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KEB COMBIVERT F5

Name: Basis

28.01.03

Section PageDate

Chapter

Functional DescriptionDigital In- and Outputs

6.3.5 Digital Filter (di.3)

The digital filter reduces the susceptibility to interferences on the digital inputs. With

di.3 a response time is adjusted. For the duration of the adjusted time the conditions

of all inputs must remain constant, so that a transfer occurs. The transfer takes place

at the positive edge of the scanning grid (see Fig. 6.3.7).

Parameter Setting range Response time

di.3 0...127 (adjusted value +1) x program run time

Program run time: 1 ms at F5-General; 2 ms at F5-Basic

6.3.6 Inversion of In-

puts (di.4)

With parameter di.4 it can be adjusted, whether a signal is 1- or 0-active (inverted).

The parameter is bit-coded, i.e. according to the table below, the appropriate value for

the input is to be entered. If several inputs shall be inverted, then the sum is to be

formed. (Exception: An inversion of the control release remains without function).

6.3.7 Edge-triggering

(di.5)

As a standard the inverter is controlled with static signals, i.e. an input is set for as

long as a signal is applied. However, practice has shown that a signal may be available

for a limited time only, but the input shall still remain set. In that case the input or

several inputs can be adjusted to edge-triggering. Then a rising edge with a pulse

duration that is longer than the response time of the digital filter is sufficient for switch-

on. Switch-off is effected with the next rising edge.

Control release (ST) can be

set to edge-triggering, but

remains without affect on the

function, since it is a pure

static signal.

6.3.4 Terminal Status

(ru.21)

The terminal status shows the logic level on the input terminals. It is unimportant,

whether the inputs are internally active or not. If a terminal is controlled, then the

appropriate decimal value according to the table below is output. If several terminals

are active, then the sum of the decimal values is output.

Example: ST, F and IB are controlled ➭ indicated value = 1+4+512 = 517

Bit -No. Decimal value Input Terminal

0 1 ST (Prog. input „Control release/Reset“) X2A.16

1 2 RST (Prog. input „Reset“) X2A.17

2 4 F (Prog. input „Forward“) X2A.14

3 8 R (Prog. input „Reverse“) X2A.15

4 16 I1 (Prog. input 1) X2A.10

5 32 I2 (Prog. input 2) X2A.11

6 64 I3 (Prog. input 3) X2A.12

7 128 I4 (Prog. input 4) X2A.13

8 256 IA (Internal input A) none

9 512 IB (Internal input B) none

10 1024 IC (Internal input C) none

11 2048 ID (Internal input D) none