M685 SMARTach Avtron Model M685 SMARTachRotary Pulse Generator (p

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M685 SMARTach Avtron Model M685 SMARTachRotary Pulse Generator (p

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Pulse Generator Instructions
M685 SMARTach
Avtron Model M685 SMARTachRotary Pulse Generator (patents #5,502,376 #5,545,985) severe duty speed position transducer. output directly proportional shaft position (pulse count) speed (pulse rate). M685 used both control instrumentation applications. When mounted machine shaft, M685 design eliminates need shaft couplings, adapter flanges, accessory mounting faces. unit employs keyless shaft mount lock M685's rotor 1.125" diameter shaft. designed maintain concentricity rotor shaft, providing accurate output signal. anti-rotation prevents housing rotation while allowing shaft float. enclosure Model M685 helps protect internal components from entry dust water. M685 utilizes magnetoresistive sensors. This proven technology ideal rugged environments since immune many contaminants that could affect performance optically-based pulse generators. These factors make M685 ideal demanding industries like paper, metals, chemical processing. Avtron SMARTachcan equipped with sensor modules. Each module two-phase output phase, with complements marker pulse with complement available option. Output resolution partly determined rotor's base (pulses revolution). Additionally, sensor module provide three different resolutions from same rotor: base PPR, base PPR, double base (see table). With sensor modules, same pulse generator provide different PPRs from given rotor same time. Only rotor pulse generator possible. Sensors interchangeable between pulse generators with different base PPRs. AVAILABLE RESOLUTIONS OPTION OPTION OPTION 1024 1200
duty cycle over time maintain this critical performance specification. only does pulse generator last longer, signal quality over life improved. FAULT-CHECK Adaptive Electronics reaches adjustment limit, Fault-Check output will notify drive controller impending failure. This output occurs before failure, allowing steps taken replace unit before causes unscheduled downtime. Fault-Check annunciation available "alarm" output through connector optional integral LED. BUILT-IN SPARE design M685 uses special sensor module. applications where below used, M685 automatically switches second sensor elements problem occurs primary set. drive controller notified Fault-Check system. M685 PART NUMBERS AVAILABLE OPTIONS
MEDIUM HIGH
removable sensor assemblies included with Model M685 Pulse Generators identified model number M484 follows: M484 PART NUMBERS AVAILABLE OPTIONS
Example: M685 could 1024 sensor output side feedback drive system, simultaneously sensor other side process computer. removable sensor assembly diagnostic package that includes Adaptive Electronics Fault-Check output. With this package, SMARTachcan maintain itself, provide signal there problem before problem causes unscheduled downtime. ADAPTIVE ELECTRONICS perfect duty cycle consists waveform whose "high" "low" conditions same duration (50%/50%). This especially important phase (A,B) applications where direction rotation determined precise sequencing phases. possible over time duty cycle change component drift, temperature changes mechanical wear. Adaptive Electronics extends life M685 constantly monitoring correcting
M484-
M685JLAN
ELECTRICAL SPECIFICATIONS
LINE DRIVER/VOLTAGE INPUT OPTIONS INPUT VOLTAGE (+V) OPERATING CURRENT Load Refer Engineering Note DIFFERENTIAL SQUARE WAVE OUTPUT leads rotation, anti drive view 11.5-15.5 80mA 4.8-18 235mA 90mA 4.8-26 235mA 90mA 60mA ((+V)-1.8V)min ((+V)-1V)min ((+V)-2.3V)typ @50mA avg. @50mA avg. @20mA avg. 80mA 80mA max, 1.5A peak @50mA avg. max, peak 2000 0.5V @20mA avg. 80mA
MECHANICAL SPECIFICATIONS
SPEED RANGE SPEED RANGE SPEED RANGE WEIGHT 0-4500 base 0-4200 base 0-3600 base lbs.
