National Instruments NI PXIe-2526, Руководство пользователя

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Note
Switching inductive loads (for example, motors and solenoids) can produce
high voltage transients in excess of the module’s rated voltage. Without additional
protection, these transients can interfere with module operation and impact relay life.
For more information about transient suppression, visit
ni.com/info and enter the
Info Code
relayflyback
.
DC path resistance
.................................................................... Initial < 0.5 Ω
.................................................................... End-of-life ≥ 1.5 Ω
DC path resistance is a combination of relay contact resistance and trace resistance. Measure
path resistance by combining the resistance of the high and low signal paths from one row to
one column. Contact resistance typically remains low for the life of a relay. At the end of relay
life, the contact resistance rises rapidly above ≥ 1.5 Ω.
............................................................................ Thermal EMF <10 µV
RF Performance Characteristics
............................................................................ Bandwidth (-3 dB, typical at 23 ºC)
50 Ω termination ≤10 MHz
Open channel isolation (typical at 23 ºC) 50 Ω
termination
.................................................................... 10 kHz ≥ 67 dB
.................................................................... 100 kHz ≥ 49 dB
.................................................................... 1 MHz ≥ 29 dB
Dynamic Characteristics
Relay operate time
.................................................................... Typical 1 ms
.................................................................... Maximum 3.1 ms
.................................................................... Simultaneous drive limit 82 relays
Expected relay life
.................................................................... Mechanical 1 × 10
8
cycles
Electrical
............................................................ ≤30 mV, ≤10 mA resistive 2.5 × 10
6
cycles
............................................................ 30 V, 1 A 5 × 10
5
cycles
NI PXIe-2526 Specifications | © National Instruments | 3