DOLD RN 5897/311 Translation Of The Original Instructions

Monitoring Technique
VARIMETER IMD
Insulation monitor
RN 5897/311
RN 5897/311
Coupling devices
RL 5898 RP 5898
Product Description
The insulation monitor RN 5897/311 of the VARIMETER IMD family is a
solution for optimal insulation monitoring of modern IT systems.The device
can be used in the most flexible way for AC, DC and AC/DC systems even
with large leakage capacity to earth (PE). The setting of the parameters
and the switching values is done via Modbus. All measured values, device
statuses and parameters can also be read out via Modbus. All functions
of the device can also be operated via Modbus. The operating status is
indicated user friendly via a multicolour LED. With a sealable transparent
cover the device is protectet against manipulation.
All Technical Data in this list relate to the state at the moment of edition. We reserve the right
for technical improvements and changes at any time.
RR 5898
Translation
of the original instructions
Your Advantages
• Preventive fire and system protection
• Detection of symmetric and asymmetric insulation faults
• Quick fault localisation through selective earth fault detection to L+ and L-
• Universal application in non-earthed AC, DC, AC/DC networks
up to AC max. 250 V or DC max. 300 V
• With connection facility of an external coupling device:
RL 5898 for voltages up to AC 400 V / DC 500 V
RP 5898 for voltages up to AC 690 V / DC 1000 V
RR 5898 for voltages up to AC 1000 V / DC 1500 V
• Easy adjustment of response values and setting parameter via
Modbus RTU-interface
• Suitable for large leakage capacitances up to 1000 µF
• Erweiterter Betriebstemperaturbereich von - 40 ... + 70 °C
• Optimised reaction time for large leakage capacitances
• Monitoring also with voltage-free mains
• Measuring circuit L(+)/L(-) with broken wire detection (can be switched off)
• Protective conductor PE1/PE2 with broken wire detection
(can't be switched off)
• 2 changeover contacts each for insulation failures-Pre-alarm and
-alarm each galvanically isolated
• With galvanic separated Modbus RTU interface
Features
• Insulation monitoring according to IEC/EN 61557-8
• Trigger output for insulation fault locating system
• 2 separate adjustable response thresholds
(using e.g. for pre-Alarm and Alarm)
• Setting range of 1st response value (Pre-Alarm): 1 kΩ ... 2 MΩ
• Setting range of 2nd response value (Alarm): 1 kΩ ... 2 MΩ
• Energized or de-energized on trip can be selected for indicator relay
• With multicolour status LED to indicate the state of operation
• Setting the maximum leakage capacitance to shorten the response time
• Automatic and manual device self-test
• Alarm storage selectable
• Protection against manipulation by sealable transparent cover
• External control input for combined Test-/Reset-button
• 2 wide voltage input for auxiliary voltage
• Width 52.5 mm
Approvals and Markings
1)
Canada / USA
RN 5897 and RL / RP 5898 only
1)
Applications
Insulation monitoring of:
• Non-earthed AC, DC, AC/DC networks
• UPS systems
• Networks with frequency inverters
• Battery networks
• Networks with direct current drives
• Hybrid and battery-powered vehicles
• Mobile generator sets
1
1)
AC/DC
20.03.25 de / 940A