Amada HF-2500A, Operation Manual, Page: 95 / 164

CHAPTER 6: MAINTENANCE
HF-2500A HIGH FREQUENCY WELD CONTROL
990-371 6-7
Alarm Message Description Corrective Action
VOLTAGE 2
GREATER THAN
UPPER LIMIT
Actual weld voltage is greater than the
user set Upper Limit value for Weld2.
Weld splash can cause the actual weld voltage to
exceed the user set Upper Limit for Weld2. Add
upslope to reduce weld splash.
Reset the Upper Limit for Weld2 to a larger value.
VOLTAGE 1
LOWER THAN
LOWER LIMIT
Actual weld voltage current is less than
the user set Lower Limit value for Weld1.
Reduce the weld cable length or increase the
diameter of the weld cables.
Reset the Lower Limit for Weld1 to a smaller
value.
VOLTAGE 2
LOWER THAN
LOWER LIMIT
Actual weld voltage current is less than
the user set Lower Limit value for Weld2.
Reduce the weld cable length or increase the
diameter of the weld cables.
Reset the Lower Limit for Weld2 to a smaller
value.
VOLTAGE
SELECTION PLUG
IS MISSING The Voltage Selection Plug on the Weld
Transformer is missing or improperly
connected.
Verify the Voltage Selection Plug connection on
the Weld Transformer.
WELD STOP -
LIMIT REACHED
The user set Upper Limit value has been
exceeded and automatically terminated
the weld energy.
This is a MONITOR LIMITS feature activated by
the selecting the ENERGY key, then
programming the Upper Limit values for Weld1
and Weld2.
If the terminated weld energy is not adequate for
the weld, re-set the Upper Limit values for Weld1
and Weld2.
WELD SWITCH IN
NO WELD
POSITION
User has tried to activate the HF-2500A
with the Weld/No Weld Switch in the No
Weld Position.
No weld current will flow.
Set the Weld/No Weld switch to the Weld
position.
WELD TIME TOO
SMALL
The user has attempted to program zero
for all upslope, weld, and downslope time
periods.
Re-program the welding parameters to be within
the capability of the HF-2500A.