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Override of charging
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Charging delay
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Diagnostics
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Ground fault
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Loss communication
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RFID failure
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Un-authorized users
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Contactor monitor
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Overload
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Over/Under voltage
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Invalid payment
3.6.2
Building Management Systems
The Networked Wallmount WattStation will communicate to building management systems (BMS)
via Modbus over the CAT5 connection or WiFi. The EVSE comes with a Modbus register map that
the BMS integrator can integrate into their SCADA or server system(s).
Note: Static IP addressing should be used for the WattStation(s) and all Modbus clients.
3.6.3
Firmware Updates
The firmware for the EVSE will be upgradeable over the EVSE’s TCP/IP interface (CAT5 or wirelessly
through the cellular router or WiFi Access Point). The firmware updates will allow GE to supply
customers with updated firmware that adds additional features to flexible charging algorithms,
ground fault detection performance, pricing models, communication protocols and other
performance enhancements. All firmware updates will be accessed and controlled through the GE
WattStation Connect.
3.7
Technical Details
SAE Compliant
Level II per J1772
Vehicle Interface
SAE J1772 EV connector
Cable Length
25’ cable
AC Max Charging Power Output**
7.2 kW (240VAC @ 30A)
Voltage and Rated current
208-240VAC @ 30A
AC Power Input
208-240VAC requiring only Line 1 and Line 2, or Line and Neutral, and
Earth ground
Short Circuit Rating
5kA @ 240 VAC
Recommended Service Panel Breaker
2-pole 40A breaker on dedicated circuit
Ground Fault Protection
Internal 20mA CCID with auto-re-closure, does not require a GFCI in
service panel
Cold Load Start
Random start up between 0 and 5 minutes
Local Area Network
IEEE 802.3 (“Ethernet”) compliant: 10BASE-T, 100BASE-TX
Network Communication Protocol
TCP/IP
Network Security
GE recommends that network be VPN and Firewall protected
Cellular Router (Optional)
EV-DO / HSPA
WiFi (Optional)
IEEE 802.11b/g compatible with Antenna
Metering Accuracy
< +/-2% accurate for all values (Current, Voltage, Power & Energy)
RFID Reader
HID MultiClass RP15
Display
LED Icons
Standby Power
10W typical