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8
Operation
8.1
Operating Instructions (4400 UPS 15-30kVA)
Before operation of 4400 Series UPS and ESS system, initial startup must be performed by Authorized Service Personnel
(ASP). The ASP must set the voltage and charge current parameters in the UPS and program external input/output termi-
nals. These actions should be done in accordance with the 4400 IO Manual.
Starting the UPS and Charging the Batteries
1. Turn on the 4400 Series UPS. Wait until the display appears, the converter turns on, and the unit becomes fully en-
ergized (around 1 minute). Press the "RUN" button on the touch screen to switch the UPS to "ONLINE" mode. If the
UPS is already online, proceed to step 2 to start the charging the SCiB ESS batteries.
2. Turn on the control power to the ESS SCiB cabinet by turning on the control breaker (CB1). If you have more than
one cabinet, turn on the control power to each cabinet by turning on CB1. If you have more than one cabinet, then
the control breakers must all be turned on in less than 30 seconds so the Host cabinet can detect how many clients
are connected through the CAN communication.
3.
Wait until the fault light blinks 2 times on the cabinet. If there are multiple cabinets, then wait until all cabinets have
their fault light blinking 2 times every 8 seconds.
4. Turn on the Main Breaker (MCCB) on the cabinet. If you have multiple cabinets, then turn on each main breaker
(MCCB) on every cabinet within 30 seconds. The red fault light will turn off once the breaker is closed on the cabinet
unless there are other faults.
5. The green and red LEDs will start scanning to indicate the unit is being initialized. The Host cabinet will communicate
to each cabinet and determine the cabinet with the lowest voltage and then that cabinet will close it's contactors. The
cabinet will charge up to the level of the next cabinet with the lowest voltage and then that cabinet's contactors will
close. This process will continue until all the cabinets have closed their contactors and then the system will charge up
to the final voltage.
6. The "Ready" LED will blink if the battery voltage is below 280VDC. Once the voltage exceeds 280VDC, the "Ready"
light will stop blinking and become steady on to indicate the batteries are fully charged.
Discharging the Batteries
1. The SCiB ESS will provide power to the UPS if the main power of the UPS is lost.
2. The "Discharge" LED is illuminated to indicate the battery cabinet is discharging and the "Ready" and "Fault" LED will
be off.
3. The "Discharge" LED will be steady on.
4. As the ESS battery voltage comes down and gets close to the UPS cutoff or shutdown set point (215VDC), the "Dis-
charge" LED will start blinking indicating the SCiB ESS is close to the shutdown voltage.
5. As the UPS hits the setpoint for the shutdown voltage, the UPS will shutdown. When this happens, the control power
on the SCiB ESS will turn off and the UVR in the MCCB1 of the SCiB ESS will be activated and will trip the MCCB1
breaker.
Anytime control power is lost to the SCiB ESS, the MCCB1 breaker will trip
due to the UVR. This could be due to the control power breaker (CB1) in the
ESS being turned off while MCCB1 is in the "ON" position or after a battery
backup where the UPS hits the shutdown setpoint before power is restored.
288V SCiB Energy Storage System Installation and Operation Manual – 203810-000
NOTICE
27
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