred as cold switching First set all required connections turn on the voltage sources and do all measurements then turn off all voltages again and finally open the relays Do no use the switch matrix with unlimited voltage sources or power supplies A short may destroy the relays as they can only handle limited voltage and current Note that some voltage sources c2. ce BBM Break before make MBBR Make before break SYSTem ERRor Errors are saved in a temporary storage This command queries the first error in the list The error is then removed from the list The error list is also cleared on power on and when executing the RST command Response number description Example Response SYST ERR 100 Command error SYST ERR 220 Parameter error SYST ERR 0 No error Specifications Parameter Value Conditions Isolation Voltage 3000 V 1 Between any input or output and any other input or output or ground 2 Input or output to be tested is populated with high voltage connector 3 All relays connected to this input or output are opened Isolation Voltage 500 V Force and Sense if available are usually connected between Force Guard is assumed to be driven at the same voltage Sense and Guard of the same input or output Carry Current 2A Maximum current for indefinite periods of time between any input or output connector while connection is closed Leakage Current lt 30 pA node 1 Test voltage 3 kV 2 All matrix relays connected to other inputs and outputs contribute to the isolation resistance and count as one node 3 Leakage is measured between any input or output and any other input or output or ground 4 Input or output to be tested is assumed to be populated with guarded high voltage connector Unguarded connectors may show up to 20 times h
3. ified in the list relay list ciio ciioof c Card number 1 ii Input port 1 6 00 Output port 1 12 Example ROUT OPEN LIST 10101 10102 ROUT OPEN LIST relay_list Queries the open status of the relays specified in the list relay list ciio ciioof c Card number 1 ii Input port 1 6 00 Output port 1 12 Response for each relay delimited by 1 Relay is opened 0 Relay is closed Response 1 0 1 0 Example Response ROUT OPEN ALL ROUT CLOS LIST 10101 10201 ROUT OPEN LIST 10101 ROUT OPEN LIST 10101 10102 10103 Onl ROUT FUNCtion config Sets the configuration mode config ACONfig Auto config mode NCONfig Normal config mode This command is ignored ROUT FUNCtion Queries the configuration mode ROUT CONNection RULE ALL rule Sets the connection rule rule FREE An input port can connect to multiple output ports SROUte An input port can connect to one output port only ROUT CONNection RULE 0 Queries the connection rule Response FREE An input port can connect to multiple output ports SROUte An input port can connect to one output port only ROUT CONNection SEQuence ALL sequence Sets the connection sequence sequence NSEQ No sequence BBM Break before make MBBR Make before break ROUT CONNection SEQuence 0 Queries the connection sequence Response NSEQ No sequen
4. igher leakage current 5 Triple switch relays Force Sense Guard roughly double the leakage current Isolation Resistance gt 10 Q node All matrix relays connected to other inputs and outputs contribute to the isolation resistance and count as one node Switching Voltage 1000 V 1 Voltage across one relay contact before the contact is closed or after it is opened 2 It is recommended to open or close relays without voltage or current applied cold switching Switching Current 1 Current through one relay contact before it is opened or after it is closed 2 It is recommended to open or close relays without voltage or current applied cold switching Switching Power 30 W 1 Voltage across one relay contact before the contact is closed or after it is opened times then current through the same contact before it is opened or after it is closed 2 It is recommended to open or close relays without voltage or current applied cold switching Contact Resistance lt 100 mQ Resistance between any connected input and output Contact Capacitance 5 pF node 1 Capacitance between any input to any output or any input and output to ground with relays unconnected 2 The Guard is assumed to be connected and actively driven during the measurement 2 All matrix relays connected to other inputs and outputs contribute to the capacitance and count as one n
5. imal binary octal and hexadecimal e g 105 decimal B1101001 binary Q151 octal H69 hexadecimal Commands IDN Queries identification string Response manufacturer model number serial number hardware version software version Example Response IDN MB TECHNOLOGIES HVM0612 10009 3 1 3 0 54 OPC Query the Operation Complete Status Response 0 Operations pending 1 Operations complete Example Response OPC 1 RST Resets the instrument and opens all relays TST Starts execution of the internal self test TST Queries the result of the internal self test Response 0 Self test failed 1 Self test passed Example Response TST OPC 0 OPC 0 OPC 1 TST 1 ROUT CLOSe LIST relay_list Closes the relays specified in the list relay list ciio ciioof c Card number 1 ii Input port 1 6 00 Output port 1 12 Example ROUT CLOS LIST 10101 10102 10201 10202 ROUT CLOSe LIST relay list Queries the close status of the relays specified in the list relay list ciio ciioof c Card number 1 ii Input port 1 6 00 Output port 1 12 Response for each relay delimited by 1 Relay is closed 0 Relay is opened Example ROUT OPEN ALL ROUT CLOS LIST 10101 10201 ROUT CLOS LIST 10101 10102 10201 10202 ROUT OPEN CARD ALL Opens all relays ROUT OPEN LIST relay_list Opens the relays spec
