18
T R I S T A R I N S T A L L A T I O N
19
M O R N I N G S T A R C O R P O R A T I O N
2.0
The DIP switch settings described below are for Solar Battery Charging only.
Load and Diversion switch settings can be found in Appendixes 1 and 2.
The DIP switches are shipped in the OFF position. With the switches in the
OFF position, the following functions are present:
Switch Function
1
Battery charge mode
2, 3
Auto voltage select
4, 5, 6
Lowest battery charging voltage
7
Manual equalization
8
Normal PWM charging mode
To configure your TriStar for the battery charging and control you require,
follow the DIP switch adjustments described below. To change a switch from
OFF to ON, slide the switch up toward the top of the controller. Make sure
each switch is fully in the ON or OFF position.
DIP Switch Number 1 - Control Mode: Solar Battery Charging
Control
Switch 1
Charging
Off
Load
On
1
2
3
4
5
6
7
8
DIP
ON
ON
O FF
Figure 2.5 - Step 3 DIP Switch #1
For the Solar Battery Charging control mode, leave the DIP switch in the
OFF position as shown.
DIP Switches Number 2,3 - System Voltage:
Voltage
Switch 2
Switch 3
Auto Off Off
12 Off On
24 On Off
48 On On
Auto Select
1
2
3
4
5
6
7
8
DIP
ON
12 Volts
1
2
3
4
5
6
7
8
DIP
ON
ON
OFF
24 Volts
1
2
3
4
5
6
7
8
DIP
ON
48 Volts
1
2
3
4
5
6
7
8
DIP
ON
Figure 2.6 - Step 3 DIP Switches # 2,3
The auto voltage selection occurs when the battery is connected and the
TriStar starts-up. There should be no loads on the battery that might cause
a discharged battery to indicate a lower system voltage.
The DIP switch selectable voltages are for 12V, 24V or 48V lead-acid
batteries. Although the “auto voltage” selection is very dependable, it is
recommended to use the DIP switches to secure the correct system voltage.
DIP Switches Number 4,5,6 - Battery Charging Algorithm:
Battery Type PWM Switch 4
Switch 5
Switch 6
1
14.0 Off
Off
Off
2
14.15 Off
Off
On
3
14.35 Off
On
Off
4
14.4 Off
On
On
5
14.6 On
Off
Off
6
14.8 On
Off
On
7
15.0 On
On
Off
8
Custom On
On
On
PWM 14.0V
1
2
3
4
5
6
7
8
DIP
ON
PWM 14.15V
1
2
3
4
5
6
7
8
DIP
ON
PWM 14.35V
1
2
3
4
5
6
7
8
DIP
ON
PWM 14.4V
1
2
3
4
5
6
7
8
DIP
ON
ON
OFF
PWM 14.6V
1
2
3
4
5
6
7
8
DIP
ON
PWM 14.8V
1
2
3
4
5
6
7
8
DIP
ON
PWM 15.0V
1
2
3
4
5
6
7
8
DIP
ON
Custom
1
2
3
4
5
6
7
8
DIP
ON
Figure 2.7 - Step 3 DIP Switch # 4,5,6
