Rockwell Automation 22C PowerFlex 400 AC Drive FRN 1.xx - 7.xx User Manual

Page 136

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4-2

Troubleshooting

PowerFlex 400 Adjustable Frequency AC Drive FRN 1.xx - 7.xx User Manual
Publication 22C-UM001I-EN-P

Fault Indication

Manually Clearing Faults

Automatically Clearing Faults

Auto Restart (Reset/Run)

The Auto Restart feature allows the drive to automatically perform a
fault reset followed by a start attempt without user or application
intervention. This allows remote or “unattended” operation. Only certain
faults are allowed to be reset. Certain faults (Type 2) that indicate
possible drive component malfunction are not resettable.

Caution should be used when enabling this feature, since the drive will
attempt to issue its own start command based on user selected
programming.

Condition

Drive is indicating a fault.
The integral keypad provides
visual notification of a fault
condition by displaying the
following.

Flashing fault number

Flashing fault indicator

Press the Escape key to regain
control of the integral keypad.

Step

Key(s)

1. Press Esc to acknowledge the fault. The fault information will be

removed so that you can use the integral keypad.
Access

b007

[Fault 1 Code] to view the most recent fault information.

2. Address the condition that caused the fault.

The cause must be corrected before the fault can be cleared.
See

Table 4.A

.

3. After corrective action has been taken, clear the fault by one of these

methods.

Press Stop if

P037

[Stop Mode] is set to a value between “0” and “3”.

Cycle drive power.

Set

A197

[Fault Clear] to “1” or “2”.

Cycle digital input if

T051

-

T054

[Digital Inx Sel] is set to option 10 “Clear

Fault”.

Option / Step

Clear a Type 1 fault and restart the drive.
1. Set

A163

[Auto Rstrt Tries] to a value other than “0”.

2. Set

A164

[Auto Rstrt Delay] to a value other than “0”.

Clear an OverVoltage, UnderVoltage or Heatsink OvrTmp fault
without restarting the drive.
1. Set

A163

[Auto Rstrt Tries] to a value other than “0”.

2. Set

A164

[Auto Rstrt Delay] to “0”.

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