Notifier AFP-200 - The Main Power Supply

72 AFP-200 Instruction PN 15511:F2 10/11/99
A.3 The Main Power Supply
The control panel's main power supply can supply a total of 5.0 A in alarm and 1.0 A in standby (non-alarm
condition). The current available for powering external devices, however, is subject to lower limits as shown in
Figure A-1 and Figure A-2.
A.3.1 Current Limitations in Standby
Current for operating an external device in standby (non-alarm) is subject to the following limitations:
1. Non-resettable power (TB1, terminals 3 and 4) and resettable power (TB1, terminals 5 and 6) are limited
to a combined total of 0.5 A. Using Table A-3, Calculation Column 1, verify that the combined subtotal of
rows 4 and 5 is less that 0.5 A.
2. The total power supply load is limited to 1.0 A. Using Table A-3, verify that the total of Calculation
Column 1 is less than 1.0 A.
A.3.2 Current Limitations in Alarm  System operation on primary power
Current for operating external devices in alarm is subject to the following limitations:
1. High ripple power (TB1, terminals 1 and 2) is limited to 1.5 A. Using Table A-3 Calculation Column 2,
verify that the subtotal of row 3 is less than 1.5 A.
2. Non-resttable power (TB1, terminals 3 and 4) and resettable power (TB1, terminals 5 and 6) are limited to a
combined total of 0.5 A. Using Table A-3 Calculation Column 2, verify that the subtotal of rows 4 and 5
combined is less than 0.5 A.
3. The maximum load on NAC #1 (TB1, terminals 1 and 2) cannot exceed 2.5 A. Using Table A-3 Calculation
Column 2, verify that the subtotal of row 6 is less than 2.5 A.
4. The maximum combined load on NAC #2, NAC #3, and NAC #4 (TB2, terminals 3–8) cannot exceed 2.5
A. Using Table A-3 Calculation Column 2, verify that the subtotal of row 7, 8, or 9 is less than 2.5 A.
5. The total power supply load is limited to 5.0 A. Using Table A-3, verify that the subtotal for Calculation
Column 2 is less than 5.0 A.
Figure A-1 TB1 Standby Current Limitations
0.5 A
combined
1.0 A Total System
TB1
1.5 A
0.5 A
combined
5.0 A Total System
TB1
TB2
Figure A-2 TB1 and TB2 Alarm Current Limitations
2.5 A
2.5 A
combined