Communication solutions for power utilities
UNIVERSAL TELEPROTECTION TPU-1
INSTALLATION AND COMMISSIONING MANUAL Web version TPU-1R - Rev. 5.9 (May 2018)
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4.4
PROTECTION-SIDE INTERFACE MODULE
(CIRCUITS FROM ONE TO TWO COMMANDS)
Each IPTU protection-side interface module has a plug-in connector on the front plate, the
use of which is shown in Figure 24.
Figure 24 IPTU protection-side interface module connector
Each auxiliary relay is configurable from the Management System for command transmission
signalling, command output or alarm and, if be the case, unblocking. In the case of alarm, the
relay will act for one or more of the following causes:
RTC synchronization failure,
Telemeasuring failure, IEC 61850 link failure, Power-supply failure, Main module failure,
Module failure in slot (no.), Manual blocking (analog and digital), Automatic test failure (analog
and digital), Incorrect SIC security identification code (digital), Loss of synchronism (digital),
Incorrect identification code (digital), BER alarm (digital), Remote Alarm Indication (digital
IOCT type), Loss of signal (digital IOCT type), Reception blocking (analog), Error of reception
(analog), Low Signal/Noise ratio (analog), Signal loss (analog), Low guard-signal level/Excess
guard-signal level (analog), MTD alarm (IP interface), CDV alarm (IP interface), CLR alarm (IP
interface), IP link failure (IP interface).
The earth connection of the cable must be connected to the upper fixing screw. Make sure
that the module is completely fixed to the chassis.