Rockwell Automation Publication 750-RM100A-EN-P - August 2019 35
Energy Pause Function Chapter 5
Owned State
After powerup and when AC precharge is complete, the function moves to the
Owned state. The Owned state is the traditional operating state. The line side
converter is energized and can modulate. The motor side inverter is energized
and can modulate.
In the Owned state, the function waits for an Energy Pause command. If it
receives one, it moves to the Paused state. An Energy Pause command is ignored
if the line side converter and the motor side inverter are not modulating.
You must set parameter 0:63 [LS Start Mode] to 2 ‘Conv Logic’ to use energy
pause.
Paused State
In the Paused state, the product disconnects three-phase power from the LCL
filter module and line side converter. In frames 7...15, it disconnects three-phase
power by opening the precharge circuit breaker (MCB). It also lowers the speed
of the heatsink fans in the LCL filter and power modules.
Frame 5…6 drives do not have internal precharge circuit breakers. A digital
output controls a contactor that disconnects the whole product from three-phase
power.
To operate the contactor pilot coil, the contactor is wired to a digital output on
an I/O option module.
In this state, the function clears faults that naturally occur as a result of the three-
phase power being disconnected.
In the Paused state, the product waits for an Energy Resume command. If it
receives one, it moves to the Resuming state. For frame 5…7 drives the HMI
indicates a drive status of ‘in precharge’.
Resuming State
The Resuming state moves the product from the Paused state back to the Owned
state. It reconnects three-phase power and then performs the AC precharge.
In this state, the Energy Pause function clears faults that occur as a result of the
three-phase power being disconnected.
The function moves to the Owned state when AC precharge is complete.
To Next Page
Loading...
Need help?
General
