TMU104V
12560-0702-02
Page
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Error search and measures
Er1
or
Er2
appears in the display
Cause
Sensor short-circuit or sensor interruption in the temperature sensor
Remedy
Check temperature sensor to see if electrically okay and correctly connected
Er3
or
Er4
appears in the display
Cause
Internal device fault
Remedy
Switch device off and then back on. If the error continues to appear, send the device to the
factory for inspection
Er8
or
Er9
appears in the error memory (info menu)
Cause
Communication error in RS485
Remedy
Normally no problem,
if number of errors increases (while communicating via RS485) within a short time
-> review parameters of interface and connection cables.
The device cannot be programmed (configured)
Cause
Code lock
Remedy
The code block provides protection against unauthorized manipulation on the device. When
the code block is active, the parameters cannot be changed. The pin can be set by the user.
Pin code unknown? -> perform a code reset::
•
While switching on the control voltage, keep the "Set" key pressed for 2 s
The display changes
888
-
Cod
-
off
-
888
.
•
Release the Set key
•
Code block is switched off, Pin code is back to default setting 504
Displayed temperature does not match the sensor temperature
Cause
•
temperature sensor is incorrectly connected
•
False sensor settings
Remedy
•
Check the Pt 100 sensor connection (see connection diagram)
•
Check the sensor settings (3-wire or 2-wire with specification of the line resistance
–> Resistance of outgoing and return line)
