Rockwell Automation 8720MC 8720MC Regenerative Power Supply User Manual - Manual (Page 84)

5-8 Start and Adjustment
Step 5.6 Press the PRG key.
The display shows "U.---"
indicating that the User
parameters can be accessed.
Step 5.7 Press the PRG key.
The operation panel returns to
monitor mode, and the display
indicates the input current, with
the "A" status LED turned ON.
This display shows that the
input current is 5 Amps.
Step 5.8 Press the key.
The display shows the AC input
power voltage and the "V"
status LED turns ON. This
display shows that the input
power voltage is 412 V.
Step 5.9 Press the key.
The display indicates the DC
bus voltage and the "V" status
LED turns ON. Verify that the
DC bus voltage is almost same
as the reference value (U.000).
Step 6. Discharging
In this step, you will turn the RUN sequence signal OFF. When the
RUN sequence signal is turned OFF, the 8720MC-RPS
Regenerative Power Supply starts discharge operation, stops the
PWM switching and turns magnetic contactor OFF.
Step 6.1 Turn the RUN sequence control signal OFF.
The discharge operation starts,
and the PWM switching stops.
Turn the main magnetic
contactor OFF. When the
discharge operation is
completed, the DC bus voltage
drops to 50 V or lower. The
display shows the DC bus
voltage is 12 V.
RST PRG ENT
READY READY
FAULT FAULT
PROGRAM PROGRAM kW kW
V
A
RST PRG ENT
READY READY
FAULT FAULT
PROGRAM PROGRAM kW kW
V
A
RST PRG ENT
READY READY
FAULT FAULT
PROGRAM PROGRAM kW kW
V
A
RST PRG ENT
READY READY
FAULT FAULT
PROGRAM PROGRAM kW kW
V
A
RST PRG ENT
READY
FAULT
PROGRAM kW
V
A