Conair B32 User Manual

Page 58

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Basic 32 Loader Control UGC007/0702

D-4 Fault Messages and Error Codes

0016

STARTUP
PROTECTION FAULT

The user fault routine was executed
at power-up, prior to the main ladder
program. Bit S:1/13 (Major Error
Halted) was not cleared at the end of
the User Fault Routine. The User
Fault Routine ran because bit S:1/9
was set at power-up.

Recoverable

Either reset bit S:1/9 if this is consistent
with the application requirements, and
change the mode back to RUN, or

clear S:1/13, the Major Error Halted bit,
before the end of the User Fault Routine.

0017

NVRAM/MEMORY
MODULE USER
PROGRAM
MISMATCH

Bit S:2/9 is set in the controller and
the memory module user program
does not match the controller user
program.

Non-Recoverable

Transfer the memory module program to the
controller and then change to Run mode.

0018

MEMORY MODULE
USER PROGRAM
INCOMPATIBLE WITH
OS

The user program in the memory
module is incompatible with the OS.

Non-User

Upgrade the OS using ControlFlash to be
compatible with the memory module.

Obtain a new memory module.

Contact your local Rockwell Automation
representative for more information about
available operating systems your
controller.

001A

USER PROGRAM
INCOMPATIBLE WITH
OS AT POWER-UP

The user program is incompatible
with the OS.

Non-User

Upgrade the OS using ControlFlash.

Contact your Conair Service

representative for more information about
available operating systems your
controller.

0020

MINOR ERROR AT
END-OF-SCAN
DETECTED

A minor fault bit (bits 0-7) in S:5 was
set at the end of scan.

Recoverable

Correct the instruction logic causing the
error.

Enter the status file display in your
programming software and clear the fault.

Enter the Run mode.

0021

EXPANSION POWER
FAIL (EPF)
(MicroLogix 1500 only)

A power failure is present on the
expansion I/O bank.
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.

Non-User

Re-apply power to the expansion I/O bank.
See Important note below.

IMPORTANT

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
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
EXPIRED, SEE S:3

The program scan time exceeded the
watchdog timeout value (S:3H).

Non-Recoverable

Determine if the program is caught in a
loop and correct the problem.

Increase the watchdog timeout value in
the status file.

0023

STI ERROR

An error occurred in the STI
configuration.

Recoverable

See the Error Code in the STI Function File for
the specific error.

Error
Code
(Hex)

Advisory Message

Description

Fault
Classification

Recommended Action

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