MODEL Encoder Instructions AV30

MODEL Encoder Instructions  AV30
Encoder Instructions
MODEL
AV30
Nidec-Avtron Makes the Most Reliable Encoders in the World
8 9 0 1 E . P L E A S A N T VA L L E Y R O A D • I N D E P E N D E N C E , O H I O 4 4 1 3 1 - 5 5 0 8
T E L E P H O N E : ( 1 ) 2 1 6 - 6 4 2 - 1 2 3 0 • FA X : ( 1 ) 2 1 6 - 6 4 2 - 6 0 3 7
E - M A I L : t a c h s @ n i d e c - a v t r o n . c o m • W E B : w w w. a v t r o n e n c o d e r s . c o m
DESCRIPTION
The Avtron Model AV30 is a severe duty absolute encoder. It
expresses the position of rotation as an output message or value.
AV30 can measure a single turn of rotation or multiple rotations. The
AV30 measures the shaft rotation and position without the need for
external power or internal batteries through it’s innovative Wiegend
wire energy system. The AV30 operates down to zero speed and can
be used for both control and instrumentation applications.
CAUTION
Do not utilize AV30 in hazardous locations which
require ATEX, UL, CUL, CSA, or other explosion protection
certification. AV30 is not certified for hazardous
locations.
The AV30 is designed for mounting on flanges (58mm, 85mm
flanges, or US 1.25”), or on a foot mount bracket for coupling. The
AV30 is not recommended for pulley or chain drive applications.
SOLID SHAFT
WARNING
Installation 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.
INSTALLATION
Refer to the back page of these instructions for outline and mounting
dimensions.
Equipment needed for installation
Supplied:
AV30 Encoder
Optional:
(none)
The AV30 housing features non-contacting labyrinth seals. It
can withstand rough environments, shock, and vibration in any
orientation.
The AV30 utilizes magnetic sensors. This proven technology is ideal
for rugged environments since it is immune to many contaminants
that cause optical encoders to fail.
The encoder must be driven by a positive drive rather than a friction
drive. The following means of coupling are acceptable when properly
installed: Direct Coupling.
SAFETY
With a direct drive, use a flexible disc coupling and align the shafts
as accurately as possible. For motors with a pre-aligned flange, it is
also acceptable to use a “spider” or “jaw” coupling type. If a rubber
slinger disc is used, position it on the shaft so it will rotate freely.
The AV30 is not considered as a safety device and is not suitable for
connection into a safety system.
Model
AV30
Bus
ACDPS-
Analog
CANOpen
DeviceNet
Profibus DP
SSI
Flange
Shaft
Turns
1- 58mm
flange,
36mm male
pilot, 3X M3,
3X M4 @
48mm BC
2- 58mm
flange,
50mm male
pilot, 3X M3,
3X M4 @
42mm BC
4- 2.65” Square
flange, 1.25
male pilot”
5- 85mm (B10)
flange 6X M6
@ 100mm
B- 3/8” solid shaft
w/flat
C- 10mm solid shaft
w/flat
H- 11mm dia. Shaft
T- 6mm solid shaft,
no flat
X- 0/0-single turn
A- 16/4
(analog)
2- 4096/12
3- 8192/13
4- 16384/14
5- 32768/15
Not Supplied:
Open Wrenches
Hex Wrenches
Dial Indicator Gauge
Caliper Gauge
CPR
2- 4096/12
3- 8192/13
AV30
Conn
Conn exit
Coding
C- 3xM12 4/5/5 pin
E- M12/8 pin
F- M23/12 pin
K- 3x cable entry
W- Cable, 1m
S- Single cable entry
A- side/radial
Digital
1- Binary
2- Gray
1
Analog
3- 0-5V
4- 0-10V
5- 4-20mA
6- 0-20mA
Add'l drill
pattern
X- No Additional
Face Drill Holes
Mods
000- none
9xx- special
cable length
(xx-feet [0.3m])
The AV30 performance and life will be directly affected by the
installation. Following this sequence of steps is recommended.
REPLACING PARTS
1) Clean and inspect motor/driver shaft. Do not use force to
assemble coupling onto motor/driver shaft. Any mounting
bracket must be secured to a flat, rigid, vibration free steel or
aluminum base which can be machined to accept the
mounting hardware.
2a) For Foot Mounting: Temporarily mount the AV30 to the foot
bracket, install the coupling to the AV30 and driver, and verify
that the location is suitable for installation.
3a) If the AV30 encoder, bracket and coupling are suited to the
area, check motor/encoder shaft alignment with a straight
edge from multiple positions around the shaft circumference to
verify that it meets specifications.
4a) While maintaining alignment, precisely mark the position of the
foot bracket on its mounting base.
5a) Remove the AV30. Transfer punch or layout the mounting hole
pattern as indicated on outline drawing.
