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Installation
6
Accessories
50 | 151
Installation:
WARNING
Electrical voltage
Before installation with output card (4M):
●
Switch off the panel's power supply.
●
Disconnect power cable at the terminal '20-30V' on the output card (4M)
Detailed information on installation is available in document A6V10431015. See
chapter 'Applicable documents [➙ 9]'.
Technical:
●
Max. current of each output: 1.0 A @ DC 26 V
●
Max. current of total outputs: 2.0 A @ DC 26 V
●
Each line must be terminated with EOL element (Resistor 2.2 kΩ/1 W/0.5 %).
●
Additional technical details if option creeping open/short is activated:
–
When the output is configured as 'RT Fire', 'Sounder line' or 'Fire control',
max. line resistance is 74.3 Ω; min. sounder voltage is DC 16 V.
–
When the output is configured as 'RT Fault', the resistance scope is
350 Ω ~ 2500 Ω.
Configuration:
See 'Adding output card (4M) [➙ 119]' and 'Calibrating output card (4M) [➙ 105]'.
Checking the line resistance depending on the required current
It must be calculated to ensure the supply of the connected devices is met.
The picture shows the dependence of the line resistance (R Line) in relation to the
device voltage (U
), the available output current (I
min
current of the connected devices (I Load).
Fig. 22: Connection of the line resistance and EOL
Procedure for determining the maximum available device current (I Load):
1. Determine the line resistance R Line:
Configuring. See 'Calibrating output card (4M) [➙ 105]'.
–
–
'Engineering' > 'Calibrate 4M card line' > 'Output' 1-n > 'Calibrate EOL'
2. Detect the voltage U
3. Verify if all parameters satisfy the correct operations.
as per the device datasheet.
min
) and the minimum required
max
A6V10421795_en--_k
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