3G5A2-RPT01-PE datasheet(89/182 Pages) OMRON

89 / 182 page

5-1

Error Messages and Alarm Outputs

When an error occurs after operation has once started, an error code is set in

Word A400. If two or more errors occur simultaneously, the error code having the

highest priority is set. In the following table, the error having the highest priority is

shown at the top of each column.

The status of indicators for which status is not show does not affect the error con-

dition.

Startup Errors

Item

Cause

CPU indicators

Peripheral

Device error

Power

RUN ERROR WDT ALARM OUT INT

COMM

Device error

message

Start input wait

START input of

CPU Rack Power

Supply Unit is OFF.

Lit

Unlit

---

CPU WAITING

No SYSMAC

BUS terminator

Terminator is not

set.

Lit

Unlit

---

CPU WAITING

CPU Bus Unit

initialization

Terminator of

SYSMAC BUS/2 is

missing, or CPU

Bus Unit is still

initializing.

Lit

Unlit

---

CPU WAITING

I/O verify error

(PC Setup)

I/O Unit has been

removed.

Lit

Unlit

---

Lit

---

CPU WAITING

Startup Errors (cont’d)

Item

RUN

Auxiliary Area data

Corrective action

output

Error flags

Error

code

Start input wait

OFF

A30600 ON

None

Turn ON the CPU Rack Power Supply Unit START

input, or short-circuit the START input terminals.

No SYSMAC BUS

terminator

OFF

A30602 ON

None

Turn on the power to the Remote I/O Slave Unit.

Specify the Unit connected last as the terminator or wait

until CPU Bus Units complete initialization.

CPU Bus Unit initialization

OFF

A30603 ON

None

Turn on the power to the Remote I/O Slave Unit.

Specify the Unit connected last as the terminator.

I/O verify error

(PC Setup)

OFF

A30601 ON

A40209 ON

00E7

Verify the I/O table. Correct the table if necessary by

create a new one.

Error Messages and Alarm Outputs

Section 5-1

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