6a) Machine through holes or tap holes
in center of base slots to give some degree of freedom in final
alignment.
7a) Reinstall the AV30 with the flexible coupling loosely in place,
and tighten down all mounting hardware. Check
motor/encoder shaft alignment with a straight edge from
multiple positions around the shaft circumference to verify that
it meets specifications. Use thread locker on cap
screws which mount AV30 to foot bracket. Proceed to step 8.
The AV30 has has no user-replaceable parts.
2b) For Flange Mounting: Temporarily mount the AV30 to the flange
bracket, install the coupling to the AV30 and driver, and verify
that the location is suitable for installation.
3b) If the AV30 encoder, bracket and coupling are suited to the
area, check motor/encoder shaft alignment with a straight
edge from multiple positions around the shaft circumference to
verify that it meets specifications.
4b) If the shaft angular alignment is not acceptable, loosen the
mounting screws to the flange and apply thin metal shims to
the face of the encoder and retest the angular alignment until
acceptable.
5b) If the shafts are parallel, but misaligned (parallel misalignment),
the flange will need to be re-machined. Shimming will NOT
correct parallel misalignment, and will lead to premature
bearing wear or coupling breakage. (After correcting alignment,
proceed to step 8)
8)
9)
Ensure any flat or keyway on the motor and encoder shaft are
aligned with the set screw holes of the flexible coupling. Apply
thread locker to coupling set screws and tighten per
manufacturer’s recommendations.
Recheck alignment and tighten all hardware after first several
hours of operation.
ENVIRONMENTAL CONSIDERATIONS
Follow these steps to reduce potential problems:
1) Always mount connection points, conduit couplings, junction
boxes, etc., lower than actual encoder.
2) For washdown areas, shroud or otherwise cover the encoder to
prevent direct water spray. Do not attach the shroud directly to
the encoder.
REPAIRS
REMOVAL INSTRUCTIONS:
1. Unfasten coupling.
2. Remove the screws which secure the encoder to the flange or
foot mount. Note that the foot mount can remain in place.
3. Slide the encoder free of the mount.
AV30
CAUTION
Do not attempt to remove, service, or adjust any of the
internal components of the AV30.
WIRING INSTRUCTIONS
CAUTION
Remove power before wiring.
Interconnecting cables specified in the wire selection chart are
based on typical applications. Refer to the system drawing for
specific cable requirements where applicable.
Physical properties of cable such as abrasion, temperature, tensile
strength, solvents, etc., are dictated by the specific application and
communications bus. Do not use unshielded cable. Ground one end
(only) of the shield to earth ground.
Do not run encoder wiring parallel to power cable wiring for
extended distances, and do not wrap encoder cable around power
cables.
TROUBLESHOOTING:
If the controller indicates a loss of encoder fault, check the encoder
power supply. If power is present, check polarity. If the wiring
appears correct and in good shape, test the wiring by replacing the
AV30. If the controller still shows encoder loss/fault, then the wiring
is faulty and should be repaired or replaced.
An oscilloscope can also be used to verify output of the AV30
encoder at the encoder connector itself and at the drive/ controller
cabinet. Depending on the communication method, signals will vary
but the oscilliscope should show the output signals varying. Keep in
mind that SSI and Profibus DP are master-slave systems and require
the controller to signal the encoder to transmit position.
For SSI, monitor the clock input line to ensure the controller is
triggering the encoder to send position. The clock should obey the
signal requirements shown in the SSI signal section, and should
appear as a rapid set of transitions on the clock line.
For Profibus DP, CANOpen, and DeviceNet, the transmit and receive
signal pairs should change state rapidly as the controller transmits
messages to the encoder and the encoder replies. Transmission
rates vary, but these messages can be extremely short and typically
require scope triggering to spot them.
For Profibus DP, ensure termination resistors are in place (or
switched on) at each end of the cabling system, and that no
termination resistors are in place in the middle of the system.
For analog output, a multimeter can be used to measure the output
signal. Disconnect the encoder outputs to ensure no interference
from field wiring and measure the output voltage or current
depending on the output style selected. Rotating the shaft should
produce a change in output value.
For analog output: If the output is within the expected range
but does not seem to change, the analog value may have been
accidently scaled to a tiny fraction of a revolution or such a huge
number of turns that the output change cannot be detected.
Connect both Set End Point 1 and Set End Point 2 to +Vs for 1
second or more, then connect them to ground or no connection.
The encoder will be reset to use the full scale factory default with
the output and position set to the mid-point of the full scale. Now
monitor output voltage or current while rotating. You should observe
a voltage or current change. Now follow the instructions in the
analog section to properly reset the analog minimum and maximum
values.
