MC3V-X/10-4
Doc. N°
MO-0355-ING
Microe
ner
- Copyright 20
11
FW
940.09.01.x
Date
06
.0
1
.20
11
Rev.
4
Pag.
15
of
32
5. Digital Inputs
The firmware can manage up to 13 digital inputs and 7 output relays; among these, 3 digital inputs and 3
output relays are available on the relay module, the remaining are available on additional expansion
(UX10-4) modules controlled via the CAN-Bus communication channel.
A Digital Input is activated when its terminals are shorted by a cold contact.
Available in the Main relay
D1
Digital Input “D1”
(terminals 22 - 19)
It is usable as Function Blocking Input.
D2
Digital Input “D2”
(terminals 22 - 21)
It is used for Remote Trip.
D3
Digital Input “D3”
(terminals 22 - 20)
The digital Input triggers the oscillographic recording, any
time the DI changes from closed to open.
(UX10-4) Additional Expansion Module
D1
Digital Input “1.D1”
D2
Digital Input “1.D2”
D3
Digital Input “1.D3”
D4
Digital Input “1.D4”
D5
Digital Input “1.D5”
D6
Digital Input “1.D6”
D7
Digital Input “1.D7”
D8
Digital Input “1.D8”
D9
Digital Input “1.D9”
D10
Digital Input “1.D10”
By the interface program “MSCom 2” it is possible view the
status or via RS485 port (Modbus protocol).
6. Self-diagnostic
The Relay incorporates a sophisticated self-diagnostic feature that continuously checks the following
elements:
A/D conversion
Checksum of the settings stored into E
2
Prom.
DSP general operation (Power, Routines, etc.)
Lamp test (only on manual test).
Any time Power is switched on, a complete test is run; then, during normal operation, the test runs
continuously and the checksum is done any time a parameter is stored into E
2
Prom.
If during the test any Relay Internal Failure (I.R.F) is detected:
If “ I.R.F. “ is programmed to “ Trip “, the programmed output relays are operated same as on
tripping of any protection function operation is stored in the “ Last Trip “ and the I.R.F. signal led is
set to flashing.
If “ I.R.F. “ is programmed to “NO Trip”, and only the I.R.F. signal led is set to flashing.
