User`s Manual: Series 430I Model 430I AC-Powered Three
Contents
1. CALIBRATION All units are calibrated and checked for proper performance at the factory before they are shipped The calibration example below is provided for reference Isolator Adjustment Procedure Connect the isolator as shown in the recommended calibration connections of the connection diagram Drawing 4501 365 The input current source must be adjustable over the entire input range of the unit and settable to an accuracy of 0 05 or better for proper results Series 4301 User s Manual Process Current Three Way Isolator The Zero and Span adjustments are accessible at the front panel of the isolator see Drawing 4501 365 for location The Zero and Span trim provided are not wide range adjustable and are suitable for fine tuning only The screwdriver blade used to adjust the potentiometers should not be more than 0 1 inch 2 54mm wide Isolator Calibration Example MODEL 430I C1 Y 1 DIN NCR Input 4 to 20mA DC Output 4 to 20mA DC 1 Set the input source to 4 000mA Adjust the Zero Z pot until the output reads 4 000mA DC NOTE If you have trouble reaching zero you may have to first set the span near 16 000 2 Set the input source to 20 000mA Adjust the Span S pot until the output reads 20 000mA DC 3 Repeat steps 1 and 2 until the readings converge 4 Check the midpoint by setting the input source to 12 000mA The output should read 12 000mA 0 016mA DC The instrument is now calibrated GENERAL2. o EI p poo oc 094p es oM CURRENT CONTROL OUTPUT CURRENT AMPLIFIER LIMITER POWER CURRENT LIMITER AC H w acao AC LO c crouno NOTE AC GROUND TERMINAL IS NOT CONNECTED INTERNALLY i SERIES 4301 ISOLATOR CONNECTIONS 2 4se to 1 4501 3685 a eS e De ee ee ee eh NOTE PLASTIC ENCLOSURE SNAPS TOGETHER AT SEAMS 1 57 0 58 40 0 14 75 2 1 1 1 i WIRE INSERTION CLAMPS 12 PLACES i 1 3 G RAIL DIN MOUNTING RAIL OIN MOUNTING SHOWN THIS SIDE SHOWN THIS SIDE DIN EN 50035 32mm DIN EN 50022 35mm G RAIL DIN MOUNTING SHOWN HERE DIN EN 50035 32mm RAIL DIN MOUNTING 1 SHOWN HERE wo DIN EN 50022 35mm 79 0 4 1 55 1 55 39 4 39 4 BL SCREWDRIVER SLOT FOR REMOVAL FROM RAIL NOTE ADJACENT UNITS CAN BE MOUNTED 5 ON 1 6 INCH 40mm CENTERS ENCLOSURE DIMENSIONS FOR DIN RAIL MOUNTING TT LI I I 4 5 8 ee on Joe NOTE ALL DIMENSIONS ARE IN INCHES MILLIMETERS 4301 HOUSING DIN RAIL MOUNT 43ei 1o 1 24501 366 A B ree eda Oe Ne a Pl ee Ee gent E 2 A
3. This error includes the combined effects of isolator repeatability hysteresis terminal point linearity and adjustment resolution Does not include sensor error Ambient Temperature Range 139F to 1850F 250 to 850C Ambient Temperature Effect Less than 0 003 of output span change per OF 0 005 per or 50ppm C over the ambient temperature range for reference test conditions This specification includes the combined effects of zero and span over temperature Bandwidth 3dB at 50Hz typical with 500 ohm load Response Time For a step input the output reaches 9896 of output span in 25ms typical with 500 ohm load Noise Rejection Normal Mode 6dB at 60 Hz typical with 500 ohm load RFI Resistance Less than 0 5 of output span with RFI field strengths of up to 10V meter at frequencies of 27 151 and 467 MHz EMI Resistance Less than 0 25 of output span effect with switching solenoids or commutator motors Surge Withstand Capability SWC Input Output terminations rated per ANSI IEEE C37 90 1978 Unit is tested to a standardized test waveform that is representative of surges high frequency transient electrical interference observed in actual installations Construction Printed Circuit Boards Military grade FR 4 epoxy glass circuit board Terminals Compression type wire size 14 AWG maximum Case Self extinguishing NYLON Type 6 6 polyamide thermoplastic UL94V 2 color black General Pur
4. Acromag 4M User s Manual Series 4301 Model 4301 AC Powered Three Way Isolator Table of Contents Page Ata ua addin adh 2 Beo get 2 10 T euet elite iS Falla 5 MESES TAREAS TAG SURE TION UNE 6 General Maintenarnce eu eua hne eap ena habe FEE npe ke ge EnREbe 7 List of Drawings Electrical Connections 450 T 9DB er ro cies nt ertet rro enata ox ERES 8 Dimensions DIN Rail Mounting No 4501 366 9 It is very important for the user to consider the possible adverse effects of power wiring component sensor or software failures in designing any type of control or monitoring system This is especially important where economic property loss or human life is involved It is important that the user employ satisfactory overall system design It is agreed between the Buyer and Acromag that this is the Buyer s responsibility ACROMAG INCORPORATED Tel 248 624 1541 30765 South Wixom Road FAX 248 624 9234 P O BOX 437 Wixom MI 48393 7037 USA Copyright 1993 Acromag Inc Printed in USA Data and specifications subject to change without notice 8500 491 A93J000 Series 4301 User s Manual Process C
