National Instruments NI PS-26 Manual
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National Instruments NI PS-26 Manual

National Instruments NI PS-26 Manual

24 v, 10 a, 240 w, single phase input
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P
D
RODUCT
ESCRIPTION
The NI PS-26 is a high-end power supply in a medium price range
without compromising quality, reliability, and performance. The
most outstanding features of the NI PS-26 are the high
efficiency, advanced inrush current limitation, active PFC, and
the wide operational temperature range.
The NI PS-26 includes all the essential basic functions. The
device also offers PowerBoost: power reserves of 20%, which
may even be used continuously at temperatures up to +45 °C.
Additionally, the NI PS-26 can deliver three times the nominal
output current for at least 12 ms, which helps to trip fuses on
faulty output branches.
High immunity to transients and power surges as well as low
electromagnetic emission, a DC-OK relay contact, and a large
international approval package for a variety of applications
makes this unit suitable for nearly every situation.
O
N
RDER
UMBERS
Power Supply
NI PS-26
Accessory
139683-01
October 2023/Rev. 1.7 NI PS-26
All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.
Side mounting kit for NI PS-26
24 V, 10 A, 240 W, S
P
S
OWER
UPPLY
 AC 100-240 V Wide-range Input
 Width only 39 mm
 Efficiency up to 95.2%
 Excellent Partial Load Efficiency
 20% Output Power Reserves (PowerBoost)
 Safe Hiccup
PLUS
Overload Mode
 Easy Fuse Breaking due to High Overload Peak Current
 Active Power Factor Correction (PFC)
 Minimal Inrush Current Surge
 Full Power Between -25 °C and +60 °C
 DC-OK Relay Contact
 1 Year Warranty
S
-
D
HORT
FORM
Output voltage
DC 24 V
Adjustment range
24–28 V
Output current
10.0–8.6 A
7.5–6.5 A
Derate linearly between +60 °C and +70 °C
PowerBoost
12.0 A
Linear decrease to nominal power between
+45 °C and +60 °C
Input voltage AC
AC 100-240 V
Mains frequency
50-60 Hz
Input current AC
2.15/1.1 A
Power factor
0.99/0.97
Input voltage DC
DC 110-150 V
Input current DC
2.35 A
Input inrush current
6/9 A pk
Efficiency
93.6/95.2%
Losses
16.4/12.1 W
Hold-up time
37/37 ms
Temperature range
-25 °C to +70 °C
Size (w x h x d)
39 x 124 x 117 mm
Weight
600 g
M
A
AIN
PPROVALS
For details and the complete approval list, see section 20.
Class I Div 2
NI PS-26
P
INGLE
HASE
ATA
Nominal
Factory setting 24.1 V
Up to +60 °C ambient
At +70 °C ambient
Up to +45 °C ambient
-15%/+10%
±6%
At 120/230 Vac
At 120/230 Vac
±20%
At 110 Vdc
At 40 °C 120/230 Vac
At 120/230 Vac
At 120/230 Vac
At 120/230 Vac
Without DIN rail
UL 508
I
NPUT
1/23

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Summary of Contents for National Instruments NI PS-26

  • Page 1  DC-OK Relay Contact  1 Year Warranty RODUCT ESCRIPTION HORT FORM The NI PS-26 is a high-end power supply in a medium price range Output voltage DC 24 V Nominal without compromising quality, reliability, and performance. The Adjustment range 24–28 V...

  • Page 2: Table Of Contents

    A key word indicating flexibility of choice with a strongly preferred implementation. October 2023/Rev. 1.7 NI PS-26 2/23 All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.

  • Page 3: Intended Use

    15 mm in case the adjacent device is a heat source. When the device is permanently loaded with less than 50%, the 5mm can be reduced to zero. October 2023/Rev. 1.7 NI PS-26 3/23 All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.

  • Page 4: Ac-Input

    The power factor is the ratio of the true (or real) power to the apparent power in an AC circuit. **) The crest factor is the mathematical ratio of the peak value to RMS value of the input current waveform. October 2023/Rev. 1.7 NI PS-26 4/23...

  • Page 5: Dc-Input

    Connect the PE terminal to an earth wire or to the machine Load ground. October 2023/Rev. 1.7 NI PS-26 5/23 All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.

