Stel MAX 403 Manual De Instrucciones página 13

FAULTY
- PF0
1) Under normal conditions the MAX 403S displays
PF0 at start up on the 'A' LED. The PFC system is
now recognizing the input voltage. This process
takes approximately 3/4 sec. from start up.
2) In the event PF0 remains permantly on or is
flashing PF0, this is a result of the PFC system
being blocked..
Return for repair or have a qualified service
technician repair as per service manual.
- COn
1) The 'A' LED displays COn:
The communication between the power source and
the accessory being used is interrupted.
- If the 'A' LED continues to display COn return for
repair or have a qualified service technician repair
as per service manual.
- If in the 'A' LED continues to display Con, then
please check all connections to the power source
are securely connected and are not damaged.
Check tha all accessories to the work piece from
the power source, especially including earthing,
are secure and not damaged.
DUTY CYCLE AND
EXCESSIVE TEMPERATURE
The Led indicator light 3 is ON, and the 'A' LED
displays HT(1,3,5,7)
1. This is indicating the unit has exceeded
the Duty Cycle.
The duty cycle is the percentage of use of the
welding machine in 10 minutes which the operator
must respect to avoid the power supply output
blocking due to exceeding working temperature. If
the machine goes into excessive temperature
protection mode:
.
2. It is necessary to wait about 10 minutes before
resuming welding.
3. Check the data plate on the unit or on see
section TECHNICAL DATA in the Operating
Manual..
4. In the event the working condition are
conforming to the specification on the Technical
Data Plate, but still the display shows HT (1,3,5,7)
this is an indication that one of the PC Boards is
possibly faulty. Return for repair or have qualified
service technician repair as per service manual.
6932300020
13