Omicron CMC 353 User manual

CMC 353
Reference Manual

2
Test Set CMC 353
Article Number: VESD 2004 - Manual Version: CMC353.AE.2 - Year: 2010
© OMICRON electronics. All rights reserved.
This manual is a publication of OMICRON electronics GmbH.
All rights including translation reserved. Reproduction of any kind, e.g., photocopying, microfilming, optical
character recognition and/or storage in electronic data processing systems, requires the explicit consent of
OMICRON electronics.
Reprinting, wholly or in part, is not permitted. The product information, specifications, and technical data
embodied in this manual represent the technical status at the time of writing and are subject to change without
prior notice.
We have done our best to ensure that the information given in this manual is useful, accurate and entirely
reliable. However, OMICRON electronics does not assume responsibility for any inaccuracies which may be
present.
The user is responsible for every application that makes use of an OMICRON product.
OMICRON electronics translates this manual from the source language English into a number of other
languages. Any translation of this manual is done for local requirements, and in the event of a dispute between
the English and a non-English version, the English version of this manual shall govern.

Table of Contents
3
TABLE OF CONTENTS
Preface...................................................................................................................... 7
Safety Instructions .................................................................................................. 8
1 Designated Use ............................................................................................ 11
2 Introduction .................................................................................................. 12
3 Operating the CMC 353 ............................................................................... 12
3.1 System Components ..................................................................................................... 12
3.2 Safe Use of the Connecting Cables .............................................................................. 13
3.2.1 Test Lead Adapter for Non-Safety Sockets ....................................................... 13
3.3 Regular Test Leads for Safety Sockets ......................................................................... 14
3.3.1 Terminal adapters.............................................................................................. 14
3.3.2 M4 (0.15") Cable Lug Adapters ......................................................................... 15
3.3.3 M5 (0.20") Cable Lug Adapters ......................................................................... 15
3.4 Starting the Test System ................................................................................................ 16
4 Setup and Function ..................................................................................... 19
4.1 Block Diagram ............................................................................................................... 20
4.1.1 Voltage Output (Voltage Amplifier) .................................................................... 21
4.1.2 Current Output (Current Amplifier)..................................................................... 22
4.1.3 Binary Inputs 1 - 10............................................................................................ 23
4.1.4 Binary Output..................................................................................................... 23
4.1.5 AUX DC (DC Power for Test Objects) ............................................................... 24
4.1.6 CPU ................................................................................................................... 25
4.1.7 Power Supplies (DC-DC)................................................................................... 25
4.2 Signal Generation.......................................................................................................... 25
4.2.1 Accuracy and Signal Quality.............................................................................. 26
5 Connections and Interfaces ........................................................................ 27
5.1 Front Panel Connections ............................................................................................... 27
5.1.1 Generator Combination Socket for VOLTAGE OUTPUT and CURRENT
OUTPUT ............................................................................................................ 30

CMC 353 Reference Manual
4
5.2 Connections on the Back Panel .................................................................................... 32
5.2.1 Ethernet Ports ETH1 and ETH2 ........................................................................ 32
5.2.2 Ethernet / Network Settings ............................................................................... 34
5.2.3 SELV Interfaces................................................................................................. 36
5.2.3.1 External Interface ("ext. Interf.") ......................................................... 36
5.2.3.2 LL out 1-6 (Low Level Outputs 1-6) .................................................... 36
6 Technical Data .............................................................................................. 39
6.1 Main Power Supply........................................................................................................ 39
6.2 Insulation Coordination.................................................................................................. 40
6.3 Outputs .......................................................................................................................... 41
6.3.1 Extended Frequency Range .............................................................................. 42
6.3.2 Current Outputs ................................................................................................. 43
6.3.3 Voltage Outputs ................................................................................................. 48
6.3.3.1 Power Diagram for Three-Phase Operation ....................................... 49
6.3.3.2 Power Diagram for Single-Phase Operation ...................................... 50
6.3.4 Operational Limits in Conjunction with Mains Supply ........................................ 51
6.3.5 Operational Limits with Current and Voltage Amplifier in Parallel ..................... 51
6.3.6 Low Level Outputs "LL out" for External Amplifiers ........................................... 52
6.3.7 Low-Level Binary Outputs ("ext. Interf.")............................................................ 54
6.3.8 Binary Output Relays......................................................................................... 56
6.3.9 DC Supply (AUX DC)......................................................................................... 57
6.4 Inputs.............................................................................................................................. 58
6.4.1 Binary Inputs...................................................................................................... 58
6.4.2 Counter Inputs 100 kHz (Low Level) ................................................................. 61
6.5 Technical Data of the Ethernet Ports............................................................................. 62
6.6 Environmental Conditions............................................................................................... 63
6.6.1 Climate............................................................................................................... 63
6.6.2 Shock and Vibration........................................................................................... 63
6.7 Mechanical Data............................................................................................................ 63
6.8 Cleaning ........................................................................................................................ 63
6.9 Safety Standards, Electromagnetic Compatibility (EMC) and Certificates ..................... 64

