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Appendix A
Specifications
NI PS-15 Power Supply User Manual
A-6
ni.com
Hold-up Time
Figure A-8.
Hold-Up Time Vs. Input Voltage
Figure A-9.
Shutdown Behavior, Definitions
Note
At no load, the hold-up time can be up to several seconds. The green DC OK LED
is lit during this time.
Typical/
Maximum
AC
100V
AC
120V
AC
230V
Hold-up Time
Typical
109 ms
165 ms
161 ms
2.5 A, 24 V, refer to Figure A-8
Typical
50 ms
80 ms
78 ms
5 A, 24 V, refer to Figure A-8
Typical
37 ms
62 ms
63 ms
6 A, 24 V, refer to Figure A-8
0
25
50
150 ms
85
Hold-up Time
100
75
125
Input Voltage
a) 24 V 2,5 A typ.
b) 24 V 2,5 A min.
c) 24 V 5 A typ.
d) 24 V 5 A min.
e) 24 V 6 A min.
a
a
b
c
c
d
d
e
e
b
180
230 Vac
100 120
– 5%
Hold-up Time
Zero Transition
Output
Voltage
Intput
Voltage