Siemens milltronics MFA 4P User manual

Instruction Manual May 2008
MFA 4P
milltronics

© Siemens Milltronics Process Instruments Inc. 2008
Safety Guidelines: Warning notices must be observed to ensure personal safety as well as that of
others, and to protect the product and the connected equipment. These warning notices are
accompanied by a clarification of the level of caution to be observed.
Qualified Personnel: This device/system may only be set up and operated in conjunction with this
manual. Qualified personnel are only authorized to install and operate this equipment in accordance with
established safety practices and standards.
Unit Repair and Excluded Liability:
•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.
•Do not reuse faulty components.
Warning: This product can only function properly and safely if it is correctly transported, stored,
installed, set up, operated, and maintained.
This product is intended for use in industrial areas. Operation of this equipment in a residential area
may cause interference to several frequency based communications.
Note: Always use product in accordance with specifications.
Copyright Siemens Milltronics Process
Instruments Inc. 2008. All Rights Reserved
Disclaimer of Liability
This document is available in bound version and in
electronic version. We encourage users to purchase
authorized bound manuals, or to view electronic versions
as designed and authored by Siemens Milltronics Process
Instruments Inc. Siemens Milltronics Process Instruments
Inc. will not be responsible for the contents of partial or
whole reproductions of either bound or electronic
versions.
While we have verified the contents of this
manual for agreement with the
instrumentation described, variations
remain possible. Thus we cannot
guarantee full agreement. The contents of
this manual are regularly reviewed and
corrections are included in subsequent
editions. We welcome all suggestions for
improvement.
Technical data subject to change.
MILLTRONICS®is a registered trademark of Siemens Milltronics Process Instruments Inc.
Contact SMPI Technical Publications European Authorized Representative
at the following address:
Technical Publications Siemens AG
Siemens Milltronics Process Instruments Inc. Industry Sector
1954 Technology Drive, P.O. Box 4225 76181 Karlsruhe
Peterborough, Ontario, Canada, K9J 7B1 Deutschland
Email: [e-mail]
•For a selection of Siemens Milltronics level measurement manuals, go to:
www. siemens.com/processautomation. Under Process Instrumentation, select
Level
Measurement
and then go to the manual archive listed under the product family.
•For a selection of Siemens Milltronics weighing manuals, go to:
www. siemens.com/processautomation. Under Weighing Technology, select
Continuous
Weighing Systems
and then go to the manual archive listed under the product family.

