Binary-Signal Inputs, Signal Contacts, Trip Contacts, And Led Indicators; Overview - Siemens 7UT51 Instruction Manual

Binary-Signal Inputs, Signal Contacts, Trip Contacts, and LED Indicators

7UT51 v3
13 Binary Signal Inputs, Signal Contacts, Trip Contacts,
-
and LED Indicators
This chapter describes how to program (marshal) the
relay to communicate with other devices that are part
of the protection scheme, including the binary inputs,
signal-output contacts, and trip contacts and also to
the user.
13.1

Overview

The 7UT51 can be programmed (or mashalled) to
allow external signal contact inputs to function within
the relay, and to cause internal functions to activate
signal contact outputs and fault contact outputs. These
functions can control the functioning of the relay in
many ways.
The functions of the contact inputs, contact outputs,
and LED indicators are preset at the factory and can
be changed either by using the keypad on the front
panel or by using a PC with WinDIGSI software.
Binary-Signal Inputs
Signal
Circuit
Go LO to HI when
rise above 19V
Input
Go LO to HI when
rise above 65V
Voltage Range
Constant Current Load: 2.5 mA
-
Figure 13.1 Binary Signal Inputs
PRIM-2330C
Internal
Event(s)
Event 1
Event 2
:
:
Event 20
10
0V - 250V
7UT512: 2
7UT513: 5
Input of a password is required for configuring the
control logic. The factory set password is "000000."
Without entering the password, the settings can be
read but not changed. If you change any of the control
logic settings, the relay microprocessor will
automatically reset, momentarily placing the relay out
of service.
The logical annunciation functions can be used in
multiple. For example, one annunciation function can
trigger several signal relays, several trip relays,
additionally be indicated by LEDs, and be controlled
by a binary input unit. The restriction is that the total of
all physical input/output units (binary inputs plus signal
relays plus LEDs plus trip relays) which are to be
associated with one logical function, must not exceed
a number of ten (10). If this number is exceeded, the
display will show a corresponding message.
„ Each binary-signal input is actuated
by voltage in a signal-circuit.
„ Each input controls up to 20 events.
For example:
„ 3 Time Synchronization Signal
„
4 Trigger Waveform Capture
„ 5 Reset LEDs
„ 7+8 Change Active Settings Set
„ 11 User Defined Event #1
„ 356 Manual Close of Breaker
„ 1603 Turn-off 49-2 Thermal Overload Function
„
1604 Block Contacts for 49-2 Warnings
„ 1605 Block Contacts for 49-2 Trip Events
„ 5603 Turn-off 87 Function
„
5605 Block Contacts for 87 Trip Events
„
Each event is configured to occur either
when the binary input is actuated (HI), or
when it ceases to be actuated (LO).
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