(Source) (Sink)
ENVIRONMENTAL SPECIFICATIONS
OPERATING TEMPERATURE DUST WATER standard M685 pulse generator shipped with universal breather/drain equalize pressure M685 exposed temperature cycles provide drain condensate. labyrinth design limits entry dust normally satisfactory levels, water spray direction harmful effect. environments with stable temperatures, breather replaced with 1/4" pipe plug making pulse generator water-tight dust-tight.
MAXIMUM CABLE DRIVE (FEET) PROTECTION
MARKER ALARM Refer Engineering Note
1000 Reverse Voltage Transient Short Circuit Once revolution. Pulse width approximately base period. (OUT): This convenience output, internally jumpered 50mA operating voltage. intended alarm circuits like solid state relays that referenced ALARM Open collector, sink max, withstand from common. Output goes alarm. INTEGRAL INDICATOR. GREEN Power Alarm
Features specifications subject change without notice.
INSTALLATION
conventional pulse generator installation, flexible coupling used compensate small shaft misalignment runout driving shaft. Often this misalignment runout reduce life mechanical parts cause unwanted modulation electrical output signal. While misalignment problem with M685, circular runout driving shaft cause once revolution frequency modulation output signal. Depending upon application, this acceptable. Typically, runout 0.001 less will have adverse effect.
CAUTION SPANNER WRENCHES MUST USED DURING FOLLOWING PROCEDURES. Using substitute distort damage unit. remove bearing locknut time. This locknut factory adjusted optimum M685 performance. NOTE spanner wrenches, which required M685 installation, accommodate nuts found under cap. Holding bearing locknut, remove diameter clamping slide internal compression sleeve. Verify that compression sleeve installed hand shaft where unit installed. File burrs that obstruct sleeve installation lightly shaft. keyway flat exists shaft, provide sealing medium, true shaft back round using metal putty equal. Return compression sleeve M685 hub. Thread clamping onto M685 hand until resistance felt. TIGHTEN THIS TIME.
ITEMS REQUIRED INSTALLATION
following special items required installation: Spanner Wrench Avtron 484017 diameter clamping nut. McMaster-Carr 6975A17 Spanner Wrench Avtron 484018 diameter bearing locknut. McMaster-Carr 6975A19 Thread locking liquid Locktite 242, supplied Metal Putty (required machine shafts with keyway.)
PULSE GENERATOR INSTALLATION
Installing M685 Anti-Rotation Arm: free Anti-Rotation must secured customer stationary member such floor machine frame. Refer "Anti-Rotation Mounting Guidelines" last page general requirements. Based location stationary point guidelines page attach thick mounting board places M685. long machine screws provided.
SHAFT STYLE
O-RING 1/4-20 MACH SCREW WAVE SPRING 1/2"
BEARING LOCKNUT
UNPACKING INSTRUCTIONS
M685 supplied with four main items: pulse generator with integral specific option package, anti-rotation arm, mounting board with attaching hardware, V-ring seal. Check verify components received ordered. Check external damage missing items. This must handled customer through shipper. Check nameplate against your requirement make sure proper style, output, PPR, options, voltage have been received.
3/4" CLAMPING
COMPRESSION SLEEVE
MACHINE SHAFT PREPARATION
Preparing machine shaft prior Pulse Generator installation essential providing adequate barrier against environmental contamination. some cases, separate stub shaft (1.125" 4.5" long) will installed motor. prepare machine shaft that M685 installed conduct following procedures (see figures): Remove from M685 four machine screws which hold cover plate. Remove cap, O-Ring, wave spring, noting location each assist reassembly.
