HS35M 2
INSTALLATION CONSIDERATIONS
See page 3 and drawing on last page for shaft engagement rules.
Shaft may include keyway, but should not be flatted.
The HS35M offers optional Avtron flexible anti-rotation tethers/
brackets which will permit the encoder to tolerate ±0.1” of shaft end
float/axial movement. For larger movement, select tether option “G”
from the table below.
CAUTION
Be careful not to damage clamping fingers of hollow
shaft during handling. Do not tighten clamping collar
before installation onto motor 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.
WARNING
DO NOT USE ANAEROBIC THREAD LOCKER COMPOUNDS
ON THE HS35M. Use of Loctite 222, 242 or other
anaerobic thread locking compounds on the housing can
cause failure of the HS35M housing.
INSTALLATION
Refer to the back page of these instructions for outline and mounting
dimensions. Also available: EU (European Union)
Installation Sheet, Torque Arm Installation Sheet, and Basket Mount
Installation Sheet. NOTE: For metric bore sizes, the encoder is provided
with metric size hardware. For US bore sizes, the encoder is provided
with US size hardware.
1) Disconnect power from equipment and encoder cable.
2) Use caliper gauge to verify motor shaft is proper diameter and
within allowable tolerances: +0.000", -0.0005" [+0.00,
-0.13mm].
3) Clean machine shaft of any dirt and remove any burrs.
4) Use dial indicator gauge to verify the motor shaft Total
Indicated Runout (TIR) <0.002" [0.05mm].
5) Install the anti-rotation bracket to the face of the encoder
using 8-32 screws and lock washers.
6) Loosen clamping collar screws.
NOTE
These screws have factory applied thread locker,
no further thread locker application is required.
6) Optional: for resizing HS35M 1" bore to fit smaller
diameter shafts: Insert shaft sizing insert into encoder. DO
NOT FORCE
.
7) Test Fitting: carefully slide the encoder onto the shaft to verify
fit. Ensure a minimum of 1/8" between encoder and mounting
surface.
DO NOT FORCE
. Encoder should slide on easily. If
the encoder does not fit easily, remove it, verify shaft size, and
check for burrs and shaft damage.
8) Special Note for shaft in HS35M without a shaft insert ONLY:
Remove encoder, apply anti-seize compound to shaft and
reinstall encoder, leaving a minimum of 1/8" between motor
face and encoder (see “Shaft Engagement”).
9) Tighten screws on clamping collar evenly until snug,
then tighten each screw to 35-50 in-lb [4-6 Nm].
DO NOT
USE A STANDARD RIGHT ANGLE WRENCH
. Use only a
T-handle hex wrench or torque wrench with hex bit. Note:
Units shipped with a metric bore size require a 4mm
T-handle hex wrench; units with US size bores, a 3/16"
T-handle hex wrench.
10) For all motor mount options other than 8.5" C-face: Snap the
plastic washer pair together in the mounting slot of the
anti-rotation arm. (See assembly diagram on page 4 for
full details)
11) Secure free end of the anti-rotation bracket to frame using bolt
or T-bolt provided. Use additional washers as needed to install
the bracket without a large deflection or bend.
12) Turn shaft by hand and verify the shaft turns freely and does
not produce excessive runout/wobble of the encoder
(<0.005" TIR [0.13mm], Total Indicator Reading).
13) Connect cable as shown in wiring diagram.
14) Apply power to the encoder.
DESCRIPTION
The Avtron Model XR4F, SMARTSafe™ is a
heavy duty
incremental
encoder for hazardous atmosphere applications (also known
as tachometer or rotary pulse generator). Its output is directly
proportional to shaft position (pulse count) or speed (pulse rate). The
XR4F operates down to zero speed and can be used for both control
and instrumentation applications.
CAUTION
The XR4F is designed for use in hazardous applications
which require protection from gas or dust ignition for
safe operation. Proper selection, wiring and installation
procedures are essential to ensuring safe conditions.
The XR4F is designed for mounting on European B10 style flanges
(85mm flange, 100mm bolt circle), or on a foot mount bracket for
coupling. The XR4F is not recommended for pulley or chain drive
applications.