5. MAINTENANCE The isolator contains solid state components and requires no maintenance except for periodic cleaning and calibration verification When a failure is suspected a convenient method for identifying a faulty isolator is to exchange it with a known good unit It is highly recommended that a non functioning isolator be returned to Acromag for repair since Acromag makes use of tested and burned in parts and in some cases parts that have been selected for characteristics beyond that specified by the manufacturer Further Acromag has automated test equipment that thoroughly checks the performance of each isolator DU Gece eee CO ee ID I ee ee t 1 option 20Pmow 2300 AC id Pv ean iamma NOTE AC GROUND TERMINAL IS NOT CONNECTED INTERNALLY CURRENT BALANCE 2 ZERO SPAN POWER ADJUST R SUPPLY S output e al 8g f OUTPUT _ FILTERING R ur r A 5 DIGIT ISOLATOR ZERO AND DVM SPAN ADJUSTMENTS TWO WIRE ad p 1 INPUT TRANSMITTER n i a x N ADJUSTABLE 250 OHMS z PRECISION 7 0 1 JS fo ag TRANSMITER CURRENT SOURCE er 4301 af RO B 5 ee MEN TYPICAL TWO WIRE TRANSMITTER CONNECTIONS TYPICAL FOUR WIRE TRANSMITTER CONNECTIONS RECOMMENDED CALIBRATION CONNECTIONS SERIES 4301 THREE WAY ISOLATOR ELECTRICAL CONNECTIONS tee Be ee Oke ee 7 2xprE ux
6. component for a modular solution to varied field applications Unlike the Series 2701 which is a two wire loop powered isolator or the Series 3401 which is a DC powered input isolator the Series 4301 is an AC powered three way isolator That is Series 4301 isolators provide three way isolation between the input output and power circuits For equivalent DC powered isolator applications see the Acromag Series 3301 The modular approach of this design and companion Acromag flat pack modules allows additional transmitters input modules isolators and alarms to be easily integrated as required See Drawing 4501 365 for a simplified Series 4301 schematic Series 4301 User s Manual Process Current Three Way Isolator Input wiring is inserted in the bottom of the unit while output and power wiring is inserted at the top of the unit Screws to secure the wiring are located on the front panel Connectors are screw clamp type and accept wire size up to 14 AWG Key 4301 Features Low Input Burden less than 1 5V 0 to 1050 ohm Load Range Wide Ambient Temperature Range Highly Accurate and Stable 1 6 Inch Wide DIN Mounted Package No Load Trimming Required AC Powered 115VAC or 230VAC Current Limiting Included True Galvanic Transformer Three Way Isolation SPECIFICATIONS Function This AC powered isolator accepts a 4 to 20mA DC input signal provides three way isolation between the input output and power circuits and deliv
7. ed Units can be mounted side by side on 1 6 inch centers if required T Rail 35mm Type EN50022 To attach an isolator to this style of DIN rail angle the top of the unit towards the rail and locate the top groove of the adapter over the upper lip of the rail Firmly push the unit towards the rail until it snaps solidly into place To remove an isolator insert a screwdriver into the lower arm of the connector and pull downward while applying outward pressure to the bottom of the unit G Rail 32mm Type EN50035 To attach an isolator to this style of DIN rail angle the unit so that the upper groove of the adapter hooks under the top lip of the rail Firmly push the unit towards the rail until it snaps solidly into place To remove an isolator pull the lower part of the unit outward until it releases from the rail and lift the unit from rail Series 4301 User s Manual Process Current Three Way Isolator Electrical Connections The wire size used to connect the unit to the control system is not critical All terminal strips can accommodate wire from 14 26 AWG Strip back the insulation 1 4 inch on each lead before installing it into the terminal block Input wiring may be either shielded or unshielded twisted pair Output wires should be twisted pair Since common mode voltages can exist on signal wiring adequate wire insulation should be used and proper wiring practices followed It is recommended that output power and signal wirin
8. ers a 4 to 20mA DC output signal for loads up to 1050 ohms Output current limiting is included Zero and Span trim adjustments utilize 15 turn potentiometers accessible from the front of the unit The isolator is DIN rail mounted See the Series 3301 for an equivalent DC powered isolator MODEL SERIES 430l Color coded with a white label INPUT C1 4 TO 20mA DC with an input drop less than 1 5V at full scale IMPORTANT Input current must not exceed 100mA or damage to the unit may occur Isolation Three way isolation is provided between input output and power circuits for common mode voltages up to 250V AC or 354V DC off ground on a continuous basis will withstand 1500V AC dielectric strength test for one minute without breakdown This complies with test requirements outlined in ANSI ISA S82 01 1988 for the voltage rating specified OUTPUT Y 4 to 20mA DC R load 0 to 1050 ohms Output Limiting Output current is limited to less than 28mA nominal Output Ripple Less than 0 1 of the maximum output span POWER 1 115V AC 10 50 to 60Hz 0 040A Maximum 2 230V AC 10 50 to 60Hz 0 020A Maximum Power Supply Effect Less than 0 01 of output span for rated supply variations Series 4301 User s Manual Process Current Three Way Isolator Reference Test Conditions Input Output current 4 to 20mA output load 250 ohms 779F 250C ambient 115V AC supply Accuracy Better than 0 1 of output span
