Videx VX2200 Guide de dépannage télécharger pdf (Page 17)

PAGE 17 of 68 VX2200 TECHNICAL MANUAL VER1.5

CONTROL EQUIPEMENT

As there are many variations

of control cabinet available

(Audio, video, with isolation,

multiple door etc). The

components that make up a

control cabinet are listed

below:-

13.8Vdc SYSTEM PSU

Battery backup is a standard

feature of these PSU’s. We

recommend a 7Ah sealed lead

acid battery. 1A, 2A, 3A & 4A

PSU’s are normally used on this

system, all of which have a

regulated output voltage of

13.8Vdc. DC out and battery trickle charge are independently fused.

Additionally the 4A PSU includes a fan out PCB which shares the

available 4A’s between 4 independently fused outputs. The

combination of these fuse values can be anything as long as the 4

outputs are fused to no more than 4A. Fuse values are as follows:-

PSU MAINS FUSE DC OUT FUSE BATTERY TRICKLE CHARGE

FUSE

2 Amp T315mA F2.0A T315mA

3 Amp T630mA F3.0A T315mA

4 Amp T3.15A Main fuse F4.0A. Fan out

fuses can be any

combination up to a total of

T1A

20Vdc VIDEO PSU

The Art.893N1 is a 1A pulse, 800mA continuous

20Vdc PSU. It is a switched output supply

requiring either a positive trigger on terminal ‘+C’

or a negative trigger on ‘-C’ to switch the 20Vdc

output on. There are no fuses in this PSU. If there

is a short on the output or an over current situation

then the PSU will shut down until the problem is

resolved.

CONNECTION FUNCTION

-C 0V trigger to activate output

+C +8-30Vdc to activate output

- 0V output connection

+ 20Vdc output connection

+D 20Vdc output via diode

1 2 ... 12 13 14 15 16 17 18 19 20 21 22 ... 67 68

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Videx VX2200 Guide de dépannage Page 17

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