The XR4F utilizes magnetoresistive sensors. This proven technology
is ideal for rugged environments since it is immune to many
contaminants that cause optical encoders to fail. All of the XR4F
electronics are potted, providing full protection against liquids.
The outputs are protected against short circuits and wiring errors.
Each XR4F has a two-phase output (A, B) 90° out of phase, with
complements (A–, B–), (A Quad B Output). A marker pulse with
complement (Z, Z–) is also present.
The XR4F has a diagnostic package that includes Adaptive Electronics
and a Fault-Check output and red/green LED for local indication. With
this package, the XR4F can maintain itself, and provide an alarm if
there is a problem before the problem causes un scheduled downtime.
ADAPTIVE ELECTRONICS
A perfect duty cycle consists of a waveform whose “high” and
“low” conditions are of the same duration (50%/50%). It is possible
over time for the duty cycle and edge separation to change due
to component drift, temperature changes, or mechanical wear.
The Adaptive Electronics extend the life of the XR4F by constantly
monitoring and correcting duty cycle and edge separation over time.
INSTALLATION
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.
Refer to the following installation drawings for installation
information appropriate for specific hazardous locations:
D52352: ATEX / IECEx Zone 1, 21 (Pending)
D52353: ATEX / IECEx Zone 2, 22 (Pending)
D52354: US and Canada Class I Division 1 Encoder (Attached)
D52355: US and Canada Class I Division 2 (Attached)v
ELECTRICAL
A. Operating Power (Vin)
1. Volts ........................... See Line Driver Options
2. Current ....................... 80mA, no load
B. Output Format ............... A Quad B with marker (A,A–,B,B–,Z,Z–)
C. Signal Type .................... Incremental, Square Wave, 50%
±10% Duty Cycle
D. Direction Sensing .......... Phasing with respect to rotation as
...................................
viewed from the back of the encoder.
Connector options
“A”, “C”, “E”, “G”, “J”,
“M”, “P”, “R”, “S”, “U”,
“V”, & “W” ...................... ØA leads ØB for CW rotation.
Connector options
“B”, “D”, “F”, “H”, “K”,
“N”, “T” ......................... ØA leads ØB for CCW rotation.
E. Transition Separation .... 15% minimum
F. Frequency Range .......... 0 to 165 kHz.
G. PPR ................................ 1 - 3072 standard (for other PPR
needs, Consult Factory)
H. Output ............................ See Line Driver Options
MECHANICAL
A. Acceleration ................... 4,700 RPM/Sec.
B. Speed ............................. 4,700 RPM max. (for higher RPM
needs, Consult Factory)
C. Shaft Diameter ............... 0.500" to 1.125" [12mm to 30mm]
D. Shaft Engagement ...............1.250" to 2.250" [32mm-57mm] End-of-
Shaft*
...................................
*1.750" to 2.250" with sizing
...................................
inserts
Unlimited Thru Shaft
E. Weight ............................ Single: 1.4 lbs. [635 g] approx.
...................................
Dual: 2.0 lbs. [905 g] approx.
ENVIRONMENTAL
A. Enclosure Rating .......... NEMA 13, IP65 (dust and water
tight, not for immersion)
B. Operating Temp. ........... -20° to +85°C
C. Humidity ........................ 98% Non-condensing
D. Shock ............................ 50G, 11 ms Duration
E. Vibration ........................ 5-2000Hz @ 20G
LINE DRIVER OPTIONS
SPECIFICATIONS
Output Options
6
8
9
Output Type
Differential
Line Driver
High Current
Line Driver
Differential
Line Driver 5V
output
Line Driver
7272
4125
7272
Voltage Input (Vin)
5-24VDC
5-15VDC
5-24VDC
Voltage Output
(Vout)
5-24V
5-15V
5V (Fixed)
Reverse
Voltage
Yes
Yes
Yes
Transient
Yes
Yes
Yes
Short Circuit
Yes
Yes
Yes
Protection
Pending