Alarms - GE WattStation Installation And User Manual

Code 142 – Fan required to charge
The SAE J1772 standard has an accommodation for electric vehicles which have batteries that
outgas during charging. These vehicles will take the pilot to State D (i.e. 3V) instead of the
normal State C (6V) to indicate they are ready for charge. If used indoors, facility ventilation is
required to charge these types of vehicles. The charging plug must be removed from the EV
socket in order to clear this fault.
Codes 143, 144, 145, 151, 152 – Communication Controller Failure
If the fault does not automatically clear or by removing the EVSE connector from the vehicle,
cycle power on the WattStation.

7.4 Alarms

Code 153 – Ground fault
This alarm indicates that the charge controller has detected a ground fault condition that
exceeds the allowable levels per UL 2231-2. The WattStation unit implements the CCID 20
protection as defined in UL 2231-2, which requires a 20mA ground fault to trip in under 1
second (higher currents require faster trip times). The controller will automatically reclose after
a 15 minute delay, up to a maximum of four times per charging cycle. On the fifth ground
fault, the controller will issue code 131 and the charging plug will have to be removed from the
EV to clear the fault.
Code 154 – Pilot transition violation
This alarm indicates that the charge controller has detected a transition from State A (12V) to
State C (6V) on the vehicle Pilot circuit input (J7). Unless it is specifically configured to allow the
State A to State C transition (bypassing State B) by enabling non-SAE 1772 compliant mode
charging in the configuration tool, the charge controller will issue this alarm. The alarm will
clear automatically when the Pilot is returned to State A.
Code 155 – Pilot 0V feedback
This alarm indicates that the charge controller has detected a zero volts on the vehicle Pilot
circuit input. The charge controller itself does not have the capability to take the pilot to zero
volts, therefore check for problems in the wiring to J7. If necessary measure the resistance of
the pilot conductor (J7 pin 1) to chassis ground (J7 pin 2). Remember problems could be on the
vehicle side as well. This alarm will clear automatically when the short circuit condition is
removed.
Code 211 – Overvoltage
This alarm indicates that the charge controller has detected AC line voltage in excess of 270
Vac. This alarm will only set when charging or trying to charge. It will not set during standby
operation or when the vehicle is still connected after charging completed. When the
overvoltage alarm sets, the alarm condition will persist for a minimum of one minute, after
which time the alarm will clear when voltage drops to 265 Vac or below.
Code 212 – Undervoltage
This alarm indicates that the charge controller has detected AC line voltage below 170 Vac.
This alarm will only set when charging or trying to charge. It will not set during standby
operation or when the vehicle is still connected after charging completed. When the
undervoltage alarm sets, the alarm condition will persist for a minimum of one minute, after
which time the alarm will clear when voltage rises to 177 Vac or above.
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