DOLD VARIMETER IMD RL 5898 원본 지침 번역 - 페이지 5

{카테고리_이름} DOLD VARIMETER IMD RL 5898에 대한 원본 지침 번역을 온라인으로 검색하거나 PDF를 다운로드하세요. DOLD VARIMETER IMD RL 5898 17 페이지. Insulation monitor
DOLD VARIMETER IMD RL 5898에 대해서도 마찬가지입니다: 원본 지침 번역 (8 페이지), 모니터링 기술 (12 페이지), 모니터링 기술 (12 페이지)

페이지 인쇄

Notes

Risk of electrocution!

Danger to life or risk of serious injuries.

WARNING

• Disconnect the system and device from the power supply and ensure

they remain disconnected during electrical installation.

• The display of the voltage is not in real time. The Value on the display is

updated at the end of a measuring cycle. The absence of voltage of the

system and the device have to be checked with suitable measuring devices!

• The terminals of the control input X1-X2 have no galvanic separation to

the measuring circuit L(+) / L(-) and are electrically connected together,

therefore they have to be controlled by volt free contacts or bridge. These

contacts ore bridges must provide a sufficient separation depending

on the mains voltage on L(+)/L(-).

• Please do not connect external voltage to terminals X1/X2. The control

must only be made by bridging X1 and X2.

• The coupling unit RL 5898 or RP 5898 must only be used in conjunction

with the RP5897/321 on a voltage system and not just by itself.

Attention!

• Before checking insulation and voltage, disconnect the monitoring device

RN 5897/321 from the power source!

• In one voltage system only one insulation monitor can be used. This has

to be observed when interconnecting two separate systems..

• Device terminals PE1 and PE2 must always be connected via separate

lines to different terminal points of the protective-conductor system.

• The device must not be operated without PE1/PE2 connection!

• If telegrams fail in the bus communication due to EMC interference,

grounding the bus cable screening on both sides could be a remedy.

With this earthing, attention must be paid to possibly occuring equalizing

currents, which could occur with larger potential differences between

the bus participants.

Attention!

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• The main measuring circuit can be connected with its terminals L(+) and

L(-) both to the DC and also AC side of a mixed network; it is done most

practically where the primary incoming power supply takes place e.g.

with battery networks with connected inverters on the DC side, with

Generators/Transformers with connected Rectifiers or inverters on the

AC-side. To monitor a 3NAC system the device can be connected single

pole, (L(+) and L(-) are bridged, to the neutral of the 3p4w system. The

3 phases have a low-Ωic (approx. 3 – 5 Ω) connection via the transfor-

mer windings so also insulation failures of the not directly connected

phases are detected. Via Modbus the correct type of network must be

selected (see „Connection Examples").

• If a monitored AC system includes galvanically connected DC circuits

(e.g. via a rectifier), an insulation failure on the DC side can only be

detected correctly, when a current of min 10 mA can flow via the semi-

conductor connections.

• If a monitored DC system includes galvanically connected AC circuits

(e.g. via an inverter), an insulation failure on the AC side can only be

detected correctly, when a current of min 10 mA can flow via the semi-

conductor connections.

• For the register of the Insulating resistance the value 0xFFFF is transmitted

via Modbus if R

> 2 MΩ. If no valid mains voltage value was measured

or the mains voltage is < 5 V, the value 0xFFFF is transmitted for the

12.07.22 en / 604A