Rockwell Automation 8720MC 8720MC Regenerative Power Supply User Manual - Manual (Page 101)

7-9 Parameters
ATTENTION: Only qualified electrical personnel familiar with the construction and
operation of this equipment and the hazards involved should change this parameter.
Read and understand this instruction manual in its entirety before proceeding.
Failure to change parameter values could result in destruction of the equipment,
severe bodily injury or loss of life.
!
F.008 Bus Low Voltage Detection Level
This parameter sets the
voltage level to detect the
DC bus low voltage error. Parameter Range: 200 to 600 V
Default Setting: 400 V
Parameter Type: Requiring the password, configurable only while the unit stops
Refer also to Parameters: U.000 DC Bus Voltage Reference
F.001 Unit Selection
F.007 Bus Overvoltage Detection Level
When the DC bus voltage reaches the set value of the Bus Low Voltage Detection Level, the DC bus low
voltage error will be detected. Detection of the error will stop the PWM switching, start the discharge
operation, and stop operation.
ATTENTION: Only qualified electrical personnel familiar with the construction and
operation of this equipment and the hazards involved should change this parameter.
Read and understand this instruction manual in its entirety before proceeding. Failure
to change parameter values could result in destruction of the equipment, severe bodily
injury or loss of life.
!
F.009 AC Overvoltage Detection Level
This parameter sets the
voltage level to detect the
AC input power
overvoltage error. Parameter Range: 200 to 550 V
Default Setting: 550 V
Parameter Type: Requiring the password, configurable only while the unit stops
Refer also to Parameters: F.001 Unit Selection
When the AC input power voltage reaches the set value of the AC Overvoltage Detection Level, the AC
overvoltage error will be detected. Detection of the error will stop the PWM switching, start the discharge
operation, and stop operation.
When the AC Overvoltage Detection Level is carelessly set lower than the AC input power voltage, the AC
overvoltage error cannot be reset. In such a case, use the following steps to reset the AC overvoltage error.
Step 1. Press the PRG key while the "AC" error is shown on the display. The operation panel will be in
program mode, and the display will show "U.---".
Step 2. Press the key or the key until "F.---" will be shown in the display.
Step 3. Press the ENT key. The display will show "F.000".
Step 4. Press the ENT key. The display will show "0".
Step 5. Set the password (55), and press the ENT key. The display will show "F.000".
Step 6. Press the key or the key until "F.009" will be shown in the display.
Step 7. Press the ENT key. The display will show the AC Overvoltage Detection Level.
Step 8. Press the key to increment the set value to an adequate value.
Step 9. Press the ENT key to decide the set value. The display will show "F.009".
Step 10. Press the PRG key. The display will show "AC".
Step 11. Press the RST key or enter the RST sequence signal. Resetting "AC" will return to monitor mode.
ATTENTION: Only qualified electrical personnel familiar with the construction and
operation of this equipment and the hazards involved should change this parameter.
Read and understand this instruction manual in its entirety before proceeding. Failure
to change parameter values could result in destruction of the equipment, severe bodily
injury or loss of life.
!