Table of Contents
5
7 Increasing the Output Power, Operating Modes ....................................... 65
7.1 Safety Instructions for High Current Output................................................................... 65
7.2 Single-Phase Operation of the CMC 353 ...................................................................... 66
7.2.1 1 x 32 A High Burden Mode (L-L) ...................................................................... 66
7.2.2 1 x 64 A High Current Mode (LL-LN) ................................................................. 67
7.2.3 Single-Phase Voltage ........................................................................................ 68
7.3 Operation with External Amplifiers ................................................................................. 69
8 Troubleshooting ........................................................................................... 71
8.1 Troubleshooting Guide .................................................................................................. 71
8.2 Potential Errors, Possible Causes, Remedies............................................................... 72
8.3 Overheating .................................................................................................................... 73
9 CMC 353-Related Products and Accessories ........................................... 75
9.1 CMA Current Amplifiers & CMS Voltage Amplifiers ...................................................... 75
9.2 CMControl-3 ................................................................................................................... 76
9.3 Time Synchronization Accessories................................................................................. 77
9.3.1 CMGPS.............................................................................................................. 77
9.3.2 CMIRIG-B .......................................................................................................... 79
9.4 100TX to 100FX-SC Converter ...................................................................................... 81
9.5 Wiring Accessories ......................................................................................................... 82
9.5.1 Standard Delivery Scope ................................................................................... 82
9.5.2 Optional CMC Wiring Accessory Package ........................................................ 83
9.6 Ordering Information....................................................................................................... 86
Appendix ................................................................................................................ 91
Contact Information / Technical Support .............................................................95
Index ....................................................................................................................... 97

CMC 353 Reference Manual
6

Preface
7
PREFACE
The purpose of this reference manual is to familiarize users with the
CMC 353 test set and to show how to properly use it in various application
areas.
The manual contains important tips on how to use the CMC 353 safely,
properly, and efficiently. Its purpose is to help you avoid danger, repair costs,
and down time as well as to help maintain the reliability and life of the
CMC 353.
This manual is to be supplemented by existing national safety standards for
accident prevention and environmental protection.
The reference manual should always be available at the site where the
CMC 353 is used. It should be read by all personnel operating the test set.
Note: The OMICRON Test Universe software also installs a PDF version of
this reference manual. It can directly be opened by a mouse-click from the
help topic "User Manuals of OMICRON Test Universe".
In addition to the reference manual and the applicable safety regulations in
the country and at the site of operation, the usual technical procedures for
safe and competent work should be heeded.
Note: This reference manual describes the CMC 353 hardware - that is, the
physical test set. In order to get familiar with the software for controlling and
configuring the CMC 353, please refer to the software manuals and/or the
OMICRON Test Universe Help.
For Your Safety Please Note
The CMC 353 test set can output life-hazardous voltages and currents.
Throughout the manual, this symbol indicates special safety-relevant
notes/directions linked to the possibility of touching live voltages and/or
currents. Please thoroughly read and follow those directions to avoid life-
hazardous situations.
This symbol indicates potential hazards by electrical voltages/currents
caused by, for example, wrong connections, short-circuits, technically
inadequate or faulty equipment or by disregarding the safety notes of the
following sections.

