Chapter 6 - troubleshooting and fault information, Fault information, Troubleshooting and fault information – Rockwell Automation 160 SER A FRN 1.XX-4.XX User Manual

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Chapter

Troubleshooting and Fault Information

6–1

Fault Information

Figure 6.1 - Fault Display

P07 - [Last Fault]

Fault Code Number

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., 22) 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 TB3 stop input signal 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 200-240 VAC,

undervoltage trip occurs at 210 VDC bus voltage

(equivalent to 150 VAC incoming line voltage).

For controllers rated at input voltage 380-460

VAC, undervoltage trip occurs at 390 VDC bus

voltage (equivalent to 275 VAC 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 200-240 VAC,

overvoltage trip occurs at 410 VDC bus voltage

(equivalent to 290 VAC incoming line voltage).

For controllers rated at input voltage 380-460

VAC, overvoltage trip occurs at 815 VDC bus

voltage (equivalent to 575 VAC 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.