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Summary of Contents for socomec ISOM K-20
- Page 1 INSTALLATION AND OPERATING MANUAL ISOM K-20 Insulation monitoring devices...
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Page 2: Table Of Contents
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Page 3: Documentation
1. DOCUMENTATION All documentation relating to ISOM K-20 and its sensors is available on the www.socomec.fr SOCOMEC website at the following address: ISOM K-20 - 551805A - SOCOMEC... -
Page 4: Hazards And Warnings
The assembly, use, servicing and maintenance of this equipment must only be carried out by trained, qualified professionals. SOCOMEC is not responsible for any failure to follow the procedures given in these instructions. 2.1. Risks of electrocution, burns or explosion Caution: risk of electric shock Ref. -
Page 5: Risks Of Damaging The Unit
• The unit has not been damaged during transportation • The device reference number conforms to your order • The packaging includes the device fitted with removable terminal blocks and a Quick Start Guide. ISOM K-20 - 551805A - SOCOMEC... -
Page 6: Presentation
4.1. About ISOM K-20 ISOM K-20 monitors the insulation of the unearthed IT systems (IMD* function). ISOM K-20 allows you to monitor the insulation of IT systems, by delivering alerts if the insulation level drops below the thresholds set by the operator. -
Page 7: Principle
4.1.2. Principle 4.1.3. Functions ISOM K-20 offers a number of options, including: Insulation monitoring • Rf, Ce measurements • Min. Rf measurement 4.1.4. Electrical readings ISOM K-20 AC ISOM K-20 DC Multi-measurement • • Alarms On set thresholds (R •... -
Page 8: Mounting
5. MOUNTING The following paragraphs describe the installation of ISOM K-20. 5.1. Recommendations and safety Refer to the safety instructions (section “2. HAZARDS AND WARNINGS”, page 4). 5.2. Installing ISOM K-20 5.2.1. Door mounted 5.2.2. DIN rail mounted 7.5 or 15... -
Page 9: Connections
7 mm RESET < 1s 0.14 mm² - 1.5 mm² Max. length < 3m Not in use The inputs/outputs above are defined as SELV (safety extra-low voltage): 1 (for DC model), 3, 5,. ISOM K-20 - 551805A - SOCOMEC... - Page 10 It is not permitted for use on a 230VAC/30 VDC relay or a SELV signal. You can use different phases on the 2 output relays, but they must be from the same three-phase network TEST / RESET Connecting K-20 Dry contacts Max. length < 3 m Not allowed Authorised ISOM K-20 - 551805A - SOCOMEC...
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Page 11: Connecting To The Electrical Network And Circuits
6.2. Connecting to the electrical network and circuits The insulation monitoring system ISOM K-20 is suitable for single-phase, two-phase, three-phase and DC networks. It ensures the insulation of a complete powered IT system is monitored. 6.2.1. Description of the main network and circuit combinations... -
Page 12: Status Leds, Buttons And Auto-Addressing
ALARM2 7.1.2. Autotest In order to ensure a high degree of safety when measuring the insulation and in operation, ISOM K-20 offers advanced autotesting functions. After powering on the devices, all their internal measurement functions as well as the data memories and connections to the network and the PE protection conductor are tested. -
Page 13: Configuration
8. CONFIGURATION Configuration can be carried out using the Easy Config software. Use the Easy Config software to configure ISOM K-20 via USB. To use the USB link, you must have Easy Config installed. 8.1. Configuration using Easy Config System 8.1.1. Connection modes... -
Page 14: Configuring The Electrical Network
In the electrical network configuration menu, the user selects the type of network (three-phase, single-phase, etc.), the nominal voltage, the network frequency. Configuration can also be done locally from the ISOM K-20 Example: three-phase network 400VAC: On this screen you can configure the type of IMD connection: Three-phase or two-phase g "2P"... -
Page 15: Insulation
The "Insulation Profiles" screen defines the general settings of the device: Choosing the profile is an easy way to support the measurement algorithm on the intended application, with improved filtering/measurement times. You can choose between 3 profiles: • Custom • Distribution • Control/command ISOM K-20 - 551805A - SOCOMEC... -
Page 16: Configuring Alarms
In this screen, you can set key information linked to the thresholds Alarm1 and Alarm2. The Rf threshold value can be set between 1K and 1000K. You can OK a fault automatically (= "Auto") or manually with BP RESET ("COM") ISOM K-20 - 551805A - SOCOMEC... - Page 17 In this screen, you can set when to activate a startup alarm in the following cases: • Measuring failure • voltage network outside specified range • Device overheating • The IMD measurement is outside the tolerance range and is not shown • Internal device failure ISOM K-20 - 551805A - SOCOMEC...
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Page 18: On-Screen Configuration
Restart device DIAG Information Configuration view State I/O Note: when you change a setting, first confirm it by pressing "OK", then exit the menu by pressing "OK" again to make sure your changes are saved. ISOM K-20 - 551805A - SOCOMEC... -
Page 19: Quick Setup
"Alarm 2" "Min." to change the threshold for ALARM 2 with hotkeys "" and "" , then confirm with "OK". - 6. To exit and return to the home screen, briefly press "QUICK-ACCESS/HOME". ISOM K-20 - 551805A - SOCOMEC... -
Page 20: Specifications
= 1 µF: typically 4s Measurement voltage Um 75 V depending on profile Measurement current Im Max 1 mA Max. external DC voltage Ufg 510 V Measurement range Ce K-20: 0 - 30 µF ISOM K-20 - 551805A - SOCOMEC... -
Page 21: Input/Output Specifications Hmi
2014 (EN 61010-1:2010) Insulation coordination Installation category III, Degree of pollution 2 compliance with EMC Directive 2014/30/EU of 26 February 2014 (EN 61326-2-4:2013) 9.1.7. Service life MTTF (Mean Time to Failure) > 100 years ISOM K-20 - 551805A - SOCOMEC... - Page 22 HEAD OFFICE: SOCOMEC SAS 1-4 RUE DE WESTHOUSE 67235 BENFELD, FRANCE www.socomec.com 551805A...
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