background image

Section 1

1.1

Installation

General

The overall accuracy of measurement and control depends on several variables. Although the
converter has an outstanding performance, proper installation is essential, in order to maximize its
performance.

Among all factors, which may affect converter accuracy, environmental conditions are the most
difficult to control. There are, however, ways of reducing the effects of temperature, humidity and
vibration.

Locating the converter in areas protected from extreme environmental changes can minimize
temperature fluctuation effects.

In warm environments, the converter should be installed to avoid, as much as possible, direct expo-
sure to the sun. Installation close to lines and vessels subjected to high temperatures should also be
avoided.

Use of sunshades or heat shields to protect the converter from external heat sources should be
considered, if necessary.

Humidity is fatal to electronic circuits. In areas subjected to high relative humidity, the O-rings for the
electronics cover must be correctly placed. Removal of the electronics cover in the field should be
reduced to the minimum necessary, since each time it is removed the circuits are exposed to the
humidity. The electronic circuit is protected by a humidity proof coating, but frequent exposures to
humidity may affect the protection provided. It is also important to keep the covers tightened in
place. Every time they are removed, the threads are exposed to corrosion, since painting cannot
protect these parts. Code-approved sealing methods on conduit entering the converter should be
employed.

Mounting

Using the bracket, the mounting may be done in several positions, as shown on Figure 1.3 -
Dimensional Drawing and Mounting Positions.
For better visibility, the digital indicator may be rotated in steps of 90

°

 (See the section Maintenance

Procedures).

Output Wiring

The output is in fact a current link. An external power source is therefore necessary. The 

FI302

controls the current in the loop. (See Figure 1.4 - Output Connections). The three channels have a
common ground for the external power supply.

The output load is limited by the voltage of the external power supply. Please refer to the load graph
to determine the maximum load.

On loss of power the output will be uncertain. If power is maintained, but communication is lost, the
output may be pre-configured to freeze or go to a safe value.

Electric Wiring

Access the wiring block by removing the Electrical Connection Cover. This cover can be locked
closed by the cover locking screw (See Figure 1.1 - Cover Locking). To release the cover, rotate the
locking screw clockwise.

Содержание FI302

Страница 1: ...F I 3 0 2 M E...

Страница 2: ...Germany Tel 49 671 794680 Fax 49 671 7946829 e mail infoservice smar de MEXICO Smar M xico Cerro de las Campanas 3 desp 119 Col San Andr s Atenco Tlalnepantla Edo Del M x C P 54040 Tel 53 78 46 00 al...

Страница 3: ...e a moderately high communication speed was selected and the system was designed to have a minimum of communication overhead Using scheduling the system controls variable sampling algorithm execution...

Страница 4: ...ce Instruction Manual IV WARNING This Manual is compatible with version 3 XX where 3 denote software version and XX software release The indication 3 XX means that this manual is compatible with any r...

Страница 5: ...NUMBER 3 1 CURRENT TRIM 3 2 CARACTERIZATION CURVE 3 7 VIA LOCAL ADJUSTMENT 3 8 DISPLAY TRANSDUCER BLOCK 3 9 DEFINITION OF PARAMETERS AND VALUES 3 10 PROGRAMMING USING LOCAL ADJUSTMENT 3 13 MAINTENCE...

Страница 6: ...FI302 Operation and Maintenance Instruction Manual VI...

Страница 7: ...lectronic circuit is protected by a humidity proof coating but frequent exposures to humidity may affect the protection provided It is also important to keep the covers tightened in place Every time t...

Страница 8: ...ound Terminals For convenience there are three ground terminals one inside the cover and two externals located close to the conduit entries The FI302 uses the 31 25 kbit s voltage mode option for the...

Страница 9: ...locking screw In hazardous zones with intrinsically safe or non incendive requirements the circuit entity parameters and applicable installation procedures must be observed Cable access to wiring conn...

Страница 10: ...ing Other types of cable may be used other than for conformance testing Cables with improved specifications may enable longer trunk length or superior interface immunity Conversely cables with inferio...

Страница 11: ...is tag Connect a configurator to the non initialized FI302 without having any other devices on the line Assign the physical device tag to the FI302 The FI302 is now initialized and can be connected to...

Страница 12: ...FI302 Operation and Maintenance Instruction Manual 1 6...

Страница 13: ...PROM The CPU is the intelligent portion of the converter being responsible for the management and operation of block execution self diagnostics and communication The program is stored in PROM For temp...

Страница 14: ...rom the output section the power to the output section must be isolated Display Controller Receives data from the CPU and drives the Liquid Crystal Display Local Adjustment Two switches that are magne...

