Burkert Type 8741 - Manual (Page 34)

34
Devicestatus/Troubleshooting
Type 8741
led acc. to ne 107 description What to do?
Orange / Flashing Mode 1: calibration activated. -
Mode 2:
The control variable for the proportional valve has (almost)
reached 100%. The setpoint cannot be reached. Increase the operating pressure (observe the maximum permissible
supply pressure).
Check the pressure drop in the pipe and reduce it if necessary.
Check the dimensions of the installation.
Check the filters installed in the pipe and clean them if necessary.
Mode 3: Search for a büS participant in progress. Mode is
abandoned after a few seconds. If this mode persists for more than 4 minutes, restart the network.
Mode 4: The device has detected an error on the büS
fieldbus. Restart the device.
Mode 5:
Supply voltage is 10% under or above the nominal value. Check the power supply.
Yellow / Lit Function AUTOTUNE has failed. Restart the AUTOTUNE function.
Blue / Lit Memory error.
Error detected in the calibration curve. Maintenance is needed –
Contact the manufacturer.
Green / Lit Mode 1: Function AUTOTUNE active. -
Mode 2: Function ASYSTEM ANALYSIS active. -
Table 2: Description: LED display of the device status and measures
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