20
T R I S T A R I N S T A L L A T I O N
21
M O R N I N G S T A R C O R P O R A T I O N
2.0
Select one of the 7 standard battery charging algorithms, or select the
“custom” DIP switch for special custom settings using the PC software.
Refer to Section 9.0 of this manual for battery charging information. The 7
standard charging algorithms above are described in Section 4.2 -
Standard Battery Charging Programs.
DIP Switch Number 7 - Battery Equalization:
Equalize
Switch 7
Manual Off
Auto
On
Manual
1
2
3
4
5
6
7
8
DIP
ON
ON
O FF
Figure 2.8 - Step 3 DIP Switch # 7
In the Auto Equalization mode (switch #7 On), battery equalization will
automatically start and stop according to the battery program selected by
the DIP switches 4,5,6 above. See Section 4.0 for detailed information
about each standard battery algorithm and the equalization.
In the Manual Equalization mode (switch #7 Off), equalization will occur only
when manually started with the push-button. Automatic starting of equalization
is disabled. The equalization will automatically stop per the battery algorithm
selected.
In both cases (auto and manual mode), the push-button can be used to start
and stop battery equalization.
DIP Switch Number 8 - Noise Reduction:
Charging Switch 8
PWM
Off
On-Off
On
PWM
1
2
3
4
5
6
7
8
DIP
ON
ON
O FF
Figure 2.9- Step 3 DIP Switch # 8
The PWM battery charging algorithm is standard for all Morningstar charge
controllers. However, in cases where the PWM regulation causes noise inter-
ference with loads (e.g. some types of telecom equipment or radios), the
TriStar can be converted to an On-Off method of solar charge regulation.
It should be noted that the On-Off solar charge regulation is much less
effective than PWM. Any noise problem should be suppressed in other ways,
and only if no other solution is possible should the TriStar be changed to an
On-Off charger.
LOAD CONTROL
DIP switch settings are in Appendix 1.
DIVERSION CHARGE CONTROL
DIP switch settings are in Appendix 2.
NOTE: Confirm all dip-switch settings before going to the next installation
steps.
REMARQUE : Confirmez les réglages de tous les commutateurs dip avant
de passer aux étapes suivantes d’installation.
Step 4 - Remote Temperature Sensor (RTS)
For solar battery charging and diversion load control, a remote temperature
sensor (RTS) is recommended for effective temperature compensated charging.
This remote temperature probe should not be installed for dc load control.
The optional Morningstar RTS is connected to the 2-position terminal located
between the push-button and the LEDs. See the diagram below:
+
+ –
+
–
–
Figure 2.10- Step 4 RTS Connection
The RTS is supplied with 10 meters (33 ft) of 0.34 mm
2
(22 AWG) cable.
There is no polarity, so either wire (+ or –) can be connected to either screw
terminal. The RTS cable may be pulled through the conduit with the power
wires. Tighten the connector screws with 0.56 Nm (5 in-lb) of torque.
Refer to the installation instructions provided with the RTS.
WARNING: Risk of Fire.
If no Remote Temperature Sensor (RTS) is connected, use the
TriStar-PWM within 3m (10 ft) of the batteries. Internal Temperature Com-
pensation will be used if the RTS is not connected. Use of the RTS is strongly
recommended.