  • Page 6: Input Inrush Current

    At 28 V and up to +45 °C ambient temperature, see Fig. 16-1 PowerBoost decreases linearly to nominal power between +45 °C and +60 °C, see section 16 October 2023/Rev. 1.7 NI PS-26 6/23 All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.
  • Page 7 C urrent Normal Normal S hort -circuit operation operation October 2023/Rev. 1.7 NI PS-26 7/23 All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.

  • Page 8: Hold-Up Time

    > 100ms open clos ed open clos ed October 2023/Rev. 1.7 NI PS-26 8/23 All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.

  • Page 9: Efficiency And Power Losses

    The manufacturer of the electrolytic capacitors only guarantees a maximum life of up to 15 years (131,400 h). Any number exceeding this value is a calculated theoretical lifetime which can be used to compare devices. October 2023/Rev. 1.7 NI PS-26 9/23...

  • Page 10: 11. Mtbf

    Screwdriver 3 mm slotted to open the spring October 2023/Rev. 1.7 NI PS-26 10/23 All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.

  • Page 11: Functional Diagram

    Ferrules are allowed. Daisy chaining: Daisy chaining is allowed for the NI PS-26. Daisy chaining (jumping from one power supply output to the next) is allowed as long as the average output current through one terminal pin does not exceed 25 A. If the current is higher, use a separate distribution terminal block as shown in Fig. 12-2.

  • Page 12: Front Side And User Elements

    0% of 200 Vac (= 0V) 5000 ms Criterion C October 2023/Rev. 1.7 NI PS-26 12/23 All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.

  • Page 13: Environment

    According to IEC 62477-1 for altitudes from 2000 m to 6000 m October 2023/Rev. 1.7 NI PS-26 13/23 All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.

  • Page 14: Protection Features

    IEC/EN 60950-1 PELV IEC/EN 60204-1, EN 62477-1, IEC 60364-4-41 October 2023/Rev. 1.7 NI PS-26 14/23 All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.

  • Page 15: Dielectric Strength

    Temperature Code: T4 Groups: A, B, C and D October 2023/Rev. 1.7 NI PS-26 15/23 All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.

  • Page 16: Regulatory Product Compliance

    The UKCA mark indicates conformity with the UK Statutory Instruments 2016 No.1101, 2016 No.1091, 2012 No.3032 October 2023/Rev. 1.7 NI PS-26 16/23 All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.

  • Page 17: Physical Dimensions And Weight

    For sideway DIN rail mounting, the removed aluminum brackets and the black plastic slider need to be mounted on the steel bracket. October 2023/Rev. 1.7 NI PS-26 17/23 All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.

  • Page 18: Application Notes

    (2x the nominal current) (5x the nominal current) October 2023/Rev. 1.7 NI PS-26 18/23 All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.

  • Page 19: Back-Feeding Loads

    Furthermore, the impedance of the faulty branch must be sufficiently small for the current to actually flow. The best current reserve in the power supply does not help if Ohm’s law does not October 2023/Rev. 1.7 NI PS-26 19/23...

  • Page 20: Series Operation

    NCREASE UTPUT OWER NI PS-26 power supplies can be paralleled to increase the output power. The output Unit A voltage of all power supplies shall be adjusted to the same value (±100 mV) with the same load conditions on all units, or the units can be left with the factory settings. There is no feature included which balances the load current between the power supplies.

  • Page 21: Parallel Use For Redundancy

    Use a 15 A or 16 A circuit breaker (or blocking diode) between the power supply and the battery. Ensure that the output current of the power supply is below the allowed charging current of the battery. October 2023/Rev. 1.7 NI PS-26 21/23...

  • Page 22: Operation On Two Phases

    S upply Ambient Temperature INP UT 60°C October 2023/Rev. 1.7 NI PS-26 22/23 All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.
  • Page 23 Mounting Orientation E (Horizontal ccw) Ambient Temperature 60°C October 2023/Rev. 1.7 NI PS-26 23/23 All values are typical at 24 V, 10 A, 230 Vac, 50 Hz, 25 °C ambient and after a 5 minute run-in time unless otherwise noted.

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