Text version of the page 
Text version of the page 
The Resolver Story power is lost and restored, the exact position data will be communicated. In long cable runs a resolver signal
can typically go much further than other technologies.
Resolvers have long been the standard rotary position
method in packaging, primary metals manufacturing,
stamping, automotive, tire and rubber, paper mills and
mining.GEMCO has always been a pioneer in the design and manufacturing of “built to order” resolver packages. We
can mechanically and electrically match any competitor’s
package while improving on the overall design to
enhance the performance, accuracy or durability.
Through our wide range of materials for construction and
precision gear reducers we can extend your sensor’s
life many times over. We offer packages with multiple
sensors and gear reducers in a variety of materials.
We have engineered special resolver packages with
stainless steel housings, oil filled packages, high RPM,
high resolution, resolver/encoder combinations and tach
industrial generators. GEMCO 1986 resolvers have been the preferred source for rugged and accurate rotary positioning in a variety
of industrial applications. The brushless resolver works
on the same principle as a rotary transformer to couple
power in the rotor. The internal brushless resolver has
three separate windings: a reference winding, a SIN
winding and a COS winding. The reference winding is
excited by an AC voltage. The SIN and COS winding are
set 90° apart and provide two different output voltages
whose ratio represent absolute position of the shaft.The advantage of resolver transducers over other rotary position products is that resolvers hold up better in
harsh environments and they are always absolute, so if Stator 1 VoltageStator 2 Voltage90180270360Ratiometric conversion of the two secondary coil voltages
provides absolute position data,
and factors out EMI. Resolver Specifications1986 ABCDEFG & GGHIMD Shaft Loading Axial150 lbs. Max.45 lbs. Max.45 lbs. Max.150 lbs. Max.125 lbs. Max.200 lbs. Max.200 lbs. Max.20 lbs. Max.50 lbs. Max.50 lbs. Max.Shaft Loading Radial100 lbs. Max.45 lbs. Max.45 lbs. Max.100 lbs. Max.75 lbs. Max.400 lbs. Max.400 lbs. Max.40 lbs. Max.100 lbs. Max.500 lbs. Max.EnclosureNEMA 4NEMA 4NEMA 4NEMA 4NEMA 4NEMA 13NEMA 13NEMA 13NEMA 4NEMA 4/13Temperature-40° to 125°C (DeviceNet versions -20° to 70° C)-40° to 125°C (DeviceNet versions -20° to 70° C)-40° to 125°C-40° to 125°C-40° to 125°C-40° to 125°C-40° to 125°C-40° to 125°C-40° to 125°C-40° to 125°CShock50G’s for 11 mSec50G’s for 11 mSec50G’s for 11 mSec50G’s for 11 mSec50G’s for 11 mSec50G’s for 11 mSec50G’s for 11 mSec50G’s for 11 mSec50G’s for 11 mSec50G’s for 11 mSecVibration5 to 2000Hz @ 20G’s5 to 2000Hz @ 20G’s5 to 2000Hz @ 20G’s5 to 2000Hz @ 20G’s5 to 2000Hz @ 20G’s5 to 2000Hz @ 20G’s5 to 2000Hz @ 20G’s5 to 2000Hz @ 20G’s5 to 2000Hz @ 20G’s5 to 2000Hz @ 20G’sRPM5,000 Max.5,000 Max.5,000 Max.5,000 Max.5,000 Max.5,000 Max.5,000 Max.5,000 Max.5,000 Max.5,000 Max.Agency Approval 2 1080 N. Crooks Road • Clawson, MI 48017 • 800-635-0289 • Fax: 248-435-8120
|