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ISOMETER isoPV425
Bender ISOMETER isoPV425 User Manual
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Manual
ISOMETER® isoPV425
with AGH420 coupling device
Insulation monitoring device for unear
thed
DC circuits (IT systems)
for photovoltaic systems up to
3(N)AC,
AC 690 V / DC 1000 V
Software version: D404 V2.xx
isoPV425_D00028_09_M_XXEN/05.201
8
2
Table of Contents
Default Chapter
3
Table of Contents
3
1 Important Information
6
How to Use this Manual
6
Technical Support: Service and Support
7
First Level Support
7
Repair Service
7
Field Service
8
Training Courses
9
Delivery Conditions
9
Inspection, Transport and Storage
9
Warranty and Liability
10
Disposal
11
2 Safety Instructions
12
General Safety Instructions
12
Work Activities on Electrical Installations
12
Intended Use
13
3 Function
14
Device Characteristics
14
Functional Description
15
Monitoring the Insulation Resistance
16
Undervoltage/Overvoltage Monitoring
17
Self Test/Error Codes
17
Malfunction
20
Signalling Assignment of the Alarm Relays K1/K2
20
Measuring and Response Times
21
Password Protection (On, OFF)
22
Factory Setting FAC
22
External, Combined Test or Reset Button T/R
22
Fault Memory
23
History Memory His
23
Interface/Protocols
23
4 Installation, Connection and Commissioning
25
Installation
25
Wiring Diagram
27
Commissioning
30
5 Operation of the Device
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
36
Interface Configuration
37
Menu "T
37
Time Configuration
37
Menu "Set
38
Function Configuration
38
Measuring Value Display and History Memory
38
6 Data Access Using the BMS Protocol
40
7 Data Access Using the Modbus RTU Protocol
41
Reading out the Modbus Register from the ISOMETER
41
Master Sends a Command to the ISOMETER
41
ISOMETER® Answers the Master
42
Writing to Modbus Registers (Parameter Setting)
42
Master Sends a Command to the ISOMETER
42
ISOMETER® Answer to the Master
43
Exception Code
43
Structure of the Exception Code
43
8 Modbus Register Assignment of the ISOMETER
44
ISOMETER® Device-Specific Data Type
49
Device Name
49
Measuring Values
50
Float = Floating Point Value of the Channels
50
AT&T = Alarm Type and Test Type (Internal/External)
51
R&U = Range and Unit
52
Alarm Assignment of the Relays
53
Channel Descriptions
54
9 Isodata Data String
56
10 Technical Data
58
Tabular Presentation
58
Standards, Approvals and Certifications
64
Ordering Data
65
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Bender ISOMETER isoPV425 Specifications
General
Brand
Bender
Model
ISOMETER isoPV425
Category
Measuring Instruments
Language
English
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