Rockwell Automation 20Y PowerFlex Active Front End User Manual
Page 83
Rockwell Automation Publication 20Y-UM001E-EN-P - July 2014
83
Startup
Chapter 3
4.
Enter the Input Voltage Selection in the Start-up Routine.
Select the appropriate AC input voltage for your installation (480, for
example). To accept each default setting, press Enter.
5.
Enter the Alarm/Flt Cnfg selection.
The Alarm/Flt Cnfg sets parameters 120 [Fault Config] and 135 [Alarm
Config]. For basic applications, the default settings can be used. To accept
each default setting, press Enter.
6.
Enter the Limits section.
For basic applications, the default settings for the parameters 75 [Motor
Power Lmt], 76 [Regen Power Lmt], and 77 [Current Lmt Val] can be
used. By default, [Regen Power Lmt] and [Current Lmt Val] are set to let
maximum peak power flow from the DC bus to the AC line, and prevent
DC bus overvoltage faults on the inverters. To accept each default setting,
press Enter.
7.
Enter the DC Bus Ctrl section of the Start-up routine.
By default, the DC bus voltage reference is set to come from parameter 61
[DC Volt Ref ]. With this setting, the DC Volt Ref is calculated based on
the selected AC input voltage. For basic applications, this setting for the DC
bus voltage reference is sufficient. To accept each default setting, press Enter.
8.
Enter the Start/Stop/IO section.
Parameters 221…225 [Digital In 1-5 Sel] and parameters 228, 229, and
233 [Digital Out 1-3 Sel] are set to run the AFE from the operator
switches on the AFE door (see
for the typical I/O
wiring diagram). The AFE can also be run through a network
communication adapter by changing Digital Input 1 from ‘Run’ to ‘Not
Used’, and sending a Start command through the communication adapter.
(For DPI communication details, see
.) To accept each default setting, press Enter.
Analog Outputs can also be programmed through this procedure if
desired.
9.
Disable the AFE output when the AFE is not active (not modulating).
This can be done by either connecting the ‘Inverter Enable’ output of the
AFE to the variable frequency drive’s enable input, or by enabling
parameter 132 [Contact Off Cnfg] to force the main contactor off in case
of a fault. This ensures that once the AFE stops modulating, there is no
motoring current flowing through the AFE IGBT diodes. Failure to
disable the AFE output can result in component damage or a reduction in
product life.
When enabling parameter 132, see
for details. The AFE is
shipped with parameter 132 disabled. This will not stop or shut down DC
output when a fault occurs.
10.
Select Done/Exit to complete the Assisted Start-up procedure.