Rotary Encoder IE6B2 New General-purpose Incremental-type Rotary Encoder A line driver output model is available. (Cable extends up to 100 m.) A wide operating voltage range of 5 to 24 VDC (open collector model). Resolution of 2,000 pulses/revolution in 40-mm housing. Phase Z can be adjusted with ease using the origin indicating function. A large load of 3 kgf (29.4 N) in the radial direction and 2 kgf (19.6 N) in the thrust direction is permitted. The load short-circuit and reversed connection protecting circuit assures highly reliable operation. Ordering Information Supply voltage Output configuration Resolution (P/R) Model 5 to 24 VDC Open collector output 10, 20, 30, 40, 50, 60, 100, 200, 300, 360, 400, E6B2-CWZ6C 5 to 12 VDC Voltage output 500, 600, 1,000, 1,200, 1,500, 1,800, 2,000 E6B2-CWZ3E 5 VDC Line driver output E6B2-CWZ1X Accessories (Order Separately) Name Coupling Model E69-C06B (attachment) E69-C68B E69-C610B Flange E69-FBA E69-FBA-02 1 E6B2 E6B2 Specifications Ratings/Characteristics Electrical Item E6B2-CWZ3E E6B2-CWZ6C E6B2-CWZ1X Power supply voltage 5 to 12 VDC (allowable range: 4.75 to 13.2 VDC) 5 to 24 VDC (allowable range: 4.75 to 27.6 VDC) 5 VDC5% Current consumption 100 mA max. 80 mA max. 160 mA max. Resolution 10, 20, 30, 40, 50, 60, 100, 200, 300, 360, 400, 500, 600, 1,000, 1,200, 1,500, 1,800, 2,000 P/R Output phases A, B, and Z (reversible) Output configuration Voltage Open collector Line driver Output capacity Output resistance: 2 kW (residual voltage: 0.4 V max. Isink: 20 mA max.) Applied voltage: 30 VDC max. Isink: 35 mA max. residual voltage: 0.4 V max. (Isink: 35 mA max.) AM26LS31 Output current: High level (Io): -20 mA Low level (Is): 20 mA Output voltage: Vo: 2.5 V min. Vs: 0.5 V max. Phase difference on output 9045 between A and B (1/4T1/8T) Rise and fall times of output 1 ms max. (cable length: 0.5 m; Isink: 10 mA max.) Max. response frequency 100 kHz Insulation resistance 1,000 MW min. (at 500 VDC) between carry parts and case Dielectric strength 500 VAC, 50/60 Hz for 1 min between carry parts and case Note: A, A, B, B, Z, Z 1 ms max. (control output voltage: 5 V; load resistance: 1 kW; cable length: 0.5 m) 0.1 ms max. (cable length: 0.5 m; Io: -20 mA; Is: 20 mA) The maximum electrical response revolution is determined by the resolution and maximum response frequency as follows: Maximum electrical response frequency (rpm) = Maximum response frequency/resolution x 60 This means that the E6B2 Rotary Encoder will not operate electrically if its revolution exceeds the maximum electrical response revolution. Mechanical Item E6B2-CWZ3E E6B2-CWZ6C E6B2-CWZ1X Shaft loading Radial: 3 kgf (29.4 N) Thrust: 2 kgf (19.6 N) Moment of inertia 10 gf $ cm2 (1 x 10-6 kg $ m2) max.; 3 gf $ cm2 (3 x 10-7 kg $ m2) max. at 600 P/R max. Starting torque 10 gf $ cm (980 m N $ m) max. Max. permissible revolution 6,000 rpm Vibration resistance Destruction: 10 to 500 Hz, 150 m/s2 (15G) or 2-m double amplitude for 11 min 3 times each in X, Y, and Z directions Shock resistance Destruction: 1,000 m/s2 (100G) 3 times each in X, Y, and Z directions Weight Approx. 100 g max. (cable length: 0.5 m) Environmental Item E6B2-CWZ3E E6B2-CWZ6C Ambient temperature Operating: -10C to 70C (with no icing) Storage: -25C to 85C (with no icing) Ambient humidity Operating: 35% to 85% (with no condensation) Enclosure ratings IEC IP50 (The E6B2 Rotary Encoder is not watertight or oil resistive.) 