Yokogawa FVX110 Uživatelský manuál Strana 21
- Strana / 164
- Tabulka s obsahem
- ŘEŠENÍ PROBLÉMŮ
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
<2. Handling Cautions>
2-11
IM 01S01C01-01EN
The criterion for such interconnection is that the
voltage (Ui), the current (Ii) and the power (Pi),
which intrinsically safe apparatus can receive,
must be equal or greater than the voltage (Uo),
the current (Io) and the power (Po) which can be
provided by the associated apparatus (supply unit).
Po ≤ Pi, Uo ≤ Ui, Io ≤ Ii
In addition, the maximum unprotected residual
capacitance (Ci) and inductance (Li) of each
apparatus (other than the terminators) connected
to the eldbus line must be equal or less than 5 nF
and 10 µH respectively.
Ci ≤ 5 nF, Li ≤ 10 µH
Supply unit
The supply unit must be certied by a Notied
body as FISCO model and following trapezoidal or
rectangular output characteristic is used.
Uo = 14...17.5 V (I.S. maximum value)
Io based on spark test result or other assessment,
No specication of Lo and Co is required on the
certicate or label.
Cable
The cable used to interconnect the devices needs
to comply with the following parameters:
Loop resistance Rc: 15...150 Ω/km
Inductance per unit length Lc: 0.4...1 mH/km
Capacitance per unit length Cc: 45...200 nF/km
Length of spur cable: max. 60 m (IIC and IIB)
Length of trunk cable: max. 1 km (IIC) or 5 km
(IIB)
Terminators
The terminator must be certied by a Notied body
as FISCO model and at each end of the trunk
cable an approved line terminator with the following
parameters is suitable:
R = 90 . . . 102 Ω
C = 0 . . . 2.2 µF. (0.8...1.2 µF is required in
operation)
The resistor must be infallible according to IEC
60079-11.
Number of Devices
The number of devices (max. 32) possible on a
eldbus link depends on factors such as the power
consumption of each device, the type of cable used,
use of repeaters, etc.
● Entity Model
Non-Hazardous
Locations
Hazardous Locations
F0210.ai
Terminator
Ex i
Field Instruments
(Passive)
Hand-
held-
Terminal
Supply Unit and
Safety Barrier
Terminator
Data
U
U
I
I.S. eldbus system complying with Entity model
I.S. values Power supply-eld device:
Po ≤ Pi, Uo ≤ Ui, Io ≤ Ii
Calculation of max. allowed cable length:
Ccable ≤ Co – ∑Ci – ∑Ci (Terminator)
Lcable ≤ Lo – ∑Li
Number of Devices
The number of devices (max. 32) possible on a
eldbus link depends on factors such as the power
consumption of each device, the type of cable used,
use of repeaters, etc.
b. CENELEC ATEX (KEMA) Flameproof Type
Caution for CENELEC ATEX (KEMA)
ameproof type
Note 1. FVX110 Fieldbus Segment Indicator
with optional code /KF25 for potentially
explosive atmospheres:
• No. KEMA 10ATEX0157
• Applicable Standard:
EN 60079-0:2006, EN 60079-1:2004,
EN 61241-0:2006, EN 61241-1:2004
• Type of Protection and Marking Code:
Ex d IIC T6, Ex tD A21 IP6x T80
• Group: II
• Category: 2G, 2D
• Temperature Class: T6
• Enclosure: IP66 and IP67
• Ambient Temperature for gas-proof:
–50* to 75ºC (T6)
* –15ºC when O-ring material is Fluoro-rubber.
• Maximum Surface Temperature for dust-
proof:
T80ºC (Tamb.: –40* to 75ºC)
* –15ºC when O-ring material is Fluoro-rubber.
