Avtron M3-A Talimatlar - Sayfa 2

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Optional:

Torque Arm

Fan Cover Mounting Kit

C-Face Mounting Kits

Clean machine shaft of any dirt and check for any burrs or damage.

Install the anti-rotation bracket to the back of the M3 using 3/8-16

screws and thread locker.

Remove screws from clamping collar, apply thread locker to screw

threads and reinstall. Place clamping collar loosely on the inboard

end of the shaft. Carefully slide M3 onto the shaft. DO NOT FORCE.

Encoder should slide on easily. After verifying M3 fit onto shaft, remove

M3, apply anti seize supplied to shaft and re-install M3 (see shaft

engagement).Tighten screws on clamping collar evenly until snug,

then firmly tighten. DO NOT USE A STANDARD RIGHT ANGLE WRENCH.

Use only a T-handle hex wrench or torque wrench with hex bit.

Secure free end anti-rotation bracket to frame. Use supplied insulating

hardware if necessary as shown. Adapter kits are available for NEMA

56C (A24492) and 8 1/2" (A24493) mounting faces.

Shaft Engagement

For end of shaft mounting applications:

See table on last page.

For shaft lengths greater than the maximum engagement allowed, end

of shaft mounting may still be employed by locating the encoder away

from the motor using a spacer between the motor and anti-rotation

bracket.

Corrective Action for Excess Housing Movement (Wobble)

The hollow shaft M3 design eliminates the potential for bearing and

coupling failures from misalignment, however, excessive housing

movement (wobble) may cause undesirable vibrations. The higher the

RPM, the more severe the vibration will be from housing movement.

In a typical installation a housing movement of 0.007" TIR or less (as

measured at the outside diameter of the main encoder body) will not

have an adverse effect. If excessive housing movement is detected in

the installation:

Check the shaft the M3 is mounted on for excessive shaft

runout. NEMA MG1 calls for 0.002" TIR or less.

ELECTRICAL

A. Operating Power (Vin)

1. Volts ......................................See Line Driver Options

2. Current ..................................120mA, no load

B. Output Format

1. 1O / Connector Options H & J

2. 2O / (A & B) ...............................Connector Options E & F

3. 2O / & Comp. ............................Connector Options A,B,C,M,L,K,V,P,

–

(A,A

, B,B

) ...............................N,T,W,X,& Z (differential line driver)

4. Marker ...................................All Options, 1/Rev, Gated with B low

@ and below 1200 PPR

–

5. ÷4 (C,C

) .................................Connector Options A,B,C,M,L,K,V,P,

N,T,W,X,& Z (differential line driver)

C. Signal Type ............................Incremental, Square Wave, 50 ±10%

Duty Cycle

D. Direction Sensing ..................O / A leads O / B for CW rotation as viewed

from the back of the tach looking at the

non-drive end of the motor.

E. Transition Sep. ......................15% minimum

F. Frequency Range ..................0 to 150,000 Hz.

G. PPR ........................................240, 256, 360, 480, 512, 600, 1024,

1200, 2048, 2500

H. See Line Driver Options

MECHANICAL

A. Shaft Inertia ..........................0.08 to 0.23 oz. In.

B. Acceleration ..........................5,000 RPM/Sec.

C. Speed ....................................5,000 RPM for all M3 models, except

those shown below

3,600 RPM for M3-6, M3-7, M3-D, M3-E,

M3-G, M3-H, M3-J

If excessive housing movement still exists after the above steps, it

may be necessary to physically bias the attitude of the encoder on

the motor shaft while the clamping collar is being tightened. Either

by eye or using dial indicators, note the position around the outside

diameter of the encoder that is most out of position from true while

turning the motor shaft slowly. With the motor shaft no longer turning,

loosen the clamping collar. While applying moderate force by hand

against the outside diameter of the encoder on the side opposite

where the out of true position was observed, retighten the clamping

collar. Several iterations may be necessary if the first attempt under

or over compensates. This method may be used to help compensate

for undersized shafts, shaft runout, bent clamping fingers, and other

problems.

WIRING INSTRUCTIONS

The M3 can be wired for single phase, two-phase, either with or

without complements, with or without markers and with or without

complementary divide by 4. See connector options and wiring

diagrams below.

SPECIFICATIONS

Verify that the M3 engagement with the motor shaft conforms

to the engagement rules on page 4. In general, maximizing

engagement will minimize housing movement.

Verify that the mounting shaft diameters conform to the rules

on page 4. Excessive housing movement occurs when the

clearance between the motor shaft and pulse generator shaft

allows the two center lines to miss match.

Loosen the clamping collar and rotate the motor shaft 180°

within the M3 hollow shaft sleeve.

Make sure the clamping collar is tightened equally on both

sides.

Move the split in the clamping collar over a solid portion of

the M3 shaft.

CAUTION

Be sure to remove power before wiring the encoder.

Be sure to ground the cable shield: It can be connected

to case ground at the encoder, or grounded at the

receiving device, but should not be grounded on both

ends.

D. Weight ...................................6 lbs (2.7kg).

E. Starting Torque ......................1.5 to 20 oz. In.

F. Shaft Dia. Tolerance ..............See drawing on last page.

G. Shaft Engagement .................See drawing on last page.

ENVIRONMENTAL

A. Enclosure Rating ...................Sealed against dust and water ingress.

B. Operating Temp. ....................-20* to 85°C

*-40°C optional

LINE DRIVER OPTIONS

Voltage Input (Vin)

5-24 VDC

Output High (Volts)

(Vin) -2 (typ)

Output High

80 (max.)

(milliamps)

Output Low (Volts)

0.5 (typ)

Output Low

80 (max.)

(milliamps)

Protection

Reverse Voltage,

Transient,

Short Circuit (high

Short Circuit (none)

& low)

1000 ft. @ 5 V

Maximum Cable

500 ft. @ 12 V

Drive(Feet)

200 ft. @ 24 V

Output Options

5-18 VDC

18-24 VDC

5-24 VDC

330 ohm

(Vin) -1 (typ)

5 VDC

pull up

80 (avg.),

330 ohm

80 (max.)

1500 (peak)

pull up

0.5 (typ)

1 (max.)

0.5 (typ)

80 (avg.),

50 (avg.)

80 (max.)

1500 (peak)

Reverse Voltage,

Transient,

Short Circuit (high

Short Circuit (low)

& low)

2000 ft.

1000 ft.

1000 ft. @ 5 V