Related Manuals for Gemco 952 Series
Summary of Contents for Gemco 952 Series
- Page 1 Series 952 Linear Displacement Transducers Installation Manual 952 BlueOx Linear Displacement Transducer ABSOLUTE PROCESS CONTROL KNOW WHERE YOU ARE... REGARDLESS...
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Page 2: Table Of Contents
4.2 Signal Connection Application Note .........16 4.3 Quadrature Output Resolution and Speed .......18 4.4 952 QD Wiring Connection ..........18 The GEMCO 952 QD BlueOx is a magnetostrictive 4.5 Features ................19 Linear Displacement Transducer (LDT) for 4.6 952 QD Wiring Diagram ...........20 continuous machine positioning in a variety of 4.7 952 QD Frequency ............23... -
Page 3: Dimension Drawing For All 952 Ldts
1.1: Dimension Drawing for all 952 LDTs Toll Free: 800-635-0289 • Email: apt.sales@ametek.com • Web: www.ametekfactoryautomation.com... -
Page 4: Chapter 2: Installing The Ldt
Chapter 2: Installing the LDT Before installing the LDT, the following should be If the length of the LDT’s rod end is less than 30”, considered: skip to the sub-section: Mounting the Magnet Assembly. • If a mounting bracket is used that is made of Installing Support Brackets ferromagnetic material (a material readily It is recommended that a support bracket be used... -
Page 5: Installing The Ldt In A Hydraulic Cylinder
• The magnet should not be closer than 2.0” Mounting the Magnet Assembly from the base of the LDT’s hex head when the Before mounting the magnet assembly, the following piston rod is fully retracted. In instances where should be considered: space restraints exist, it may be required to countersink the magnet into the piston rod. - Page 6 2. Position the non-ferrous spacer against the 4. Insert the LDT’s rod into the hole of the hydraulic piston face, followed by the magnet, and finally cylinder’s mounting bracket. the chamfered rod bushing. (If the length of the LDT’s rod is 60.0” or longer in length, it is The protective Plug may need to be removed recommended that a chamfered rod bushing be from the hydraulic cylinder before inserting the...
- Page 7 STANDARD 4-HOLE MAGNET 0.5" BORE MINIMUM CABLE NUT O-RING SEAL MAGNET SPACER OPTIONAL ROD BUSHING Figure 2-2: Mounting LDT in a Hydraulic Cylinder 1.18 RECOMMENDED MIN. SPOTFACE DIAMETER SEE NOTE 1 .004 .866 .008 .813 MINIMUM +/-.002 SEE NOTE 2 .094 MAX.
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Page 8: Chapter 3: 952 Wiring (A, Cp, Rs, Vp, Vpi)
Chapter 3: 952 Wiring Connections Once the LDT has been installed, wiring that the splice junction box be free of AC and/or connections can be made. There are two groups of DC transient-producing lines. The shield should connections that will need to be made. They are as be carried through the splice and terminated at the follows: interface device end. -
Page 9: 952 Analog - V0, V1, V4 Or V5 (Voltage)
3.2: 952 Analog - C4/C2 (Current) WARNING: Do not use the blue aluminum cover of the head assembly or connector/cable nut (either a 1 1/16" Amphenol connector or 1 3/16" The 952A-C LDT generates a current output based cable nut) to tighten the LDT within the bracket on position. -
Page 10: 952 Analog Wiring
White/Gray Stripe No Connection Option RB & RC Green Gray/White Stripe Program Input GEMCO Style 952A LDTs are programmable for zero and span. Position output is on pin 4 Connector Option M Pin # Wire Color Function White Power Supply Common... -
Page 11: 952A (Analog)
3.5: 952A (Analog) Differential Input Position Output Customer Supplied Power + Input Power 952A Supply Power Supply Common Position Common - Input Program Input Single Ended Input Position Output Customer Supplied Power Power + Input 952A Supply Power Supply Common Program Input NOTE: 952A-C is current Common... -
Page 12: 952 Vp (Variable Pulse)
3.7: 952 VP (Variable Pulse) output pulse is proportional to the distance from The variable pulse signal interface of the BlueOx the magnet to the hex head. The order of these two digital output series is a pulse width modulated pulses is illustrated in Figure 3-4. -
Page 13: 952 Rs (Start/Stop)
