Bulletin No. ZFG/ZCG-B Drawing No. LP0737 Released 12/10 Tel +1 (717) 767-6511 Fax +1 (717) 764-0839 www.redlion.net MODEL ZCG - SINGLE CHANNEL OUTPUT ROTARY PULSE GENERATOR MODEL ZFG and ZGG - SINGLE CHANNEL OUTPUT LENGTH SENSORS (Replaces MODELS RPGC, LSCS and LSCD respectively) VARIOUS PULSE PER REVOLUTION (PPR) RATES RUGGED CAST ALUMINUM HOUSING Up to 200 PPR for fine, high-resolution counting or 3/8 DIA. STAINLESS STEEL SHAFT precision speed measurement from slow shaft speeds. WIDE INPUT SUPPLY VOLTAGE RANGE & UP TO 10 KHz OUTPUT FREQUENCY LOW CURRENT OPERATION CURRENT SINK OUTPUT EASY INSTALLATION LENGTH SENSORS AVAILABLE WITH: Eliminates air-gap, sensing distance, and beam Single or Dual Ended Shaft alignment procedures of other types of sensing. SEALED PRECISION BALL BEARINGS IDEAL FOR DUSTY, DIRTY ENVIRONMENTS Where Non Contact sensing means are impractical. VARIOUS CABLE LENGTHS AVAILABLE ROTARY PULSE GENERATOR DESCRIPTION The ZCG can be direct-coupled to a machine shaft by means of a flexible The units are rugged, incremental encoders that convert shaft rotation into a bellows, spring or rubber sleeve type coupler, etc., that allows for axial and radial current sinking pulse train. misalignment. They can also be coupled with instrument timing belts and pulleys Internally, a single L.E.D. light source and a photologic sensor in conjunction or gears. The housing may be rigidly face-mounted with the 4, 8-32 threaded with a shaft-mounted, durable, metal-etched encoder disc, provides signal holes. The 3-wire shielded cable exits through a cord connector. accuracy and reliability to 10 KHz. The DC input power supply requirement is a versatile +8 to +35 VDC, and is reverse polarity protected. The NPN Open Collector Transistor Output is current limited to 40 mA and is compatible with LENGTH SENSOR most RLC counters, rate indicators, controllers and accessories. The length sensors are available in both Single Ended Shaft (ZFG) and All units are packaged in a rugged cast aluminum housing with a gasketed, Double Ended Shaft (ZGG) versions, both of which include a Stainless Steel rear aluminum cover. The 3/8 (9.53 mm) diameter heavy duty stainless steel Handle Tube for mounting and 10 feet (3.05 M) of 3-wire shielded cable. When shaft and sealed, lifetime-lubricated precision ball bearings are preloaded for mounted to a Length Sensor Hinge Clamp Assembly (See Model LSAHC001) minimum end play and rated for continuous use up to 6000 RPM. They are and coupled with one or two Measuring Wheels (See Measuring Wheels), a low designed to meet NEMA 13/IP54 environmental requirements. All units are cost, versatile and highly accurate length measurement system can be supplied with 10 feet (3M) of PVC jacketed 3-wire, 22 AWG cable with configured. stranded shield wire and 100% foil shield coverage. Operating Temperature range is -18C to +60C. LENGTH SENSOR MEASUREMENT ACCURACY Factors which affect measurement accuracy include Measuring Wheel accuracy and wear, and material conditions. Ideally, materials which are hard, thin and strong provide good readings. Conversely, soft, thick and elastic ZCG DIMENSIONS In inches (mm) materials can present problems in obtaining true readings. Count or Rate Indicators with input scaling can compensate for Measuring Wheel wear and 0.375 0.99 (25.1) DIA (9.53) material elasticity and compliance errors. In addition, English/Metric FLANGE DIA. SHAFT conversions may also be accomplished. 0.08 1.50 (38.1) DIA. 1.65 (42) (2) 2.75 BOLT CIRCLE (69.9) 8-32 UNC Open Collector Output Wiring x0.30 (7.6) DP. The ZCG, ZFG, and ZGG series of sensors have open collector outputs. An 4 PL., EQUALLY SPACED open collector output brings the uncommitted collector of the encoder switching 0.75 device to the external world. Because the collector element is not associated (19) with the sensor supply voltage, the sensor output collector may be pulled up + 0.022 to external voltages (40 VDC max.) different than the encoder supply voltage. 3.38 (0.56) (85.8) NPN open collector outputs are current sinking devices. An output signal will not be generated unless a pull-up resistor is connected from the open-collector 2.00 (50.8) to the positive side of an external supply. The same supply can be used for 0.05 (1.3) powering the unit and for the pull-up resistor. 