Siemens milltronics MFA 4P Instruction Manual
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Siemens milltronics MFA 4P Instruction Manual

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Instruction Manual May 2008
milltronics
MFA 4P

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  • Page 1 Instruction Manual May 2008 milltronics MFA 4P...
  • Page 2 The user is responsible for all changes and repairs made to the device by the user or the user’s agent. • All new components are to be provided by Siemens Milltronics Process Instruments Inc. • Restrict repair to faulty components only.

  • Page 3: Table Of Contents

    Table of Contents Milltronics MFA 4p ......................1 Safety Notes .............................1 The Manual ...............................1 Specifications ........................2 Installation ........................... 4 Milltronics MFA 4p ........................4 Probe ..............................4 Wiring ...............................4 Dimensions ...............................5 MFA 4p .............................5 Layout .................................7 Interconnection ........................8 MSP-1, 3, or 9 Probe with RMA (remote mounted pre-amplifier) ..........8 MSP-12 Probe with IMA (internally mounted pre-amplifier) ............8...
  • Page 4 Belt Conveyors ............................24 Screw Conveyors ...........................24 Non-Ferrous Window .........................25 Bucket Elevator ............................25 Rotating Shaft of Rotary Feeder ......................26 Drive Sprocket on Rotary Feeder ......................26 Screw Conveyor Flights ........................27 End Bearing on Screw Conveyor ......................27 Troubleshooting ........................28 Maintenance ........................29...

  • Page 5: Milltronics Mfa 4P

    The Manual This instruction manual covers the installation, operation and maintenance of the Milltronics MFA 4p. It is essential that this manual be referred to for proper installation and operation of your unit. Adhering to the installation and operating procedures will insure a quick, trouble free installation and allow for the maximum accuracy and reliability of your motion sensing alarm unit and probes.

  • Page 6: Specifications

    Specifications Safety The Milltronics MFA 4p (Motion Failure Alarm) is to be used only in the manner Note: outlined in this manual, otherwise protection provided by the equipment may be impaired. Power • 100/115/200/ 230 V AC ±15%, 50/60 Hz, 15 VA Output •...
  • Page 7 Weight • polycarbonate enclosure: 1.5 kg (3.3 lb.) • mild steel or stainless steel enclosure: 4.3 kg (9.5 lbs.) Approvals • CE, CSA , FM (C/US) • EMC performance available on request Environmental • location: Indoor/outdoor • altitude: 2000 m max. •...

  • Page 8: Installation

    Installation Milltronics MFA 4p The MFA 4p (and RMA if applicable) must be mounted in a non-hazardous area that is clean, dry, vibration-free, within the ambient temperature range, and non-corrosive to the electronics or its enclosure. The door should be accessible for viewing and to allow calibration of the MFA 4p.

  • Page 9: Dimensions

    Dimensions MFA 4p Type 4X / NEMA 4X / IP65 Polycarbonate Enclosure 160 mm (6.325") 6 mm 15mm 82 mm 131 mm (0.25") (0.59") (3.225") (5.138") 240 mm (9.455") 228 mm (8.975") lid screws mounting holes 4.3 mm (0.170") dia. 4 places Suitable location for conduit entrance Notes: •...
  • Page 10 Type 4 / NEMA 4 / IP65 Painted Steel Enclosure & Type 4X / NEMA 4X / IP65 Stainless Steel Enclosure 203 mm (8.0”) 19 mm (0.75”) 152 mm (6.0”) 273 mm 254 mm (10.75”) (10.0”) 178 mm 19 mm (7.0”) (0.75”) ∅...

  • Page 11: Layout

    Layout MFA 4p Circuit Board START DELAY PULSES PER MINUTE X100 SECONDS D25 D23 D21 D24 START DELAY UNDERSPEED OVERSPEED Q7 Q8 230V 200V LED1 Q3 Q2 Q11 Q5 100V 115V LED2 L2/N PROBE INPUT RELAYS SHOWN IN DE-ENERGIZED POSITION 250 V 8 AMP 7ML19985FM01...

  • Page 12: Interconnection

    Interconnection MSP-1, 3, or 9 Probe with RMA (remote mounted pre-amplifier) MFA 4p SHIELD Maximum cable length from probe to RMA is 30 m / 100 ft of shielded cable, 18 ga. wire. See table on page 9 for cable lengths from RMA to main group. MSP-12 Probe with IMA (internally mounted pre- amplifier) MFA 4p...

