Chapter 6, Troubleshooting and fault information, Fault information – Rockwell Automation 160 AC DRIVE SER B/FRN 5-6.XX User Manual

Page 40: Fault led – (without program keypad module), Tips to clear a fault

Chapter 6

Troubleshooting and Fault Information

6-1

Fault Information

Figure 6.1 – Fault Display

P07 – [Last Fault]

Fault Code Number

➀

See Table 6.A below for fault descriptions.

Controllers equipped with a program keypad
module will flash the display when a fault is
present. If a fault occurs, parameter 07 – [Last
Fault] displays. You can cross reference the
number that appears on the display (e.g., 04) with
the fault numbers listed in Table 6.A.

Fault LED – (Without Program Keypad
Module)

Controllers without a program keypad module
come equipped with a fault LED. When the fault
LED illuminates, a fault condition exists.

Tips To Clear a Fault

Important: If a fault occurs, it is important to
address and correct the fault as well as the
condition that caused the fault.

To clear a fault, perform one of the following:

D Press the program keypad’s stop button.
D Cycle power to the controller.
D Cycle the input signal at TB3-8 to the

controller

D Set P54 – [Clear Fault] parameter to a “1”.

Table 6.A – Bulletin 160 Fault Descriptions

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Fault

Number

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Fault

Indication

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Fault Description

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Corrective Action

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Power Loss

Fault

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DC Bus voltage remains below 85% nominal on
power up for longer than 5 seconds.

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Monitor incoming AC line for low voltage or line
power interruption.

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Under Voltage

Fault

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DC Bus voltage fell below the minimum. For
controllers rated at input voltage 200 – 240V AC,
undervoltage trip occurs at 210V DC bus voltage
(equivalent to 150V AC incoming line voltage).
For controllers rated at input voltage
380 – 460V AC, undervoltage trip occurs at
390V DC bus voltage (equivalent to 275V AC
incoming line voltage).

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Monitor incoming AC line for low voltage or line
power interruption.

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Over Voltage

Fault

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DC Bus maximum voltage exceeded. For
controllers rated at input voltage 200 – 240V AC,
overvoltage trip occurs at 410V DC bus voltage
(equivalent to 290V AC incoming line voltage).
For controllers rated at input voltage
380 – 460V AC, overvoltage trip occurs at
815V DC bus voltage (equivalent to 575V AC
incoming line voltage).

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Bus overvoltage caused by motor regeneration.
Monitor incoming AC line for excessive voltage.
Extend the decel time or install dynamic brake
module or external capacitor module. See
Appendix A.