Catalogues - ri-r50-series-insulation-monitoring

Catalogue RI-R50 series INSULATION MONITORING

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INSULATION MONITORING

VERSIONS FOR NETWORKS ac MAX 500 V STRONGLY DISTORTED

WITH HARMONIC COMPONENTS AND/OR DIRECT-CURRENT COMPONENTS

GENERAL

These devices allow insulation monitoring on earth of electrical networks in alternating till 500 V A.C. isolated (IT systems). Measure's technique adopted is particular because measure's signal is codified and varying. This works in order to let a right measure of insulation independently from under-control network. The presence in the network of strong distortions with high harmonic components (sub harmonic) and direct-current components could cause measure's problems to others techniques. This solution allow device's use.

RI-R50 in network with rectifiers, power's electronics, variable-speed drive and so on...Surveying leakage current to earth it's possible to measure insulation level.

RI-R50 have a large amount of programming possibilities with frontal button and digital display three-digit for visualising measuring and programming parameters.

In output there is a relay output voltage-free with functions adjustable. Optionally, there is also a serial output RS485 for bidirectional communication with a professional monitoring system (MANUFACTURERS OF PLC, PC and so on). Communication's protocol used is MODUBUS-RTU.

MODELLI

RI-R50 Vaux: 230 V 50-60 Hz (standard version) RI-R50 Vaux: 115 V 50-60 Hz (optional version)

FUNCTIONS AND OPERATORS - LEGENDA

3 4 5

1 Display for visualising under-control parameters' degree and for visualising settings

2 green LED SET for indication of device's programming status

3 yellow LED ALARM for indication alarm for out-threshold parameter's degree

4 red LED OUTPUT RELAY for indication status of output auxiliary relay

5 red LED ERROR/LINK FAIL for indication internal failure's alarm, lacked connection of under-control network

6 red LED R for indication visualisation of insulation's resistance parameter (kohm); flashing indication for out-threshold parameter

7 red LED Z for indication visualisation of insulation's impedance parameter; flashing indication for out-threshold parameter

8 +/- buttons UP/DOWN for selecting visualisation's parameter, for adjusting device's settings and for visualisation of max and min memorized degrees

9 RESET / SET button for access to device's programming, for alarm stop and for memorized degrees' reset

10 TEST / ENTER button for testing the device and remote signalling panels and for confirming SETUP settings

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insu ation moritor RI-R50

SET

ALARM OUTPUT ERROR/ RELAY LINK FAIL

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MIN/ MAX

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