NORD Drivesystems BU0505 - Manual (Page 99)

5 Parameters
BU 0505 GB-1013 99
Value Function Description
07 Maximum frequency The maximum frequency of the FI is varied. 100% corresponds to the setting in
parameter P411. 0% corresponds to the setting in parameter P410. The values for the
minimum/maximum output frequencies (P104/P105) cannot be undershot/exceeded
08 Actual PID frequency
limited* Like Function 3, Actual frequency PID, however the output frequency cannot fall below
the programmed minimum frequency value in Parameter P104. (no change to rotation
direction)
09 Actual frequency PID
monitored* Like Function 3, Actual frequency PID, however the FI switches the output frequency
off when the minimum frequency P104 is reached.
10 Servo mode
torque In servo mode ((P300) = "1") the motor torque can be set or limited using this function.
Here the speed controller is switched off and a torque control is activated. The analog
input is then the source of the setpoint value. Above firmware version SW 2.0, this
function can be also be used with reduced control precision without servo mode or for
((P300) = "0").
11 Torque precontrol A function which enables a value for the anticipated torque requirement to be entered
in the controller (interference factor switching). This function can be used to improve
the load take-up of lifting equipment with separate load detection.
12 Reserved
13 Multiplication The setpoint is multiplied by the stated analog value. The analog value adjusted to
100% then corresponds to a multiplication factor of 1.
14 Actual value process
controller * Activates the process controller, analog input 1 is connected to the actual value sensor
(compensator, air can, flow volume meter, etc.). The mode (0-10 V or 0/4-20 mA) is set
in P401.
15 Process controller
setpoint * as function 14, however the setpoint is specified (e.g. by a potentiometer). The actual
value must be specified using another input.
16 Process controller
precontrol *: adds an adjustable additional setpoint after the process controller.
46 Setpoint Torque Process
controller Process controller torque setpoint
48 Motor temperature Motor temperature measurement with KTY-84, details in Section 0
53 d-correction F process "Diameter correction for PID process controller frequency"
54 d-correction Torque "Diameter correction of torque"
55 d-correction F + Torque "Diameter correction for PID process controller frequency and torque"
*) further details regarding the process controller can be found in Section 0and P400
**) The limits of these values are set by the parameters >Minimum frequency auxiliary setpoints< P410 and >Maximum frequency auxiliary
setpoints< P411.
Further analog functions (47/49/56/57/58) are only relevant for POSICON.
NOTE: An overview of the scaling of the various setpoints can be found in Section 8.8.
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