Omicron CMC 356 User manual

CMC 356
User Manual

2
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Article Number VESD2003 - Version CMC356.AE.4
© OMICRON electronics. All rights reserved.
This manual is a publication of OMICRON electronics.
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
2.1 Options Available for the CMC 356 Test Set................................................................. 12
3 Operating the CMC 356 ............................................................................... 13
3.1 System Components ..................................................................................................... 13
3.2 Safe Use of the Connecting Cables ............................................................................... 14
3.2.1 Test Lead Adapter for Non-Safety Sockets ....................................................... 14
3.3 Regular Test Leads for Safety Sockets .......................................................................... 15
3.3.1 Terminal adapters.............................................................................................. 15
3.3.2 M4 (0.15") Cable Lug Adapters ......................................................................... 16
3.3.3 M5 (0.20") Cable Lug Adapters ......................................................................... 16
3.4 Starting the Test System ................................................................................................ 17
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 / Analog Input (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 356 Reference Manual
4
5.2 Connections on the Back Panel .................................................................................... 32
5.2.1 Ethernet Ports ETH1 and ETH2 ........................................................................ 32
5.2.2 ! Button .............................................................................................................. 33
5.2.3 Associate Button................................................................................................ 33
5.2.4 Status LED A, B................................................................................................. 34
5.2.5 Ethernet / Network Settings ............................................................................... 34
5.2.6 SELV Interfaces................................................................................................. 36
5.2.6.1 External Interface ("ext. Interf.") ......................................................... 36
5.2.6.2 LL out 1-6 (Low Level Outputs 1-6) .................................................... 37
5.2.6.3 LL out 7-12 (Low Level Outputs 7-12) - Option "LLO-2"..................... 37
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 Low Level Outputs "LL out" for External Amplifiers ........................................... 52
6.3.6 Low-Level Binary Outputs ("ext. Interf.")............................................................ 54
6.3.7 Binary Output Relays......................................................................................... 56
6.3.8 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.............................................................................. 63
6.5.1 The NET-1B Board ............................................................................................ 63
6.5.2 The NET-1 Board............................................................................................... 64
6.6 Environmental Conditions............................................................................................... 65
6.6.1 Climate............................................................................................................... 65
6.6.2 Shock and Vibration........................................................................................... 65
6.7 Mechanical Data............................................................................................................ 65
6.8 Cleaning ........................................................................................................................ 65
6.9 Safety Standards, Electromagnetic Compatibility (EMC) and Certificates ..................... 66
6.10 Option ELT-1 ................................................................................................................. 67

Table of Contents
5
6.10.1 General Data ..................................................................................................... 68
6.10.2 Analog DC Input (VDC, IDC) ............................................................................. 69
6.10.3 Accuracy of the Analog DC Input....................................................................... 70
6.10.4 Measuring Currents ........................................................................................... 71
6.10.5 Accuracy of Binary/Analog Inputs with Option ELT-1 ........................................ 72
6.10.6 Multimeter Mode ................................................................................................ 73
6.10.6.1 Accuracy of AC Measurements .......................................................... 74
6.10.6.2 Channel Cross-Talk............................................................................ 76
6.10.6.3 Accuracy of Phase Measurement....................................................... 77
6.10.6.4 Accuracy of Frequency Measurement................................................ 79
6.10.6.5 Accuracy of Power Measurement....................................................... 80
6.10.7 Harmonic Analysis ............................................................................................. 84
6.10.7.1 Accuracy of Frequency Measurement................................................ 85
6.10.7.2 Accuracy of Amplitude Measurement................................................. 86
6.10.7.3 Accuracy of Phase Measurement....................................................... 87
6.10.8 Transient Recording .......................................................................................... 88
6.10.9 Trend Recording ................................................................................................ 89
6.11 Option LLO-2 (Low Level Outputs)................................................................................. 90
7 Increasing the Output Power, Operating Modes ....................................... 91
7.1 Safety Instructions for High Current Output................................................................... 91
7.2 Single-Phase Operation of the CMC 356 ...................................................................... 92
7.2.1 1 x 32 A High Burden Mode (L-L-L-L)................................................................ 92
7.2.2 1 x 64 A High Burden and High Current Mode (L-L).......................................... 93
7.2.3 1 x 128 A High Current Mode (LL-LN) ............................................................... 94
7.2.4 Single-Phase Voltage ........................................................................................ 95
7.3 Two-Phase Operation..................................................................................................... 96
7.3.1 2 x 64 A High Current Mode (LL-LN) ................................................................. 96
7.3.2 2 x 32 A High Burden Mode (L-L) ...................................................................... 97
7.4 Three-Phase Current Mode with High Burden ............................................................... 98
7.5 Operation with External Amplifiers ................................................................................. 99
8 Troubleshooting ......................................................................................... 101
8.1 Troubleshooting Guide ................................................................................................ 101
8.2 Potential Errors, Possible Causes, Remedies............................................................. 102
8.3 Overheating .................................................................................................................. 103

