Nord Drivesystems SK 530P - Page 109

5 Parameter
BU 0600 en-2319 109
06
Current limit
Based on the set current limit P536, this can be changed via the
analogue input.
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 P411. The values for the min./max. output frequency
P104 /P105 cannot be exceeded/undershot.
08 Actual PID frequency limited
1)
As for Function 3, Actual frequency PID, however the output
frequency cannot fall below the programmed "minimum frequency"
value in Parameter P104 (no reversal of direction of rotation).
09
Actual frequency PID monitored
1)
As for 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 the "CFC closed-loop" control method (P300 = 1) the motor
torque can be set or limited with this function. Here the speed
regulation is switched off and a torque control is activated. The
analogue input is then the source of the setpoint.
In the open-loop method (P300 ≠ 1) this function can be used with
reduced quality of control.
11
Torque precontrol
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 analogue value supplied. The
analogue value adjusted to 100 % then corresponds to a
multiplication factor of 1.
14
Actual value process controller
1)
Activates the process controller. Activates the process controller,
analogue 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
1)
As for Function 14, however the setpoint is specified (e.g. by a
potentiometer). The actual value must be specified using another
input.
16 Process controller lead
1)
Adds an adjustable additional setpoint after the process controller
17 ... 19 Reserved
20
Set analogue output
Value from P542
21 ... 45 Reserved
46
Setpoint Torque Position
control
Process controller torque setpoint
47 Gear ratio factor Sets the speed ratio between master and slave
48 Motor temperature
Motor temperature measurement with temperature sensor (e.g.
KTY-84), see Section 4.4for details.
49 Ramp time Acceleration and deceleration
53
d-correction, F process
"Diameter correction, PID process controller frequency"
54 d-correction torque "Diameter correction, torque"
55 d-correction, F+torque "Diameter correction, PID process controller frequency and torque"
56 Acceleration time
Adaptation of the time for the acceleration process. 0%
corresponds to the shortest possible time, 100% corresponds to
P102
57 Deceleration time
Adaptation of the time for the deceleration process. 0%
corresponds to the shortest possible time, 100% corresponds to
P103
58 Reserved for POSICON
1)
Process controller details: P400 and  Section 8.2.
2)
The limits of these values are set by the parameter P410 "Minimum frequency auxiliary setpoints" and
parameter P411 "Maximum frequency auxiliary setpoints".
NOTE: Overview for scaling in  Section 8.7.