Product Manual

Basic Protection Features
975-0636-01-01 Rev E 1–5
Multiple Unit Charging
Multiple Conext SW Inverter/Chargers synchronize charging stages to ensure
efficient charging of the battery bank. When a single unit transitions from bulk to
absorption so do all other units. In absorption, all units must complete the
absorption stage before transitioning to the next stage. Note that units do not
load share when charging except during the bulk stage. The Conext SWs stop
sharing charge current just before completing the bulk stage. The units do not
share charge current during the absorption and float stages.
Each unit charges batteries based on the Max Charge Rate setting and active
internal (temperature-based) deratings.
If equalization is enabled on one or more devices capable of equalization
charging, only those devices perform an equalize cycle after absorption. Other
devices transition to float (if three-stage charging is selected) or transition to AC
pass-through (if two-stage charging is selected).
Basic Protection Features
The Conext SW has the following protection features:
• Over temperature shutdown for critical components such as the transformer
and the power board
• Battery temperature sensor (BTS) failure/battery temperature out-of-range
fault protection
• DC output over voltage protection during charge mode
• AC output overload and short circuit protection during invert mode
• AC backfeed
1
protection
The Battery Temperature Sensor (BTS) provides these protection features:
• Battery over temperature charging protection preventing battery charging at
60 °C or higher
• Charging voltage compensation based on the temperature of the battery the
BTS is connected to
1.An AC backfeed error occurs when the AC output of the inverter/charger is connected or
routed back to the inverter/charger’s AC input terminal or if the an AC internal transfer relay error
is detected.
ConextSWEUROwnersGuide.book Page 5 Thursday, July 23, 2015 3:32 PM