  • Page 13: Xpp-5 With Ima (Internally Mounted Pre-Amplifier)

    XPP-5 with IMA (internally mounted pre-amplifier) MFA 4p XPP-5 cable must be run in dedicated, approved metal conduit, boxes and fittings and to procedures in accordance with all governing regulations. See table below for lengths from probe at MFA 4p. Refer to Interconnection Diagram for the XPP-5 (drawing number 23650131) on Note: page 21...

  • Page 14: Connection To Power

    Connection to power: L2/N PROBE INPUT RELAYS SHOWN IN DE-ENERGIZED POSITION 250 V 8 AMP • Terminal 10 must be connected to reliable ground. • The equipment must be protected by a 15A fuse or circuit breaker in the building installation.

  • Page 15: Wiring

    Wiring MFA 4p Wiring for Automatic Start Delay 115/230V AC 50/60 HZ START STOP TB-1 CONTACTOR SEE NOTE 3 TB-1 MFA 4p MFA 4p SEE NOTE 2 STOP START HOLD UNTIL UP TO SPEED SEE NOTE 3 CONTACTOR TB-1 MFA 4p TB-1 MFA 4p Notes:...

  • Page 16: Operating Principles

    Operating Principles MFA 4p Milltronics MFA 4p is a highly sensitive, single setpoint motion sensor alarm unit, used with MSP and XPP probes. The probe detects an increase or decrease in the speed of rotating, reciprocating, or conveying equipment and sends the information to the MFA 4p.

  • Page 17: Pre-Amplifier (Ima And Rma)

    The resultant line indicates the threshold tolerance of the accompanying MFA 4p electronics. For example, in FIG. A, a 100 mm (4") gap requires a minimum velocity of about 10 m / minute (35 ft / minute): with a velocity of 0.61 m / minute (2 ft / minute), a maximum gap of 31 mm (1.25") is possible.

  • Page 18: Calibration

    Although two pulses within range are required to energize the relays, as long as the frequency of the incoming pulses exceeds the setpoint frequency (or is less than that of the setpoint in the case of overspeed detection), the MFA 4p keeps the alarm relays energized.

  • Page 19: Overspeed

    If no response is obtained when you set the ppm potentiometer to 3 (below this stability suffers), reset potentiometer fully CW, set switch SW2 to X 10 and then X 1 if required, and repeat step 4. When Relay LED 2 goes on, indicating the incoming pulse rate, turn potentiometer CCW slightly past this point to obtain an operating setpoint that allows for normal fluctuations due to load and voltage variations.

  • Page 20: Signal Generator Interface

    Signal Generator Interface The following circuit may be used for calibrating or for troubleshooting the MFA 4p. to MFA 4p 470 to 620 ohm 2N4401 10K ohm 1/4 W signal generator Circuit substitutes operating probe and pre-amp. Set signal generator for: 6 V p-p sine 6V p-p square 3V p square...

  • Page 21: Probes

    Probes Mini Sensing Probe MSP-1 1" UNF 1/2" NPT or PG16, TAPPED BOTH SIDES 3/4" NPT 102 mm (4”) 8 mm ø (0.312”) 4 HOLES • CPVC body comes with 2 CPVC locknuts • 180 cm (6 ft.) of Belden 8760 supplied potted in probe •...

  • Page 22: Stainless Steel Probe Msp-9

    Stainless Steel Probe MSP-9 22 mm ø (0.875”) 86 mm ø 2 PLACES (3.375”) GASKET CLAMPS 4 PLACES 111 mm (4.375”) CAP c/w 22 mm ø HOLE (0.875”) 8 mm ø (0.312”) 4 PLACES Mounting Details 6 mm (0.25") diameter four holes equally spaced on a 114 mm (4.5") BCD 102mm (4”)

  • Page 23: Standard Probe Msp-12

    Standard Probe MSP-12 2" NPSL MOUNTING FLANGE LOCKNUT PROBE BODY GASKET CAP c/w ½" NPT or PG16 CONDUIT ENTRANCE • Phenolic body comes with die-cast aluminum cap and zinc flange, zinc plated locknut, and neoprene gasket • See page 22 for Flange and Mounting Details •...

  • Page 24: Hazardous Locations Xpp-5

    Hazardous Locations XPP-5 143 mm ¾ “ NPT 9.4 mm (5.63”) (0.37”) cable SOW-18-3 41.2 mm (1.62") probe body (potted aluminum nameplate junction box) probe body (potted phenolic housing) 171.5 mm (6.75”) 2" NSPL nominal locknut mounting flange • C.S.A Approved for: Class I, Div.1, Gr.

