RKC INSTRUMENT THV-1 - Error and Alarm Displays; Error Display Interpretation; Alarm and System Error Code Reference

IMR01M01-E16
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8. ERROR OR ALARM DISPLAYS
When the error or alarm occurs, the display changes to the Error display. When two or more errors occur simultaneously, the
error code numbers are totaled and displayed as one number.
When the power frequency error is displayed, the display can be changed only to the power supply frequency monitor.
When any of the errors show below occurs, other displays will not be displayed.
• Board error • EEPROM error
• Data error 1 • Calibration data error
• Data error 2
Error display
Error number Description Action Solution
1 (1)
Board error Thyristor output OFF Turn off the power at once. If an error occurs after the
power is turned on again, please contact RKC sales office
or the agent.
2 (2)
Data error 1
4 (4)
Data error 2
8 (8)
EEPROM error
16 (16)
Power frequency
error 1 *
Thyristor output OFF
The output can be
turned ON when the
error is canceled.
Check the stability of power supply frequency, and turn
off the power at once. If an error occurs after the power is
turned on again, please contact RKC sales office or the
agent.
32 (32)
Power frequency
error 2
*
Thyristor output OFF
Check the value of power supply frequency, and turn off
the power at once. If an error occurs after the power is
turned on again, please contact RKC sales office or the
agent.
64 (64)
Calibration data
error
Thyristor output OFF Turn off the power at once. If an error occurs after the
power is turned on again, please contact RKC sales office
or the agent.
* For details of the error, refer to 7.8 Automatic Power Frequency Detection and Power Frequency Monitoring
Function (P. 19).
Alarm display
Error number Description Action Solution
128 (128)
Heater break
alarm 1
Control is continued. Turn off the power, and check or replace the heater, etc.
256 (256)
Thyristor
break-down
If a load generating large rush current is used, thyristor
break-down may occur when no Soft-start time is
appropriately set.
In such a case, make the Soft-start time longer.
For any causes other than the above, turn the power off
and then contact to your nearest RKC sales agent or our
sales office.
512 (512)
Heater break
alarm 2
(heater deterioration)
Turn off the power, and check or replace the heater, etc.
Error display
Display the error number.
E.1.2.2.