Lenze DDS Function library Drive Bedienungsanleitung PDF herunterladen (Seite 54)

2.4.6 Integration (L_PHINT)

Function library LenzeDrive.lib

Processing of phase−angle signals

2−44

LenzeDrive.lib EN 1.7

 If the count falls below the value of −32000 encoder revolutions, then

bFail_b switches= TRUE.

 If the count falls below the value of −32768 encoder revolutions (corresponds to −2147483648

inc.) there is an overflow, and the count procedure continues from a value of +32767 encoder

turns.

 bReset_b = TRUE:

– the integrator switches to 0.

– sets dnOut_p to 0, as long as nIn_v has a positive signal applied.

– switches bFail_b = FALSE .

2.4.6.2 Calculation of the output signal

The output value at dnOut_p can be derived from the formula:

dnOut_p[inc] + nIn_v[rpm] @ t[s] @ 65536[incńUmdr.]

(t = integration time, 16384  15000 rpm, 1 inc. = 1)

Example:

You want to determine the count of the integrator with a certain speed at the input and a certain

integration time t.

 Given values:

– nIn_v = 1000 rpm  (INT)1092

– t = 10 s

– Start value of the integrator is 0.

 Solution:

– Conversion of the input signal nIn_v:

1000rpm +

1000rev.

60s

– Calculation of the output signal

dnOut_p +

1000rev.

60s

 @ 10s @

65536inc

rev.

 + 10922666inc

1 2 ... 49 50 51 52 53 54 55 56 57 58 59 ... 102 103

Keine Kommentare

Lenze DDS Function library Drive Bedienungsanleitung Seite 54