Table of Contents
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USER MANUAL
Fault Insertion Unit, 16 CH, 8 Amps and 8 CH, 30 Amps
SLSC-12251
SLSC-12252
8 Ch FIU
16 Ch FIU
100 Vpk, 8 Arms MAX
100 Vpk, 30 Arms MAX
Contents
Overview................................................................................................................................... 2
Safety Guidelines...................................................................................................................... 3
Safety Voltages..................................................................................................................3
EMC Guidelines........................................................................................................................4
Environmental Characteristics.................................................................................................. 4
Installing the SLSC-12251/12252 and RTI-12306................................................................... 5
Getting Started with Software...................................................................................................6
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Table of Contents
Related Manuals for National Instruments SLSC-12251
Summary of Contents for National Instruments SLSC-12251
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Page 1: Table Of Contents
SLSC-12252 8 Ch FIU 16 Ch FIU 100 Vpk, 8 Arms MAX 100 Vpk, 30 Arms MAX Contents Overview........................... 2 Safety Guidelines........................3 Safety Voltages........................3 EMC Guidelines........................4 Environmental Characteristics....................4 Installing the SLSC-12251/12252 and RTI-12306..............5 Getting Started with Software....................6... -
Page 2: Overview
Terminal Blocks......................19 Overview This document contains information about the SLSC-12251 (16 channel, 8 amperes) and SLSC-12252 (8 channel, 30 amperes) Fault Insertion Units (FIU). The SLSC-12251 and SLSC-12252 are switch matrices with current monitoring, which allows for connections from each channel to any of the following: Bus A, Bus B, a load, or a paired channel. -
Page 3: Safety Guidelines
920 V peak Caution If you are using the SLSC-12251/12252 with voltages greater than 60 , the SLSC chassis must be made touch safe by panel mounting it in a closed rack to prevent user access to the rear of the device. -
Page 4: Emc Guidelines
The chassis internal ambient temperature may reach 85 °C with all slots at the maximum allowed power dissipation. In the SLSC-12001 chassis this corresponds to an external ambient of 40 °C. 4 | ni.com | SLSC-12251 and SLSC-12252 User Manual... -
Page 5: Installing The Slsc-12251/12252 And Rti-12306
The SLSC chassis and the SLSC-12251/12252 do not support hot plug-in. The entire chassis must be powered off when a module is inserted or removed. Loosen the screws on the upper rear panel of the chassis. SLSC-12251 and SLSC-12252 User Manual | © National Instruments | 5... -
Page 6: Getting Started With Software
Position the RTI-12306 at the desired slot and insert the securing screws, but do not fully tighten them. Insert an SLSC-12251/12252 module into the same slot as its corresponding RTI-12306 while firmly holding the RTI-12306 in place until the RTI-12306 is firmly connected to the module. - Page 7 LOAD n + 1 DUT n + 1 (1, 3, 5, 7...) Bus A Bus B Note All switches are open during power-up and after the module is reset. SLSC-12251 and SLSC-12252 User Manual | © National Instruments | 7...
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Page 8: Properties
Bus High Current Limit for longer than its delay time. NI.FIU.BoardFault.OvercurrentOnBusB Boolean Device True when Bus B exceeds the Bus High Current Limit for longer than its delay time. 8 | ni.com | SLSC-12251 and SLSC-12252 User Manual... - Page 9 Time, the next recommended calibration date of the device. NI.FIU.CurrentTransducer.Gain Double Physical The gain used to calculate the Channel: current from the current Channel_n transducer, based on the voltage input. SLSC-12251 and SLSC-12252 User Manual | © National Instruments | 9...
- Page 10 Update command is required for the change to take place. Enumeration: 0 : "IndependentChannels" : Channel n is not connected to n + 1 1 : "ConnectedChannels" : Channel n is connected to n + 1 10 | ni.com | SLSC-12251 and SLSC-12252 User Manual...
