To ensure optimal safety, any unintentional reversal of the phase sequence can be prevented with
this parameter.
0 = No limitation regarding the phase sequence
1 = Disable phaseseq.key, the phase sequence button on the ControlBox (SK TU2-CTR) is de-
energized. This parameter does not allow however for de-energizing the phase sequence
button on the ParameterBox .
2 = To the right only*, the option of phase sequence commutation is denied. Only the positive
phase sequence is available. If the "wrong" phase sequence is inadvertently selected, the in-
verter will still be enabled for the "correct" phase sequence at the minimum frequency set
(P104).
Note: If a PotentiometerBox (SK TU2-POT) is used, function 5 will take effect if the correct
phase sequence has not been selected!
3 = To the left only*, the option of phase sequence commutation is denied. Only the negative
phase sequence is available. If the "wrong" phase sequence is inadvertently selected, the in-
verter will still be enabled for the "correct" phase sequence at the minimum frequency set
(P104).
Note: If a PotentiometerBox (SK TU2-POT) is used, function 6 will take effect if the correct
phase sequence has not been selected!
4 = Enabl. Direct. only, only the phase sequence that corresponds with the enable signal will be
available. If it doesn't, the FI will supply 0Hz. For the "enable right" option to work, the system
will accept positive speeds only, while speeds need to be negative for the "enable left" option
to be implemented.
Note: If a PotentiometerBox (SK TU2-POT) is used, function 7 will take effect if the correct
phase sequence has not been selected!
5 = Right Orient. Contr. *, only the option of the magnetic field rotating clockwise is available. If
the "wrong" direction of rotation is selected, the FI will be disconnected.
6 = Left Orient. Contr. *, only the option of the magnetic field rotating anti-clockwise is available.
If the "wrong" direction of rotation is selected, the FI will be disconnected.
7 = Enab. Direct. Contr., the phase sequence selected must be in accordance with the enable
signal; otherwise the FI will be disconnected.
*) Applicable to keyboard (SK TU2-) and control terminal control, in addition the phase sequence
button of the ControlBox is de-energized.
Setting this function enables the operator to control the relays and the digital inputs whatever the
status of the inverter may be at the time. In addition the output which is going to be used must be
assigned the External control function.
This relay function is binary-coded: setting range [ 000000-111111 (binary notation)]
Bit 0 = relay 1
Bit 1 = relay 2
Bit 2 = analogue output 1 (digital function)
Bit 3 = analogue output 2 (digital function)
Bit 4 = relay 3
Bit 5 = relay 4
The external relay control function will be available for manual activation or through bus control
when the present parameter has been accordingly set (performance test).
Bus: The relays or digital outputs respectively are set writing the desired value into the parameter.
ControlBox: Any combination of outputs is available among the options provided in the ControlBox.
If only the bits 0 to 3 are to be activated, the selection is displayed in binary notation. When the
PosiCon optional module has been installed (bits 4 + 5), the display will be in hexadecimal code.
ParameterBox: Each output can be accessed and activated individually
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