Protection Systems - DAB PUMPS PWM 203 Instrucciones De Instalación Y Mantenimiento

When a password is used (PW value other than 0) all modifications are blocked and "XXXX" is displayed on the PW page.
If a password is set, user navigation is admitted in all pages, but on any attempt to make modifications to a parameter, a pop-up
window is displayed, requesting entry of the password. The pop-up window enables the user to exit the window or enter the
password for access.
When the correct password is entered, the parameters remain unlocked and modifiable for 10'.
To cancel the password timer, enter the PW page and press + and - at the same time for 2 seconds.
On entry of the correct password, an opened padlock symbol appears, while on entry of the incorrect password will display a flashing
padlock symbol.
If the incorrect password is entered 10 times consecutively, the same padlock error symbol appears with inverted colours, to indicate
that no password will now be accepted until the unit is switched off and on again. After the factory settings are restored, the
password is reset to "0".
Any change to the password is applied when Mode or Set is pressed, and any subsequent change to a parameter requires entry of
the new password (e.g. the installer makes all settings with the default PW value = 0, and the last thing he/she does is to set the PW
so that the machine is totally safe without any further actions).
If a password is lost, there are two options to modify the inverter parameters:
Note down the value of all parameters, reset the inverter to factory settings; see paragraph 7.3.
•
deletes all inverter parameters, including the password.
Note down the number on the password page, send an email with this number to the local service centre, and a new
•
password will be sent within a few days to unlock the inverter.
6.6.16.1 Multiple inverter system password
The parameter PW is one of the sensitive parameters, and therefore must be identical for all inverters to ensure inverter operation. If
there is already a chain with aligned PW, and inverter is added with PW=0, a request is displayed to align the parameters. In these
conditions, the inverter with PW=0 can implement the configuration including the Password, but cannot propagate this configuration.
In the case of unaligned sensitive parameters, the key parameter with relative value is displayed in the parameter alignment page to
aid the user in checking whether a configuration can be propagated.
The key represents a password code. Depending on the key correspondence, the user can check whether the inverters in a chain
can be aligned.
Key equal to - -
the inverter can receive the configuration from all
•
the inverter can propagate its configuration to inverters with key equal to - -
•
the inverter cannot propagate its configuration to inverters with keys other than - -
•
Key greater than or equal to 0
the inverter can only receive the configuration from inverters with the same key.
•
the inverter cannot propagate its configuration to inverters with the same key or with keys = --
•
the inverter cannot propagate its configuration to inverters with different keys.
•
When the PW is entered to unlock an inverter in a group, all inverters are unlocked.
When the PW is modified on one inverter in a group, the modification is applied to all inverters.
When password protection is applied to one inverter in a group (+ and – in the PW page when PW≠0), protection is applied to all
inverters (the password is required to apply any modifications).

7. PROTECTION SYSTEMS

The inverter is equipped with protection systems designed to preserve the pump, motor, power line and the inverter itself. When one
or more protections trip, the one with the highest priority is shown on display. Depending on the type of error, the electric pump may
shut down, but when normal conditions are restored, the error state may clear automatically, immediately or after a set time interval
following automatic reset.
In the case of a block due to water supply failure (BL), block due to pump motor current overload (OC), block due to final output
stage current overload (OF), block due to direct short circuit between the phases on the output terminal (SC), the user can attempt to
manually reset the error condition by pressing and releasing buttons + and - simultaneously. If the error condition persists, the cause
of the fault must be located and eliminated.
ENGLISH
112
The reset operation