Technical Manual
Table Of Contents
- Table of Contents
- Product Specifications
- Warnings, Cautions, and Notes
- Introduction
- Commissioning
- Tools Required
- Connect to the Main Board
- Commission the DCU
- Installer Commands
- Global Commands
- Administrator Commands (for an LTE Backhaul)
- Alarm Menu
- Manufacturing Menu
- MTU Menu
- Transceiver Menu
- Records Menu
- Power Supply Debug Menu
- Transceiver Debug Menu
- Advanced Menu
- Global Navigation Satellite System (GNSS) Menu
- Maintenance
- Troubleshooting
- Testing the DCU
- Local Menu “WALL” Command Information
- DCU-Generated Headend Messages
- Index
Chapter C • DCU-Generated Headend Messages
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 83
Power
Supply
CHARGEError=BattShort
Daily (if
condition
present)
X
DCU2+ Battery Charger Error: errors include:
• BattMissing: No battery detected. Check cables
• BattShort: Battery shorted. Check cables and
circuits
• CellCount: Unexpected battery cell count value
• Thermal: Power Board LTC4015 microprocessor in
thermal shutdown protection mode due to an
excessively high die temperature.
• HighVoltageInput: Power Board LTC4015
microprocessor in thermal shutdown protection
mode due to an input voltage above its protection
shutdown threshold of approximately 38.6V
(typical).
• LowVoltageInput: Power Board input voltage not
high enough to allow battery charging
• HighNTCRatio = Thermistor may be absent,
damaged, or cable pinched.
• LowNTCRatio = Thermistor may be faulty or wire
shorted.
Power
Supply
CHARGEMPPT=Enabled
Daily (if
condition
present)
Main board throttling of input current (0x15 or 0x1A)
due to temp. Otherwise maximum power point tracking
is turned on (needed for solar). Status is read (from
LTC4015 Register 0x39 bit 11: mppt_en_pin).
Power
Supply
CHARGEState=On,Absorb/CC
Daily, On
Change
X
DCU2+ Charging State:
• On,Equalize - Lead-acid equalization charge state
• On,Absorb = Absorb charge state. Expected until
battery about 80% charged
• On,CC_CV = Constant-current constant-voltage
state. Expected when battery 80% to 95% charged
• Off,Suspended = Battery charging suspended.
Might occur due to extreme air temperatures
• Off,Error = Battery missing or shorted
Power
Supply
FullPwrCompsumption=4000 Daily X 03.10.0012
Normal Operation Average Power Consumption in
milliWatts. A standard DCU 2+ configuration typically
consumes about 4000mW.
Power
Supply
H0CM=AC/DC On Change X X
Charging Mode:
AC/DC - AC source detected/selected
SOLAR - Solar source detected/selected
LUNAR - Lunar source selected (DCU2 only)
NOPWR - no source detected (DCU2+ only)
ERROR - unsupported configuration (DCU2+ only)
Note that DCU2 is manually set in the console while DCU
2+ is autodetected.
Source Message Frequency DCU 2 DCU 2+
Mainboard
Firmware
Description