Functional diagrams for disturbance recorder and trip circuit supervision - Arc protection - Merging unit - Motor protection - Application Manual - REM620 Motor Protection and Control - 2.0 FP1 IEC - IEC - 01.06.2023

REM620 Application Manual
Figure 1. Disturbance recorder
image/svg+xmlRDRE1C1C2C3C4C5C6C7C8C9C10C11C12C13C14C15C16C17C18C19C20C21C22C23C24C25C26C27C28C29C30C31C32C33C34C35C36C37C38C39C40TRIGGEREDDISTURBANCE RECORDERPHLPTOC1_STARTPHHPTOC2_STARTMPTTR1_ALARMMPTTR1_BLK_RESTARTMPTTR1_OPERATEPREVPTOC1_STARTPREVPTOC1_OPERATEESMGAPC1_ST_EMERG_ENAMPDIF1_OPERATESTTPMSU1_LOCK_STARTSTTPMSU1_OPR_IITSTTPMSU1_OPR_STALLC41C42C43C44C45C46C47C48C49C50C51C52C53C54C55C56C57C58C59C60C61C62C63C64PHLPTOC1_OPERATEPHIPTOC1_STARTDPHLPDOC1_STARTDPHHPDOC2_STARTEFHPTOC1_STARTEFIPTOC1_STARTDEFLPDEF1_STARTARCSARC1_OPERATEORPHPTUV1/2/3_STARTPHPTOV1/2/3_STARTPSPTUV1/2_STARTNSPTOV1/2_STARTSEQSPVC1_FUSEF_3PHSEQSPVC1_FUSEF_UCCSPVC1_FAILCCBRBRF1_TRRETCCBRBRF1_TRBUX115_BI1_CB_CLOSEDX115_BI2_CB_OPENX105_BI2_EMERGENCY_START_ENABLEX105_BI8_BUS_VT_MCB_OPENMDSOPT1_ALARMMAPGAPC1_STARTSPCGAPC1_O9_DR_MANUAL_TRIGGERARCSARC1/23_ARC_FLT_DETROVPTOV1/2/3_STARTPHHPTOC1_STARTORPHHPTOC1/2_OPERATEPHIPTOC1_OPERATEDPHLPDOC1_OPERATEEFLPTOC1_OPERATEOREFHPTOC1_OPERATEEFIPTOC1_OPERATEDEFLPDEF1_OPERATEDEFHPDEF1_OPERATEDEFHPDEF1_STARTORPHPTUV1/2/3_OPERATEPHPTOV1/2/3_OPERATEPSPTUV1/2_OPERATENSPTOV1/2_OPERATEFRPFRQ1/2/3/4/5/6_OPERATEFRPFRQ1/2/3/4/5/6_STARTMNSPTOC1_STARTMNSPTOC2_STARTMNSPTOC1/2_BLK_RESTARTMNSPTOC1/2_OPERATELOFLPTUC1_STARTLOFLPTUC1_STARTLOFLPTUC1/2_OPERATEMPDIF1_OPR_LSMPDIF1_OPR_HSJAMPTOC1_OPERATESTTPMSU1_MOT_STARTX105_BI7_LINE_VT_MCB_OPENX105_BI3_EXTERNAL_RESTART_INHIBITMAPGAPC2_STARTMAPGAPC3_STARTMAPGAPC1/2/3_OPERATEDPHHPDOC1_STARTEFLPTOC1_STARTDPHHPDOC1/2_OPERATEROVPTOV1/2/3_OPERATEX115_BI7_SPEED_SWITCHARCSARC2_OPERATEARCSARC3_OPERATE

All START and OPERATE outputs from the protection stages are routed to trigger the disturbance recorder or, alternatively, only to be recorded by the disturbance recorder, depending on the parameter settings. Additionally, some selected signals from different functions and eight binary inputs totally from X110 and X115 are also connected.

The manual trigger signal from push button is used to trigger disturbance recorder manually as needed.

Note: The disturbance recorder main application sheet contains the disturbance recorder function block and the connections to variables.
Note: Once the order of signals connected to binary inputs of RDRE is changed, the changes need to be made in the Parameter Setting tool.
Figure 2. Circuit supervision
image/svg+xmlSEQSPVC1FUSEF(1)60(1)FUSEF_3PHBLOCKCB_CLOSEDDISCON_OPENMINCB_OPENFUSEF_U3I3UTCSSCBR1TCS(1)TCM(1)BLOCKALARMORTRPPTRC1_TRIPX115-BI2CB Open PositionX115-BI1CB Closed PositionX115-BI8Bus MCB Open PositionORLED 9TRIP CIRCUIT SUPERVISION AND FUSE FAILURE ANDCIRCUIT SUPERVISIONALARMBLOCKFAILCCSPVC1MCS 3I(1)CSM 3I(1)Io3I

One trip circuit supervision function is in used by default, TCSSCBR1 for power output X100-PO3. Both functions are blocked by the Master Trip TRPPTRC1 and the circuit breaker open signal. The ALARM output indication is connected to the LED 9.

Note: It is assumed that there is no external resistor in the circuit breaker tripping coil circuit connected in parallel with the circuit breaker normally open auxiliary contact.
Note: Parameters for TCSSCBR1 need to be properly set.

Failures in current measuring circuits are detected by CCSPVC1. When a failure is detected, blocking signal is activated in current protection functions that are measuring calculated sequence component currents, and unnecessary operation can be avoided. The alarm signal is also connected to the alarm LED 9.

The fuse failure supervision SEQSPVC1 detects failures in voltage measurement circuits. Failures, such as an open miniature circuit breaker, are detected and the alarm is also connected to the alarm LED 9.