  • Page 25: Interconnection Diagram For The Xpp-5

    Interconnection Diagram for the XPP-5 NON - HAZARDOUS LOCATION NON - HAZARDOUS LOCATION HAZARDOUS LOCATION HAZARDOUS LOCATION CLASS I, DIV 1, GROUPS A,B,C,D CLASS I, DIV 1, GROUPS A,B,C,D CLASS II, DIV 1, GROUPS E,F,G CLASS II, DIV 1, GROUPS E,F,G METAL CONDUIT MILLTRONICS CERTIFIED...

  • Page 26: Mounting Details

    Mounting Details 6 mm (0.25”) dia. hole for ¼ -20 nut and bolt or drill and tap, four holes on 6 mm (0.25”) dia. hole for 114 mm (4.5“) BCD ¼ -20 bolt on 114 mm (4.5”) BCD, four places 95 mm (3.75”) dia.

  • Page 27: Applications

    Applications Bucket Elevators down leg probe (see Figure A) probe (see Figure A) knee and housing 102 mm (4") preferred work floor location for chain and sprocket drive elevators. For chain and sprocket drive Preferred location for belt-driven elevators elevators, place the probe so that with ferrous bucket spacing greater than the gap between the bucket and the 76 mm (3"), and non-ferrous buckets with...

  • Page 28: Shafts

    Shafts probe probe key in keyway shaft 102 mm (4”) dia. min. shaft added paddle safety shield not shown These methods are viable if the speed is such that the blades or key will provide the number of pulses required at a minimum velocity of 1.5 m / minute (5 ft. / minute). In applications where exposed moving parts are required, safety shields and precautions should be applied.

  • Page 29: Non-Ferrous Window

    Non-Ferrous Window CONVEYOR 6 mm ø (0.25”) HOUSING CLEARANCE 12.7 mm MAX. 4 HOLES 115 mm (0.5”) (4.52”) 64 mm ø (3.5”) CLEARANCE PROBE AND HOLE MOUNTING FLANGE WINDOW 153 mm SQ. 115 mm (6”) (4.52”) 70 mm BRACKET 140 mm SQ. (2.75”) (5.5”) WELD...

  • Page 30: Rotating Shaft Of Rotary Feeder

    Rotating Shaft of Rotary Feeder Drive Sprocket on Rotary Feeder Page 26 MFA 4p – INSTRUCTION MANUAL 7ML19985FM01...

  • Page 31: Screw Conveyor Flights

    Screw Conveyor Flights End Bearing on Screw Conveyor 7ML19985FM01 MFA 4p - INSTRUCTION MANUAL Page 27...

  • Page 32: Troubleshooting

    Troubleshooting term 7/8 term 1/2 term 4/5 (note 1) relay 1 out relay 2 out normal pulsing 24 V 27 V closed closed alarm pulsing 24 V 27 V open open probe reversed 20 V 27 V open open polarity probe wiring 27 V 27 V...

  • Page 33: Maintenance

    c.To find out if the probe is defective (non-IMA type only; i.e. MSP-1 , MSP-3, and MSP-9 ): Disconnect probe from pre-amp. ii. Connect an ohmmeter across the black and white leads. iii. Nominal probe impedances are as follows MSP-1 115 ohms MSP- 3 and MSP- 9 750 ohms...
  • Page 34 Page 30 MFA 4p - INSTRUCTION MANUAL 7ML19985FM01...
  • Page 35 Index Operating Principles 12 Operation 13 Output 2 Ambient Temperature Range 3 Overspeed 15 Applications 23 Automatic Start Delay 11 Power 2 Pre-Amplifier (IMA and RMA) 13 Belt Conveyors 24 Probe Bucket Elevator 25 operating principle 12 Bucket Elevators 23 Probes diagrams and details 17 Cable length 9...
  • Page 36 Siemens Milltronics Process Instruments Inc. Siemens Milltronics Process Instruments Inc. 2008 1954Technology Drive, P .O. Box 4225 Subject to change without prior notice Peterborough, ON, Canada K9J 7B1 Rev. 1.2 Tel: (705) 745-2431 Fax: (705) 741-0466 *7ml19985fm01* Email: techpubs.smpi@siemens.com...

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