9. g be separated from each other for safety as well as for low noise pickup 1 Power Refer to Drawing 4501 365 for power connections The label on the unit specifies the AC power requirements Connect AC power as shown in the connection diagram Drawing 4501 365 Use suitable wire per applicable codes For 115V AC units connect the AC HOT power lead to the L1 terminal and the AC NEUTRAL power lead to the terminal marked W For 230V AC units connect the AC L1 power lead to the L1 terminal and AC L2 power lead to the terminal marked L2 Connect the AC GROUND lead to the G terminal The AC Ground G terminal is not connected internally 2 Grounding The isolator housing is plastic and does not require an earth ground connection If the alarm is mounted in a metal housing a ground wire connection is required Connect the ground terminal of the metal housing Green Screw to a suitable earth ground using appropriate wire per applicable codes 3 Output Connect output per connection diagram refer to Drawing 4501 365 Load range is 0 to 1050 ohms Output current is limited to less than 28mA 4 Input Input is 4 to 20mA DC Connect input per connection diagram observe proper polarity Do not allow the input current to exceed 100mA or damage to the unit may occur NOTE The input circuit is electrically isolated from the output and power circuits allowing the input to operate up to 250V AC or 354V DC off ground on a continuous basis
10. pose NEMA Type 1 enclosure Printed Circuit Board Coating Fungus resistant acrylic conformal coat Mounting Position Position insensitive MOUNTING DIN General Purpose Housing DIN Rail Mount G amp T rails G Rail 32mm Type EN50035 T Rail 35mm Type EN50022 Refer to Drawing 4501 366 for outline and clearance dimensions Shipping Weight 1 pound 0 45Kg packed Series 4301 User s Manual Process Current Three Way Isolator CERTIFICATION Consult the factory for current information on the availability of agency e g Canadian Standards Association Factory Mutual etc approvals NCR No Certification Required INSTALLATION The isolator is packaged in a general purpose type of enclosure Use an auxiliary enclosure to protect against unfavorable environments and locations Maximum operating ambient temperatures should be within 13 to 1850F 25 to 85 C for satisfactory performance If the unit has been calibrated it is ready for installation Connect as shown in the connection diagram of Drawing 4501 365 To verify calibration refer to the CALIBRATION section Mounting Mount isolator assembly refer to Drawing 4501 366 for DIN rail mounting and clearance dimensions DIN Rail Mounting Using suitable fastening hardware secure the DIN rail to the designated mounting surface A isolator can be mounted to either the T or G Rail Installation of the isolator to the rail depends on the type of DIN rail us
11. urrent Three Way Isolator INSTRUCTIONS SERIES 4301 Process Current Three way Isolator AC Powered INTRODUCTION These instructions cover the model types listed in Table 1 below Supplementary sheets are attached for units with special options or features Table 1 A Model Number Format 430l Input Output Power Mtg Certification B Typical Model Number 430I C1 Y 1 DIN NCR 4301 DIN NCR Agency Approval 2 Notes Table 1 1 All units are factory calibrated for 4 to 20mA DC input and 4 to 20mA DC output no C suffix needed 2 Consult the factory for current information on agency e g Canadian Standards Association etc approvals DESCRIPTION The Series 4301 is an AC powered DIN rail mounted process current isolator which accepts a 4 to 20mA DC input signal provides three way isolation between the input output and power circuits and delivers a 4 to 20mA DC output signal for loads up to 1050 ohms This isolator operates from 115VAC or 230V AC power and has a low input burden less than 1 5V Zero and span trim adjustments are independent of the load The isolator is RFI and EMI protected and operates over a wide temperature range of 250C 85 9C with excellent temperature coefficients which minimize effects from the harsh plant environment The Series 4301 isolator is another member of the Acromag flat pack DIN rail mounted instrument family It provides another functional
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