CMC 353 Reference Manual
8
SAFETY INSTRUCTIONS
Before operating the CMC 353 test set, carefully read the following
safety instructions.
Only operate (or even turn on) the CMC 353 after you have read this
reference manual and fully understood the instructions herein.
The CMC 353 may only be operated by trained personnel. Any
maloperation can result in damage to property or persons.
Rules for Use
•TheCMC 353 should only be used when in a technically sound
condition. Its use should be in accordance with the safety regulations for
the specific job site and application. Always be aware of the dangers of
the high voltages and currents associated with this equipment. Pay
attention to the information provided in the reference manual and the
software documentation.
•TheCMC 353 is exclusively intended for the application areas specified
in section 1, "Designated Use" on page 11. The manufacturer/
distributors are not liable for damage resulting from unintended usage.
The user alone assumes all responsibility and risk.
• The instructions provided in this reference manual and the associated
software manuals are considered part of the rules governing proper
usage.
• Do not open the CMC 353 or remove any of its housing components.
Orderly Practices and Procedures
• The reference manual (or its PDF version) should always be available on
site where the CMC 353 is used.
Note: The OMICRON Test Universe software installs a PDF version of
this reference manual. To view the manual, start the Test Universe Help
from the Start Page or any test module and navigate to the table of
contents entry User Manuals (at the beginning of the table of contents).
Click Hardware Manuals. In this topic you find a direct link to
"CMC 353". To open the manual, click the link.
• Personnel assigned to using the CMC 353 must have read this reference
manual and fully understood the instructions herein.
• Do not carry out any modifications, extensions or adaptations at the
CMC 353.

Safety Instructions
9
Operator Qualifications
• Testing with the CMC 353 should only be carried out by authorized and
qualified personnel.
• Personnel receiving training, instruction, direction, or education on the
CMC 353 should remain under the constant supervision of an
experienced operator while working with the equipment.
Safe Operation Procedures
• Follow the instructions in sections 3.2 and 3.4 that describe the safe use
of the connecting cables and how to set the CMC 353 into operation.
•TheCMC 353 must only be used from a power outlet that has a
protective earth.
• Do not block the access to safety-relevant test set components like the
main power switch or the power cord. In cases of an emergency, these
components need free and quick access.
• Do not connect any of the front panel VOLTAGE/CURRENT OUTPUTS
1 ... 3 or VOLTAGE OUTPUT 4, respectively, to protective earth. The N
sockets, however, may be connected to protective earth.
• When connecting to the banana plug sockets, only use cables with
4 mm/0.16 " safety banana connectors and plastic housing. Always
insert plugs completely.
• Before connecting and disconnecting test objects, verify that all outputs
have been turned off. Never connect or disconnect a test object while the
outputs are active.
• When disconnecting power supply cables or test leads, always start from
the device feeding the power or signal.
• All sockets on the front panel are to be considered dangerous with
working voltages up to 300 Vrms. Only use cables that meet these
respective requirements to connect to the equipment.
• Red Signal Light :
If the voltage on any of the four voltage outputs or on the "AUX DC"
output exceeds 42 V, the associated signal light lights up.
• Do not insert objects (e.g., screwdrivers, etc.) into the sockets or into the
ventilation slots.
• Do not operate the CMC 353 under wet or moist conditions
(condensation).
• Do not operate the CMC 353 when explosive gas or vapors are present.

CMC 353 Reference Manual
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• The SELV interfaces (SELV = Safety Extra Low Voltage) of the
CMC 353 - "Host Interf.", “ETH1”, “ETH2”, "LL out" (Low Level Outputs)
or "ext. Interf." - should only have external devices connected that meet
the requirements for SELV equipment according to EN 60950 or IEC
60950.
• For applications drawing DC current: The load may not exceed 3 mH
because of dangerous feedback current.
• When setting up the CMC 353, make sure that the air slots on the back,
top, and bottom of the test set remain unobstructed.
• Voltages up to 1 kV can be present inside the CMC 353! Therefore,
opening the CMC 353 is only permitted by qualified experts either at the
factory or at certified external repair centers.
•IftheCMC 353 is opened by the customer, all guarantees are
invalidated.
•CMC 353 Ethernet functionality (see section 5.2.1, "Ethernet Ports ETH1
and ETH2" on page 32):
- Connect ETH1 and ETH2 only to Ethernet ports.
•IftheCMC 353 seems to be functioning improperly, please contact the
OMICRON Tecnical Support (see section "Contact Information /
Technical Support" on page 95).
Changing the Power Fuse
• Unplug the power cord between the test set and the power source.
• The fuse is located at the back of the test set.
• Fuse type: T12.5 AH 250 V (wire fuse 5 × 20 mm).
For safety reasons please use only fuse types recommended by the
manufacturer. Refer to 6.1, "Main Power Supply" on page 39 for more
information.

