Technical Manual

Chapter B • Local Menu “WALL” Command Information
D C U M a i n t e n a n c e a n d O p e r a t i o n M a n u a l 65
Input Current = 01.24A Power Board input current (Iin) is the current provided to the power board.
Power Supply Module Temp =
71.27C
Die Temperature of the LTC4015 Power Supply Chip. This value should never exceed 125C
and is actively controlled. During full solar charging of a depleted battery, the
temperature will likely approach 115C.
Battery Temp = 30.09C
Temperature taken at the thermistor on the battery lug. This temperature should be
close to the outside ambient temperature. Valid range is -60C to 80C. -99C value (or
future alarm) indicates a bad or missing thermistor that must be replaced for optimal
battery charging.
DCU battery charging = YES Indicates the battery charging state at the time of reading the configuration.
Wakeup settings:
Applicable only for the 9985H board, this specifies the operation when the DCU is in low
power mode. These default values should never be adjusted without Aclara Engineering
direction.
Wakeup Period = 4320(Minutes)
Sets the amount of minutes between each service time. The default is 4320 minutes (72
hours). Every 72 hours, the DCU will wake up and operate in normal operating mode for
the duration of the service time. This default value should never be adjusted without
Aclara Engineering direction.
Wakeup Local Time =
1320(Minute of Day)
Sets the local time of day that the DCU will wake up during the wakeup service period.
Default is 1320 (10pm Local time). The DCU estimates local time from longitude so the
local wakeup time may be off by an hour. This default value should never be adjusted
without Aclara Engineering direction.
Wakeup Service Time =
360(Minutes)
Sets the duration the DCU will remain in normal operating mode. The default is 360
minutes (6 hours). This default value should never be adjusted without Aclara
Engineering direction.
Power report settings:
Power Data Logging Only Applicable for the 9985H Board
• Battery Power Modes
• Bulk: High voltage and current phase when state of charge is between 0 and ~80%
when battery can accept charge without overheating.
• Absorb: Constant voltage with decreasing current phase when state of charge is
between ~80% and 95% to prevent battery overheating
• Float/Trickle: Charging current reduced to less that 1% of battery AHr capacity.
• Discharge: Battery state-of-charge declines; each charge/discharge cycle reduces
battery life
Absorb charge state report
interval = 2(minutes)
Frequency of firmware reporting of power statistics when battery in Bulk or Absorb Mode
Expected Values: 0=Inactive, 1 to 144 (10 to 1440 minutes) Default Value = 2 (20
minutes).
Field Example Description