Interface INF1 Instruction Manual

Installation User Manual
User Manual

KEY TO SYMBOLS
Below are the symbols used in this manual to draw the reader's attention:
Warning! Risk of electrocution.
Warning! This operation must be performed by skilled workers.
Further information.
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TABLE OF CONTENTS
USER WARNINGS
RECOMMENDATIONS FOR INSTRUMENT INSTALLATION
RECOMMENDATIONS FOR LOAD CELL INSTALLATION
LOAD CELL INPUT TEST (QUICK ACCESS)
LOAD CELL TESTING
MAIN INSTRUMENT SPECIFICATIONS
TECHNICAL SPECIFICATIONS
ELECTRICAL CONNECTIONS
BASIC INFORMATION
WIRING DIAGRAM
INF1 - INF485
INF1 (other models)
LED AND KEYS FUNCTIONS
MENU MAP
SETPOINT
SYSTEM PARAMETERS
INSTRUMENT COMMISSIONING
PROGRAMMING OF SYSTEM PARAMETERS
THEORETICAL CALIBRATION
MAXIMUM CAPACITY
TARE WEIGHT ZERO SETTING
ZERO VALUE MANUAL ENTRY
REAL CALIBRATION (WITH SAMPLE WEIGHTS)
FILTER ON THE WEIGHT
ANTI PEAK
ZERO PARAMETERS
RESETTABLE WEIGHT SETTING FOR SMALL WEIGHT CHANGES
AUTOMATIC ZERO SETTING AT POWER-ON
ZERO TRACKING
SETTING UNITS OF MEASURE
DISPLAY COEFFICIENT
INPUT AND OUTPUT CONFIGURATION
SEMI-AUTOMATIC TARE (NET/GROSS)
PRESET TARE (SUBTRACTIVE TARE DEVICE)
SEMI-AUTOMATIC ZERO (ZERO-SETTING FOR SMALL VARIATIONS)
PEAK
ANALOG OUTPUT
SERIAL COMMUNICATION SETTING
RS485 SERIAL COMMUNICATION
DIRECT CONNECTION BETWEEN RS485 AND RS232 WITHOUT CONVERTER
TEST
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SETPOINT PROGRAMMING
ALARMS
COMMUNICATION PROTOCOLS
CONTINUOUS FAST WEIGHT TRANSMISSION PROTOCOL
ASCII BIDIRECTIONAL PROTOCOL
SETPOINT PROGRAMMING
SETPOINT STORAGE IN EEPROM MEMORY
READING WEIGHT, SETPOINT AND PEAK (IF PRESENT) FROM PC
SEMI-AUTOMATIC ZERO (ZERO-SETTING FOR SMALL VARIATIONS)
SWITCHING FROM GROSS TO NET WEIGHT
SWITCHING FROM NET TO GROSS WEIGHT
READING OF DECIMALS AND DIVISION NUMBER
TARE ZERO-SETTING
REAL CALIBRATION (WITH SAMPLE WEIGHT)
KEYPAD LOCK (BLOCK THE ACCESS TO THE INSTRUMENT)
KEYPAD UNLOCK
DISPLAY AND KEYPAD LOCK
CHECK-SUM CALCULATION
MODBUS-RTU PROTOCOL
FUNCTIONS SUPPORTED IN MODBUS
COMMUNICATION ERROR MANAGEMENT
LIST OF AVAILABLE REGISTERS
POSSIBLE COMMANDS TO BE SENT TO COMMAND REGISTER (40006)
ANALOG OUTPUT SETTING
REAL CALIBRATION COMMANDS (WITH SAMPLE WEIGHTS)
COMMUNICATION EXAMPLES
CANOPEN
TECHNICAL SPECIFICATIONS AND CONNECTIONS
INSTRUMENT SETUP
PC/PLC SETUP
POSSIBLE COMMANDS TO BE SENT TO THE COMMAND REGISTER
REAL CALIBRATION COMMANDS (WITH SAMPLE WEIGHTS)
DEVICENET
TECHNICAL SPECIFICATIONS AND CONNECTIONS
INSTRUMENT SETUP
PC/PLC SETUP
POSSIBLE COMMANDS TO BE SENT TO THE COMMAND REGISTER
REAL CALIBRATION COMMANDS (WITH SAMPLE WEIGHTS)
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CC-LINK
TECHNICAL SPECIFICATIONS AND CONNECTIONS
INSTRUMENT SETUP
PC/PLC SETUP
POSSIBLE COMMANDS TO BE SENT TO THE COMMAND REGISTER
REAL CALIBRATION COMMANDS (WITH SAMPLE WEIGHTS)
ETHERNET TCP/IP
TECHNICAL SPECIFICATIONS
INSTRUMENT SETUP
PC SETUP
DIAGNOSTIC
WEBSITE
ETHERCAT
TECHNICAL SPECIFICATIONS
PC/PLC SETUP
POSSIBLE COMMANDS TO BE SENT TO THE COMMAND REGISTER
REAL CALIBRATION COMMANDS (WITH SAMPLE WEIGHTS)