- Fieldbus Segment Indicator 1
- Contents 2
- 1. Introduction 8
- 1.2 Warranty 9
- 1.3 ATEX Documentation 10
- 2. Handling Cautions 11
- Protected Instrument 13
- Terminal 15
- 2.8.2 CSA Certication 17
- Location of the mark 22
- 2) Internal grounding 22
- 1) External grounding 22
- 2.8.4 IECEx Certication 23
- 3. Component Names 25
- 4. About Fieldbus 26
- 5. Installation 28
- 5.3 Wiring 29
- 5.4 Grounding 30
- 5.5 Connection of Devices 30
- 5.6 Host Setting 31
- 5.7 Bus Power ON 32
- 6. Conguration 34
- 6.2 Network Denition 35
- 6.3 Denition of Combining 36
- Function Blocks 36
- 6.4 Setting of Tags and 37
- Addresses 37
- 6.5 Communication Setting 37
- 0x1: System/network 38
- 0x1234: Function block 38
- 6.6 Block Setting 39
- 6.6.2 Trend Object 40
- 6.6.3 View Object 40
- <6. Conguration> 41
- 7.3.2 Operating mode 44
- 7.3.1 Function Outline 44
- Quality Sub-status 46
- 7.3.5 Indicator settings 47
- Figure 7.4 Sub Tag settings 48
- (switching displays) 62
- 9. In-Process Operation 64
- 9.3 Device Diagnostic 67
- Simulation Function 67
- 10. Maintenance 69
- Assembly 70
- 11. Device Information 71
- 12. Parameter Lists 74
- 12.2 LCD Transducer Block 77
- 13. General Specications 85
- 13.2 Physical Specications 86
- 13.3 Model and Sufx Codes 86
- 13.5 Optional Specications 88
- 13.6 Dimensions 89
- A1.1 Schematic Diagram of 90
- Signal Characterizer Block 90
- A1.2 Input Section 91
- FA0103.ai 92
- A1.5.1 Input Compensation 95
- A1.5.3 Backward Control 96
- Figure A2.1 Integrator Block 97
- A2.2 Input Process Section 98
- A2.3 Adder 99
- A2.4 Integrator 100
- A2.5 Output Process 101
- IM 01S01C01-01EN 102
- A2.6 Reset 103
- A2.6.2 Reset Timing 104
- A2.6.3 Reset Process 104
- Figure A3.1 IS Block 108
- A3.2 Input Section 110
- A3.2.2 MIN_GOOD Handling 111
- A3.3 Selection 112
- A3.3.2 SELECTION Handling 113
- Figure A3.5 Example (4) 114
- Figure A3.6 Example (5) 115
- Figure A3.7 Example (6) 116
- Figure A3.8 Example (7) 117
- Figure A3.9 Example (8) 118
- A3.4 Output Processing 119
- A3.4.2 OUT Processing 120
- A3.4.3 STATUS_OPTS 121
- FA0311.ai 123
- A4.2 Input Section 125
- A4.2.3 INPUT_OPTS 126
- Inputs and PV 126
- A4.3 ComputationSection 127
- A4.4 OutputSection 127
- AUTO MAN AUTO 128
- BAL_TIME 128
- Appendix 5. PID Block 132
- A5.3 Parameters of PID Block 133
- A5.4 PID Computation Details 136
- A5.5 Control Output 136
- A5.7 Control Action Bypass 137
- A5.8 Feed-forward 137
- A5.9 Block Modes 137
- A5.10 Bumpless Transfer 138
- A5.11 Setpoint Limiters 138
- Fallback (IMan) 139
- A5.15 Manual Fallback 140
- A5.16 Auto Fallback 140
- A5.17 Mode Shedding upon 140
- Computer Failure 140
- A5.18 Alarms 141
- A5.19 Example of Block 141
- Connections 141
- A5.20 View Object for PID 142
- Function Block 142
- (MAO) Block 143
- A6.2 Block Mode 144
- A6.3 Fault State 145
- A6.4 Status Transitions 146
- A6.5 Parameter list display 146
- A7.1 Link Active Scheduler 148
- A7.2 Link Master 148
- A7.3 Transfer of LAS 149
- A7.4 LM Functions 150
- A7.5 LM Parameters 151
- SCHEDULE_LIST_ 152
- CHARACTERISTICS_ 152
- A7.6 FAQs 155
- Field Device 159
- A8.7 Troubleshooting 159
- Software Download 161
- Relating to Software Download 162
- IMPORTANT 162
- (3) DOMAIN_HEADER 163
- Revision Information 164
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