2 E6B2-CWZ1X E6B2 E6B2 Operation Output Circuit Diagram E6B2-CWZ6C E6B2-CWZ3E Brown Brown 5 to 24 VDC (allowable range: 4.75 to 27.6 VDC) Black, white, orange E6B2 main circuitry 3.3 W Output signal (Phases A, B, and Z) NPN transistor 35 mA max. 30 VDC max. (Shielded) E6B2 main circuitry 3.3 W Blue 0V Ground 5 to 12 VDC (allowable range: 4.75 to 13.2 VDC) 2 kW Black, white, orange Output signal (Phases A, B, and Z) NPN transistor 20 mA max. Blue (Shielded) 0V Ground E6B2-CWZ1X Brown 5 VDC5% Black, white, orange E6B2 main circuitry Non-reversed output AM26LS31 or equivalent 20 mA max. Black, white, orange (Phases A, B, and Z) (with red stripes) Reversed output (Phases A, B, and Z) Blue 0V Ground (Shielded) 3 E6B2 E6B2 Timing Charts Open Collector Output E6B2-CWZ6C Direction or resolution: CW (As viewed from the end of the shaft) T (360) Direction or resolution: CCW (As viewed from the end of the shaft) T (360) CW ON CCW ON Phase A Phase A OFF OFF 1/4T1/8T (9045) ON ON Phase B Phase B OFF OFF 1/4T1/8T (9045) ON ON Phase Z Phase Z OFF Note: OFF Phase A is 1/41/8T faster than phase B. The ONs in the above timing chart mean that the output transistor is ON and the OFFs mean that the output transistor is OFF. Note: Phase A is 1/41/8T slower than phase B. Voltage Output E6B2-CWZ3E Direction or resolution: CW (As viewed from the end of the shaft) T (360) Direction or resolution: CCW (As viewed from the end of the shaft) CW T (360) H CCW H Phase A Phase A L L 1/4T1/8T (9045) H H Phase B Phase B L L 1/4T1/8T (9045) H H Phase Z Phase Z L Note: L Phase A is 1/41/8T faster than phase B. Note: Phase A is 1/41/8T slower than phase B. Line Driver Output E6B2-CWZ1X Direction or resolution: CW (As viewed from the end of the shaft) T (360) Direction or resolution: CCW (As viewed from the end of the shaft) CW T (360) H Phase A Phase A L L H H Phase B Phase B L H Phase Z L 1/4T1/8T (9045) H L H Phase A H Phase A L L H Phase B H Phase B L L H Phase Z H Phase Z L 4 1/4T1/8T (9045) Phase Z L Note: CCW H L The line driver output circuit is an RS-422A data transmission circuit consisting of two balanced output lines. The relationship between the two output lines is on an equal status. This means that if the level of the signal on a line is H, the level of the signal on the other line is L. The noise-resistive line driver output circuit assures high-speed data transmission. E6B2 E6B2 Input to more than One Counter from Encoder (with Voltage Output) Use the following formula to obtain the number of counters to be connected to a single E6B2 Rotary Encoder. Number of counters (N) = R1 (E-V) +E V x R2 E: V: R2: R1: R2 Voltage supplied to Rotary Encoder Minimum input voltage of the counter Output resistance of the Rotary Encoder Input resistance of the Rotary Encoder +V 0V Encoder output stage R1 Counter R1 Counter Connectable number: N Origin Indication It is easy to adjust the position of phase Z with the origin indication function. The following illustration (on the left-hand side) shows the relationship between phase Z and the origin. Set cut face D to the origin as shown in the illustration (on the right-hand side). Origin of phase Z 120 120 Origin Cut face D 300.2 dia. Output Protection Circuit The E6B2 (open collector model with voltage output) incorporates a circuit preventing the E6B2 from damage due to a short-circuited load and reversed connection. 5 E6B2 E6B2 Dimensions Note: All units are in millimeters unless otherwise indicated. E6B2 15 Three, M3 holes Depth: 7 mm Origin of phase Z 120 5 39 10 120 0 6 -0.012 dia. 40 dia. 1 0 20-0.021 dia. 300.2 dia. 7.5 5-dia. 5-conductor round PVC shielded cord (18 x 12 dia.) Coupling E69-C06B (Included) E69-C68B E69-C610B (16.4) 2.8 24.8 24.8 22 5.5 (11) 6.8 5.5 2.8 Four, 3 hexagon socket heat setscrews 6H8 dia. Note: 6.8 3.5 15 dia. 8 3.5 6H8 dia. 7.1 Four, 4 hexagon socket heat setscrews 8H8 dia. 19 dia. 7.1 3.6 3.6 6H8 dia. 10H8 dia. 22 dia. The coupling is made of glass-reinforced PBT. Flange E69-FBA E69-FBA-02 46 dia. 20.20.1 dia. 42 30 dia. Four, 3.3-dia. holes 330.2 Three, 3.5-dia. holes with 6.5-dia. screw-head holes Four, R3 Three, 3.5-dia. holes with 6.5-dia. screw-head holes 20.2-dia. hole 42 330.15 The flange is made of SPCC t = 3.2 