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SM36 Config Page: Charge
Note – you need to change both the 10 hour and 4 hour rates at the same time. The rates need
to be reasonably accurate (in terms of the proportion of 4 hour to 10 hour rates), otherwise the
SM36 may not accept the settings.
4.
Battery Current Limit
The Battery Current Limit is set as a percentage of the 10 hour rate entered in step 3.
SM36 Config Page: Control
Newmar recommends that you set this value at the highest rate possible to ensure the battery is
recharged as fast as possible (this could be as high as 30%, depending on the manufacturer).
However, especially in large systems, this may be more limited by the number of rectifiers
available, rather than this particular setting. For telco settings, this is often set to 10% (or
0.1C
, so for a 100Ahr battery, the current limit is 10A). This is more typical of a design
10
parameter than the need for the setting to be at this level. So a setting higher than this level
should be considered to enable the fastest recharge possible. However, consult the battery
manufacturer data to find the maximum value.
5.
Low Voltage Disconnect Settings
SM36 Config Page: Alarms (Levels)
This is usually a customer generated setting. Normally, the longer the discharge, the higher the
end voltage. So, for a discharge of <1hr, this may be 1.75Vpc (42.0V for a "48V" battery), or for
an 8 hour discharge, it may be 1.85Vpc (44.4V for a "48V" battery).
Note that if only one LVD is fitted, then the other thresholds (of LVD2 & LVD3) are normally set
well outside of possible tripping voltages. Although not essential, and those LVDs will not be
enabled anyway, it serves to avoid any confusion over which LVD signal is actually being used.
• Phone: 714-751-0488 • E-mail: techservice@newmarpower.com
Newmar • PO Box 1306, Newport Beach, CA 92663
19
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