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Page 11: Fault Monitoring And Identification
Any attempt to change a switch's state after a fault will error out if the module is not reset first. Poll the property during normal operation to check if a fault NI.FIU.BoardFault condition exists. SLSC-12251 and SLSC-12252 User Manual | © National Instruments | 11... -
Page 12: Measuring The Current
For temperature measurement, read the property NI.FIU.TemperatureSensorN where N = 0,1,2,3. The physical locations of the temperature sensors are as follows: Figure 3. Temperature Sensor Locations on SLSC-12251 and SLSC-12252 Boards 12 | ni.com | SLSC-12251 and SLSC-12252 User Manual... -
Page 13: Switch Control
Use one of the below paths to calibrate the device: • DUTn to Bus A • DUTn to Bus B • DUTn to LOADn Close the chosen channel and provide a known DC current through that path. SLSC-12251 and SLSC-12252 User Manual | © National Instruments | 13... -
Page 14: Driving Inductive Loads
Averaging data in multiples of 0.1 seconds helps remove 50 Hz or 60 Hz noise. Repeat the previous step at five or more DC current points from ±8 A on the SLSC-12251 and ±30 A on the SLSC-12252. Repeat Step 3 and Step 4 for all channels. - Page 15 For example, IL = 9.65 A with a 100 mH inductor. The FET switch will be damaged if more than this current is actively interrupted while driving this inductor. SLSC-12251 and SLSC-12252 User Manual | © National Instruments | 15...
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Page 16: Pinouts
Ch6_LOAD Ch0_LOAD Ch5_LOAD Ch4_LOAD Ch1_LOAD Ch3_LOAD Ch2_LOAD Note The input to each channel is Chx_DUT. The output to each channel is Chx_LOAD. NC indicates not connected and should not be used. 16 | ni.com | SLSC-12251 and SLSC-12252 User Manual... - Page 17 Ch4_LOAD Ch2_LOAD Ch3_LOAD Ch0_LOAD Ch1_LOAD Note The input to each channel is Chx_DUT. The output to each channel is Chx_LOAD. NC indicates not connected and should not be used. SLSC-12251 and SLSC-12252 User Manual | © National Instruments | 17...
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Page 18: Accessories
Accessories RTI-12306 The RTI-12306 is the required rear transition interface for use with SLSC-12251 and SLSC-12252 devices. The RTI-12306 provides connections to Bus A, Bus B, and all current sensor outputs through the MDR connectors. RTI-12306 Front View Figure 6. RTI-12306 Front View... -
Page 19: Terminal Blocks
Ground reference for all signals. Terminal Blocks The following terminal blocks connect to the LOAD connectors on the SLSC-12251/12252 through SPxM-SPxF cables and provide easy spring terminal connections to the LOAD channels. The low voltage (<33 V) terminal block options also provide an HD44 connection for routing low current sense LOAD signals to an SLSC-12201 module. - Page 20 CH10 DGND TB-12397 The TB-12397 is a terminal block for use with the SLSC-12251 when all signals are <33Vdc. The HD44 connector J4 allows for sense connections (low current only) of the channels to another device such as the SLSC-12201.
- Page 21 Figure 10. TB-12397 DSUB Pinout CH11 CH10 CH12 CH13 CH15 CH14 Note NC indicates not connected and should not be used. TB-12398 The TB-12398 is a terminal block for use with SLSC-12252 devices. SLSC-12251 and SLSC-12252 User Manual | © National Instruments | 21...
- Page 22 The HD44 connector J4 allows for sense connections (low current only) of the channels to another device such as the SLSC-12201. Figure 12. TB-12399 Front View CH0 CH1 CH5 CH6 DGND 22 | ni.com | SLSC-12251 and SLSC-12252 User Manual...
- Page 23 DIN rail clip for mounting to a standard DIN rail. The terminal blocks can also be rear panel mounted using the provided pattern of M4 x 0.7 threaded holes. SLSC-12251 and SLSC-12252 User Manual | © National Instruments | 23...
- Page 24 Figure 15. Terminal Block Rear Hole Pattern 76.2 mm (3.00 in) 38.1 mm (1.50 in) 4x M4 X 0.7 Threads 7.0 mm [0.276 in] Max Insertion 38.1 mm (1.50 in) 76.2 mm (3.00 in) 24 | ni.com | SLSC-12251 and SLSC-12252 User Manual...
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Page 25: Slsc
NI trademarks. Other product and company names mentioned herein are trademarks or trade names of their respective companies. For patents covering NI products/technology, refer to the appropriate location: Help»Patents in your software, the file on your media, or the National Instruments Patent Notice at . You can find patents.txt ni.com/patents...
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