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78
Chapter 13
Trouble Shooting
Rev. 1.00.05
Subject to technical changes
13.1 Sensor break TCb
13.2 Sensor incorrect polarity TCp
TCb
A sensor break is a disconnection in the sensor circuit
where the sensor wire is squeezed somewhere in between
sensor and controller.
How it works
After detection of an error, an error message is immediately
output and the heating of the corresponding zone is
switched off.
What good is it
The alarm sensor break provides the user with a specific in-
dication of the error in the hot runner or the wiring, and pro-
vides the ability to pinpoint errors quickly and correct it.
Remedy
Reason
Trouble Shooting
Sensor break
Check the connected sensors
Check connecting cable of hot runner controller
Check sensor input
TCp
Sensor incorrect polarity means, that the thermocouple is
connected with the wrong polarity to the controller.
How it works
Due to the incorrect wiring, the controller measures a faulty
actual value. For not yet heated tool, the fault is not visible.
Only when the zone is heated up, the error is immediately
detected and an error message displayed.
What good is it
The alarm sensor incorrect polarity provides the user with a
specific indication of the error in the hot runner or the wiring,
and provides the ability to pinpoint errors quickly and correct
it.
Remedy
Reason
Trouble Shooting
Sensor incorrect polari-
ty
Check the connected sensors
Check sensor conn/-