Compact Electric CDMR-51 매뉴얼 - 페이지 9

{카테고리_이름} Compact Electric CDMR-51에 대한 매뉴얼을 온라인으로 검색하거나 PDF를 다운로드하세요. Compact Electric CDMR-51 15 페이지. Digital line monitoring relay

Line Monitoring Relay CDMR-51

Ba>:

f<<, f<, f>, f>>:

PS>:

Note: If the line voltage is used as supply voltage a correct storage of these data cannot be guaranteed in case of total

line drop out.

There are three more menues in the "Event Monitor" chain, showing currently starting functions, currently tripping functions and

currently energized output relays.

External blocking input "B"

Depending on the parameter value stored in the menue "Special Settings \Ext. Blocking U,f" the external input affects the

CDMR-51 operation as follows:

„Ext.Blocking U,f"

0 ............

1 ............

2 ............

Self-monitoring

DATA ERROR

Parameter No:xxx

The number "xxx" in the display corresponds to the parameter number in the left column of table 1. If two numbers are

listed for one parameter, the first number refers to the corresponding star-type voltage, the second one to the corre-

sponding delta voltage. In the case of a checksum error of this kind, elimination may be successful by entering the pa-

rameter value once again (also in the case the displayed parameter value is correct).

Parameter numbers 91 to 97 are used for internal scaling. In this case the unit has to be returned to the factory.

The K5 control circuit is desiged to perform a watchdog function. If the K5 is configured as negated, it will be de-

energized not only in case of a data error or power supply failure, but also in case of a controller hardware failure.

Additional or alternative to self-monitoring the K5 can be assigned to any other monitoring function without restriction.

CDMR51e_man_A11.doc

/ User Manual

unbalance voltage

line frequency

phase shift values in L1, L2 and L3

Effect

Blocking only the Phase Shift PS>

Blocking effect to PS>, U<<, U<, f<<, f<, f>, f>> and Ba>.

If blocking is released and a line fault present, tripping is performed after the time delay

programmed for the corresponding monitoring function.

Blocking of all monitoring functions. If blocking is released and a line fault present, tripping is

performed after the time delay programmed for the corresponding monitoring function.

The relay has a self-monitoring program for error detection in the data memory (checksum er-

rors) which in the error case displays a message "DATA ERROR Parameter No. xxx". If the pa-

rameter "Selfmonitor.->K5" is set, the output relay K5 is changed to the alert state.

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