actually running, field drive will increase to Full Field until a fault check causes the regulator to reset. Do not leave the ‘ignition’ in the ON position, without the engine actually running to prevent this situation. It would be advisable to assure there is a temperature sensor attached to the alternator in this case – to prevent unintended overheating during prolonged idle periods. Note: Field pull back is dependent upon the stator sensing wire being connected to the alternator. If the regulator is unable to reliably sense RPMs, all idle pull-back features will be disabled. Note also that one should make sure to configure the tachometer via the $SCT: command. Alt Amp Cap: <WHOLE NUMBER ( -1 500 ) > Alternator Amperage Capacity (<Alt Amp Cap> ) is an uncommon factor and primarily used when the Current Shunt located at the alternator (vs. the battery). When defined the regulator will limit the Amperage output of the alternator to this value, after applying the ‘ Alt Derate xxx’ factors. (Reference Derate factors above) There is no adjustment made to this value based on system voltage or selection of system battery size – the values declared will be used directly. A special feature is enabled by setting this = -1: the regulator will drive the alternator as hard as it can for a short period of time when 1 st entering Bulk phase and in this way will auto-sample the alternator size based on its capabilities.
(Default = 0, disabled)
Do note with this option, there may be some interactions between the field % pullbacks and an attempt to reduce what is perceive d as ‘alternator current’ pullback, for example during half -power mode.
With Alternator Amperage Cap disabled, reduced power modes will apply the scaling factor to the PWM duty cycle. It should be noted that there may not be a direct relation between reductions in PWM duty cycles and delivered Amperages – care should be used when setting up the system. (Default: 1.00, 0.75, 0.50 respectively)
System Watts Cap: <WHOLE NUMBER ( -1 20000 )> This regulator will limit the system wattage to this value. Its primary use is to protect the driving engine and/or belts – by limiting the maximum amount of Work the engine is asked to do in behalf of the alternator. (Work being a function of BOTH Volts and Amps, hence Watts). It may also be used to limit the total amount of power being delivered into the battery by all charging sources. There is no derating or adjustment made to this value based on system voltage or selection of system battery size. <System Watts Capacity> is used to after applying the ‘ Alt Derate xxx’ factors. It is used to protect the alternator from over current usage. A special feature is enabled by setting this = -1, the regulator will drive the alternator as hard as it can for a short period of time when 1 st entering Bulk phase. This will then be used to define the Amp Limit of the Alternator. Note on Alt Amps and System Watts: You may set either of these parameters =-1 to allow the regulator to automatically calculate limits based on the sampled capability of the alternator, or set them = 0 to disable that feature. Though these two are interlaced, they are indeed separately monitored and adjustments to the Field PWM are made independently for each.
.(Default = 0, disabled)
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