KEB COMBIVERT F5-A, Applications Manual, Page: 115 / 552

Digital in- and outputs
© KEB, 2012-10 COMBIVERT F5-A, -E, -H Page 7.3 - 19
7
7.3 Digital in- and outputs
7.3.1 Summary description digital inputs
The KEB COMBIVERT has 8 external digital inputs and 4 internal inputs (IA...ID). All inputs can be assigned
to one or several functions.
Coming from the terminal strip it can be defined with parameter di.00 whether external inputs shall be con
-
trolled in PNP or NPN wiring (not at safety relais). Parameter ru.21 shows the currently controlled input. Each
input can optionally (
di.01) be set via terminal strip or by means of software with di.02. A digital filter (di.03,
di.23) reduces the noise sensitivity of the inputs. The inputs can be inverted with di.04 and with di.05 one
can switch to edge-triggering. A strobe-mode can be activated with parameters di.06...di.08. The input status
(ru.22) shows the inputs that are actually set for processing. The function(s) carried out by a programmed input
is defined by means of the input selection of the corresponding function or
di.11...22.
For safety reasons the control release (ST) must generally be switched by means of hardware. Edge-trigge-
ring, inversion and strobe signal can be adjusted but have no influence.
Fig. 7.3.1 Principle of the digital inputs
1
di.04
Bit X
ru.21
Bit X
di.02
Bit X
di.01
Bit X
D Q
Clk /Q
1
di.03
di.23
di.05
Bit X
>=1
.
.
.
di.06
Bit X
D Q
Latch /Q
D Q
Clk /Q
0
di.07
di.08
Bit X
ru.22
Bit X
sy.41
Bit Y
>=1
sy.42
Bit Y
di.40 -
di.47
a)
b)
a) Filter digital inputs (only hardware inputs)
b) ON/OFF delay