sauter Equitherm EQJW 125, Руководство пользователя

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EQJW 125: Heating controller
Faults
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7001029003 A
© Fr. Sauter AG
7 Faults
Before you call a heating specialist, check: electrical fuses, main plant switch,
burner function, circulating pump, valve, fault display, time and day of the
week for the EQJW 125.
7.1 Displaying faults
An operating fault is shown on the display by the flashing fault symbol (see
Section 2). The 'Error' message is shown. Press the input knob to open the
error level. In certain circumstances you can poll several faults by turning the
input knob. As long as an acute operating fault is present, the error message
is kept in the display loop, even if it is not opened by pushing the input knob.
The error is shown in the error level according to the list below.
In the first three minutes after you switch the controller on, evaluation and
display of faults is suppressed to wait until other parts of the plant are
switched on.
7.1.1 Error list
Err 1 Sensor failure TF
Err 2 Sensor failure TA
Err 3 Sensor failure TR
Err 11 Prohibited access via modem
Tab. 7: Error list
7.1.2 Device status
The device status register contains the information about faults that are
present according to the error list, in coded form. The register can be read
with the help of the service parameters, the communication parameters or via
the Modbus. If a fault message is sent via SMS or Modbus, the fault is
notified in the form of the device status.
The coding is as follows:
Err 1 (Sensor failure TF) 1
Err 2 (Sensor failure TA) 2
Err 3 (Sensor failure TR) 4
Err 11 (Prohibited access) 1024
The value shown as the device status is the total of the codings for the
existing errors.