STUB SHAFT
MACHINE STUB SHAFT O-RING 1/4-20 MACH SCREW WAVE SPRING 1/2" BEARING LOCKNUT RADIAL SEAL
COMPRESSION SLEEVE
M685GLAN
3/4" CLAMPING MACHINE THRU SHAFT
THRU SHAFT
Ensure that machine shaft lightly oiled. packet silicone grease provided lubricate following shaft seals: First, M685 types have O-ring inside their hollow shafts motor end. addition, THRU SHAFT types, clamping O-ring inside, plus outside clamping requires lubrication radial seal step Slide M685 onto machine shaft, mounting board first. Ideally, M685 housing will from motor machine housing, this vary depending machine profile antirotation clearance requirements. Consider shaft float when positioning M685. STUB SHAFT APPLICATIONS, place M685 onto shaft. machine shaft must extend completely through M685 compression sleeve approximately flush with clamping nut. THRU SHAFT APPLICATIONS, position M685 required. Attach free Anti-Rotation mounting board using shoulder bolt provided. Remove clamping apply liquid thread locker threads. (Locktite grade 242, supplied, should used most applications.) NOTE Where threadlocker been used, additional force required M685 removal. Replace clamping tighten less than equal 0.09", shown CLAMPING sketch (approx. 15-20 ft-lbs), holding bearing locknut place. Spanner wrenches required this operation.
port. Environmental specifications. breather must lowest point tach have clear, unrestricted drainage path. some object interferes with breather, first modify that object. clearance cannot provided, breather removed, only least following conditions met: opening protected from direct contact with standing splashing liquids. temperatures will stable (within breather replaced with 1/4" pipe plug. neither above possible, i.e. opening must plugged protection temperatures will vary, then unit should purged with clean, low-pressure, filtered, positive pressure psi) through opening. remove plug except provide such purging. Purging M685 should reviewed with Avtron.
WIRING INSTRUCTIONS
bidirectional operation 2-phase SMARTachTM, proper phasing output channels important. Phase channel leads phase channel clockwise shaft rotation viewed from anti-drive accessory motor (tach mounting end). Interconnecting cables specified wire selection chart below based typical applications. Refer system drawing specific cable requirements where applicable. Physical properties cable such abrasion, temperature, tensile strength, solvents, etc., dictated specific application. General electrical requirements are: stranded copper, thru gauge options AWG), each wire pair individually shielded with braid foil with drain wire, 0.05 maximum total mutual direct capacitance, outer sheath insulator, 1,000 max. Wire Selection Chart some suggested cables.
CLAMPING
INCH BEARING LOCKNUT WHEN PROPERLY ASSEMBLED, THIS WILL LESS THAN 0.09".
SINGLE ENDED APPLICATIONS
INCH CLAMPING
OUTPUT OPTIONS FUNCTION
BLUE GREEN BLACK ORANGE
+V(OUT)
MOTOR SHAFT
M685
OPERATING VOLTAGE COMMON MARKER RELAY ALARM GROUND
STUB SHAFT INSTALLATIONS, replace with wave spring (loading spring) against bearing O-ring located groove. Secure with four machine screws previously removed. Apply supplied grade Locktite screws when assembling. THRU SHAFT APPLICATIONS, prior replacing step apply small amount silicone grease (provided) seal surface clamping nut. radial seal will seal this surface.
BROWN VIOLET
DIFFERENTIAL APPLICATIONS
OUTPUT OPTIONS FUNCTION
BLACK
+V(OUT)
ENVIRONMENTAL CONSIDERATIONS
Special attention given conduit runs, interconnection wiring NEMA type enclosure mounting. those applications where ambient temperatures controlled within deg. high humidity/washdown present, position flexible conduit with slight prevent condensation from entering Pulse Generator conduit. harsh environments, which include temperature extremes, high humidity, equipment washdown atmosphere contamination, extra care required. Follow these steps reduce potential problems: Always mount connection points, conduit couplings, junction boxes, etc., lower than actual generator. washdown areas, shroud otherwise cover Pulse Generator prevent direct water spray. attach shroud directly generator. Keep conduit outputs axis rotation horizontal. pulse generator shipped standard with universal breather/drain bottom port stainless steel pipe plug
M685
COMMON OPERATING VOLTAGE MARKER MARKER COMPLEMENT RELAY ALARM GROUND
GREEN YELLOW BLUE GRAY ORANGE WHITE BROWN VIOLET
TYPICAL WIRE SELECTION CHART
AWG, multiple pair, individually shielded
BELDEN PAIR PAIR PAIR PAIR 9368 9369 9388 9389 ALPHA 6062 6063 6064 6066
NOTE: When using plug-in industrial connector ("P" option), wire ends must tinned with solder before connection screw terminals.
