GE Industrial Solutions WattStation Pedestal EVSE Charger Operation and Maintenance - Manual (Page 55)

WattStation™ EV Charger User Manual
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It is possible with ungrounded power sources that unintentional “parasitic” leakage paths to ground
will be sufficient for the ground monitor circuit to be satisfied at times, so this fault may only
sporadically appear.
The WattStation Pedestal is designed to operate correctly from either centrally grounded
(e.g. L1 – N – L2) or end-grounded (e.g. Line – Neutral) power sources. O
Onn eenndd--ggrroouunnddeedd ppoow weerr
ssoouurrcceess m maakkee ssuurree tthhee ““hhoott”” m maaiinn iiss ccoonnnneecctteedd ttoo tthhee LL11 iinnppuutt aanndd tthhee nneeuuttrraall m maaiinn
iiss ccoonnnneecctteedd ttoo tthhee LL22 iinnppuutt..
C Cooddee 221155 –– C Chhaarrggee C Coonnttrroolllleerr ccoom mm muunniiccaattiioonn ffaauulltt
This alarm indicates that the charge controller has stopped communicating with the communication
controller. This should be a transient condition which should automatically clear. If not, try cycling AC
power until the condition clears. If persistent the charge controller and/or the communication
controller will need to be replaced.