Nord Drivesystems BU 0500, Руководство пользователя

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5 Parameters
BU 0500 EN-1516 129
P461
Function 2 Encoder
(Encoder function 2)
S
0 ... 5
{ 0 }
from
hardware status CAA
The actual speed list value supplied to the FI by an HTL incremental encoder can be used for
various functions in the FI. (The settings are identical to (P325)). The HTL encoder is connected
via digital inputs 2 and 4. The parameters
(P421) and (P423) must be set accordingly to functions
43 "Track A" and 44 "Track B". Due to the frequency limit (max. 10 kHz) only restricted encoder
solutions
(P462) are possible with these digital inputs. The mounting location (motor shaft or
output side) of the encoders is taken into account by the parameterisation of an appropriate speed
ratio
(P463) .
0 = Speed measurement Servo mode: The actual motor speed list value is used for the servo
mode. The ISD control cannot be switched off in this function.
1 = PID actual frequency value: The actual speed of a system is used for speed control. This
function can also be used for controlling a motor with a linear characteristic curve. Here P413 and
P414 determine the P and I proportion of the control.
2 = Frequency addition: The determined speed is added to the actual setpoint value.
3 = Frequency subtraction: The determined speed is subtracted from the actual setpoint.
4 = Maximum frequency: The maximum possible output frequency / speed is limited by the
speed of the encoder.
5 = Reserved:
see BU510
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P462
Pulse number 2 Rotary encoder
(Puls
e number of function 2)
S
16 ... 8192
{ 1024 }
Input of the pulse-count per rotation (16 - 8192) of the connected HTL incremental encoder.
If the direction of rotation of the encoder is not the same as that of the motor controller,
(depending on installation and wiring), it can be compensated for by selecting the corresponding
negative pulse numbers.
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P463
2. Encoder ratio
(2nd encoder speed ratio)
S
0.01 ... 100.0
{ 1.00 }
If the HTL incremental encoder is not mounted directly on the motor shaft, the correct speed ratio
for the motor speed and the encoder speed must be set.
speed Encoder
speed Motor
P463
=
Only if P461 = 1, 2, 3 4 or 5, therefore not in Servo mode (motor speed control)
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P464 Fixed frequencies mode
(Fixed frequencies mode)
S
0 ... 1
{ 0 }
This parameter determines the form in which fixed frequencies are to be processed.
0 = Addition to main setpoint: Fixed frequencies and the fixed frequency array are added to
each other. I.e. they are added together, or added to an analog setpoint to which limits are
assigned according to P104 and P105.
1 = Main setpoint: Fixed frequencies are not added - neither together, nor to analog setpoints.
If for example, a fixed frequency is switched to an existing analog setpoint, the analog
setpoint will no longer be considered.
Programmed frequency addition or subtraction with an analog input value or a bus setpoint
is still possible and valid, as is the addition to the setpoint of a motor potentiometer function
(function of digital inputs: 71/72)
If several fixed frequencies are selected simultaneously, the frequency with the highest value
has priority (E.g.: 20>10 or 20>-30).
Note:
The highest active fixed frequency is added to the setpoint value of the motor potentiometer
if the functions 71 or 72 are selected for 2 digital inputs.
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