3.8: 952 RS (Start/Stop) duration will follow. The time it takes from the The start/stop signal interface of the BlueOx digital leading edge of the start pulse to the leading edge output series is differential RS-422 output. The of the stop pulse is proportional to the distance maximum cable length for differential LDTs is 1,500 between the magnet to the hex head. -
Page 14: 952 Cp, Rs, Vp Wiring
3.9: 952 CP, RS, VP Wiring PINOUT FOR STANDARD CIRCULAR CONNECTOR AT TRANSDUCER HEAD PIN-C +15 TO +26 VDC POWER SUPPLY PIN-B BLACK POWER SUPPLY COMMON PIN-J PURPLE -15 VDC FOR BIPOLAR POWER SUPPLY* PIN-K GRAY +INTERROGATION PIN-A WHITE -INTERROGATION PIN-F BLUE +GATE... -
Page 15: Setting Zero & Span Position (Analog Only)
3.10: Setting Zero & Span at the connector end of the LDT and a 2.5” Dead area at the other end of the LDT that the magnet Position (Analog LDTs Only) must stay out of at all times. The units come fully programmed from the factory and do not require The 952A-V LDT generates a voltage output based re-programming unless desired. -
Page 16: Chapter 4: 952 Qd Overview
This application note will attempt to clarify the type pulsed type signaling. The GEMCO 952 QD Linear of signals coming out of and going into the 952QD Transducer provides quadrature output directly from quadrature probe. - Page 17 It is important that the customer drive the signal given to these types of applications. It should be levels much greater or lower than the threshold noted the main signal requirements for an RS-422 voltages. Asserting a signal with a voltage level signal is the differential voltage of the + relative to close to the threshold voltage could induce multiple the - signals and not necessarily the voltage level...
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Page 18: Quadrature Output Resolution And Speed
Resolution and Speed not connected at the transducer end. Always observe proper grounding techniques such as The internal resolution of the 952 GEMCO Linear single point grounding and isolating high voltage Transducer is 0.001”. This would be represented (i.e. 120/240 VAC) from low voltage (11-28 VDC to the encoder input device by specifying an cables). -
Page 19: Features
4.5: Features Burst Mode probe then the probe will respond with the current Enables the system to be absolute even though position data. An input signal to the probe will cause data transfer is through incremental method. In a burst of data, representing the absolute position, the event of power failure, the controller can be to be fed back to the controller. -
Page 20: 952 Qd Wiring Diagram
4.6: 952 QD Wiring Diagram Figure 4-2: 952QD Wiring Diagram Drawing E0237900 1080 North Crooks Road, Clawson, MI 48017 • Phone: 248-435-0700... - Page 21 Figure 4-3: Input Signal Connections for 952 QD LDT Drawing E0237700 Toll Free: 800-635-0289 • Email: apt.sales@ametek.com • Web: www.ametekfactoryautomation.com...
- Page 22 Rt is the termination resistor typically used for differential connections. If these termination resistors are not internal to the controller, they should be installed externally at the connector. If these are not specified or included with the con- troller, use 1K Ohm resistors. Figure 4-4: Output Signal Connections for 952 QD LDT Drawing E0237600 1080 North Crooks Road, Clawson, MI 48017 •...
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Page 23: 952 Qd Frequency
4.7: 952 QD Frequency Frequency or Pulse Rate Selecting the proper frequency in the part number and your controller is very important. The internal clocks inside of the 952QD interrogates the LDT and transmits the incremental pulses at a fixed rate of speed. -
Page 24: Appendix A: Troubleshooting
Appendix A: Troubleshooting A.1: Troubleshooting for 952 QD Unipolar Power Supply Check This section will help you to determine if your power supply is adequate for the LDT to operate properly, Troubleshooting describes common problems or if the LDT’s cable has a short or open. that may occur when installing the LDT and offers possible solutions to these problems. - Page 25 enough power or the LDT’s cable possibly has a short/open. Readings of no voltage or minimal voltage (less than 5 volts) may be due to a short/ open in the cable. If reading is not between +11 and +28 VDC, go to step 5. If reading is above +28 VDC, adjust power supply or replace.