CMC 356 Reference Manual
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9 CMC 356-Related Products and Accessories ......................................... 105
9.1 CMA Current Amplifiers & CMS Voltage Amplifiers .................................................... 105
9.2 CMControl-6 ................................................................................................................. 106
9.3 Time Synchronization Accessories............................................................................... 107
9.3.1 CMGPS............................................................................................................ 107
9.3.2 CMIRIG-B ........................................................................................................ 109
9.4 100TX to 100FX-SC Converter .................................................................................... 111
9.5 Current Clamp C-PROBE1........................................................................................... 112
9.6 Accessories for Meter Testing ...................................................................................... 113
9.6.1 Scanning Head OSH256 ................................................................................. 113
9.6.2 Interface Box IFB256 ....................................................................................... 114
9.6.3 Scanning Head TK 326.................................................................................... 115
9.6.4 Scanning Head TVS 6.15/1 ............................................................................. 116
9.6.5 Adapter Cable for Scanning Heads ................................................................. 117
9.6.6 CMLIB B .......................................................................................................... 118
9.6.7 CMLIB A .......................................................................................................... 119
9.6.8 CPOL Polarity Tester....................................................................................... 120
9.6.9 Connection Cable for REF 54x Relays (ABB) with Low Level Signal Inputs ... 121
9.6.10 C-Shunt............................................................................................................ 122
9.7 Wiring Accessories ....................................................................................................... 123
9.7.1 Standard Delivery Scope ................................................................................. 123
9.7.2 Optional CMC Wiring Accessory Package ...................................................... 124
9.8 Ordering Information..................................................................................................... 127
Appendix .............................................................................................................. 133
Contact Information / Technical Support ...........................................................137
Index ..................................................................................................................... 139

Preface
7
PREFACE
The purpose of this reference manual is to familiarize users with the
CMC 356 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 356 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 356.
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 356 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 356 hardware - that is, the
physical test set. In order to get familiar with the software for controlling and
configuring the CMC 356, please refer to the software manuals and/or the
OMICRON Test Universe Help.
For Your Safety Please Note
The CMC 356 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 356 Reference Manual
8
SAFETY INSTRUCTIONS
Before operating the CMC 356 test set, carefully read the following
safety instructions.
Only operate (or even turn on) the CMC 356 after you have read this
reference manual and fully understood the instructions herein.
The CMC 356 may only be operated by trained personnel. Any
maloperation can result in damage to property or persons.
Rules for Use
•TheCMC 356 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 356 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 356 or remove any of its housing components.
Orderly Practices and Procedures
• The reference manual (or its "electronic PDF pendant", which is installed
to your computer with the OMICRON Test Universe software) should
always be available on site where the CMC 356 is used.
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". The
Test Universe Help can be launched by clicking Help on the Start Page.
• Personnel assigned to using the CMC 356 must have read this reference
manual and fully understood the instructions herein.
• Do not carry out any modifications, extensions or adaptations at the
CMC 356.

Safety Instructions
9
Operator Qualifications
• Testing with the CMC 356 should only be carried out by authorized and
qualified personnel.
• Personnel receiving training, instruction, direction, or education on the
CMC 356 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 356 into operation.
•TheCMC 356 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 356 under wet or moist conditions
(condensation).

CMC 356 Reference Manual
10
• Do not operate the CMC 356 when explosive gas or vapors are present.
• The SELV interface (SELV = Safety Extra Low Voltage) of the CMC 356 -
"Host Interf." or “ETH1”, "LL out" (Low Level Outputs), "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 356, 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 356! Therefore,
opening the CMC 356 is only permitted by qualified experts either at the
factory or at certified external repair centers.
•IftheCMC 356 is opened by the customer, all guarantees are
invalidated.
•CMC 356 Ethernet functionality (see section 5.2.1, "Ethernet Ports ETH1
and ETH2" on page 32):
- It is a product of laser class 1 (EN 60825, IEC 60825).
- Connect ETH1 only to Ethernet ports.
•IftheCMC 356 seems to be functioning improperly, please contact the
OMICRON Tecnical Support (see section "Contact Information /
Technical Support" on page 137).
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 356 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 356 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.
Features of the CMC 356:
• Output of test quantities:
-4×voltage
- two galvanically separated three-phase current outputs.
• 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.
• Option ELT-1:
Measurement and analysis of DC and AC voltages and currents by
means of a clip-on probe (refer to section 6.10, "Option ELT-1" on page
67) or a measurement shunt.
Any other use of the CMC 356 is considered improper and may result in
damage to property or persons.
1Windows is a US registered trademark of Microsoft Corporation.

