GE ATS125 Series Installation Manual page 25

NF & A2P - 3 72
VdS - B 30
VdS - C 60
* Available battery capacities depend on the housing as well. Please refer to maximum battery
capacity in "Specifications" on page 19.
All Auxiliary currents mentioned in the tables above are calculated for the 24 V
auxiliary. For calculation of the maximum load on 12 V auxiliary outputs a correction
factor of 1.6 should be taken into account.
Formula: I @12 V = I
aux
Example 1
One wants to meet Approval grade EN 1&2 with an 18 Ah battery. The application has
a maximum load of 24 V locks of 800 mA. According Table 9 on page 20, the
maximum available auxiliary current is 1400 mA @ 24 V.
This means that besides the 800 mA for the 24 locks either:
• 1400 — 800 = 600 mA is left @ 24 V auxiliary or
• 600 x 1.6 = 960 mA left @ 12 V auxiliary, i.e. auxiliary power, local databus.
Example 2
One wants to meet Approval grade NF & A2P – 2 with an 18 Ah battery. The
application has a maximum local comms load (12 V) of 200 mA. According Table 9 on
page 20, it means that the maximum available auxiliary current is 400 mA @ 24 V.
This 200 mA @ 12 V local comms load results in:
• 200 ÷ 1.6 = 125 mA @ 24 V and this leaves
• 400 — 125 = 275 mA @ 24 V for auxiliary (i.e. locks power).
Restrictions
• Max 12 V auxiliary current: 1000 mA
• Max 24 V auxiliary current: 1600 mA
Maximum auxiliary current can be limited by:
• Discharge duration
• Available charge capacity for battery
• Auxiliary fuse
All data is based on a board without external equipment.
Cabling distance
Table 10: Cabling distance
From
ATS control panel
system databus (J10)
ATS125x 4-Door DGP Installation Manual
30
24
24
@ 24 V x 1.6
aux
To Distance
ATS125x system 1.5 km (total databus length
databus (CON6) without repeaters)
N/A 150
120 500
N/A 200
Cable type
WCAT 52 or equivalent
250
730
300
21