
Page | - 38 -
© Copyright Mastip Technology Limited. Information subject to alteration. V1.01 www.mastip.com
Temperature Controller METICOM CTI Series
6.7.3 Alarm Status
Alarm
Alarm Description
Remark and Solution
T/C Broken
Thermocouple is broken or damaged.
Controller will shut off the output.
Check the sensor or switch to manual mode.
T/C Reversed
Thermocouple is reversed.
Controller will shut off the output.
Check the sensor or switch to manual mode.
T/C Error
Thermocouple is connected to
controller’s output terminals.
Related to parameter “Sensor Protection”.
Controller will shut off the output.
Check the wiring.
It may cause a false alarm if the heater’s power
is large.
Over Temp
PV temp is over high alarm value.
Alarm value = Se Alarm High.
Controller will shut off the output.
Check the controller & the sensor.
Under Temp
PV temp is under low alarm value.
Alarm value = Se Alarm Low.
Check the system thermal insulation.
Or switch to manual mode.
Load Broken
No heater is detected.
Related to parameter “Load Check”.
Controller will shut off the output.
Check the heater.
Load Shorted
Heater is shorted.
Related to parameter “Load-short Sensitivity”.
Controller will shut off the output.
Check the heater.
Triac
Triac is damaged or out of control.
Controller will shut off the output.
Check the triac.
Overload
Load current is too high.
Related to parameter “Rated Current”.
Check the heater and the Rated current setting.
Fuse blown
Fuse is blown.
Check the heater and replace the fuse.