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PowerFlex 40 and 400 Drive Control Logic
F232120
28
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AC Drive Diagnostics/Parameter
Viewing
PowerFlex Integrated Keypad
The PowerFlex series AC drives have an integral
keypad that can be used for viewing and editing
parameter values. No external parameter unit is
required, however an external hand-held parameter
unit is available (22-HIM-A3) that can provide a user-
friendly method of viewing and editing parameter
values in hard-to-access locations.
Integral Keypad
The integral keypad displays several main menu group
selections such as “d”, “P”, and “A” as described
below. Within the Display Group is a fault storage
buffer that stores the last three AC drive fault codes.
Refer to the Fault Display and Troubleshooting
Information Section for more information.
Figure 18
PHM640N
Number LED LED State Description
1
Display Steady Red Indicates parameter number, parameter value, or fault code.
Flashing Red Single digit flashing indicates that digit can be edited. All digits flashing
indicates a fault condition. See table below.
2
Displayed Units Steady Red Indicates the units of the parameter value being displayed.
3
Fault Status Flashing Red Indicates drive is faulted.
4
Start Key Status Steady Green Indicates Start key on Integral Keypad is active. The Reverse key is also
active unless disabled by A095
(Reverse Disable).
5
Pot Status Steady Green Indicates potentiometer on Integral Keypad is active.
6
Program Status Steady Red Indicates parameter value can be changed.
7
Run/Direction
Status
Steady Red Indicates drive is running and commanded motor direction.
Flashing Red Drive has been commanded to change direction. Indicates actual motor
direction while decelerating to zero.
5
RUN
FWD
REV
VOLTS
PROGRAM
AMPS
HERTZ
FAULT
POWERFLEX LED DISPLAYS
7
1
4
3
6
2