Instruction Manual
Microprocessor Temperature Regulator HT MC11
Page 21 of 22
10 Error and Status Messages
Display Cause
Possible solution
SP.Lo
Lower setpoint limit has
been reached
Reduce limit (parameter
SP.Lo
)
SP.Hi
Upper setpoint limit has
been reached
Increase limit (parameter
SP.Hi
)
LOC
Parameter is locked
Unlock parameter, if necessary
Parameter:
LOC
on device configuration level
Er.Hi
Top range end has been
exceeded, sensor defect
Check sensor and cable
Er.Lo
Bottom range end has been
exceeded, sensor defect
Check sensor and cable
Check process value offset
Er.OP
Self tuning error
Quit error message by pressing key E .
Check self tuning conditions and restart.
Er.Sy
Err.0
System error
Quit error message by pressing key E .
Check all parameters.
If error message continues, please send the
controller back to the manufacturer
Err.9
Internal Error
Communication error
Send the controller back to the manufacturer.
Er.Cn
Reference junction
temperature error
The sensor for the reference junction measurement
is located on the connection board. Check the cable.
AL. Li
Temperature AL2 has been
exceeded (over-temperature)
AL.Cu
Heating leakage current >
0.3 A
A current is detected while the heating should be
switched off.
OFF
When starting the program
controller: no ramp or dwell
time is set.
Check program parameters. Set times for
I.rA
and/or
I.t i
for the desired steps.
Strt
Program controller started
Only info message
hoL d
Program controller set to
hold
Only info message
rESu
Program controller resumed
Only info message
StoP
Program controller stopped
Only info message
Version 1080/1.03 02/2018
471 11 400
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