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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
XPP-5 with IMA (internally mounted pre-amplifier) .......................................................................9
Connection to power: ...........................................................................................................................10
Wiring .................................................................................................................................. 11
MFA 4p Wiring for Automatic Start Delay ......................................................................................11
Operating Principles ........................................................................................................ 12
MFA 4p .....................................................................................................................................................12
Probe ........................................................................................................................................................12
Pre-Amplifier (IMA and RMA) ............................................................................................................13
MFA 4p Operation .................................................................................................................................13
Calibration ..............................................................................................................................................14
Underspeed ..................................................................................................................................14
Overspeed ....................................................................................................................................15
Signal Generator Interface .................................................................................................................16
Probes ................................................................................................................................. 17
Mini Sensing Probe MSP-1 .................................................................................................................17
High Temperature Probe MSP-3 ........................................................................................................17
Stainless Steel Probe MSP-9 ..............................................................................................................18
Mounting Details .........................................................................................................................18
Standard Probe MSP-12 .....................................................................................................................19
Hazardous Locations XPP-5 ................................................................................................................20
Interconnection Diagram for the XPP-5 .................................................................................21
Mounting Details ...................................................................................................................................22
Applications .......................................................................................................................23
Bucket Elevators ...................................................................................................................................23
Shafts .......................................................................................................................................................24
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Table of Contents
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
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7ML19985FM01 MFA 4p - INSTRUCTION MANUAL Page 1
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Introduction
Milltronics 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.
The MFA 4p works with a pre-amplifier which can be internal to the motion sensing
probe, or remote from the motion sensing probe.
Pulses generated from the probe are continually compared to the adjustable setpoint. If
the pulse rate is lower than the setpoint, the alarm relays operating in a faiI-safe mode
will de-energize, indicating failure. The relays will not energize until the pulse rate
increases above the setpoint.
Safety Notes
Special attention must be paid to warnings and notes highlighted from the rest of the text
by grey boxes.
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.
If you have any questions, comments, or suggestions about the manual contents, please
email us at [email protected].
For the complete library of Siemens Milltronics manuals,
go to www.siemens.com/processautomation.
Note: This product is intended for use in industrial areas. Operation of this
equipment in a residential area may cause interference to several frequency
based communications.
WARNING means that failure to observe the necessary precautions
can result in death, serious injury, and/or considerable material
damage.
Note: means important information about the product or that part of the operating
manual.
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Page 2 MFA 4p - INSTRUCTION MANUAL 7ML19985FM01
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Specifications
Specifications
Safety
Power
• 100/115/200/ 230 V AC ±15%, 50/60 Hz, 15 VA
Output
• 2 relays with Form C (S.P.D.T.) fail-safe contacts (relays operate in unison)
Resistive Rating:
• 8 A @ 250 V AC
Repeatability
•±1%
Temperature coefficient (setpoint variance)
• 0.018%/ °C (0.01% / °F)
Setpoint adjustment range
• 2 to 3,000 ppm (pulses per minute): standard model
• 0.15 to 15 ppm: slow speed version
Dynamic range
• 0 to 7,200 ppm
Note: The Milltronics MFA 4p (Motion Failure Alarm) is to be used only in the manner
outlined in this manual, otherwise protection provided by the equipment may be
impaired.
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7ML19985FM01 MFA 4p - INSTRUCTION MANUAL Page 3
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Installation
Weight
• polycarbonate enclosure: 1.5 kg (3.3 lb.)
• mild steel or stainless steel enclosure: 4.3 kg (9.5 lbs.)
Approvals1
•CE,CSA
(C/US), FM
• EMC performance available on request
Environmental
• location: Indoor/outdoor
• altitude: 2000 m max.
• ambient temperature: –20 oC to 50 oC (–4 oF to 122 oF)
• relative humidity: suitable for outdoor (Type 4X / NEMA 4X / IP65)*
• installation category: II
• pollution degree: 4
*Type 4/ NEMA 4 /IP65 with mild steel enclosure
1. EMC performance available upon request.
Related Equipment Ambient Temperature Range Approx wt.
RMA –40 °C to 60 °C (–40 °F to 140 °F ) 2.3 kg (5 lb)
MSP-12 –40 °C to 60 °C (–40 °F to 140 °F ) 1.4 kg (3 lb)
XPP-5 –40 °C to 60 °C (–40 °F to 140 °F ) 1.8 kg (4 lb)
MSP-1 –40 °C to 80 °C (–40 °F to 180 °F ) 0.5 kg (1 lb)
MSP-3 –40 °C to 260 °C (–40 °F to 500 °F ) 1.4 kg (3 lb)
MSP-9 –40 °C to 260 °C (–40 °F to 500 °F ) 1.8 kg (4 lb)
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Page 4 MFA 4p - INSTRUCTION MANUAL 7ML19985FM01
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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.
Probe
The probe should be mounted onto a vibration free structure using the mounting flange.
The gap between probe and target should be large enough to prevent the target from
damaging the probe. The probe environment must be within the probe's ambient
temperature range and non-corrosive to the probe's body. Refer to Applications drawings
on page 23.
The probe design detects a changing magnetic field, typically caused by a ferromagnetic
target disturbing the probe's magnetic field. Extremely strong magnetic fields (like those
produced by the 30A/m requirements of 1EC 60004-8, Power Frequency Magnetic Field
Immunity test) will be detected and will result in loss of functionality.
Functionality loss indicators:
• alarm conditions by relay trip
• false pulse readings in LED1
Consider the probe location carefully before installation. Avoid strong magnetic fields
(50/60 Hz) from nearby power transformers, heater elements, or large industrial motors,
because these can affect the probe’s performance.
Wiring
Where possible, the probe components should be interconnected via flexible conduit.
This allows for easier removal or adjustment of the probe and mounting flange assembly.
Note: Do not mount MFA 4p in direct sunlight.
Note: Installation shall only be performed by qualified personnel and in accordance
with local governing regulations.
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7ML19985FM01 MFA 4p - INSTRUCTION MANUAL Page 5
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Installation
Dimensions
MFA 4p
Type 4X / NEMA 4X / IP65 Polycarbonate Enclosure
Notes:
• Non-metallic enclosure does not provide grounding between conduit
connections: use grounding type bushings and jumpers.
• Use only approved, suitable size hubs for watertight application.
160 mm
(6.325")
131 mm
(5.138")
15mm
(0.59")
6 mm
(0.25") 82 mm
(3.225")
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
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Page 6 MFA 4p - INSTRUCTION MANUAL 7ML19985FM01
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Installation
Type 4 / NEMA 4 / IP65 Painted Steel Enclosure &
Type 4X / NEMA 4X / IP65 Stainless Steel Enclosure
Notes:
• Painted steel enclosure does not provide grounding between conduit
connections: use grounding type bushings and jumpers.
• Use only approved, suitable size hubs for watertight application.
203 mm
(8.0”)
152 mm
(6.0”)
19 mm
(0.75”)
273 mm
(10.75”) 254 mm
(10.0”)
178 mm
(7.0”)
∅8 mm
(0.31”)
19 mm
(0.75”)
227 mm
(8.94”)
102 mm
(4.0”)
21 mm
(0.83”)
suitable location for
Conduit Entrance
(customer specified)
7ML19985FM01.book Page 6 Wednesday, May 21, 2008 2:17 PM