The flange is made of SPCC. t = 3.2 Mounting Bracket 120 Panel 2 Three, M5 20.2-dia. hole 580.2 dia. 18 120 16 9 Two, C1 20 dia. 8 3.1 16 +0.1 0 (5.1) 120 6 Four, 4 hexagon socket heat setscrews E6B2 E6B2 Installation Connection Be sure to connect the external terminals correctly or the E6B2 Rotary Encoder may be damaged. E6B2-CWZ1X Color Terminal Color E6B2-CWZ6C/-CWZ3E Terminal Brown Power supply (+VCC) Black Output phase A Brown Power supply (+VCC) White Output phase B Black Output phase A Orange Output phase Z White Output phase B Black/red stripes Output phase A Orange Output phase Z White/red stripes Output phase B Blue 0 V (common) Orange/red stripes Output phase Z Blue 0 V (common) Note: Receiver: AM26LS32 Conversion from E6B to E6B2 Refer to the following table for conversion from the E6B to the E6B2. E6B E6b2 Resolution: 10 to 600 P/R Resolution: 10 to 2,000 P/R E6B-CWZ3C E6B2-CWZ6C E6B-CWZ3E E6B2-CWZ3E --- E6B2-CWZ1X (line driver output type) Connection with Peripheral Devices Model E6B2-CWZ3E E6B2-CWZ6C E6B2-CWZ1X TTL, LSTTL A A C CMOS A A C Sensor Controller (S3D8) B A C Sensor Controller (S3D2) A A C Direction Sensor Unit (E63-WF-5C) A A C Digital counter (H7BR, H7CR) A A C Digital Tachometer (H7ER) A A C Intelligent Signal Processor (K3TR-NBjjj) B B C Line receiver IC C C A SYSMAC High-speed Counter Unit A A A Position Control Unit B B A Note: A: Possible to connect directly in most cases. B: Possible to connect, but an independent power supply or pull-up resistor will be required. C: Impossible to connect. 7 E6B2 E6B2 Connection Examples Connection to H7CR-CW Counter Features of H7CR DIN-sized (DIN 48) counter incorporating a prescale function converting the measured value to the actual value. E6B2-CWZ6C Synchronized output and indication are available ( area models). Models with a general-purpose six-digit display and four-digit display are available. Black White Blue CP2 0V 6 CP1 8 9 Brown 12 VDC (100 mA) 11 1 48 2 H7CR-CW 48 Connection to K3TR-NBjjj Rotary Intelligent Signal Processor Features of K3TR Each model incorporates a prescale function with an input range of 50 kHz and the measurement accuracy is 0.006%. A variety of outputs including relay, transistor, BCD, linear, and communications outputs are available. 142 48 96 8 E6B2 E6B2 Precautions Refer to the following illustrations when using a standard coupling. Mounting Be careful not to spray water or oil onto the E6B2 Rotary Encoder. The E6B2 Rotary Encoder consists of high-precision components. Handle with utmost care and do not drop the Rotary Encoder, otherwise malfunctioning may result. Do not pull the cord of the E6B2 Rotary Encoder after the E6B2 Rotary Encoder is mounted to a panel. Do not apply any shock to the hollow shaft or the body. When the E6B2 Rotary Encoder is used in reversed operation, pay utmost attention to the mounting direction of the E6B2 Rotary Encoder and the directions of increment and decrement rotation. To match phase Z of the E6B2 Rotary Encoder and the origin of the device to be connected to the E6B2 Rotary Encoder, conform the phase Z output while connecting the device. Be careful enough not to impose an excessive load on the shaft if the shaft connects to a gear. If the Rotary Encoder is mounted with screws, the tightening torque must be approximately 5 kgf $ m (490 mN $ m). If the Rotary Encoder is mounted to a panel, do not pull the cord with more than a force of 3 kgf (29.4 N). Decentering tolerance 0.2 mm max. Declination tolerance 0.2 max. Displacement tolerance in the shaft direction 0.05 mm max. Rotary Encoder When connecting the shaft of the Rotary Encoder with a chain timing belt or gear, connect the chain timing belt or gear with the shaft via the bearing and coupling as shown in the following illustration. 