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Chapter 1: Installation
38
CDC4 Door Controller Installation and Programming Manual
Output fusing and user current draw
The current draw on the door controller for all user devices must not exceed 3 A.
This value excludes battery charging and standalone board current.
The door controller will shut down if this is exceeded.
In some environments, further restrictions on user current apply as detailed in
“Operating temperature” on page 39.
On-board fuses provide over-current protection for devices as described in
Table 4 below. The numbers in the Item number column refer to items in
Figure 12 on page 13.
Table 4: Maximum current draw per output
Device
Item number
Maximum current draw
Auxiliary power
6
0.81 A total
Siren output
7
1.25 A RMS
Four on-board relays
10
1.7 A each (when using lock power 12 V
and 0 V)
Active relay coil
10
55 mA
Relay expander
13
0.5 A
Bus 1
18, 20, and 21
1.0 A total
Bus 2
19
0.5 A
Lock power 1
32
1.9 A
Lock power 2
22
1.25 A
Consider the maximum current draw from the devices above when calculating
the total user current draw.
Summary of Contents for CDC4
Page 1: ...CDC4 Door Controller Installation and Programming Manual P N 466 5478 REV D ISS 29OCT19 ...
Page 86: ...Chapter 3 Programming 80 CDC4 Door Controller Installation and Programming Manual ...
Page 120: ...Chapter 4 Menu reference 114 CDC4 Door Controller Installation and Programming Manual ...
Page 136: ...130 CDC4 Door Controller Installation and Programming Manual ...