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Page 26: Troubleshooting For 952 Analog Ldts
A.2: Troubleshooting for 952 Unipolar Power Supply Check This section will help you to determine if your power Analog LDTs supply is adequate for the LDT to operate properly, or if the LDT’s cable has a short or open. Troubleshooting describes common problems that can occur when installing the LDT and offers In order for the BlueOx to operate properly, the possible solutions to these problems. -
Page 27: A.3: Troubleshooting For 952 Cp, Rs Or Vp Ldts
5. Turn the power supply off. Unipolar Power Supply Check 6. Check the continuity of the individual wires This section will help determine if the power supply of the cable between the power supply and the is adequate for the LDT to operate properly, or if the LDT. - Page 28 5. Turn the power supply off. NOTE: LDTs with potted cable assemblies should 6. Check the continuity of the individual wires of be checked for proper voltage at the power supply the cable between the power supply and the terminals. This cable cannot be removed from the LDT.
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Page 29: Appendix B: Ordering Information
Appendix B: Ordering Information B.1: Analog Part Numbering 952A 0120 Analog BlueOx Output Type V0 = 0 - 10 VDC V1 = 10 - 0 VDC C4 = 4 - 20mA C2 = 20 - 4mA D0 = Differential 0 - 10 VDC* D1 = Differential 4 - 20mA * *Analog differential output is the difference between two magnets. -
Page 30: B.2: Digital Part Numbering
4 feet, rod support bracket(s) and a special magnet should be used. NOTE 2: Specify as magnet separate line item (standard magnet is SD0400800). WARNING: Not for use with a GEMCO interface. 1080 North Crooks Road, Clawson, MI 48017 • Phone: 248-435-0700... -
Page 31: B.3: Quadrature Part Numbering
B.3: Quadrature Part Numbering 952QD 0120 1000 BlueOx with Quadrature Output Stroke in Inches Insert stroke in inches to 0.1 inch. En- ter as a four-place number. Example: 12.0 in stroke entered as 0120. To convert a metric stroke in millimeters, multiply millimeter value by 0.03937 to arrive at inch value. -
Page 32: Appendix C: Specifications
Appendix C: Specifications General Specifications Rod End 316 Stainless Steel, 0.405" (10.29 mm) outer diameter Mounting Hex 316 Stainless Steel, 1.75" (44.45 mm) across flats Mounting Threads 3/4-16 UNF-2B x 1.00" (25.4 mm) with ESNA Jam Nut and O-ring seal Head Assembly Thick Wall Aluminum Cover with Viton O-ring Standard Gasket Seal at the Base and Connector Exit, NEMA 4 (Type 6 optional, consult factory). - Page 33 Analog Specifications Analog Output Drift 10ppm/Degree F (18ppm/DegreeC) Analog Output Voltage Output Minimum Load Resistance: 2Kohm Loading Current Output Maximum Load Resistance: (Vin - 2)/0.02 Output Current: Guaranteed 6mA minimum for voltage units Analog Ripple <1 mV maximum (position output) Update Time 1mS (stroke lengths 1"...
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Page 34: Glossary
Glossary The area designated by the operator on the rod on which the magnet assembly moves. Active Stroke Area An input signal to the probe will cause a burst of data, representing the absolute position to Burst Input be fed to the controller. NOTE: This only applies to the quadrature LDT. A power supply that provides both +15 and -15 VDC. - Page 35 The method used to improve the resolution of a system using a digital LDT. The On time Recirculations of a pulse width output is multiplied by a specified factor (from 1-127). This multiplication provides more counting time for the counter in the customer’s electronics, thus improving the resolution.
- Page 36 Other Products Other Products Copyright 2005 by AMETEK FACTORY AUTOMATION. All Rights Reserved. Made in the USA. MADE IN AMERICA Copyright 2005 by AMETEK FACTORY AUTOMATION. All Rights Reserved. Made in the USA. 1080 N. Crooks Road, Clawson, MI 48017-1097 1080 North Crooks Road, Clawson, MI 48017 952.M4R Phone: 248.435.0700 Toll Free: 800.635.0289...