Weco Pioneer Pulse 321MKS, Instruction Manual, Page: 22 / 48

Cod . 006.0001.1600
11/07/2022 V.2.12
Pioneer 321 MKS
22
ENGLISH
4 ALARM MANAGEMENT
This LED illuminates if an incorrect operating condition occurs.
An alarm message appears on the following display: D3
- Alarm messages
MESSAGE MEANING EVENT CHECKS
AL. HEA.
Overheating alarm
Indicates tripping of the weld -
ing power source thermal pro -
tection.
Leave the equipment running
so that the overheated compo -
nents cool as rapidly as possi -
ble.
When the problem is solved,
the power source will be auto -
matically reset.
All functions are disabled.
Exceptions:
- cooling fan.
- cooler (if switched on).
- Make sure that the power
required by the welding pro -
cess is lower than the maxi -
mum rated power output.
- Check that the operating
conditions are in compli -
ance with the welding power
source data plate specifica -
tions.
- Check for the presence of
adequate air circulation
around the welding power
source.
AL. COO.
Cooler alarm
Indicates insufficient pressure
in the torch cooling circuit.
All functions are disabled.
Exceptions:
- cooling fan.
The alarm message persists on the
display until the first operation is per -
formed on the user interface.
Cooler ON : the alarm is signalled as
long as the unit alarm is active and
the cooler presence signal persists.
Cooler OFF : the alarm is never sig -
nalled, irrespective of the circum -
stances.
Cooler AUTO : the alarm is signalled
at the times in which the unit is run -
ning; the alarm signal occurs as long
as the unit presence signal persists.
- Check that the connection
to the cooling unit is correct.
- Check that the O/I switch is
set to I and that it illuminates
when the pump is running.
- Check that the cooling unit
is filled with coolant.
- Check that the cooling cir -
cuit is intact, notably the
torch hoses and the internal
connections of the cooling
unit.
Err. C0
Err. C1
Err. C2
Err. C4
Err. C11
Err. C12
CAN BUS Communication
Alarm
Indicates the presence of prob -
lems in data communication
between the power source and
wire feeder.
When the unit has cooled, the
welding power source will re -
set automatically.
Exit the alarm state by per -
forming one of the following
actions:
- Switch the power source off.
All functions are disabled.
Exceptions:
- cooling fan.
- cooler (if switched on).
- Check that the connect -
ing cable between power
source and wire feeder is
intact and make sure the
connectors are securely
tightened.