NORD Drivesystems BU0700 - Manual (Page 89)

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BU 0700 GB-1411 Subject to technical alterations 89
Parameter Setting value / Description / Note Available with option
P505 (P) Abs. minimum frequency always visible
0.0 ... 10.0 Hz
[ 2.0 ]
Gives the frequency value that cannot be undershot by the inverter.
At the absolute minimum frequency, braking control (P434 or P441) and the setpoint delay (P107) are
actuated. If a setting value of "Zero" is selected, the brake relay does not switch during reversing.
When controlling lift equipment, this value should be set at a minimum of 2.0Hz. From approx. 2Hz the
current control of the FI operates and a connected motor can supply sufficient torque.
P506 Automatic acknowledgement always visible
0 ... 7
[ 0 ]
In addition to the manual error acknowledgement, an automatic one can also be selected.
0 = Off
1 ... 5 = Number of permissible automatic malfunction acknowledgments within one mains-on cycle.
After mains off and switch on again, the full amount is again available.
6 = Always, an error message will always be automatically acknowledged when the cause is no
longer present.
7 = ENTER key, acknowledgement is only possible using the ENTER key or by mains switch-off. No
acknowledgement is implemented by removing the enable!
P507 PPO type always visible
1 ... 4
[ 1 ]
Only with the Profibus option
See also the additional description for the Profibus control - BU 0020 -
P508 Profibus address always visible
1 ... 126
[ 1 ]
Profibus address, only with the Profibus option
See also the additional description for the Profibus control