13.3 Errors and corrective actions

Errors always require a user intervention and need to be acknowledged.
This is done in the device overview Figure 28 by pressing the buttons “ON/OFF”.

ERR-00 TRIAC

Cause: The channel was switched off and a significant current flowed nevertheless – the triac has failed short.
Measure: Replace the triac, see Section 15.2, “TRIAC”.

ERR-01 Short circuit

Cause: With the channel switched on, the peak value of the current of a single half-wave exceeded the permissible value. The channel was switched off immediately – without a response delay, because a short circuit tolerates none.
Measure: Check the cables for a short circuit, check the heater.

ERR-02 Overcurrent

Cause: With the channel switched on, the current was persistently above the overload limit – measured as a mean value over several half-waves, with a response delay.
Measure: Check the heater: does it draw more than the channel is allowed to deliver? The overload limits belong to the device, not to the tool, see Section 6.7, “Current monitoring”.

ERR-03 Current measurement defective

Cause: The device is defective.
Measure: Contact customer service, see Section 2.2, “Contact information”.

ERR-04 Residual current

Cause: With the channel switched on, the tool produces a residual current above the set limit – an insulation fault.
Measure: Check the connection cables, check the insulation between heater and temperature sensor. How the Thermonom reacts, and why the main contactor sometimes drops, is explained in Section 6.10, “Groups, substitution and failures”.

ERR-05 Connection error

Cause: Mains voltage is present at a temperature sensor input.
Measure: Check the connection cables, check the insulation between heater and temperature sensor. Why all six channels of one board report the fault, and how to narrow it down, is described in see FAQ-16, “TC connection error”.

ERR-06 Current limits

Cause: One of the set current limits has been violated and the channel is set to switch off in that case.
Measure: Check the heating circuit as for WRN-00 and WRN-01. Whether a limit violation only warns or switches off is decided by STR-06, “Current error: turn off”.

ERR-07 Heat sink too hot

Cause: The heat sink temperature of the controller board has exceeded the shutdown threshold. All six channels of the board are affected.
Measure: Let the device cool down switched off, ensure free convection before restarting, distribute the load better across the tool connectors. For permissible ambient conditions see Section 16.2, “Permitted ambient conditions”.

ERR-08 Overtemperature

Cause: The channel exceeded the absolute temperature limit for longer than the response delay.
Measure: Check the temperature sensor and the control settings (run the wizard). The limit itself and its effect are explained in Section 6.6, “Temperature monitoring”.

ERR-09 External alarm

Cause: A digital input configured as an alarm input has been triggered.
Measure: Check the installation that provides the signal. The function of an input is described under Section 9.2.8, “Inputs and outputs”.

NOTE

If the main contactor drops out, this is not a channel error: the device reports it as MSG-60, “Main conductor tripped ‹triggering notification›” together with the reason. An error that affects only one channel leaves the main contactor switched on.