10
D-PRO Protection relay Technical Manual
Input
Function
Name
Delay
Description
DIF.0000
Not used.
Input not used.
DIF.2001
Reset command of the alarms,
When the input becomes
“active”, the controller carries out a complete reset
of all anomalies.
DIF.2063
Protections override
When the input is “active”, all the protections, which normally act as alarms,
become mere warnings.
DIF.2151
Select configuration 1.
When the input becomes
“active”, the configuration parameters of the
alternative 1 are copied in the working parameters.
DIF.2152
Select configuration 2.
When the input becomes
“active”, the configuration parameters of the
alternative 2 are copied in the working parameters.
DIF.2153
Select configuration 3.
When the input becomes
“active”, the configuration parameters of the
alternative 3 are copied in the working parameters.
DIF.2154
Select configuration 4.
When the input becomes
“active”, the configuration parameters of the
alternative 4 are copied in the working parameters.
DIF.2704
Disable the protections on the 4
th
current.
When this input is “active”, the auxiliary current protection (normally used
for the differential protection) is disabled.
DIF.2705
Disable the protections on the
analogue measures.
When this input is “active”, the thresholds set on analogue measurements
with bit 13 ON in the third configuration parameter do not cause the
intervention of the related protections.
DIF.2711
Protections disabling - level 1
Disable the protections configured in the parameter P.0201.
DIF.2712
Protections disabling - level 2
Disable the protections configured in the parameter P.0202.
DIF.2713
Protections disabling - level 3
Disable the protections configured in the parameter P.0203.
DIF.2714
Protections disabling - level 4
Disable the protections configured in the parameter P.0204.
DIF.2715
Protections disabling - level 5
Disable the protections configured in the parameter P.0205.
DIF.2716
Protections disabling - level 6
Disable the protections configured in the parameter P.0206.
DIF.2717
Protections disabling - level 7
Disable the protections configured in the parameter P.0207.
DIF.2718
Protections disabling - level 8
Disable the protections configured in the parameter P.0208.
DIF.3001
GCB circuit breaker status.
Yes
An input with such configuration is used to communicate the plant GCB
(Genset) circuit breaker status to the protection relay.
DIF.3201
Generic status (page 1).
If this input is “active”, the controller shows the text configured by the
parameters associated to the input.
DIF.3202
Important generic status (page 1).
If this
input is “active”, the controller shows the text configured by the
parameters associated to the input.
DIF.3203
Generic status (page 2).
If this input is “active”, the controller shows the text configured by the
parameters associated to the input.
DIF.3204
Important generic status (page 2).
If this input is “active”, the controller shows the text configured by the
parameters associated to the input.
DIF.3205
Generic status (page 3).
If
this input is “active”, the controller shows the text configured by the
parameters associated to the input.
DIF.3206
Important generic status (page 3).
If this input is “active”, the controller shows the text configured by the
parameters associated to the input.
DIF.4001
Generic warning.
Yes
If the input is “active”, a warning is activated: the message shown is the one
set in the parameters associated to the input.
DIF.4004
Generic shut-down.
Yes
When the input is “active”, a shut-down is activated: the text displayed is the
one set in the parameters associated to the input.
4.3.2
In addition to the 8 digital physical inputs, the controller also operates 16 virtual digital inputs.
The same are operated by the controller just as if they were physical inputs (with no limitation),
but the status of the virtual inputs is not acquired from the hardware, but it is determined
through the software. In fact, every digital input can have an AND/OR logic associated, which
determines its status (see par.4.4.2).
Each virtual digital input has three parameters associated; see below for example the ones
related to virtual digital input 1; for the parameters of the other inputs see document [8] or the
I/O configuration page of the BoardPrg3.
We have:
•
One parameter which configures its function (P.2151 for the virtual digital input 1).
•
One parameter which configures any message (P.2152 for the virtual digital input 1).
•
One parameter which configures the (P.2153 for the virtual digital input 1).
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