3 kgf (29.4 N) max. Coupling Chain sprocket Bearing Rotary Encoder Mounting plate Cord No shock must be given to the shaft or coupling. Therefore do not hit the shaft or coupling with a hammer when inserting the shaft into the coupling. Mounting Procedure 1. Insert the shaft into the coupling. Do not secure the coupling and shaft with screws at this stage. 2. Secure the Rotary Encoder. Refer to the following table for the maximum insertion length of the shaft into the coupling. E69-C06B E69-C06B Wr Maximum insertion length 5.5 mm 3. Secure the coupling. Model Life of Bearing The following graph shows the life expectancy of the bearing with radial and thrust loads imposed on the bearing. Tightening torque 2.5 kgf $ cm (250 mN $ m) 4. Connect the power and I/O lines. Be sure to turn off the Rotary Encoder when connecting the lines. 5. Turn on the Rotary Encoder and check the output. Ws: 2.0 kgf Life (x 10 9 revolutions) Model If the decentering or declination value exceeds the tolerance, an excessive load imposed on the shaft may damage the Rotary Encoder or shorten the life of the Rotary Encoder. Ws: 2.5 kgf Encoder Ws Shaft Ws: 3.0 kgf Ws: 4.0 kgf Wr: Radial load Ws: Thrust load Radial load Wr (kgf) 9 E6B2 E6B2 Wiring Preventing Miscounting Turn off the Rotary Encoder when wiring. The output circuit may be damaged if the output line contacts with the power source while the Rotary Encoder is turned on. Do not wire power lines or high-tension lines along with the power supply lines of the E6B2 Rotary Encoder or the E6B2 Rotary Encoder may be damaged or malfunction. When extending the cord, select the kind of cord with care by taking the response frequency into consideration because the longer the cord is, the more the residual voltage increases due to the resistance of the cord and the capacitance between the wires. As a result, the waveform will be distorted. We recommend the line driver output type model if the cord needs to be extended. In order to reduce inductive noise, the cord must be as short as possible, especially when the signal is input to an IC. Insert a surge absorber between the power supply terminals if there is any surge. A wrong pulse may be generated when the E6B2 Rotary Encoder is turned on or off. Do not use the connected device for 0.1 s after the E6B2 Rotary Encoder is turned on and for 0.1 s before the E6B2 Rotary Encoder is turned off. Make sure the E6B2 Rotary Encoder is supplied with 5 VDC when a line driver output is used. There will be an approximately 1-V voltage drop if the cable length is 100 m. If the operation of the E6B2 Rotary Encoder is stopped near a signal rising or falling edge, a wrong pulse may be generated, in which case the E6B2 Rotary Encoder will miscount. In such a case, use an increment-decrement counter to prevent miscoutning. VOL tLH Residual output voltage V OL (V) Output rise time t LH ( ms) Cord Extension The rise time of each output waveform will increase when the cord is extended. This affects the phase difference characteristics of phases A and B. The rise time varies with the resistance of the cord and the kind of cord as well as the length of the cord. The residual output voltage will increase according to the length of the cord. Cable length L (m) Conditions Rotary Encoder: E6B2-CWZ6C (2,000 pulses/revolution) Load voltage: 5 VDC Load resistance: 1 kW (The residual output voltages were measured with a load current of 35 mA.) Frequency: 100 kHz Cord: Dedicated cord 10 Extension of Line Driver Output Be sure to use a twisted-pair cable to extend a line driver cord. Use an RS-422A Receiver for the receiver side. The twisted-pair wires as shown in the following illustration are suitable for RS-422A signal transmission. Normal mode noise can be eliminated by twisting the wires because the generated electrical forces on the lines cancel each other. E E Twisted-pair wires E E