—————— TPD32-EV ——————
286
2. Programming example of the analog input 2 on PID source:
a)
Input programming on a PAD parameter
Menu I/O CONFIG
————> Analog input
————> Analog input 2
————> Select input 2 = PAD 0
b)
Setting of the
PAD 0
as feed-forward input:
Menu OPTION
————> PID
————> PID source
————> PID source = 8695
The
PID source
must be set to the parameter number to which it will be associated, choosing it from paragraph
10.2 “List of high-priority parameters’ (
PAD 0
has the decimal number 503).
To obtain the value must be added the decimal value 8192 (fixed offset):
8192 + 503 = 8695.
The full-scale of the feed-forward is limited to the value +/- 10000, which depends on the parameter set on
PID
source
. It will be necessary the calibration through
PID gain source
.
The measure units are those indicated in the notes at the end of the paragraph 10.2. “List of the high-priority
parameters”.
The feed-forward value can be read through the parameter
Feed-fwd PID
via keypad or serial line.
Referring to the above examples
:
1. Programming example of the ramp output block (
Parameter Ramp out
) on
PID source
:
Speeds will be converted inside the drive into RPM x 4.
The ramp input references take as maximum set value what set in
Speed base value
.
Feed - fwd PID = Speed base value x 4 x PID source gain
If, with max. ramp reference and
Speed base value
= 3000rpm, to have
Feed - fwd PID
= 10000, it is necessary to set:
PID source gain
= 10000 / (3000 x 4) = 0.833
2. Programming for example analog input 2 on
PID source
:
When an analog input will be set on a
PAD
parameter, this will have a max. value of + / - 2047.
With max. analog reference, for having
Feed - fwd PID
= 10000, it is necessary to set:
PID source gain
= 10000 / 2047 = 4.885.
n
ote
!
Using the regulator as “generic PID” without the feed -forward function,
Feed - fwd PID
must be at its max. value.
To do this, it is necessary to set
PID source
on a
PAD
parameter and program it = 10000.
Содержание TPD32-EV-...-2B
Страница 1: ... Instruction manual Industrial Application DC drives TPD32 EV ...
Страница 62: ... TPD32 EV 62 10 mm 0 4 150 mm 6 150 mm 6 150 mm 6 10 mm 0 4 10 mm 0 4 50 mm 2 Figure 3 3 2 Mounting Clearance ...
Страница 372: ... TPD32 EV 372 9 BLOCK DIAGRAM 9 1 CONTROL BLOCK DIAGRAMS ...
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