2
ELECTRICAL SPECIFICATIONS
LINE DRIVER OPTIONS
A. Operating Power (Vin = +Vs)
1. Voltage & Current...............
Analog V Out: .....................12-30VDC; 15mA @ 24V
Analog I Out: ......................15-30VDC; 40mA @ 24V
CANOpen:...........................10-30VDC; 100mA @ 10V, 50mA @24V
DeviceNet:..........................TBD
J1939:................................TBD
SSI: ....................................5-30VDC; 125mA @ 5VDC, 30mA @ 24V
2. Total Current.......................as above plus cable load
B. Output Format
1. Analog Voltage ...................0.5-4.5V; 0-5V; 0.5-9.5V; 0-10V
Current ..............................0-20mA or 4-20mA
2.SSI:.....................................100kHz-2mHz, set by master clock speed
3. CANOpen............................20kBaud to 1mBaud, node 0-127
..........................................Default 125k, node 32 (20H)
4. DeviceNet...........................TBD
BUS OPTIONS
Electrical Specifications
Analog
Input Voltage
12-30V
10-30V
TBD
10-30V
Line Driver
NA
TBD
TBD
Cable Drive Capacity
NA
TBD
Reverse
Voltage
yes
Short
Circuit
Transient
Protection
CANOpen DeviceNet J1939 Profibus
SSI
Units
TBD
10-30V
VDC
TBD
TBD
MAX3294
TBD
TBD
TBD
4000’
[1200m]*
yes
TBD
TBD
TBD
yes
yes
yes
TBD
TBD
TBD
yes
yes
yes
TBD
TBD
TBD
yes
* @100kbaud w/24 AWG, 52.5 pF/meter (16 pF/foot)
C. Direction Counting...................Default up for CCW rotation as viewed
..........................................from the back of the encoder
D. Counts Per Turn.......................4096 - 8192 (12 - 13 bits)
E. Maximum Turns.......................4096 - 32768 (12 - 15 bits)
F. Line Driver Specs:...................See table
G.Connectors:.............................See connector options on page 1
H.Accuracy:................................+/-0.35 deg (+/-21 arc-min)
..........................................Analog Linearity: 0.15%
MECHANICAL
A. Shaft Inertia............................0.25lb-in-sec2 [295 g-cm2 (dyn)]
B.Acceleration............................5000 RPM/Sec. Max
C. Speed:.....................................5000 RPM Max
D. Weight:....................................3 lbs [1.4kg]
E.Vibration..................................30 Gs, 5-2000 Hz (any orientation)
F.Shock......................................300 Gs 6mSec, any orientation
G. Shaft Load...............................50lbs Radial (225N) Max
..........................................65lbs Axial (290N) Max
ENVIRONMENTAL
Solid cast aluminum housing
Operating Temperature:...............-40°C to +85°C.
Finish..........................................Polyurethane enamel, 2 layer
Resists mild acids, bases, salt water &
hydrocarbons
AV30
3
feet
SSI Protocol “S”
Analog Protocol “A”
The SSI Protocol “S” provides a clocked set of data bits that
represent the encoder position (in turns and within 1 turn). Each bit
is output by the encoder as the clock input transitions.
The analog protocol provides a steady-state analog output which
represents the encoder position., over a portion of a turn, or any
portion of a turn plus a number of turns. The factory default is 0-16
turns = min/max output. This can be modified by using the Set
Lower and Set Upper End Point inputs similar to most electronic
cam-setting systems (described below.)
Preferred cable: Twisted pair with individual and overall shield
grounded at one end only. 24 AWG, copper conductor, capacitance
of 52.5 pF/meter (16 pF/foot) terminated in a 100 Ohm resistive
load. Note that resistive losses in long cables may decrease actual
voltage (+Vs) available at the encoder; larger conductors can be
used or the encoder can be powered locally and signal GND brought
through the cable. Maximum transmission speed is limited by cable
length as shown in the figure below.
For more details on SSI, consult Wikipedia:
http://en.wikipedia.org/wiki/Synchronous_Serial_Interface
Preferred cable: Overall shield grounded at one end only. Twisted
pair cable acceptable but not required. Note that resistive losses
in long cables may decrease actual voltage (+Vs) available at the
encoder; larger conductors can be used or the encoder can be
powered locally and signal GND brought through the cable.
Output
05V
010V
0.54.5V
0.59.5V
Signal
Code
“3”
“4”
“7”
“8”
“5”
“6”
Min.
Supply
Voltage
12V
12V
12V
12V
15V
15V
Min.
Load
10k
10k
10k
10k
0
0
ohms
Max.
Load
Any
Any
Any
Any
500
500
ohms
Settle
Time
40Units
20mA 20mA
80mS
Vdc
mS
Min.
Travel
Turns
0.06 turns /22.5 deg.
Turns/
Deg.
Max.