Designated Use
11
1DESIGNATED USE
The CMC 353 is a computer-controlled test set for the testing of:
• protection relays
• transducers
• energy meters
• PQ (power quality) analyzers.
In addition to the test functions, optional high-performance measurement
functions [0 Hz (DC) ... 10 kHz] for ten analog inputs are available.
The CMC 353 is part of the OMICRON Test Universe which, in addition to
the physical test set, consists of a test software for a computer with
Windows1operating system, and, when needed, external voltage and/or
current amplifiers, GPS or IRIG-B synchronization units or other
accessories.
Any other use of the CMC 353 is considered improper and may result in
damage to property or persons.
Features of the CMC 353:
• Output of test quantities:
-4×voltage
- 3 x current
• Capability of protection testing with IEC 61850 devices.
• Control of external amplifiers (up to 12 additional test signals) through
the low-level interface.
• Supply of DC voltages to the test object.
• Output of binary signals.
• Capture of binary signals and counter impulses.
1Windows is a US registered trademark of Microsoft Corporation.

CMC 353 Reference Manual
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2INTRODUCTION
The CMC 353 is a part of the OMICRON Test Universe which, in addition to
the physical test set, consists of a test software for a computer with
Microsoft Windows operating system, and, when needed, external voltage
and/or current amplifiers, GPS or IRIG-B synchronization units or other
accessories (refer to section 9, "CMC 353-Related Products and
Accessories" on page 75).
This reference manual describes the hardware of the CMC 353. The
configuration and control of the CMC 353 is carried out by the test software
of the OMICRON Test Universe. For more detailed information, please read
the user manuals and the OMICRON Test Universe Help.
Note: The OMICRON Test Universe software installs a PDF version of this
reference manual. To view the manual, start the Test Universe Help from the
Start Page or any test module and navigate to the table of contents entry
User Manuals (at the beginning of the table of contents). Click Hardware
Manuals. In this topic you find a direct link to "CMC 353". To open the
manual, click the link.
3OPERATING THE CMC 353
Only operate (or even turn on) the CMC 353 after you have read this
reference manual and fully understood the instructions herein.
3.1 System Components
Before operating the CMC 353 for the first time, use the packing list to verify
that all components of the test system are available.
To set the CMC 353 into operation you need the following components:
•CMC 353 with (mains) power cable
• Connecting cable CMC 353 ↔PC
• Connecting cable CMC 353 ↔test object
• PC equipped with an Ethernet port and the OMICRON Test Universe
software.

Operating the CMC 353
13
3.2 Safe Use of the Connecting Cables
3.2.1 Test Lead Adapter for Non-Safety Sockets
The optional CMC Wiring Accessory Package includes flexible test lead
adapters of 5 cm/2 " length with a retractable sleeve (6 x black, 6 x red).
These test leads are to be used as adapters, only. They are intended to
make the 4 mm/0.16 " banana plugs of the standard test leads fit into
non-safety sockets (see illustration above).
Never directly insert one of these retractable sleeves into a CMC 353
output socket at the front of the test set. This does not comply with the
designated purpose of these leads and is contrary to the safety regulations.
Plug only the regular test leads of 2.0 m/6 ft. length into the CMC 353
output safety sockets.
Retractable sleeve
↔
Safety socket of, for example,
the CMC 353 test set.
↔
Regular test lead
Non-safety socket
Test lead adapter

CMC 353 Reference Manual
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3.3 Regular Test Leads for Safety Sockets
Use the regular test leads of 2.0 m/6 ft. length to connect the CMC 353
output to other safety sockets of, for example, amplifiers, test objects or to
banana adapters in control cabinets.
3.3.1 Terminal adapters
The optional CMC Wiring Accessory Package includes flexible terminal
adapters to connect the regular test leads to screw-clamp terminals.
The terminal adapters have blank ends. Therefore, turn off the voltage
before connecting these adapters. Always insert an adapter with its blank
end into the terminal strip first, and fasten it before connecting it to a test
lead.
Regular test lead
or to safety socket,
e.g., at test object.
CMC 353 test set
or amplifier
to terminal strip
↔
Regular test lead
Terminal adapter

