D-4Fault Messages and Error Codes

Error

Advisory Message

Description

Fault

Recommended Action

Code

 

 

 

 

Classification

 

(Hex)

 

 

 

 

 

 

 

 

 

 

 

0016

STARTUP

The user fault routine was executed

Recoverable

• Either reset bit S:1/9 if this is consistent

 

PROTECTION FAULT

at power-up, prior to the main ladder

 

with the application requirements, and

 

 

 

 

program. Bit S:1/13 (Major Error

 

change the mode back to RUN, or

 

 

 

 

Halted) was not cleared at the end of

 

• clear S:1/13, the Major Error Halted bit,

 

 

 

 

the User Fault Routine. The User

 

before the end of the User Fault Routine.

 

 

 

 

Fault Routine ran because bit S:1/9

 

 

 

 

 

 

was set at power-up.

 

 

 

 

 

 

 

0017

NVRAM/MEMORY

Bit S:2/9 is set in the controller and

Non-Recoverable

Transfer the memory module program to the

 

MODULE USER

the memory module user program

 

controller and then change to Run mode.

 

PROGRAM

does not match the controller user

 

 

 

MISMATCH

program.

 

 

 

 

 

 

 

0018

MEMORY MODULE

The user program in the memory

Non-User

• Upgrade the OS using ControlFlash to be

 

USER PROGRAM

module is incompatible with the OS.

 

compatible with the memory module.

 

INCOMPATIBLE WITH

 

 

• Obtain a new memory module.

 

OS

 

 

• Contact your local Rockwell Automation

 

 

 

 

 

 

 

 

 

 

 

 

representative for more information about

 

 

 

 

 

 

available operating systems your

 

 

 

 

 

 

controller.

 

 

 

 

 

001A

USER PROGRAM

The user program is incompatible

Non-User

• Upgrade the OS using ControlFlash.

 

INCOMPATIBLE WITH

with the OS.

 

• Contact your Conair Service

 

OS AT POWER-UP

 

 

representative for more information about

 

 

 

 

 

 

available operating systems your

 

 

 

 

 

 

controller.

 

 

 

 

 

0020

MINOR ERROR AT

A minor fault bit (bits 0-7) in S:5 was

Recoverable

• Correct the instruction logic causing the

 

END-OF-SCAN

set at the end of scan.

 

error.

 

DETECTED

 

 

• Enter the status file display in your

 

 

 

 

 

 

programming software and clear the fault.

 

 

 

 

 

 

• Enter the Run mode.

 

 

 

 

 

0021

EXPANSION POWER

A power failure is present on the

Non-User

Re-apply power to the expansion I/O bank.

 

FAIL (EPF)

expansion I/O bank.

 

See Important note below.

 

(MicroLogix 1500 only)

This error code is present only when

 

 

 

 

 

 

the controller is powered, and power

 

 

 

 

 

 

is not applied to the expansion I/O

 

 

 

 

 

 

bank. This is a self-clearing error

 

 

 

 

 

 

code. When power is re-applied to

 

 

 

 

 

 

the expansion I/O bank, the fault is

 

 

 

 

 

 

cleared. See Important note below.

 

 

 

 

 

 

 

 

 

 

 

 

 

If this fault occurs while the system is in the RUN mode, the controller faults. When expansion I/O

 

 

 

 

power is restored, the controller clears the fault and re-enters the RUN mode.

 

 

 

 

If you change the mode switch while this fault is present, the controller may not re-enter the RUN mode

 

 

IMPORTANT

 

 

 

 

when expansion I/O power is restored.

 

 

 

 

 

 

 

 

 

 

If an EPF condition is present and expansion I/O power is OK, toggle the mode switch to PROGRAM and

 

 

 

 

then to RUN. The fault should clear and the controller enters the RUN mode.

 

 

 

 

 

0022

WATCHDOG TIMER

The program scan time exceeded the

Non-Recoverable

• Determine if the program is caught in a

 

EXPIRED, SEE S:3

watchdog timeout value (S:3H).

 

loop and correct the problem.

 

 

 

 

 

 

• Increase the watchdog timeout value in

 

 

 

 

 

 

the status file.

 

 

 

 

 

0023

STI ERROR

An error occurred in the STI

Recoverable

See the Error Code in the STI Function File for

 

 

 

 

configuration.

 

the specific error.

 

 

 

 

 

 

 

Basic 32 Loader Control UGC007/0702