Compatible DAQ Multifunction I/O Modules and Cabling

The RM-26999 Hazardous Voltage inputs are designed for measuring voltage according to the guidelines specified in the Hazardous Voltage Ports section of RM-26999 Back Panel. The Current Transducer inputs are designed to measure current using an external current transducer.

While the RM-26999 provides the necessary power, communication, and signal conditioning for these measurements; an appropriate DAQ Multifunction I/O Module is required to complete the system.

NI recommends using the RM-26999 with the following DAQ Multifunction I/O Modules and cables.

Table 2. Recommended Modules and Cables
Component Recommended Models
DAQ Multifunction I/O Modules One of the following:
  • PXIe-6346
  • PXIe-6349 (Connector 0 only)
  • PXIe-6356
  • PXIe-6358
  • PXIe-6366
  • PXIe-6368
  • PXIe-6376
  • PXIe-6378
  • PXIe-6386
  • PXIe-6396
Cable (one for each connected RM-26999) SHC68-68-EPM
Note For additional information about DAQ Multifunction I/O module cables, refer to the DAQ Multifunction I/O Cable and Accessory Compatibility Guide at ni.com/r/miocag.

RM-26999 Accessories

Power Accessories

You must power the RM-26999 using a suitably rated 24 V power supply. The total power required depends on the current transducers and the signal current. If a suitable 24V power supply is not already part of your system, refer to the following table for suggested power supplies available from NI.

Figure 1. Power Supply


Table 3. NI Power Supplies
Description Part Number
NI PS-15 Industrial Power Supply, 24 V DC to 28 V DC, 5 A, 100/230 V AC Input 781093-01
NI PS-16 Industrial Power Supply, 24 V DC to 28 V DC, 10 A, 115/230 V AC Input 781094-01
Note NI provides a power connector in the RM-26999 kit. If you require additional power connectors, you can order them through Phoenix Contact.
Figure 2. Power Connector


Table 4. Replacement Power Connector
Manufacturer Part Number
Phoenix Contact 1970058

SHDB9M-DB9F-BNCM Cable

This cable is designed to interface to the RM-26999 current transducer ports and current transducers that output a voltage for the current measurement.

Figure 3. SHDB9M-DB9F-BNCM Cable


Table 5. SHDB9M-DB9F-BNCM Cables
Cable Length Part Number
2 m 786668-02
3 m 786668-03
5 m 786668-05

SHDB9M-DB9F Cable

This cable is designed to interface to the SHDB9M-DB9F-SHUNT and current transducers that output a current for the current measurement. You must choose an appropriate SHDB9M-DB9F-SHUNT value for the chosen transducer.

Figure 4. SHDB9M-DB9F Cable


Table 6. SHDB9M-DB9F Cables
Cable Length Part Number
2 m 786879-02
3 m 786879-03
5 m 786879-05

SHDB9M-DB9F-SHUNT

Use this shunt accessory to convert the current output from a transducer to a voltage signal that can be read by the RM-26999. Do not exceed the working voltage of the RM-26999 inputs.

SHDB9M-DB9F-SHUNT



Table 7. SHDB9M-DB9F Shunt
Resistance Value Part Number
0.5 Ω 786897-0R5
1 Ω 786897-01
2 Ω 786897-02
5 Ω 786897-05
10 Ω 786897-10

DaniSense Current Transducers

NI recommends and has validated the RM-26999 rackmount signal conditioning device with DaniSense current transducers. These transducers are ideal for highly accurate and isolated DC and AC current measurements.

Note This is not a comprehensive list of available current transducers offered by DaniSense. Contact DaniSense at www.danisense.com for additional models that fit your application requirements.
Figure 5. DaniSense Current Transducer, Voltage Output


Table 8. DaniSense Current Transducers, Voltage Output
Model Part Number
50 A, DS50UB-10V 786956-01
200 A, DS200UB-10V 786957-01
600 A, DS600UB-10V 786958-01
2000 A, DL2000UB-10V 786959-01
Figure 6. DaniSense Current Transducer, Current Output


Table 9. DaniSense Current Transducers, Current Output
Model Part Number
150 A, DS50ID Not currently available through NI.
370 A, DS200ID Not currently available through NI.
1000 A, DS600ID Not currently available through NI.
3000 A, DL2000ID Not currently available through NI.
Note Contact DaniSense to purchase Current Output Current Transducers at www.danisense.com.

Accessories for Hazardous Voltages

NI recommends using these connectors and cables to connect hazardous voltages to the RM-26999. The recommended accessories are suitably rated to operate at high voltages compatible with the RM-26999.

Figure 7. Hazardous Voltage Banana Connectors


Table 10. Recommended Hazardous Voltage Banana Connectors
Manufacturer Description Part Number
Mueller Shrouded Banana Plug, Black BU-32603-0
Mueller Shrouded Banana Plug, Red BU-32603-2
Stäubli Shrouded Banana Plug, Black 66.9196-21
Stäubli Shrouded Banana Plug, Red 66.9196-22

Use the cable appropriate for the installation requirements of your application.

Figure 8. Hazardous Voltage Cable


Table 11. Recommended Hazardous Voltage Cables
Manufacturer Description Part Number
TE Connectivity High-Frequency Twinaxial Cable, 1 kV RMS 2021D0309-0
Trompeter High-Frequency Twinaxial Cable, 1 kV RMS, 2 kV DC TWC-124-2