HYDAC EDS 1700 - Manual (Page 33)

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10. Error messages
If an error is detected, then a corresponding error message appears which
must be acknowledged by pressing any key. Possible error messages are
as follows:
ER.01 The switching points and hystereses/switch-back points are not within
the permissible setting range.
Example:
A switching point is set to 180 bar, the hysteresis to 200 bar.
The setting is not correct since the resulting switch-back point is
smaller than the switching point: the error message is displayed.
Action: Correct the settings.
ER.10 A data error has been detected in the saved settings. Possible causes
are strong electromagnetic interference or a component fault.
Action: Check all the settings (programming enable, switching points, switch-
back points and basic settings) and correct these if necessary. If the
error occurs frequently, please contact Hydac Service.
ER.12 An error has been detected in the stored calibration data.
Possible causes are strong electromagnetic interference or a
component fault.
Action: After acknowledging the error, the unit will continue to operate, with
reduced accuracy, until it is switched off. However, check all important
settings (switching points, switch-back points and basic settings) and
correct these if necessary. The unit must in any case be returned to
the manufacturer for re-calibration or repair.