ETHERNET/IP
TECHNICAL SPECIFICATIONS
INSTRUMENT SETUP
PC/PLC SETUP
POSSIBLE COMMANDS TO BE SENT TO THE COMMAND REGISTER
REAL CALIBRATION COMMANDS (WITH SAMPLE WEIGHTS)
MODBUS/TCP
TECHNICAL SPECIFICATIONS
PC/PLC SETUP
IP ADDRESS SETTING
POWERLINK
TECHNICAL SPECIFICATIONS
INSTRUMENT SETUP
PC/PLC SETUP
POSSIBLE COMMANDS TO BE SENT TO THE COMMAND REGISTER
REAL CALIBRATION COMMANDS (WITH SAMPLE WEIGHTS)
PROFIBUS-DP
TECHNICAL SPECIFICATIONS
INSTRUMENT SETUP
PC/PLC SETUP
POSSIBLE COMMANDS TO BE SENT TO THE COMMAND REGISTER
REAL CALIBRATION COMMANDS (WITH SAMPLE WEIGHTS)
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PROFINET-IO
TECHNICAL SPECIFICATIONS
INSTRUMENT SETUP
PC/PLC SETUP
POSSIBLE COMMANDS TO BE SENT TO THE COMMAND REGISTER
REAL CALIBRATION COMMANDS (WITH SAMPLE WEIGHTS)
SERCOSIII
MENU LOCKING
MENU UNLOCKING
TEMPORARY MENU UNLOCKING
DATA DELETION AND PROGRAM SELECTION
KEYPAD OR DISPLAY LOCKING
TECHNICAL SPECIFICATIONS
INSTRUMENT SETUP
PC/PLC SETUP
POSSIBLE COMMANDS TO BE SENT TO THE COMMAND REGISTER
REAL CALIBRATION COMMANDS (WITH SAMPLE WEIGHTS)
RESERVED FOR THE INSTALLER
WARRANTY
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USER WARNINGS
RECOMMENDATIONS FOR THE PROPER USE OF WEIGHING INSTRUMENT
-Keep away from heat sources and direct sunlight
-Do not wash with water jets
-Do not dip in water
-Do not spill liquid on the instrument
-Do not use solvents to clean the instrument
-Do not install in areas subject to explosion hazard
-If the working temperature reaches the permitted limits, it is advisable to distance the
instrument to ensure adequate air flow and avoid malfunctions (Example: sudden
shutdowns or disconnections)
The terminals to be connected to ground as indicated in the instrument's wiring
diagram, must have the same potential as the weighed structure (same earthing pit or
earthing system). If you are unable to ensure this condition, connect a grounding
wire from the terminals of the instrument (including the terminal - SUPPLY) to the
weighed structure.
The cell cable should be individually led to its panel input should not share a conduit
with other cables, connect it directly to the instrument terminal strip without breaking its
route with support terminal strips. Use "RC" filters on the instrument-driven solenoid
valve and remote control switch coils. Avoid inverters in the instrument panel. If
inevitable, use special filters for the inverters and separate them with sheet metal
partitions. The panel installer must provide electric protections for the instruments (fuses,
door lock switch etc.). It is advisable to leave the equipment always switched on to prevent
the formation of condensation.
MAXIMUM CABLE LENGTHS
-RS485: 1000 meters with AWG24, shielded and twisted cables
-Analog current output: up to 500 meters with 0.5 mm2 cable
-Analog voltage output: up to 300 meters with 0.5 mm2 cable
INSTALLING LOAD CELLS: the load cells must be placed on rigid, stable in-line
structures. It is important to use the mounting modules for load cells to compensate for
misalignment of the support surfaces.
