FANOX SIA D, Руководство пользователя, Страница: 49 / 117

www.fanox.com
SIA-D_
Rev. 07
49 / 117
ISO 9001:2008
5.6. Configurable Inputs
The SIA-D has four digital inputs that can be configured by the user. These inputs can be configured
from the HMI, or by using the SICom program.
First of all, we will define the concepts of physical input and logical input. The physical inputs are the
equipment’s real inputs. The SIA-D has four physical inputs: Input 1, Input 2, Input 3 and Input 4.
These physical inputs can be associated with the logical inputs. The SIA-D has the following logical
inputs:
Logical inputs Description
Input 52 a Circuit breaker contact a
Input 52 b Circuit breaker contact b
Phase blocking Phase functions block for tripping bus
Neutral blocking Neutral functions block for tripping bus
External trip If it receives a pulse in excess of 20 ms (to avoid spurious components), it generates a 200 ms
pulse to be used in the trip output.
Oscillograph start Oscillograph start
The inputs are configured by associating the logical inputs with the physical input that they require, or
else no association is made if that logical input is not in use. Therefore, a single physical input can be
associated with more than one logical input.
An example of this is shown in the table below:
Input 1 Input 2 Input 3 Input 4
No configuration
52 a X
52 b X
50P blocking X
50N blocking X
External trip
Oscillograph start X
In this example, input 1 is assigned to the circuit breaker contact a, input 2 is assigned to the circuit
breaker contact b, input 3 is assigned to the 50P function blocking and to the oscillograph start and
input 4 is assigned to the 50N function blocking. The external trip input is not associated with any
physical input.