1.25 (31.8) LENGTH SENSOR MOUNTING CONSIDERATION 0.13 1. Length Sensors should be mounted so measuring wheel(s) contact ribbon, (3.3) 1.20 2.00 (50.8) strip or web as it passes over a roller. As an alternative, wheel(s) can be (30.5) DIA. MOUNTING driven by roller surface next to material being measured. FACE 2. Note: The weight at the Length Sensor unit provides sufficient traction for accurate operation when mounted, with arm angle from horizontal not o exceeding 30 . 3. Tension on signal cable can cause wheel(s) to lift. Make sure cable is clamped to machine frame near the unit and allow slack. 1 + + + +1.20 EQUIVALENT CIRCUIT & CONNECTIONS 1.65 (30.5) ZFG DIMENSIONS 0.08 (2.03) (41.9) 0.04 MAX. (1.0) In inches (mm) 0.75 LED (19.0) RED REGU- 8 to 35 VDC 50mA max. LATOR This is the side view of the METAL Model ZFG. All other ETCHED dimensions (including the OPTICAL WHT handle tube) are the same DISC OUTPUT: as the Model ZGG. See V = 30 VDC max. OH V = 1V max. 40mA OL below. BLK COMMON BARE STRANDED SHIELD WIRE PHOTOLOGIC DETECTOR CONNECTED TO INSTRUMENT AND PULSE SHAPING CIRCUIT COMMON FOR INCREASED ZGG DIMENSIONS In inches (mm) NOISE IMMUNITY 4.00 (101.6) .08 .04 2.75 (69.9) 1.65 (41.9) (2.03) (1.0) USABLE SHAFT MAX. LENGTH 1.08 (27.4) ORDERING INFORMATION REF., TYP. 2 .75 (19.0) OUTPUT TYP. 2 MODEL NO. DESCRIPTION PPR PULSE RATE PART NUMBER CODE .022 (.56) 3.38 TYP. 2 (85.8) 1 ZCG0001C 2.00 (50.8) 10 ZCG0010C 0.375 (9.52) DIA. SHAFT 12 ZCG0012C Rotary Pulse Generator ZCG 60 ZCG0060C .13 (3.3) (Replaces RPGC) 2.00 (50.8) DIA. 100 ZCG0100C 2.06 (52.3) *120 ZCG0120C *200 ZCG0200C 1 1/Foot ZFG0001C .75 (19) DIA. 10 10/Foot ZFG0010C 2.75 (69.8) 12 1/inch ZFG0012C 20 60/Mt or Yd ZFG0020C 60 60/Foot ZFG0060C Length Sensor ZFG Single Shaft 100 100/Foot ZFG0100C (Replaces LSCS) *120 10/Inch ZFG0120C *200 600/Mt or Yd ZFG0200C .333 1/Mt or Yd ZFG00/3C ELECTRICAL SPECIFICATIONS 3.333 10/Mt or Yd ZFG03/3C 1. SUPPLY VOLTAGE: +8 to +35 VDC (including power supply ripple) 50 33.333 100/Mt or Yd ZFG33/3C mA max. (30 mA typ.) Reverse polarity protected. 2. OUTPUTS: NPN Open Collector Transistor 1 1/Foot ZGG0001C V = 30 VDC max., V = 1 V max. 40 mA OH OL 10 10/Foot ZGG0010C Output current is limited to 40 mA. 12 1/inch ZGG0012C 3. OUTPUT FREQUENCY: Up to 10 KHz 4. CABLE CONNECTIONS: 20 60/Mt or Yd ZGG0020C RED = +VDC BLACK = Common WHITE = NPN O.C. Output. 60 60/Foot ZGG0060C Length Sensor MECHANICAL SPECIFICATIONS ZGG Double Shaft 100 100/Foot ZGG0100C 1. MAXIMUM MECHANICAL SPEED: 6000 RPM (Replaces LSCD) *120 10/Inch ZGG0120C 2. RADIAL SHAFT LOAD: 15 lbs. max. (66.7N) *200 600/Mt or Yd ZGG0200C 3. AXIAL SHAFT LOAD: 15 lbs. max. (66.7N) 4. STARTING TORQUE: 3 oz.-in. (21.2N-mm) .333 1/Mt or Yd ZGG00/3C 5. MOMENT OF INERTIA: -4 2 -3 2 3.333 10/Mt or Yd ZGG03/3C Single Shaft = 2.82 x 10 oz. - in. - sec. (1.99 x 10 N - mm - sec ) -4 2 -3 2 Dual Shaft = 3.09 x 10 oz. - in. - sec. (2.19 x 10 N - mm - sec ) 33.333 100/Mt or Yd ZGG33/3C 6. OPERATING TEMPERATURE: -18C to +60C Flexible Coupling (1 Length) 0.250 - 0.375 RPGFC002 7. WEIGHT (LESS CABLE): Flexible Coupling (1 Length) 0.375 - 0.375 RPGFC003 Rotary Pulse Generator = 15 oz (0.42 Kg) RPGFC Length Sensors = 22 oz (0.62 Kg) Flexible Coupling (1 Length) 0.375 - 0.500 RPGFC004 Flexible Coupling (1 Length) 0.375 - 6 mm RPGFC006 WAVE OUTPUT DIAGRAM Square wave output for models with PPR 1, 10, 12, 20, 60 and * Rotary pulse generators and length sensors with 120 & 200 PPR outputs employ 100. Square wave, 50/50 duty an internal doubling circuit and deliver a fixed 50 sec 20% output pulse at the cycle 10%. leading and trailing edge of a passing slot. Additional doubling in external indicators or circuits may not be applicable. These outputs are derated to 7300 Models that use 1/3 yd. or 1/3 mtr Hz due to internal x2 circuitry. (See Wave Output Diagram) wheels with internal 3 circuits. Notes: 66/33 duty cycle. 1. For 25 foot cable, replace the last character of the part number (C) with D. For 50 foot cable, replace the last character of the part number (C) with E. Models with 120 and 200 PPR 2. Wheels and mounting brackets are sold separately, see Length Sensor Accessories. utilize internal doubling. (50 sec 20% neg. going pulse.) 2 SHAFT