Operating the CMC 353
15
3.3.2 M4 (0.15") Cable Lug Adapters
The optional CMC Wiring Accessory Package includes M4 (0.15") cable lug
adapters to connect regular test leads to screw-clamp terminals of
SEL/ABB/GE relays (and others).
The cable lugs have blank ends. Therefore, turn off the voltage before
connecting such a lug. Always insert the cable lug with its blank end into the
terminal strip first, and fasten it, before connecting it to a test lead.
3.3.3 M5 (0.20") Cable Lug Adapters
The optional CMC Wiring Accessory Package includes M5 (0.20") cable lug
adapters to connect regular test leads to common and most widespread
screw-clamp terminal types.
The cable lugs have blank ends. Therefore, turn off the voltage before
connecting such a lug. Always insert the cable lug with its blank end into the
terminal strip first, and fasten it, before connecting it to a test lead.
↔
Regular test lead
M4 (0.15") cable lug adapter
↔
Regular test lead
M5 (0.20") cable lug adapter

CMC 353 Reference Manual
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3.4 Starting the Test System
The following description assumes that the computer has been set up and
that the test software for the OMICRON Test Universe has been installed.
For detailed instructions about the OMICRON Test Universe software, refer
to the manual "The Concept". This manual is provided in PDF format. It is
available on your hard disk after the installation of OMICRON Test Universe.
To view the manual, start the Test Universe Help from the Start Page or any
test module and navigate to the table of contents entry User Manuals (at
the beginning of the table of contents). Click Software Manuals. In this topic
you find a direct link at "Getting Started with OMICRON Test Universe - The
Concept". To open the manual, click the link.
This description refers both to the computer and to the CMC 353. It does not
take into consideration any external devices. If the system is driven by
external amplifiers, follow the instructions in section 7.3, "Operation with
External Amplifiers" on page 69.
When setting up the CMC 353, it is important to make sure that the
ventilation slots remain unobstructed.
Connecting the System Components:
Figure 3-1:
Connecting the CMC 353
to the computer
1. Connect the CMC 353 to the PC with the supplied connecting cable1:
•CMC 353: Connector ETH1 or ETH2 at the rear side of the test set
• PC: Ethernet port (labeled “EtherNET”, “LAN” or similar).
1To ensure the required EMC compatibility, we recommended to use the OMICRON-supplied
cable, only.
OMICRON-supplied connecting cable
CMC 353

Operating the CMC 353
17
For instructions to help you to incorporate network-capable CMC test
sets into a computer network, please refer to the manual Network-
based CMC Test Sets. This manual is provided in PDF format. It is
available on your hard disk after the installation of OMICRON
Test Universe. Its name is Network-based test sets.pdf.
To view the manual, start the Test Universe Help from the Start Page
or any test module and navigate to the table of contents entry User
Manuals (at the beginning of the table of contents). Click Read Me
First. In this topic you find a direct link to "Network-based CMC Test
Sets". To open the manual, click the link.
2. Connect the CMC 353 test set to the mains.
3. Turn on both devices.
4. Start the OMICRON Test Universe software.
A comprehensive hardware test is carried out on the CMC 353. In the
process, switching sounds from relays in the CMC test set can be heard.
If any irregularities are determined during the course of this self-test, the
software displays a corresponding error message on the PC monitor
(refer to section 8, "Troubleshooting" on page 71).

CMC 353 Reference Manual
18

Setup and Function
19
4SETUP AND FUNCTION
The computer-controlled OMICRON test system employs the concept of a
functional division between the software running on the computer and the
CMC 353 hardware connected to the test object.
OMICRON Test Universe test software running on the computer
• controls the test signals
• processes measurement data
• creates reports
• generates data entries.
The CMC 353 test set
• creates test signals (currents, voltages, binary signals)
• measures the reaction (analog and binary) from the test object
• supplies DC-current to test objects.

CMC 353 Reference Manual
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4.1 Block Diagram
Figure 4-1:
Main block diagram of the
CMC 353
DC
AC
Main Group SELV Group
AUX DC
Internal Supplies
VOLTAGE
CURRENT
CPU
System Control
(Signal Generator)
PE
Mains
Host
Interface
DC DC
reinforced isolation
reinforced isolation
reinforcedisolation
PC
Ext.
Ampl.
Counter
1,2
Bin. Out
11...14
CMGPS
IRIG-B
3421
BINARY OUTPUT
LL out
1-6
ext.
Interf.
10
9
8
65
43
2
1
BINARY INPUT
working isolation
Control Control Control AUX DC
VOLTAGE OUTPUT
CURRENT OUTPUT
3 x 0...32A
4 x 0...300V
0...264V
DC
working isolation