NORD Drivesystems BU0700 - Manual (Page 93)

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BU 0700 GB-1411 Subject to technical alterations 93
Parameter Setting value / Description / Note Available with option
P538 Check input voltage always visible
0 ... 4
[ 3 ]
For safe operation of the FI, the voltage supply must meet a specific quality. If there is a brief
interruption of a phase or the voltage supply sinks below a particular limit value, the FI will output an
error.
Under certain operating conditions, it may be necessary to suppress this error message. In this case,
the input monitoring can be adjusted.
0 = Off: No monitoring of the supply voltage.
1 = Phase failure: only phase errors will produce an error message.
2 = Low voltage: only low voltage will produce an error message.
3 = Phase failure and low voltage: Low voltage and phase error will produce a fault report (Factory
setting).
4 = DC supply: The input voltage is fixed at 480V with direct supply of direct current. Phase error and
low mains voltage monitoring are deactivated.
Note: Operation with unpermitted mains voltages can destroy the frequency inverter!
P539 (P) Check output voltage always visible
0 ... 3
[ 0 ]
This protective function monitors the output current at the U-V-W terminals and checks for plausibility.
In cases of error, the error message E016 is output.
0 = Off: Monitoring is not active.
1 = Motor phases only: The output current is measured and checked for symmetry. If an
imbalance is present, the FI switches off and outputs the error message E016.
2 = Magnetisation only: At the moment the FI is switched on, the level of the excitation current
(field current) is checked. If insufficient excitation current is present, the FI switches off with the
error message E016. A motor brake is not released in this phase.
3 = Motor phase and magnetisation: as 1 and 2 combined
NOTE:
This function can be used as an additional protective function for lifting applications, but is
not permissible on its own as protection for persons.
P540 (P) Mode phase sequence always visible
0 ... 7
[ 0 ]
For safety reasons this parameter can be used to prevent a rotation direction reversal and therefore the
incorrect rotation direction.
0 = No limitation
1 = Disable phase sequence key: The rotation direction key on the ControlBox SK TU1-CTR is
blocked.
2 = To the right only *: Clockwise direction only is possible. The selection of the "incorrect"
rotation direction leads to the output of 0Hz.
3 = To the left only *: Counter-clockwise direction only is possible. The selection of the "incorrect"
rotation direction leads to the output of 0Hz.
4 = Enable direction only: Rotation direction is only possible according to the enable signal,
otherwise 0Hz is output.
5 = Right orientation control *: Clockwise direction only is possible. The selection of the
"incorrect" rotation direction leads to the FI switching off.
6 = Left orientation control *: Counter-clockwise direction only is possible. The selection of the
"incorrect" rotation direction leads to the FI switching off.
7 = Enable direction control: Rotation direction is only possible according to the enable signal,
otherwise the FI is switched off.
*) Applies to keyboard (SK TU1-) and control terminal actuation, in addition, the direction key on the
ControlBox is blocked.