CONNECTING SEVERAL CELLS IN PARALLEL: connect several cells in parallel by
using a watertight junction box and terminal box if necessary. The cell connection
extension cables must be shielded, led individually into their piping or conduit and laid
as far as possible from the power cables (in case of 4-wire connections, use cables with
4x1 mm2 minimum cross-section).
RECOMMENDATIONS FOR INSTRUMENT INSTALLATION
RECOMMENDATIONS FOR LOAD CELL INSTALLATION
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PROTECTION OF THE CELL CABLE: use water-proof sheaths and joints in order to
protect the cables of the cells.
MECHANICAL RESTRAINTS (pipes, etc.): when pipes are present, we recommend
the use of hoses and flexible couplings with open mouthpieces and rubber protection.
In case of hard pipes, place the pipe support or anchor bracket as far as possible from the
weighed structure (at a distance at least 40 times the diameter of the pipe).
WELDING: avoid welding with the load cells already installed. If this cannot be
avoided, place the welder ground clamp close to the required welding point to prevent
sending current through the load cell body.
WINDY CONDITIONS -KNOCKS- VIBRATIONS: the use of weigh modules is
strongly recommended for all load cells to compensate for misalignment of the support
surfaces. The system designer must ensure that the plant is protected against lateral
shifting and tipping relating to: shocks and vibration, windy conditions, seismic activity
in the installation setting and stability of the support structure.
GROUNDING THE WEIGHED STRUCTURE: by means of a copper wire with suitable
cross-section, connect the cell upper support plate with the lower support plate, then
connect all the lower plates to a single grounding system. Electrostatic charges
accumulated because of the product rubbing against the pipes and the weighed container
walls are discharged to the ground without going through or damaging the load cells.
Failure to implement a proper grounding system may not affect the operation of the
weighing system, however, this does not rule out the possibility that the cells and
connected instrument may be damaged. It is not recommended to achieve grounding
continuity through metal parts contained in the weighed structure.
FAILURE TO FOLLOW THE INSTALLATION RECOMMENDATIONS WILL BE
CONSIDERED A MISUSE OF THE EQUIPMENT
OK OK
NO NO
NO
OK
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From the weight display, press for 3 seconds: the display shows the response signal of the
load cells expressed in mV with four decimals. Example: a load cell with 2.000 mV/V
sensitivity provides a response signal between 0 and 10 mV.
-Turn off the instrument.
-Disconnect the load cells from the instrument and make sure that there is no
moisture in the load cell junction box caused by condensation or water infiltration. If
so, drain the system or replace it if necessary.
-The value between the positive signal wire and the negative signal wire must be equal
or similar to the one indicated in the load cell data sheet (output resistance).
-The value between the positive excitation wire and the negative excitation wire must be
equal or similar to the one indicated in the load cell data sheet (input resistance).
-The insulation value between the shield and any other cell wire and between any other
cell wire and the body of the load cell must be higher than 20 Mohm.
-Turn on the instrument.
-Remove the load cell to be tested from beneath the container or lift the container
support.
-Make sure that the two excitation wires from the load cell that are connected to
the instrument (or amplifier) read 5 VDC ±3%.
-Measure the response signal between the positive and the negative signal wires by
directly connecting them to the multimeter, and make sure that it reads between 0 and
0.5 mV.
-Apply load to the load cell and make sure that there is a signal increment.
IF ONE OF THE ABOVE CONDITIONS IS NOT MET, PLEASE CONTACT
TECHNICAL SUPPORT.
3 s
LOAD CELL INPUT TEST (QUICK ACCESS)
LOAD CELL TESTING
Load cell resistance measurement (use a digital multimeter):
Load cell voltage measurement (use a digital multimeter):
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The INF1 is a weight transmitter with a 6-wire load cell input, suitable for assembly on
back panel fitted Omega/DIN rail.
Dimensions: 25x115x120 mm. Six-digit semi-alphanumeric display, 8 mm height, 7
segment. Four-key keyboard.
RS485 serial port for connection to: PC/PLC up to 32 instruments (max 99 with line
repeaters) by ASCII or ModBus R.T.U. protocol, remote display.
Optional: integrated CANopen, DeviceNet, CC-Link, PROFIBUS DP, Modbus/TCP,
Ethernet TCP/IP, Ethernet/IP, PROFINET IO, EtherCAT, POWERLINK, SERCOS III
output.
Optoisolated 16 bit analog output (tension or current).
MAIN INSTRUMENT SPECIFICATIONS
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