L-Card L-502-P-G-D-I, Руководство пользователя

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5.7. Power supply system and galvanic isolation.
Parameter, characteristics Value, description
L-502 modifications, which have galvanic
isolation L-502-P-G, L-502-P-G-D, L-502-X-G, L-502-X-G-D
The condition of galvanic isolation in a
system of several L-502 connected via a
synchronization interface If in all connected L-502 there is galvanic isolation
Galvanic isolation border Between all circuits that come to the contacts of signal
connectors, and PC circuits.
The metal case DRB-37M is not galvanically isolated from
the PC.
Galvanic isolation border in a system of
several L-502 connected via a
synchronization interface Between all circuits that come to the contacts of all signal
connectors L-502, and PC circuits.
The metal housings DRB-37M are not galvanically isolated
from the PC. Between themselves all the signal circuits in
the system will not be galvanically isolated
Test voltage of galvanic isolation 500 V during 1 min.
The maximum permissible voltage rise rate
between galvanically isolated circuits in L-
502-
░
-G-
░
10 kV / μs
Total load power taken from all outputs
L-502:
The method for estimating the load power is given in p.
4.6
,
p.
48
For L-502-
░
-
░
-D (with DAC) 0.4 W
For L-502-
░
-
░
(without DAC) 0.8 W
External analog power supply outputs +15 V, -15V. The maximum load current is up to 30 mA,
provided that the total load power is not exceeded.
SC is
prohibited . Outputs are switched on by jumpers, (see p.
2.1.2
), this possibility is dependent on whether the
corresponding outputs of the DAC are used
External digital circuits supply output +3.3 V. The operating current of the load is up to 50 mA
permanently, up to 100 mA for a short time.
Attention! In versions 1 and 2 of L-502 products (serial
numbers start with the digit "1" or "2", short circuit of the
3.3 V is not allowed (leads to failure of L-502)!
In version 3, short circuit of the output is permissible.
Maximum current consumed from PCI
Express unit through circuits:
“+12 V”
0.4 A
“+3.3 V”
0.35 А for L
-502-X-
░
-
░
0.85 А for L
-502-P-
░
-
░
“+3.3 VAUX”
0.02 А