Amada UNIFLOW 4 REMOTE, Operation Manual, Page: 101 / 176

CHAPTER 5: MAINTENANCE
UNIFLOW
®
4 PULSED HEAT CONTROL
990-908 5-5
Alarm Message Description Corrective Action
MAX TEMP ALARM.
Check System, Cycle Power
Maximum Temperature detected by
the Auxiliary thermocouple is above
the user-set Max Temperature Limit,
or the Main thermocouple is 100
degrees C above the Programmed
Process Set Point.*
Notes: If the thermocouple wire is
opened, then this message will be
displayed and the temperature shown
on the GRAPH and DATA screens
will increase to 999C even though
there is not any power going to the
thermode.
a) Cycle the Main Power, then
reduce the Heating Rate.
b) Check to see that the
Thermocouples are connected
properly.
c) Check to see if the SCR has
shorted. When finished, recycle
the Power on the Control.
OVER POWER ALARM
–
Check TC (thermocouple),
Cycle Power
An increase in power did not result in
an increase in temperature. This
message is displayed for Over Power
Condition when fine heat rate is
greater than or equal to 45.*
Note: The OVER POWER ALARM
can be caused if the TC polarity is
reversed. See
Appendix B , Main
Thermocouple Input Connector (J9)
for the correct connection.
Make sure that the Thermocouple is
plugged in, is undamaged, and is still
bonded to the Thermode. Also check
Thermocouple polarity.
Then recycle the Power on the
Control.
OVER_PWR ALARM-Chk
TC, Fine Heat: Cyc Pwr
An increase in power did not result in
an increase in temperature. This
message is displayed for Over Power
Condition when fine heat rate is less
than 45.*
Note: The OVER POWER ALARM
can be caused if the TC polarity is
reversed. See
Appendix B , Main
Thermocouple Input Connector (J9)
for the correct connection.
Make sure that the Thermocouple is
plugged in, is undamaged, and is still
bonded to the Thermode. Also check
Thermocouple polarity.
Then recycle the Power on the
Control.
POSTHEAT TIME
SHORTER THAN HEAD UP
DELAY
New Postheat time is less than the
Head Up Delay
Re-enter a Postheat time value that is
greater than Head Up Delay