M685HLAN
ANTI-ROTATION MOUNTING GUIDELINES
Anti-Rotation stabilizes Pulse Generator keeps from rotating machine shaft rotates. best performance, minimize Generator movement following these Anti-Rotation mounting guidelines closely possible.
Mount M685 with conduit entry ports positioned horizontally. Fasten thick mounting board inboard side M685 positions shown. long fasteners. Mount Anti-Rotation perpendicular motor shaft axis rotation. mounting bolts associated bearings should parallel motor shaft also (top view). Mount Anti-Rotation approximately line established between mounting board mounting hole shaft centerline (viewed from end). Mount M685 close possible motor with mounting board closest motor. Establish stationary (static) mounting point free Anti-Rotation Arm, using guidelines above. bolt provided fasten stationary point. Anti-Rotation fully threaded adjusted length. recommended length inches.
OUTLINE DIMENSIONS OPTION DETAILS
COVER PLATE SINGLE OUTPUT ONLY
8.88 (225.55) 5.25 (133.35) 4.62 (117.35)
4.56 (115.83) 3.25/4.00 (82.55/101.60)
RIGHT MODULE OPTION "N"&"M"
LEFT MODULE
0.150 (3.81)
5.938 (150.825) 4.00 (101.60) (1524) 4.75 (120.65)
NOTE 1/4-20 UNC-2B 0.44 (11.18) HOLES STANDARD: 1/2-14
OPTIONAL INDICATOR REVERSE SIDE (AVAILABLE WITH CONNECTOR OPTION)
6.75 (171.45)
OPTIONAL THRU SHAFT MODEL NOTE
OPTION "P"&"V"
PLUG-IN INDUSTRIAL CONNECTOR
3.09 (78.49)
HOLE 1.122/1.125 (28.499/28.575) SHAFT
1.59 (40.39) 5.50 (139.70) 4.75 (120.65) 0.38 (9.65) 0.312 (7.925) HOLES
3.50 (88.90)
3.62 (91.95)
1/2" FLEXIBLE WATERPROOF METAL CONDUIT/ CONNECTOR
3.00 (76.20) 2.00 (50.80)
RELAY ALARM
1.12 (28.45)
OPTION
RIGHT ANGLE "MS" CONNECTOR
M685BLAN
OPTION
"MS" CONNECTOR NOTES: DIMENSIONS APPROXIMATE. MOUNTING REQUIRES ANTI-ROTATION DRAWING THIS PAGE. DIMENSIONS PARENTHESIS MILLIMETERS.
OPTION "T"&"S"
NOTE
(BOX DEPTH 3.12 (79.25))
NON-CONDUCTIVE ADAPTER WHEN SPECIFIED.
Features specifications subject change without notice. Avtron standard warranty applies. dimensions inches.
REV. 9-11-01
Declaration Conformity: Model M685 SMARTachPulse Generator been assessed type tested against following Harmonized European Standards: 50081-1:1992, 50082-1: 1998. Model M685 been found compliant with requirements Directive 89/336/EEC provided that following conditions met: electrical supply M685 must within specified limits. electrical supply must offer suitable protection from voltage surges unless application does require such protection. behalf Avtron Manufacturing: Stephen D'Henin, Certification Manager, Epsilon Certification Service.

M685 SMARTach Avtron Model M685 SMARTachRotary Pulse Generator (p

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