Travel
Turns
65536 turns
Turns
Set Lower End Point 1
(input, ACTIVE HIGH, Falling Edge, 10K resistance)
To set the encoder output to the minimum value at the present
position of rotation, raise Set Lower End Point 1> 10V, < Vs for more
than 1 second. Upon the Set Lower End Point 1 signal returning
to logic zero (falling edge), the encoder output will be set to the
minimum output shown in the output table.
Set Upper End Point 2 (input, ACTIVE HIGH, Falling Edge, 10K
resistance)
To set the encoder output to the maximum value at the present
position of rotation, raise Set Upper End Point 2> 10V, < Vs for more
than 1 second. Upon the Set Upper End Point 2 signal returning
to logic zero (falling edge), the encoder output will be set to the
maximum output shown in the output table.
Set Zero
(input, ACTIVE HIGH, Falling Edge, 10K resistance)
To set the encoder count value to zero, raise Set Zero> 10V, < Vs for
more than 1 second. Upon the Set Zero signal returning to logic zero
(falling edge), the encoder count value will be set to zero.
Set Direction
(input, 10K resistance)
For input logic zero or no connection, the encoder will count UP for
CCW rotation as viewed from the rear end of the encoder.
Reset Upper and Lower End Points to Factory Default (16 turn
scaling)
Raise both Set Lower End Point 1 and Set Upper End Point
2> 10V, < Vs for more than 1 second. Upon both signals returning
to logic zero, the encoder output will be reset to the factory default
scaling of maximum output over 16 turns (only applies to the MT
option, and the present position and the encoder will be set to the
mid-point (8 turns) and 1/2 of the maximum output.
For input logic 1 (>10V, <Vs), the encoder will count DOWN for CCW
rotation as viewed from the rear of the encoder.
AV30
4
AV30 WIRING DIAGRAMS
CONNECTOR
Communication Bus “A”: Analog Pinout
OPTION
“S”
(1x Cable
Entry)
SIGNAL
OPTION
“W”
(Cable)
REF
SIGNAL
GND
BLACK
4
GND
+Vs
RED
8
+Vs
Set Upper End Point 2
WHITE
1
Set Upper End Point 2
Set Lower End Point 1
BROWN
2
Set Lower End Point 1
Analog Out
GREEN
3
Analog In
NC
GRAY
NC
NC
VIOLET
NC
NC
BLUE
NC
NC
YELLOW
NC
NC
ORANGE
NC
* Note: Overall shield required; twisted pair cable not required, pairs shown only for convenience
OPTION
“W”
(Cable)
OPTION
“F”
M23
OPTION
“E”
M12
OPTION
“S”
(1x Cable Entry
Terminal)
SIGNAL
CONNECTOR
Communication Bus “S”: SSI Pinout
REF
SIGNAL
GND
BLACK
12
1
1
GND
+Vs
RED
11
2
2
+Vs
CLK+
GREEN
2
3
3
CLK+
CLK-
YELLOW
1
4
4
CLK-
DAT+
GRAY
3
5
5
DAT+
DAT-
VIOLET
4
6
6
DAT-
SET ZERO
BLUE
9
7
7
SET ZERO
SET DIRECTION
BROWN
8
8
8
SET DIRECTION
NC
ORANGE
5
NC
NC
WHITE
6
NC
NC
7
NC
NC
10
NC
* NOTE: Twisted pair cable required with overall shield; individual pair shielding recommended. Obey pairing as shown
AV30
5
AV30 OUTLINE DRAWINGS
FLANGE OPTION “1”, SHAFT OPTION “C”
“C”
“1”
“S”
AV30
6
AV30 OUTLINE DRAWINGS (Cont’d)
FLANGE OPTION “2”, SHAFT OPTION “T”
“T”
“2”
“W”
AV30
7
AV30 OUTLINE DRAWINGS (Cont’d)
FLANGE OPTION “4”, SHAFT OPTION “B”
“B”
“4”
“F”
AV30
8
AV30 OUTLINE DRAWINGS (Cont’d)
“5”
“H”
“E”
Nidec-Avtron Makes the Most Reliable Encoders in the World
8 9 0 1 E . P L E A S A N T VA L L E Y R O A D • I N D E P E N D E N C E , O H I O 4 4 1 3 1 - 5 5 0 8
T E L E P H O N E : ( 1 ) 2 1 6 - 6 4 2 - 1 2 3 0 • FA X : ( 1 ) 2 1 6 - 6 4 2 - 6 0 3 7
REV: 01/22/16
E - M A I L : t a c h s @ n i d e c - a v t r o n . c o m • W E B : w w w. a v t r o n e n c o d e r s . c o m
AV30
9
Was this manual useful for you? yes no
Thank you for your participation!

* Your assessment is very important for improving the work of artificial intelligence, which forms the content of this project

Download PDF

advertising