INSTALLATIONS
Refer to the back page of these instructions for outline and mounting
dimensions. Axial float or endplay must be less than ±1.27mm.
In preparation for installing the Model AV115 Encoder, it is first
necessary to clean both the accessory motor shaft and the mounting
face. These surfaces must be inspected and any paint, burrs, or other
surface imperfections removed.
Installation procedures should be performed only by qualified
personnel. Safety precautions must be taken to ensure machinery
cannot rotate and all sources of power are removed during installation.
ELECTRICAL
A. Operating Power (Vin)
1. Volts ........................5-24 VDC
2. Current ...................80mA, each output, no load
B. Output Format
1. 2O/ & Comp ...........A,A–, B,B– (differential line driver)
2. Marker ....................1/Rev, Z,Z–
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. Phase Sep. .................15% minimum
F. Frequency Range .......@5V, @1m cable, 250 kHz Max
.................................
@24V, @300m cable, #8 output, 45 kHz Max
G. PPR .............................4-50000
H. Line Driver Specs .......See table
I. Connectors .................See connector options on page 1
J. Integral LED Indicator ..GREEN: power on, unit ok. RED: alarm on
.................................
ORANGE: wiring fault
MECHANICAL
A. Rotor Inertia:...............12-25kg-cm
2
B. Acceleration:...............5000 RPM/Sec. Max.
C. Speed: .........................5400 RPM Max.
D. Weight: ........................0.9kg to 1.36kg.
E. Sensor to Rotor
Air Gap (nominal):.......0.58mm
Tolerance: ...................0.38mm
F. Rotor Axial Tolerance .±1.27mm
ENVIRONMENTAL
Solid cast aluminum stator and rotor
Fully potted electronics, protected against oil and water spray
Use “W” cable option on IP66/67 applications
V-Ring seals provided on through shaft covers
Operating Temperature: ........... -40 to 100°C, 0-100% condensing humidity
Vibration:
18 g’s
Shock:
1 meter drop test
SPECIFICATIONS
ROTOR INSTALLATION
The motor shaft must project at least 16mm from the motor face. For
set screw rotors only: Apply anti-seize compound to the motor shaft.
For all rotors: Slide the rotor onto the shaft with the marking “This side
out” facing out (away from the motor face). The rotor centerline must
match the sensor centerline. To accomplish this, use the rotor locating
gauge (A28503) and slide the rotor onto the shaft until it is in the
proper position as shown in Figure 1. If a gauge is not available, use
the stator housing alignment grooves as show in Figure 3.
STANDARD CAM SCREW ROTOR INSTALLATION
Turn the cam screws of the rotor in the directions shown on the rotor
to engage the cams. Tighten to 5.6 - 6.8 N-m (See Figure2) using the
3mm hex wrench. Total cam screw rotation will be less than one turn.
CAUTION
Do not adjust the cam screws before motor shaft
mounting; bottoming out the screws, or backing them
out excessively, can lead to insufficient shaft holding
force. Thread locker is preapplied on the cam screws.
LARGE BORE SET SCREW ROTOR INSTALLATION
Apply thread lock er to the rotor set screw holes, preferably from the
inside of the rotor bore before mounting. Tighten the rotor set screws
to 0.56 +/- 0.11 N*m (5 +/- in*lb). Large bore rotor set screw is M3
and should be tightened using a torque-measuring 1.5mm-drive hex
wrench
CAUTION
Use only a T-handle or torque hex wrench to tighten
set screws; using a right angle wrench will not provide
enough holding force, and the rotor may slip.
WARNING
Overtightening can lead to deformation &/or damage to
the rotor.
LINE DRIVER OPTIONS
Electrical Specifications
6
8
9
Units
Input Voltage
5-24
5-24
5-24
VDC
Nom Output Voltage
5-24
5-24
5
VDC
Line Driver
7272
Hx
7272
Output Resistance Typ
13
75
13
ohms
Maximum Peak Current
1500
3000
1500
mA
Maximum Average
Current
120
250
120
mA
Voh Typ
V
IN
-1
V
IN
-1
V
IN
-1
VDC
Vol Typ
0.5
0.2 @ 10mA line
current
0.5
VDC
Cable Drive Capacity
1000’ @ 5V
500’ @ 12V
200’ @ 24V
1000’
1000’
feet
Protection
Reverse
Voltage
yes
yes
yes
Short
Circuit
yes
yes
yes
Transient
yes
yes
yes
Power to A,
Gnd to A/
yes
yes
yes
Alarm
+V(out)
Output voltage equal to input voltage.
Alarm*
Open collector, normally off, goes low on alarm,
sink 100mA max, 50VDC max
LED
Green=power on, Red=Alarm, Orange=Wiring Error
Marker
One per revolution. Pulse width
approximately 2
°
*Alarm not available on connector option “G” (Northstar
TM
compatible pinout)
** Electrical specifications for THIN-LINE III model (rev BA or later), consult Avtron
for earlier model specifications.
5.6-6.8 N-M
TIGHTEN: 50-60 IN-LB
TO LOCK ROTOR
ROTATE CAM SCREWS
OF NOTCHES
IN HOUSING
ALIGN ROTOR FACE
WITH BOTTOM
ALIGNMENT NOTCH
Jack Screw Holes
M6
CW
CW
FIGURE 2
U.S. Patent
7,485, 997
LINE DRIVER OPTIONS
AV115 2
