Avtron AV85 Manual de instruções - Página 3

Procurar online ou descarregar pdf Manual de instruções para Conversor de multimédia Avtron AV85. Avtron AV85 10 páginas. 8 1/2 inch c-face mount modular

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Avtron AV85 Manual de instruções
END-OF-SHAFT ROTOR INSTALLATION (OBSOLETE)
The motor shaft must project 0.40" +/­ 0.05" [10.2mm +/­ 1.3mm]
from the motor face including axial end play. Mount the rotors using
the hardware supplied. See accompanying chart. On 180 through 320
frame motors, a roll pin is used to prevent rotation of the rotor on the
motor shaft. Check that the rotor fits on easily without resistance. The
hardware should not be used to force the rotor onto the shaft. Install
the pin in the rotor, then position the rotor on the shaft. Lightly tap into
place. Install the center bolt and flat washer with springlock washer
and tighten. The position of the installed rotor can be verified using
the gauge as shown in figure 1, or later, using the housing alignment
grooves after housing instal lation (Figure 3).
STATOR HOUSING INSTALLATION
The stator housing is attached to the motor using four socket head cap
screws (4) 1/2"­13, locating on a 7.25" bolt circle. Longer bolts (not
included), are required for sandwich installation between a motor and
a brake. Install the four mounting bolts using thread locker and torque
to approximately 30­35 ft­lbs [40­47N­m] using the 3/8" T­handle hex
wrench.
VERIFY ROTOR LOCATION
To ensure the rotor is properly located on the shaft: remove the back
cover if factory­preinstalled, and verify that the outer face of the rotor
is at the same depth as the alignment grooves, using a straight edge
tool. (Figure 3)
CAUTION
Do not use silicone sealants or caulk of any kind on the
motor or encoder face; these can cause misalignment
or sensor scraping damage. The AV85 electronics are
fully sealed; water may enter and leave the rotor area
as needed. A drain hole option is available if frequent
moisture buildup is expected.
COVER INSTALLATION
Covers must not interfere with the motor shaft or rotor. The longest
shaft that can be used without interfering is 0.93" [23.6mm] with a
standard flat cover (Cover Style option "F") and 2.75" [70mm]with
an extended "pie pan" cover (Cover Style option "E"). Through shaft
covers with seals are avail able for other applications (Cover Style
option "T").
EXTENDED COVER MOUNT
(Cover Style option "E")
The extended cover mounts to the encoder housing using quantity 4
#6­32 x 0.31" screws, lock washers, and thread locker.
THRU SHAFT AND FLAT COVER INSTALLATION
(Cover Style option "T" and "F")
NOTE:
Be sure to apply threadlocker to the screws for thru
and flat cover mounting.
The thru­shaft and flat covers mount to the encoder housing using
quantity (4) #10­24 x 0.38" shallow head screws. For thru­shaft
applications with outboard brakes, be sure to use only these screws
and thread locker; washers or thicker screw heads may interfere with
the outboard brake mounting.
V-RING INSTALLATION FOR THRU SHAFT COVERS
(Cover Style option "T")
For thru shaft covers, verify that the shaft passes completely through
the hole in the cover. Apply a small amount of silicone lubricant to
the cover plate around the thru shaft hole. The V­Ring seal should
compress axially when it is pressed against the clean, smooth face
of the cover plate. See Figure 4 for proper installation and V­Ring
compression.
WIRING
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 as the
receiving device, but should not be grounded on both
ends. See note below for Danaher/Northstar wiring.
Refer to the wiring diagrams for specific information on each option.
The AV85 can be wired for single phase or two phase, either with
or without complements, with or without markers. For bidirectional
operation, Phase A channel leads phase B channel for clockwise shaft
rotation as viewed from the anti­drive or accessory end of the motor
(AV85 mounting end).
NOTE
Wiring option "G" provides a pinout compatible with
Northstar
encoders, with a cable shield connection on
TM
pin 10. Note that this option does not ground the shield;
Avtron still recommends grounding the shield at the
drive end of the cable for all wiring options.
CORRECTIVE ACTION FOR PHASE REVERSAL
1)
Remove Power.
2)
Exchange wires on cable, either at encoder cable end,
or at speed controller end (but not both).
a)
Single Ended 2 Phase Wiring (see wiring diagram)
Exchange A and B at the use end of the wires.
b)
Differential 2 Phase Wiring (see wiring diagram)
Exchange either A with A in the phase A pair OR
B with B in the phase B pair but NOT both.
3)
Apply Power.
4)
Verify encoder feedback is correct, using hand rotation
of shaft, or jog mode of the speed controller.
Interconnecting cables specified in the wire selection chart are based
on typical applications. Physical properties of cable such as abrasion,
temperature, tensile strength, solvents, etc., are dictated by the specific
application. General electrical requirements are: strand ed copper,
22 through 16 AWG (Industrial EPIC connector type options can use
14 AWG), each wire pair individually shield ed with braid or foil with
drain wire, .05 uf of maximum total mutual or direct capacitance,
outer sheath insulator. See specifications for maximum cable length.
Strand ed 22 AWG wire should not be used for cable runs great er then
61 meters. If 22 AWG is used with EPIC type connector options the wire
ends should be tinned.
FAULT-CHECK
After power­up and the rotor position is checked by the sensor, the
Fault­Check LED will turn GREEN.
If the adaptive electronics reach their adjustment limit for any reason,
the Fault­Check alarm and LED will notify the drive and operator of
an impending failure. The LED will turn red if the Adaptive Electronics
reach their adjustment limit. This output occurs before an actual
failure, allowing steps to be taken to replace the unit before it causes
unscheduled downtime. Fault­Check annunciation is available as an
"alarm" output through the connector and as an integral LED.
If there is a wiring error, such as an output being shorted to ground
or +V or another output, the Fault­Check LED will turn ORANGE. The
ORANGE LED may blink intermittently, depending on voltage and
severity of short.
TROUBLESHOOTING
If the drive indicates a loss of encoder/tach fault and the AV85 fault­
check LED is not illuminated, check the encoder power supply. If power
is present, check polarity; one indicator of reversed power supply is
that all outputs will be high at the same time. If the drive indicates
encoder fault, but the LED shows GREEN, then check the wiring
between the drive and the encoder. If the wiring appears correct and
in good shape, test the wiring by replacing the AV85. If the new unit
shows GREEN, and the drive still shows encoder loss/tach fault, then
the wiring is faulty and should be repaired or replaced.
AV85
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