Alpha Technologies Spectra Series - Manual (Page 46)

Preliminary Operating Instructions 46 of 62 AIP SERVICE NUMBER 1-800-863-3364
CHARGER FAULT CODE SYMPTOMS (CONTINUED)
Symptom Possible
Cause
Recommended Action
18) DC Fail
fault code. DC breaker
OFF or no DC
voltage at the
charger. Check the CB2 DC breaker, it has probably tripped or is OFF. If it is not off,
the charger is not detecting voltage at the output. This fault will not be
displayed on the display, but it will cause the “DC ON” LED to be off. Go to
the "DC ON" LED off symptom (#21).
19) Hi AC
fault code. High AC input
voltage. Measure the charger AC input voltage. If it is higher than the nominal AC
input voltage for the charger by approximately 10% or more, this is normal.
Bad T1
transformer
supply to
board.
If the AC input voltage that is measured is not high and there is still a FAULT,
check the AC voltage across wires JE4 pins 5 and 6. See SECTION 15.3 on
transformer testing.
Bad A1 SCR
Driver Board If transformer and AC supply voltages are good, then do a complete power
reboot of the charger. If fault remains replace the board.
20) Lo AC
fault code. Low AC input
voltage. Measure the charger AC input voltage. If it is lower than the nominal AC input
voltage for the charger by approximately 12% or more, this fault is normal.
An AC input power loss or an AC breaker in the OFF position will also cause
this symptom. If the charger has an AC power loss, or an AC breaker in the
OFF position, the green "AC ON" LED will be off.
Bad T1
transformer
supply to
board.
If the AC input voltage that is measured is not low and you still have this
FAULT, you will need to check the AC voltage across wires JE4 pins 5 and 6.
See SECTION 15.3 on transformer testing.
Bad A1 SCR
Driver Board. If the transformer and AC supply voltages are good, then do a complete
power reboot of the charger. If fault remains, replace the board.
21) "DC ON"
LED off. DC breaker
(CB2) off This LED will light whenever the DC circuit breaker is ON and the charger
detects DC voltage. This voltage can be the charger capacitor or battery
voltage. Verify breaker is ON.
Bad A2 control
board or
CC1 cable. If the charger has output current, you have a defective control board A2 or
communication cable CC1 connection.
Bad DC
breaker sense
connection.
If the charger does not have output current, the control board shows a voltage
on the display, the breaker is ON, and the LED is not illuminated, there may
be a bad connection. First, de-energize the charger and next check the wire
connections on JE5 pins 8 and 10.
22) "AC ON"
LED off. AC breaker
(CB1) off or
No AC input
voltage. If the AC breaker is off, this is expected. If the breaker is ON, verify voltage
on the TS2 AC input terminal strip at locations "C" and "D" where the charger
transformer T1 connects. Continue to the next step if there is AC voltage at
the T1 primary wires.
Bad A2 control
board or
CC1 cable. If the Status LED on the SCR driver board is illuminated (see FIGURE 10.1),
check the cable CC1 connections to the control board and check the control
board. Replace if defective.