Connections; Automatic Activation Of Input Channels - Pepperl+Fuchs VBA-4E-KE5-IL Manual

VBA-4E-KE5-IL
Product Description
3.3

Connections

Figure 3.2
Abbreviation
ADDR
II1 ... II4
L+
GND
1CH, 2CH, 3CH
ASI+
ASI-
AUX+
AUX-
3.4

Automatic Activation of Input Channels

All input channels are deactivated by default. Wire break detection is activated (parameter bit
P3 = 1). The measuring range is 4 mA ... 20 mA. The analog module checks the input signals
to detect and automatically activate the connected inputs. This state is indicated by the four
yellow LEDs IN1 ... IN4 illuminating in sequence until at least one connected input is detected.
If no connected input is detected, the peripheral fault is set after 5 seconds. Automatic
activation is still possible.
Activating an Input Channel
An input channel is activated if an input signal within a range of 1 mA ... 23 mA is present. Any
activated inputs remain active after the module is restarted. The sequence and number of
activated inputs can be chosen as required. To use the automatic activation, no jumpers may
be installed between GND and 1CH, 2CH, or 3CH.
Note!
If wire break detection is disabled (parameter bit P3 = 0), automatic activation is switched off
and all four input channels are activated. The measuring range is 0 mA ... 20 mA. The number
of active input channels can be set by activating them manually using a jumper between GND
and 1CH, 2CH, or 3CH. See chapter 3.6.
II1 1
L+ 3
II2 5
L+ 7
3CH 9
GND 11
II3 13
L+ 15
II4 17
L+ 19
AUX+ 21
AUX- 23
ASI+ 25
ASI- 27
Connections
Explanation
Addressing socket; extra-low-voltage switch socket, Ø 1.3 mm
Current at analog inputs
Sensor supply
Reference potential for inputs and sensors
Jumpers for input configuration
AS-Interface; both ASI+ terminals and both ASI- terminals are
bridged in the terminal block.
Auxiliary voltage; both AUX+ terminals and both AUX-
terminals are bridged in the terminal block.
ADDR
2 GND
4 GND
6 GND
8 GND
10 2CH
12 1CH
14 GND
16 GND
18 GND
20 GND
22 AUX+
24 AUX-
26 ASI+
28 ASI-
9