Siemens 7UT51

13
Binary-Signal Inputs, Signal Contacts, Trip Contacts, and LED Indicators
7UT51 v3
124 PRIM-2330C
Figure 13.2
Signal Contacts
Figure 13.3
LED Targets

Each signal contact is controlled
by up to 20 events.
For example:

0141 Failure of internal 24V power supply
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0511 General trip of the relay
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1566 49-Thermal O/L prot.1: Thermal warn.

1571 49-Trip by thermal O/L protection 1

5671 87-Diff protection: General Trip
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5821 Restricted Ground Fault: General Trip
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5921 Transformer tank prot: General trip
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Use to...

Sound alarms for operators
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Signal other protection devices
Signal Contacts
Event 1
Event 2
:
:
Event 20
Make Capacity: 20 W/VA
Break Capacity: 20 W/VA
Switching Voltage: 250 V
Permissible Current: 1 A
Configurable
7UT512: 4 0
7UT513: 5 5
Self-Test Alarm: 1

Each LED is controlled by up to 20 events.
For example:

95 Parameters are Being Set
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163 Failure: Current Symmetry Supervision
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501 General Fault Detection
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1566 Thermal Overload 1 Warning Stage
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1571 Trip by Thermal Overload Protection 1
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4533 External Trip 1 is Active
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5616 87 Function is Blocked
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5621 87 Time Delay Started
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5641 87 Function Blocked by Harmonics
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5651 87 Blocked by Saturation on Phase A

5817 87N Time Delay Started
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Each event can either latch (“memorized”),
or not latch (“not memorized”) an LED.

Latched LEDs can be reset using a key on
the front panel, a binary-signal input, or an
attached PC running WinDIGSI.
LED Targets
Event 1
Event 2
:
:
Event 20
Power: 1
Blocked: 1
Configurable
7UT512: 6
7UT513: 14