AZT-9
16
ZPrAE Sp. z o.o.
For section 2 of the energy storage additional delay time can be defined, allowing for
generating two switch-off impulses in defined time intervals.
Detection of instrument transformer oversaturation has a fixed time delay of 150 ms
between energising and operation that allows for filtering accidental disturbances that may
occur during switching the transformer on.
4.6. Configuration of an MWD input card
The following parameters can be set for the binary input card, MWD:
-
Time t_on
: delay time from the moment a signal is sent to the input until activation
of its logic,
-
Time t_off
: hold time from the disappearance of energising signal until deactivation
of logic,
-
Input type
: input mode AC or DC (for AC mode additional filtering time needs to be
taken into account – 20 ms).
The binary input card (MWD) is active only when auxiliary power supply is connected.
Logic signals from the MWD card may be used to introduce various types of additional
signalling functions or to trigger the energy storages by external signal. Each of the inputs
can be used to introduce additional control functions (continuity of circuits, read of circuit
breaker status, etc.) by sending a logic signal from a binary input to the relevant
configurable LED, magnetic indicator or configurable relay.
4.7. Configuration of a relay card (MWP)
Group “MWP relays” settings allows for configuring the operation mode of each
available relay of the MWP card. The following parameters can be set for individual relays:
-
Active:
allows for switching the selected relay on or off,
-
Reset:
defines a way of releasing the relay after the energising signal disappears
(after selecting ”manual” the relay is sustained until the operator resets it, in case of
“automatic” the relay is released when the energising signal disappears),
-
Negated signal:
:
allows for negating the status of the signal energising the relay,
-
Signal No.:
allows for selecting a signal from the list of available logic signals that is
used to energise the configurable relay.
List of available logic signals is described in section 7.
The relay output card (MWP) is active only when auxiliary power supply is connected to
the device.
4.8. LEDs.
Group “LEDs” settings allows for setting 8 configurable LEDs fitted on the front panel of
the device. The following parameters can be set for each LED:
-
Active:
allows for switching the selected LED on or off,
-
Colour:
allows for selecting the LED colour,
-
Type:
allows for setting light modes: continuous, pulsating,
-
Reset:
defines a way of turning off the LED after the energising signal disappears
(after selecting “manual” LED will be turned on until the operator resets it, in case of
“automatic” LED is reset when the energising signal disappears),
-
Negated signal:
allows for negating the status of the signal energising the LED,
-
Signal No.:
allows for selecting a signal from the list of available logic signals that is
used to light the LED.