CMC 356 Reference Manual
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2INTRODUCTION
The CMC 356 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 356-Related Products and
Accessories" on page 105).
This reference manual describes the hardware of the CMC 356. The
configuration and control of the CMC 356 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 also installs a PDF version of
this reference manual. It can directly be opened by a mouse-click from the
Test Universe Help topic "User Manuals".
2.1 Options Available for the CMC 356 Test Set
The following options are available for the CMC 356 test set:
•ELT-1
This hardware option enables:
• Measurement of analog signals using the combined
BINARY / ANALOG INPUT sockets.
• High-precision measurement of DC signals using the ANALOG DC
INPUT sockets.
For detailed information, please refer to section 6.10, "Option ELT-1" on
page 67).
•LLO-2 (low level outputs 7-12)
SELV interface connector holding two independent generator triples
(SELV = Safety Extra Low Voltage). These six additional high accuracy
analog signal sources can serve to either control an external amplifier or
to directly provide small signal outputs.
For more information please refer section 6.3.5, "Low Level Outputs
"LL out" for External Amplifiers" on page 52.

Operating the CMC 356
13
• FL-6
In a number of countries (e.g., Japan), the export of multiphase
generators able to output steady signals with a frequency between
600 Hz and 2000 Hz is not permitted.
The FL-6 option constraints the maximum fundamental frequency that
the test set can generate to 599 Hz. Test sets with the FL-6 option can
therefore be exported without any restrictions (refer to 6.3, "Outputs" on
page 41).
3OPERATING THE CMC 356
Only operate (or even turn on) the CMC 356 after you have read this
reference manual and fully understood the instructions herein.
3.1 System Components
Before operating the CMC 356 for the first time, use the packing list to verify
that all components of the test system are available.
To set the CMC 356 into operation you need the following components:
•CMC 356 with (mains) power cable
• Connecting cable CMC 356 ↔PC
• Connecting cable CMC 356 ↔test object
• PC equipped with an Ethernet port and the OMICRON Test Universe
software.

CMC 356 Reference Manual
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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 356
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 356
output safety sockets.
Retractable sleeve
↔
Safety socket of, for example,
the CMC 356 test set.
↔
Regular test lead
Non-safety socket
Test lead adapter

Operating the CMC 356
15
3.3 Regular Test Leads for Safety Sockets
Use the regular test leads of 2.0 m/6 ft. length to connect the CMC 356
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 356 test set
or amplifier
to terminal strip
↔
Regular test lead
Terminal adapter

CMC 356 Reference Manual
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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

Operating the CMC 356
17
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.
Detailed instructions for installing the software for the OMICRON Test
Universe can be found in the software manual "The Concept".
This description refers both to the computer and to the CMC 356. It does not
take into consideration any external devices. If the system is driven by
external amplifiers, follow the instructions in section 7.5, "Operation with
External Amplifiers" on page 99.
When setting up the CMC 356, it is most important to make sure that the
ventilation slots remain unobstructed.
Connecting the System Components:
Figure 3-1:
Connecting the CMC 356
to the computer
1. Connect the CMC 356 to the PC with the supplied connecting cable1:
•CMC 356: Connector ETH1 at the rear sinde of the test set
• PC: Ethernet port (labeled “EtherNET”, “LAN” or similar).
For instructions to help you to incorporate network-capable CMC test
sets, such as the CMC 356 into a computer network, please refer to
the manual "Network-based CMC Test Sets". This manual is provided
in PDF format; its name is Network-based test sets.pdf. It is
available on your hard disk at
Test Universe installation folder\Test Universe\Doc\.
1To ensure the required EMC compatibility, we recommended to only use the OMICRON-
supplied connecting cable.
OMICRON-supplied connecting cable

CMC 356 Reference Manual
18
2. Connect the CMC 356 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 356. 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 101).

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 356 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 356 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 356 Reference Manual
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4.1 Block Diagram
Figure 4-1:
Main block diagram of
the CMC 356
1* Note regarding the hardware option ELT-1:
The hardware option ELT-1 enables the measurement of analog signals
using the CMC 356. In the standard configuration (CMC 356 without option
ELT-1), the inputs BINARY/ANALOG INPUT 1 - 10 can only be used as
binary inputs, and DC inputs are not available.
1*
1*
DC
AC
Main Group SELV Group
AUX DC
Internal Supplies
VOLTAGE
CURRENT A CURRENT B
CPU
System Control
(Signal Generator)
PE
Mains
Host
Interface
DC DC
PC
Ext. Ampl.
Ext.
Ampl.
Counter
1,2
Bin. Out
11...14
CMGPS
IRIG-B
34
21
BINARY OUTPUT
LL out
7-12
(optional)
LL out
1-6
ext.
Interf.
U
DC
I
DC
ADC
ANALOG DC INPUTS
Control Control Control Control AUX DC
VOLTAGE OUTPUT
CURRENT OUTPUT A CURRENT OUTPUT B
3 x 0...32A
3 x 0...32A
4 x 0...300V
0...264V
DC
AFE
AFE
AFE
AFE
AFE
10
9
86
5
4
3
21
BINARY/ANALOG INPUT
working isolation