18
Input channels
8…17
(modified 96-12)
The input channels 8…17 are used to read other
binary signals than circuit breaker and discon-
nector status information. The binary signals
can be external contact signals or internal binary
signals e.g. starting and tripping signals of the
protection relay modules. For the definition of
internal and external signals see chapter
"Intermodular control signal exchange" in the
user´s manual of the feeder terminal.
The status of the binary inputs 8…17 can be
read via the SPA-bus. The status of input chan-
nels 8…13 is also indicated locally with LEDs
on the front panel. The LED of the activated
input is lit and when the input is deactivated the
indicator is switched off. The indicators of the
input channels 8…13 can individually be set to
be memory controlled, which means thatthe
indicator of a channel activated once for at least
10 ms is not switched off until it has been reset.
Using parameter S2, each input channel can be
selected to be active at high input signal state (1)
or at low input signal state (0). High state
activation means that an input is considered to
be active if a voltage is applied on the corre-
sponding external input or if a protection relay
module has activated its output signal. Low state
activation is the opposite to high state activa-
tion. As a default all the inputs are activated at
high input signal state.
Characteristics of input channels 8…17:
- An events is formed by a status change
- The channels can be used to activate the
outputs OPEN1…6 and CLOSE1…6
- The channels can be used to inhibit the out-
puts OPEN1…6 and CLOSE1…6
- The channels can be used to activate one of the
outputs SIGNAL5 or 6
- The channels can be included in the interlock-
ing logic
- The channels can be included in the Direct
Output Control logic
- Channel 10 can be used as a control input for
inhibiting auto-reclosings by means of an
external control signal.
- Channel 11 can be used as an energy pulse
counter input, see chapter "Scaling of mea-
sured values"
- Channel 14 can be used as external start
initiation of auto-reclosing, see chapter "Auto-
reclosing"
Via one input channel one signal output (SIG-
NAL5 or 6) and one control output (OPEN1…6
or CLOSE1…6) can be activated simultane-
ously. The interlocking logic is checked when the
OPEN or CLOSE outputs are activated. The
position of the REMOTE/LOCAL key switch
has no effect when input channels 8…17 are used
to activate the OPEN or CLOSE outputs.
Accordingly one SIGNAL output can be acti-
vated and one control output inhibited simulta-
neously. The output to be activated or inhibited
is selected with parameters S3 and S4. The
output to be activated or inhibited has to be
configured to a circuit breaker or a disconnector.
If an input channel has been selected to control
a SIGNAL output, the output is activated as
long as the input is active. The length of the
opening and closing pulse is defined by the SPA
bus variables V5 and V6 and does not depend
on the input pulse length.
Example 9:
Programming of input 8. The programming
can be done in the operation mode.
>99W8S2:1:XX
; Define input 8 to be active at high
state (1)
>99W8S3:40:XX
; Configure input 8 to activate output
SIGNAL5
>99W8S4:20:XX
; Configure input 8 to activate output
OPEN1
>99WV151:1:XX
; Store the programmed parameters
Fig. 13. Operation of outputs SIGNAL5 and
OPEN1 when input channel 8 in example 9 is
activated.
If an input channel is used to inhibit a control
signal the opening or closing of an object is
inhibited as long as the input is active. If the
interlockings are set out of use (S199=0), input
channels 8…17 cannot be used to inhibit the
control of the OPEN and CLOSE outputs.
If input 11 operates as an energy pulse counter
input or input 10 as a control input for inhibit-
ing auto-reclose functions, these inputs cannot
be used for other purposes. As a default input
channels 8…17 operate as ordinary input chan-
nels, and do not activate or inhibit any outputs.
NOT ACTIVATED
ACTIVATED
NOT ACTIVATED
ACTIVATED
ACTIVATED
NOT ACTIVATED
INPUT CHANNEL 8
SIGNAL5 OUTPUT
OPEN1 OUTPUT
Defined by V5