6. ode 3 Triple switch relays Force Sense contain 2 contacts which doubles the capacitance Switching Time 5 ms Time to open or close a contact without communication overhead Contact TECHNOLOGIES mb Technologies GmbH Dreikreuzweg 8 8289 Fuerstenfeld Austria T 43 664 73522586 gt lt office mb technologies com www mb technologies com
7. status The relay is switched immediately This is also shown on the matrix display Please note a maximum of 24 relays can be closed at any time It is highly recommended to use cold switching i e do not switch relays while voltage or current applied see Safety Precautions If hot switching is required ensure the voltage and current never exceeds the maximum allowed value even in case of possible shorts see Specifications The Save button stores the current matrix configuration You can choose one of ten memory slots by pressing a number key and Ok The Load button restores a previously saved setup The memory is retained when power is turned off The Reset button opens all relays When pressing Reset twice the internal memory can be cleared If the switch is controlled by software it is in Remote mode and the keyboard is locked This is shown by the Remote indicator The software should release the equipment after use The switch can also be released manually by pressing the Local key twice The display is turned off after 10 minutes Press any key to turn it on again Command Reference Syntax A command is build from keywords parameters and delimiters UPPERCASE Required letters for a keyword lowercase Optional letters for a keyword italic Parameter Delimiter Square brackets are used to enclose optional parameters keywords Parameters Numerical parameters are accepted in dec
8. uring this time The display shows the model the serial number and the hardware and firmware versions The power on self test does not include the relay matrix This test can be invoked either manually using the Test button or by software see Command Reference Disconnect all measurement cables before starting the relay test Even without voltages applied the larger capacitance of connected cables may fail the test If Force and Sense is connected by external cabling the test will fail Any problem found by these tests is shown on the display Please contact mb Technologies for further instructions Setup Press the Setup button to select the communication interface and options Please note only one communication interface is active at any time Select the interface using the numerical keys then proceed with Ok then set the options for this interface Display and Keyboard In most cases the switch matrix will be controlled by software using the communication interface The display and keyboard us useful for debugging purposes The matrix display shows the relay status all the time A lit indicates a matrix connection between the input and output shown To operate the switch manually use the front panel display and keyboard Press the Input or Output button then enter a number to select an individual relay You can also choose a full row or column with input or output 0 Press Close or Open to change its
9. urrent limiters may not be sufficiently fast to protect the switch matrix A series resistor may help in this case Do not operate this equipment without all covers in place If you need to open the equipment disconnect all cables and wait one minute to allow capacitors to discharge If installed in a rack or cabinet the switch matrix should be screwed on to prevent falling out Exercise extreme caution when a shock hazard is present Lethal voltages may be present on cable connectors jacks or test fixtures A good safety practice is to expect that hazardous voltage is present in any unknown circuit before measuring Installation The switch matrix comes with connectors equipped to the users requirements These connectors may be of different type While the relay matrix can always handle high voltage some connectors may be rated much lower voltage e g BNC Triaxial connectors are rated 500 V only It is the user s responsibility only to use voltages on inputs and outputs which can be handled by the connectors Depending on the interface options installed GPIB USB LAN RS232 or RS485 connectors may be available The interface to be used is selected using the front panel see Setup section below For safety and noise reasons a separate ground connection is recommended using the Ground tab Self Test After powered on the equipment executes a series of internal tests This takes about 20 seconds The device cannot be accessed d
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