Amada HF-2500A, Operation Manual, Page: 94 / 164

CHAPTER 6: MAINTENANCE
HF-2500A HIGH FREQUENCY WELD CONTROL
6-6 990-371
Alarm Message Description Corrective Action
POWER 1 LOWER
THAN LOWER
LIMIT
Actual weld power is less than the user set
Lower Limit value for Weld1.
Weld splash can cause the actual weld power to
drop below the user set Lower Limit for Weld1.
Add upslope to reduce weld splash. Reset the
Lower Limit for Weld1 to a smaller value.
POWER 2 LOWER
THAN LOWER
LIMIT
Actual weld power is less than the user set
Lower Limit value for Weld2.
Weld splash can cause the actual weld power to
drop below the user set Lower Limit for Weld2.
Add upslope to reduce weld splash.
Reset the Lower Limit for Weld2 to a smaller
value.
POWER
TRANSISTOR
OVERHEATED The power dissipated by the power
transistors has exceeded the HF-2500A
specified capability.
Reduce duty cycle.
Reduce weld time.
PROCESS STOP ON
CONTROL
SIGNALS INPUT
The Process Stop signal on the
CONTROL SIGNALS connector has
been activated, immediately terminating
weld current.
Remove the Process Stop activating signal from
the CONTROL SIGNALS connector.
SAFE ENERGY
LIMIT REACHED
The HF-2500A internal power dissipation
has exceeded the HF-2500A specified
capability.
Reduce duty cycle.
Reduce weld time.
SCHEDULES ARE
RESET
User programmed the HF-2500A to
automatically reset all 100 weld
schedules to their factory set default
values.
CAUTION: Be careful when using the MENU
default features. There is no way to restore a
default action.
SYSTEM
PARAMETERS ARE
RESET
User programmed the HF-2500A to
automatically reset all I/O and other
system parameters to their factory set
default values.
CAUTION: Be careful when using the MENU
default features. There is no way to restore a
default action.
SYSTEM &
SCHEDULE RESET
TO DEFAULTS
User programmed the HF-2500A to
automatically reset all 100 weld
schedules, I/O and other system
parameters to their factory set default
values.
CAUTION: Be careful when using the MENU
default features. There is no way to restore a
default action.
UPSLOPE
REQUIRED FOR
LOWER LIMIT
User has programmed a Lower Limit
value for Weld1 or Weld2 periods
without using an upslope period. The
HF-2500A will automatically stop when
activated because the starting weld
energy will always be lower than the
Lower Limit.
Delete the Weld1 or Weld2 Lower Limit value.
Add an upslope period before Weld1 or Weld2 if
a Lower Limit value is desired.
VOLTAGE 1
GREATER THAN
UPPER LIMIT
Actual weld voltage is greater than the
user set Upper Limit value for Weld1.
Weld splash can cause the actual weld voltage to
exceed the user set Upper Limit for Weld1. Add
upslope to reduce weld splash.
Reset the Upper Limit for Weld1 to a larger value.