Required Sensors: <WHOLE NUMBER ( 0 255 ) > Many capabilities depend on the presence of sensors. Battery compensation requires the presence of a battery temperature sensor; Alternator Temperature regulation requires the presence of an alternator temperature sensor. If one or more of these sensors are not installed, or fail during operation, results could be less then desired. As a precaution against this, Required Sensors allows the identification of critical sensors, and if any of them are missing or fail the regulator will take action to reduce demands placed on the system. Required Sensors allows the identification of critical sensors. It is a number created by summing up the value associated with each potential critical sensor. For example: if you wished to indicate the Alternator and Battery temperature sensors are critical, you would enter 3 (1+2). The value of 0 disables critical Required Sensor checks and the regulator will utilize other existing fall-back modes.
Value
Sensor
Default Action of missing sensor
Alternator Temperature Sensor Battery Temperature Sensor
1 2 4
Enable Half-Power mode Force to FLOAT mode
Battery Current **
Force to FLOAT mode (See note**)
CAN RBM
8
Disable charging, Feature-in may be used to Force to Float when CPE #8 is selected
Force FAULT override
128
Overrides ‘Default’ action and forces regulator into FAULT mode.
Table 1 - Required Sensor Encoding
If at any time one of the Required Sensors are identified as failed or missing the LED will flash its normal patterns, but in RED. In addition the feature-out port / dash-lamp it will also flash out error codes during a fault. If the WS500 Alternator Regulator has been configured to repurpose the BTS for a 2 nd alternator, a failure in either ATS or the repurposed BTS (now known as ATS2) will trigger the Alternator Temperature Required Sensor check. The WS500 Alternator Regulator may also be configured to cause a non-recoverable FAULT condition, overriding the default actions listed in Table 1 by adding 128 to the summed number. In the prior example of Bat and Alt sensors being critical, sending 131 instead of 3 will cause the regulator to FAULT if either is noted as missing or fails. Battery current / Battery Temperature values arriving via the CAN from a remote battery master or BMS may be used to satisfy the Bat Temp and or Bat Current checks in Required Sensors. In addition, by selecting CAN RBM a check for the entire presence of a remote battery master or BMS may be required as well. Note** When not receiving Battery Current via the CAN, and utilizing the shunt for measurements, it is difficult to determine if an Amp Shunt has failed vs. a true reading 0A of current. Because of this, the WS500 Alternator Regulator will delay check for the presence of a working Current Shunt until after Bulk has been completed. A current reading of greater then 5A at any time during BULK phase will be used as an indicator that the current
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