Alpha Technologies Spectra Series - Manual (Page 31)

Preliminary Operating Instructions 31 of 62 AIP SERVICE NUMBER 1-800-863-3364
The SCR Driver Board in the charger has a Summary alarm and Relay contact that indicates
when any fault has occurred. The fault has to be active for 30 seconds before the summary
alarm and contact are activated.
The optional ALARM I/O Relay Board has LEDs and Relay contacts that can be used to indicate
the following fault codes: EOD, GFI (positive or negative), DC Fail, Lo DC, Hi DC, Lo AC, and Hi
AC. This board also has a Summary alarm and Relay contact, which indicates when any fault
has occurred. The fault has to be active for 30 seconds before the summary alarm and contact
are active.
FAULT CODE DEFINITIONS:
Hi DC
This stands for High DC voltage. This fault occurs when the charger detects a DC voltage higher
than the value in the DC Hi set point location in the Alarm Settings menu.
Lo DC
This stands for Low DC voltage. This fault occurs when the charger detects a DC voltage lower
than the value in the DC Lo set point location in the Alarm Settings menu.
EOD
This stands for End of Discharge voltage. This fault occurs when the charger detects a DC
voltage lower than the value in the EOD set point location in the Alarm Settings menu.
GFI +
This stands for Ground Fault Indicator to the Positive Battery Terminal. This fault occurs when
the charger detects a leakage current from the battery positive to the charger ground of more
than the threshold value. The threshold value is set with a 10K-ohm resistor at the factory. The
GFI set points are set in the Alarm Settings menu.
GFI –
This stands for Ground Fault Indicator to the Negative Battery Terminal. This fault occurs when
the charger detects a leakage current from the battery negative to the charger ground of more
than the threshold value. The threshold value is set with a 10K-ohm resistor at the factory. The
GFI set points are set in the Alarm Settings menu.
HiLoc
This stands for High DC output voltage lockout. This fault occurs when the charger DC output
voltage exceeds the value in the HiLoc set point location in the Alarm Settings menu for more
than one minute or if the DC voltage varies above this value more than about three times in a
minute. This fault will lockout and not allow the charger to charge the batteries until the AC input
voltage is cycled off and then back on. Switching the AC breaker off and then on can do this.
The optional ALARM I/O Relay Board will indicate the “HiLoc” fault by actuating the “DC Hi”
contacts and LED if the “DC Hi” alarm is armed.
LoLoc
This stands for Low DC output voltage lockout. This fault occurs approximately 3 minutes after
the charger detects the DC output voltage drop below approximately 0.2 volts per cell or a near
short. This fault will lockout or not allow the charger to charge the batteries until the AC input
voltage is cycled off then back on or the battery voltage the charger detects increases above this
value.
Hi AC
This stands for High AC input voltage. The charger AC input voltage being higher than the
nominal AC input voltage for the charger by approximately 10% or more causes this fault.
Lo AC
This stands for Low AC input voltage. The charger AC input voltage being lower than the charger
nominal input voltage by approximately 10% or more causes this fault. An AC input voltage