SEAL 0041963 - Caterpillar

Operating Modes
Most of the operating modes have several states that occur in the mode. The mode and the state are displayed on the LCD display. The LCD display is located on the front panel.
Illustration 1 g00665386
"Online" Mode"Online" - "Online" Mode is the standard operating mode for the system. When the system is in this mode, the load is protected. The system is capable of discharging in order to support the load.
Illustration 2 g00665387
Bypass ModeBypass - Bypass Mode directly connects the incoming utility to the system load. When the system is in the bypass mode, the load is not protected. The load can be affected by a disruption of incoming power."Online"
"Online" Charging - The system enters this state when the flywheel reaches 4000 RPM. The system is charging in this state. The system can sustain discharge in this state. When the speed of the flywheel is greater than 7700 RPM, the system enters the "Online Standby" state."Online" Standby - When the speed of the flywheel reaches 7700 RPM, the system is in the "Online standby" state. This is rated idle speed for the flywheel.
Illustration 3 g00665388
Discharge State"Online" Discharging - The system is in this state when the unit is supplying power to the load. If there is a disruption in power, the system will change to this state.Bypassed
The Bypass mode is entered by one of the following events:
Start-up
The Keyswitch (Manual)
Failure to Recover From a Fault
No LoadRepeated errors that cause the system to oscillate between the bypass mode and "Online" mode can lock the system into the bypass mode. When the system is locked in the bypass mode, the user must change the mode of the system."Bypassed-Verify Signals" - When the system is in this state, the system verifies that the correct system telemetry is present. This state is used when you are starting the system and the state is used during the recovery of errors."Bypassed-Auto Start" - This is the default state at start-up. The system cannot immediately protect the load after the system is started. The system remains in the bypass mode until the system is charged and able to sustain a discharge. During the "Bypassed-Auto Start" state, the flywheel must achieve a rate of 4000 RPM before changing to the "Online" mode."Bypassed-Self Discharge" - This state stops the flywheel electrically. This state is used in order to prepare the system to be moved. Also, this state is used in order to secure the system for maintenance. The "Bypassed-Self Discharge" mode can be entered once in a 24 hour time period.Emergency Shutdown
The Mode for Emergency Shutdown is reached by pressing the local Emergency Power Off switch or by pressing the remote Emergency Power Off switch. The system is electrically isolated from the load and from the power supply in the shutdown mode. The isolation prevents power from being delivered to the load or to the system.Note: The critical load will lose power.
Illustration 4 g00682516
(1) Emergency Power Off Reset ButtonThe emergency power off reset button must be used after an emergency power off