5
5.2. Charge operation
5.2.1. Charger idle display: With the charger in wait mode (no battery
connected) and without pressing the Stop/Start button, the display
will show the following information:
5.2.2. Connect battery: Make sure the charger connector(s) matches the
battery connector(s). Plug the charger connector(s) to the battery
connector(s). For chargers with dual connectors, both connectors
must be connected in order to start a charge.
5.2.3. NexSys
®
iON Li-ion batteries come with specific type of connector.
The NexSys
®
+ charger comes with one or two connectors (LI
Connector) depending on the charger model. When the charger
is equipped with two connectors, both connectors must be
connected, otherwise charge cycle will not start. Always connect
connector 1 first. All NexSys iON charger connectors are equipped
with arcless option called Late Make Early Break to prevent arcing
if battery is disconnected while charging.
5.2.4. When CAN communication is established between the NexSys
iON battery and charger, “BMS CONNECTED” will appear on the
display screen. If the text “BMS CONNECTED” is NOT shown, the
charge cycle will not start. Check CAN wiring and battery.
Reference
Description
1
Charger DC Voltage
2
Firmware Version
3
Selected Charge Profile
4
System Time and Date
5
Connect Battery
5.3. Connectors for NexSys iON Batteries
5.4. Start charging
When a battery is connected to the charger, the control board senses the
voltage and after a short delay, the charger starts charging the battery
automatically if auto start is set to ON. Push the Stop/Start button if the
battery is already connected. When charging a NexSys iON battery, the
CAN communication between the battery and charger is established
and the message “BMS CONNECTED” will be displayed on the screen.
After few seconds, the battery will close the charge contactor to initiate
the charge. The charger will start the countdown process and will start
displaying the charge information.
5.4.2. Without a Wi-iQ
®
Device: If the Wi-iQ device adapter is not enabled
or no Wi-iQ devices are in range, effective charging starts after
the programmed delay. The charger uses Profile, Capacity and
Temperature settings programmed in the Configuration menu.
5.4.3. PAIRING with a Wi-iQ Device: If one or more Wi-iQ device adapters
are in range, the charger will turn on and apply current to the battery.
The display will show “SCAN” followed by “IQLINK”. This routine
determines which Wi-iQ device in range is connected to the battery
charger. Once the charger makes the determination, it downloads
data from Wi-iQ device, displays the battery S/N, updates the profile
capacity, and temperature for charging, and starts the main charge.
5.4.4. Charging current (2) is determined by the battery voltage and state
of the charge condition. Charging current declines automatically as
battery voltage rises during the charge. As the battery charges, the
graphical display will output various charge parameters including
the percentage of battery capacity (6).
When charging a NexSys iON battery, the battery BMS controls
the charge current and voltage. During the charge cycle, the BMS
through the CAN will send information to the charger to start,
stop and output the desired current and voltage. If the CAN is lost
during charge cycle, the charger will stop the charge and show the
off-charge display without the message “BMS CONNECTED”.
5.4.1. Delayed Start: If the charger was programmed for delayed start,
charging will begin following that delay. When the battery is
plugged in to the charger, the display shows the time remaining
before the programmed charging starts.
Reference
Description
1
Charge voltage (total V and V/c), alternates with AH returned
2
Charge current
3
Battery S/N from Wi-iQ battery monitoring device
Li-ion only: Max current and voltage requested by BMS
4
Battery temperature, alternates with battery capacity
5
Charge time
6
Percent of charge
7
USB connection
8
Wi-iQ device link
9
Wi-iQ device warnings
