Battery Connection - Siemens PAD-3 Installation, Operation And Maintenance Manual

2.5.2

Battery Connection

The PAD-3 requires a 24V sealed lead-acid battery set. The battery capacity can be from 7 to 15A.H. For
battery sets larger than 7A.H., an enclosure with System 3 rails or a separate battery enclosure is
required.
The following steps and diagram explain how to connect the Siemens BT-33, 7A.H. battery set.
1. Connect black wire to the negative (-) side of battery #2.
2. Connect jumper wire from the positive (+) side of battery #2 to the negative side of battery #1.
3. Connect red wire to the positive (+) side of battery #1.
J10
BATTERY
CHARGER
1-2 ENABLED
2-3 DISABLED
J4
1 1
2 2
3 3
Figure 2-5. Battery Wiring
Figure 2-4. Battery Installation
F2
D14
1
F3
2
3
K6
J5 J7
1
2
N.A.C.
3
JUMPERS
1-2 CLASS B
2-3 CLASS A
J2
B+
J3
24V BATTERY SET
B-
(7 TO 15.0 AH)
J8
SUPERVISED
1
NON-POWER LIMITED
2
3
INPUT CURRENT (MAX.) : 6.1A
CHARGE VOLTAGE (MAX.) : 27.8VDC
CHARGE CURRENT (MAX.) : 3.3A
11