CC770-R RESOLVER TRANSDUCER
The CC770 Resolver Transducer is used as a position feedback device where absolute measurement of screwdown position is required. The top hat configuration couples the resolver package directly to the mill screw eliminating backlash and gearing errors inherent in a screwdown mechanical system.
Both single and dual resolver versions are available. The dual resolver unit contains a fine resolver which is geared 64:1 to the coarse resolver enabling greatly increased accuracy and resolution. The CC770R contains no electronics! It is a rugged electrical device and should be transformer coupled to the control system to avoid any induced noise via control common. The resolver-to-digital electronics are mounted within the control system enclosure.
The CC770R Resolver Transducer is designed for use as a positioning feedback device in mill duty environments. Among its features are:
1. Absolute Measurement - Retains exact position throughout a power shutdown.
2. Eliminates gearing errors in the mechanical system.
3. Long-line Transmissions capability - 1000 feet and greater.
4. Very high degree of noise rejection. Ratio type of signal transmission using a modulated carrier waveform.
The single resolver configuration will support conversion accuracy and resolution to a 12 bit number. The dual resolver configuration will support conversion accuracy and resolution to a 21 bit number.
|Feedback Device||Brushless resolver|
|Frequency Range||400 -10,000 Hz|
|Excitation Voltage (rotor)||7.5 VDC rms|
|Excitation Current (max)||40 mA rms|
|Output Voltage (stator)||8.0 VDC rms|
|Operating Temperature||-55° to 125°|
|Ratio||1.067 +/- 5%|
|Housing|| NEMA 13
Material: 6061 Anodized Aluminum
Seal O Ring
|Fasteners||316 Stainless Steel|
|Shaft Size|| 0.4998" (+.0000,-0005)
316 Stainless steel
Keyway 1/8 " x 1/16
|Shaft Seal||Teflon Graphite|
|Bearing Life||2 x 108 revs at rated shaft loading|
|Shaft Torque|| 0.5 to 1.0 oz-in w/o seal
1.0 to 2.0 oz-in w/ seal
|Shaft Runout||0.0005 T.I.R.|
CC770R = BASIC (Mill Duty) DESIGN
1 = RESOLVER CONFIGURATION
______________ S = Single
______________ D = Dual
2 = GEAR RATIO
______________ 2:1 to 9:1
______________ 10:1 to 39:1
______________ 40:1 to 99:1
______________ 1:1 to 1:7
______________ 1:8 to 1:24
______________ 1:25 to 1:99
3 = MECHANICAL LIMIT SWITCH
______________ "N" = Number of contacts (1, 2 or 3)
4 = SCREW PITCH
______________ "N" = Inches per turn
Dimensions = Inches (mm)
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