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ISOMETER isoRW425
Bender ISOMETER isoRW425 User Manual
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Insulation monitoring device for unearthed
IT AC-, AC/DC an
d DC systems
(IT systems)
for railway applications up to 3(N)AC, AC/DC 4
00 V
Software version: D418 V2.xx
ISOMETER® isoRW425
isoRW425_D00052_
03_M_XXEN / 02.2017
2
Table of Contents
Table of Contents
3
Important Information
7
How to Use this Manual
7
Technical Support: Service and Support
8
First Level Support
8
Repair Service
8
Field Service
8
Training Courses
9
Delivery Conditions
9
Inspection, Transport and Storage
9
Warranty and Liability
10
Disposal
10
Safety Instructions
12
General Safety Instructions
12
Work Activities on Electrical Installations
12
Intended Use
13
Function
14
Device Features
14
Functional Description
15
Monitoring of the Insulation Resistance (R Mode)
16
Monitoring of the Insulation Impedance (Z Mode)
16
Undervoltage/Overvoltage Monitoring
17
Self Test/Error Codes
17
Malfunction
20
Assignment of the Alarm Relays K1/K2
20
Measuring and Response Times
20
Password Protection (On, OFF)
22
Factory Setting FAC
22
External, Combined Test or Reset Button T/R
22
Fault Memory
22
History Memory His
23
Interface/Protocols
23
Installation, Connection and Commissioning
25
Installation
25
Connection
27
Commissioning
30
Device Operation
31
Display Elements in Use
32
Menu Structure
33
Menu "AL
34
Response Value Setting
34
Menu "Out
35
Configuration of the Relay Operating Mode
35
Relay Alarm Assignment "R1" and "R2" and LED Assignment
35
Fault Memory Configuration
37
Interface Configuration
37
Menu "T
38
Time Configuration
38
Menu "Set
39
Function Configuration
39
Measuring Value Display and History Memory
40
Data Access Using the BMS Protocol
43
Data Access Using the Modbus RTU Protocol
44
Reading out the Modbus Register from the ISOMETER
44
Command of the Master to the ISOMETER
45
Answer of the ISOMETER® to the Master
45
Write Modbus Register (Parameter Setting)
45
ISOMETER® Answer to the Master
46
Exception Code
47
Structure of the Exception Code
47
Modbus Register Assignment of the ISOMETER
48
Device-Specific Data Type of the ISOMETER
56
Device Name
56
Measuring Values
56
Float = Floating Point Value of the Channels
57
AT&T = Alarm Type and Test Type (Internal/External)
58
R&U = Range and Unit
59
Alarm Assignment of the Relays
60
Channel Descriptions
62
Isodata Data String
65
Technical Data
67
Tabular Presentation
67
Standards, Approvals and Certifications
71
Ordering Information
71
Index
73
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Bender ISOMETER isoRW425 Specifications
General
Brand
Bender
Model
ISOMETER isoRW425
Category
Measuring Instruments
Language
English
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