7 Simple Error Diagnosis
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7 Simple Error Diagnosis
7.1 Error display
Disconnected input sensors Out of temperature range
PWR (red) ON
CH□ (red)
※
1
Flash (for 0.5 sec. in turn)
Comm. output
(decimal)
Outputs '31000'
Outputs '30000(high-limit)',
'-30000(low-limit)'
DAQMaster Displays 'OPEN'
Displays 'HHHH(high-limit)',
'LLLL(low-limit)'
※1. The applied CH LED indicator flashes.
7.2 Trobleshootings
(1) LED indicators flash (for 0.5 sec. in turn), or external device displays
OPEN
Check input sensor setting.
Disconnect the power and check the input connection.
If input is connected, disconnect the input wiring from the temperature controller and
short the + and - terminals. Power the temperature controller and check if the external
device displays the room temperature. If it does not display the room temperature and
continues to display HHHH or LLLL, the controller is broken. Please contact our
technical support. (input type is thermocouple)
(2) Output does not operate normally.
Check that CH indicators for control output operates normally.
If CH indicators for control output does not operates, check the parameter settings.
If CH indicators for control output operates, remove the control output connector and
check the output.
(3) External device receives no-response or abnormal data.
Check the communication converter (SCM-38I, SCM-US48I or SCM-US, sold
separately).
Do not install communication converter line and AC power supply lines.
Use different communication converter power and temperature controller power.
Indicates damage to internal chip by strong noise.
Please contact our technical support. Locate the source of the noise device
countermeasures.
(4) Communication does not work between TM and external device
Check the communication converter power and connections.
Check the communication settings.
Check the temperature controller and external device connections.
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