Miller 300618003 Manual del usuario - Página 32

Navegue en línea o descargue pdf Manual del usuario para Sistema de soldadura Miller 300618003. Miller 300618003 44 páginas.

Imprimir página

9-2. Diagnostics

The following error messages are shown on the

upper and lower displays to indicate specific errors.

Explanations are in the text below:

ERR

COM1

Indicates a

Indicates a trigger

communication

error.

LED3-Related Error Indications

Error conditions are indicated by LED3 on

PC1. To view LED3, turn Off unit, remove

wrapper, and turn unit On. LED3 is most easily

observed from the left side of the unit.

The LED blinks in a 2.5 second cycle. The

number of blinks in this period indicates the

type of error.

The priority of the errors is related to the num-

ber of blinks indicating the error. The more

blinks, the more severe the error (motor error

is top priority). A higher priority error overrides

a lower one (if a motor error and a communica-

tion error existed, the light would blink four

times for the motor error).

Since blink On time and blink Off time are

equal in a four-blink cycle, the four−blink se-

quence appears as a constant blink.

1 blink = Communication Error

2 blinks = Trigger Error

3 blinks = Tach Error

OM-1500-9 Page 28

ERR

TRG1

TCH1

Indicates a

tachometer error.

4 blinks = Motor Error

ERR COM1

• The communication error occurs 2.5 sec-

onds after a loss of communication between

the motor and front panel boards. The user

may continue to weld with this error. The er-

ror may be cleared by resetting the unit (see

Section 6-10).

ERR TRG1

• The trigger error occurs if the user has the

trigger held for more than two minutes with-

out striking an arc, or if the user holds the

trigger past the postflow phase in a timed

weld. This error also occurs if the trigger is

held when the feeder is powered up. The er-

ror may be cleared by releasing the trigger.

ERR TCH1

• The tach error occurs 2 seconds after the

loss of tachometer feedback. The user may

continue to weld with this error. The motor

Front panel is shown removed for purpose of

illustration only. In actual use, front panel

would be in place.

ERR

MTR1

Indicates a motor

No gas flow

error.

detected.

speed is regulated through the monitoring of

voltage and current.

ERR MTR1

• The motor error indicates that the motor

has been drawing too much current for too

long. To remedy this, reduce the wire feed

speed or the wire feeder torque load/duty

cycle.

ERR OPT1

• The optional 1 error indicates no coolant

flow in water flow switch option. The error

may be reset by reestablishing coolant flow

to the gun, and then pressing any button on

front panel.

ERR OPT2

• The optional 2 error indicates a problem

with optional device connected to RC24 on

Interface Board (PC20). The error may be

reset by correcting the problem, and then

pressing any button on front panel.

Wrapper

Motor Control Board PC1

LED3

DIP Switch S1

There is a two-position DIP

switch S1 located on motor

control board PC1. These

switches are factory-set in the

off position and must remain in

that position for the unit to op-

erate correctly.

ERR

OPT1

OPT2

Optional error

condition.

Ref. 805 084-B