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Installation
3.
Use only devices from the same manufacturer in each zone or field of view.
4.
In this example, the output is mapped to Input#1 in Master Configuration, but it can programmed to another input using the DIP
switches.
5.
For NFPA 72 compliance, notification appliances cannot be installed on the FACP control circuit connecting to the SK-PS input
circuits.
2.7 Connecting to an External Charger
The SK-PS Power Supply can be connected to an external charger to charge systems requiring over 33AH batteries. Ensure all power has
been disconnected before wiring. Observe polarity when making connections. Wiring must be in conduit within 20 feet (6.096m) in the same
room.
2.7.1 CHG-120F
1.
Set S1 position 4 on the SK-PS Power Supply to the OFF position to disable the onboard battery charger.
2.
Connect the battery cables between TB15 (+ and –) on the SK-PS and the CHG-120F charger output circuit (TB2: Out 1+ and Out 1–)
as shown in Figure 2.9. Be certain to observe polarity.
3.
Connect the batteries to the charger.
4.
Connect the battery interconnect cable only after AC power is applied and batteries are connected. Refer to the CHG-120F Manual for
more information.
5.
Cut and remove Jumper R104 on the CHG-120F to disable ground fault supervision.
Cut jumper R104
Note: If batteries are
disconnected at the
CHG-120 terminals,
battery supervision will
be managed by the
CHG-120.
2.7.2 CHG-75
1.
Set S1 position 4 on the SK-PS Power Supply to the OFF position to disable the onboard battery charger.
2.
Connect the battery cables between TB15 (+ and –) on the SK-PS and the CHG-75 charger output circuit (TB2: Out+ and Out–) as
shown in Figure 2.10. Be certain to observe polarity.
3.
Connect the batteries to the charger.
4.
Connect the battery interconnect cable only after AC power is applied and batteries are connected. Refer to the CHG-75 Manual for
more information.
5.
Cut and remove Jumper JP2 on the CHG-75 to disable ground fault detection.
JP1
CUT FOR
240VAC
F1
TB1
18
TB1
R104
CHG-120F
Charger
TB2
Battery interconnect cable
–
+
12V battery
Figure 2.9 Connecting the Power Supply to a CHG-120F Charger
CHG-75
TENS
0
1 1
5 7
10
Charger
8
14
12
1
13
6
15
2
9
4 3
0
1 1
5 7
10
8
14
12
1
13
6
15
2
9
4 3
ONES
Cut Jumper JP2
Battery interconnect cable
-
-
+
12V
12V
battery
battery
Figure 2.10 Connecting the Power Supply to a CHG-75 Charger
TB2
–
+
–
+
–
+
–
+
12V battery
J4
AM-1
TB2
+
-
TB2
+
-
ADDRESS
SW1
ON
OFF
JP2
TB3
TB4
J1 J2 J3
NC NO C
A- B- A+ B+
+
SK-PS Series Instruction Manual — P/N LS10227-002SK-E:C 2/2/2022
Connecting to an External Charger
TB4
NO NC C
NO NC C
PS Series Power Supply
Set S1 position 4 to
the OFF position to
disable charger
TB15
TB4
NO NC C
NO NC C
PS Series Power Supply
Set S1 position 4 to
the OFF position to
disable charger
TB15
-
+
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