Страница 15: ...s on screen The icon indicates that one transducer block has been created and by clicking twice on the icon you can access it The transducer block has an algorithm a set of contained parameters and a...

Страница 16: ...sed If a mismatch is detected a trim can be done Trim can be done in two points LOWER TRIM Is used to trim the output at the lower range UPPER TRIM Is used to trim the output at the upper range These...

Страница 17: ...parameter the trim procedure is initialized Read the current in the multimeter and write that value in parameter FEEDBACK_CAL Write in this parameter until it reads 4 0 mA or the lower value readout o...

Страница 18: ...POINT_HI Always keep in mind that simply by writing in this parameter the trim procedure is initialized Figure 3 5 Calibrating the Cal Point Hi FI302 This parameter ends the calibration procedure The...

Страница 19: ...In order to end the trim procedure choice DISABLE in the parameter CAL_CONTROL Figure 3 7 Closing the Calibration Hi Procedure The value should be entered here This parameter should be set with the ac...

Страница 20: ...nt to choose the unit to be used in parameter XD_SCALE of the Analog Output Block considering that sensor limits at 100 and at 0 should be observed It is also recommendable for every new calibration s...

Страница 21: ...the current conversion routine When CURVE_BYPASS is false No Bypass curve is used Figure 3 9 Enabling the Characterization Curve The characterization curve has 8 points Each point has two coordinates...

Страница 22: ...302 has 3 output transducers and its device leaves SMAR with factory settings The factory setting establishes only the transducers 1 as default for local adjustment In order to configure the others vi...

Страница 23: ...until 20 0 mA or the desired upper values are displayed NOTE Trim mode exit via local adjustment occurs automatically Should the magnetic tool not be used during approximately 16 seconds LIMIT CONDIT...

Страница 24: ...ck to which the parameter belongs Use up to a maximum of 32 characters Index_Relative This is the index related to the parameter to be actuated or viewed 0 1 2 Refer to the Function Blocks Manual to k...

Страница 25: ...Configuration 3 11 Figure 3 13 Parameters for Local Adjustment Configuration Figure 3 14 Parameters for Local Adjustment Configuration...

Страница 26: ...FI302 Operation and Maintenance Instruction Manual 3 12 Figure 3 15 Parameters for Local Adjustment Configuration Figure 3 16 Parameters for Local Adjustment Configuration...

Страница 27: ...Step 1 FI302 This parameter updates the local adjustment programming tree configured on each device The option update should be selected in order to execute the upgrade of local adjustment programmin...

Страница 28: ...irst configuration the option shown on the display is the TAG with its corresponding mnemonic configured by the SYSCON Otherwise the option shown on the display will be the one configured in the prior...

Страница 29: ...r current calibration points An arrow pointing upward increments the current In order to decrement the upper value place the magnetic tool in orifice Z to shift the arrow to the downward position an t...

Страница 30: ...FI302 Operation and Maintenance Instruction Manual 3 16...

Страница 31: ...be between 9 and 32 VDC Electronics Circuit Failure Check circuit boards for defect by replacing them with spare ones NO COMMUNICATION Network Connection Check network connections devices power suppl...

Страница 32: ...used to this efect On the equipment withdraw the nut that fixes the identification tag on the top of the housing so that access is gained to the S and Z holes The operations to follow are 1 Switch off...

Страница 33: ...Put main board 5 into the housing ensuring all inter connecting pins are connected Put display 4 into the housing observing the four mounting positions should point in the direction desired as UP Anc...

Страница 34: ...TOR 4 214 0108 TERMINAL INSULATOR 12 314 0123 MAIN AND OUTPUT CIRCUIT BOARD ASSEMBLY 5 AND 7 324 0140 0 RINGS NOTE 2 Cover BUNA N 2 204 0122 TERMINAL HOLDING SCREW Housing in Aluminum 14 304 0119 Hous...

Страница 35: ...ludes terminal holder insulator bolts cover lock grounding and terminal holder insulator and identification plate without certification 2 0 Rings are packaged in packs of 12 units 3 Including U clamp...

Страница 36: ...FI302 Operation and Maintenance Instruction Manual 4 6...

Страница 37: ...supply from 7 8 KHz 39 KHz should be greater or equal to 400 Ohm Display Optional 4 digit LCD Display Hazardous Location Certification Explosion proof weather proof and intrinsically safe CENELEC and...

Страница 38: ...or fixed on a wall or panel Weight Without display and mounting bracket 0 80 kg Add for digital display 0 13 kg Add for mounting bracket 0 60 kg MODEL FI302 FIELDBUS TO CURRENT CONVERTER CODE Local I...

Страница 39: ...Technical Characteristics 5 3...

Страница 40: ...FI302 Operation and Maintenance Instruction Manual 5 4...

Отзывы: