Encoders Bulletin 845K Optical Incremental Encoders NEMA Type 1, Size 25, High Performance Specifications Electrical Code Format Quadrature Symmetry Zero Index Channel Power Requirements Square Flange Mount 845K-SADZ14CRY3 Frequency Response Operating Speed (Data) Resolution Description The Bulletin 845K is a size 25 industrial optical incremental encoder. These encoders electronically digitize shaft motion of a rotating element by converting mechanical motion to an electronic digital format. The Bulletin 845K encoders have code disk resolutions up to 5000 pulses per revolution and a signal frequency response of 210 kHz. Output Drive Capability S Optional sink, source, open collector or differential line driver output configurations S 210kHz operating frequency S 24in pigtail cable termination S Input reverse polarity protection S CE marked for all applicable directives 90 22 Channel A leads B CCW 50% 10% 1/2 cycle, gated to channel B Determined by catalog number: 5V DC 5% @ 150mA maximum 8-24V DC @ 150mA maximum Data: 210kHz Zero index: 125kHz (210kHz x 60)/pulses per revolution = RPM or 6000 RPM, whichever is lower Up to 5000 PPR on code disk PNP current source = 20mA NPN current sink = 20mA Differential line driver = 20mA NPN open collector = 20mA Mechanical Starting Torque 0.7Ncm typical [1.0in-oz] Running Torque 0.7Ncm typical [1.0in-oz] Moment of Inertia Slew Speed Shaft Loading Shaft Size Features S Code disk resolution up to 5000 PPR Incremental, 2 channels with zero index 15gcm2 (2.1 x 10-4oz-in-sec2) 6000 RPM Axial 89N [20lbs] (10lbs 5000 PPR) Radial 178N [40lbs] (20lbs 5000 PPR) 9.517mm [3/8in] diameter Environmental Housing Temperature Humidity Shock Vibration Approximate Ship Weight NEMA Type 1 0C to +60C (+32F to +140F)--operating -25C to +90C (-13F to +194F)--storage 85%, noncondensing 50g (11ms duration) 20g (5 to 2000Hz) 0.91kg (2lbs) Accessories Description Page Number Flexible Couplings 7-50 Measuring Wheels 7-51 Servo Clamps 7-51 Mounting Plates 7-55 Differential Encoder Buffer Board 7-58 7-35 Encoders Bulletin 845K Optical Incremental Encoders NEMA Type 1, Size 25, High Performance Selection Guide 845K -- S A H a Z 1 4 CR b c d Y Cable a d Mounting Configuration Resolution Code Description Code D Square Flange CA 50 H English Servo CB 60 CE 64 CF 80 Power Supply CG 100 DB 120 EB 180 CH 200 Description 1 5V DC 5% 2 8-24V DC Unregulated c Output Configuration E Current Source, Current Sink, Open Collector Outputs Description (PPR) b Code 3 CJ 250 CC 254 CW 256 EG 300 Code Description CK 360 2 PNP Current Source CL 400 3 NPN Current Sink CM 500 4 DLD 5V DC RS-422 DW 512 5 NPN Open Collector 24V DC Max E EH 600 LG 900 6 DLD 8-24V DC I CN 1000 E DLD = Differential Line Driver E External pull-up resistor required I Can not be ordered with 5V DC power supply (code 1 above) FW 1024 EL 1200 CD 1250 FL 1600 CP 1800 DN 2000 CS 2048 HL 2400 CR 2500 CY 2540 CT 3600 DR 5000 Wire Pair Red/Bl ck Red/Black White/Bl ck White/Black Bl e/Bl ck Blue/Black Green/Bl ck Green/Black Function Red DC+ Input Black DC Return White Channel A Output Black Not Connected Blue Channel B Output Black Not Connected Green Channel Z Output Black Not Connected Differential Line Driver Outputs Wire Pair Red/Bl ck Red/Black White/Bl ck White/Black Bl e/Bl ck Blue/Black Green/Bl ck Green/Black Flexible Shaft Couplings Angle Parallel Off-Set 7-36 Wire Color Wire Color Function Red DC+ Input Black DC Return White Channel A Output Black Channel A Output Blue Channel B Output Black Channel B Output Green Channel Z Output Black Channel Z Output ATTENTION: Rigidly coupling the encoder shaft to the machine shaft will cause a failure in either the bearings of the encoder or the bearings of the machine shaft. Encoders Bulletin 845K Optical Incremental Encoders NEMA Type 1, Size 25, High Performance Dimensions--mm (inches) Pigtail 610 (24) Typ. 63.5 (2.50) Max 6.35 (0.25) 7.62 (0.300) 21.59/22.86 (0.85/0.90) 9.517 (0.3747) Dia. 31.75 (1.250) Dia. 26.21 (1.032) 5 (0.21) Dia.-- 4 Mounting Holes 26.21 (1.032) 8-32 UNC-2B x 4.6 (0.18) Deep on a 47.6 (1.875) Dia. Bolt Circle, 3 Places--120 Apart 52.40 (2.063) 52.40 (2.063) 66.5 (2.62) Sq. Square Flange Mount Pigtail 610 (24) Typ. 63.5 (2.50) Max 2.54 (0.100) 2.54 (0.100) 7.62 (0.300) 21.59/22.86 (0.85/.90) 9.517 (0.3747) Dia. 31.75 (1.250) Dia. 58.67 (2.31) Dia. 63.50 (2.500) Dia. 8-32 UNC-2B x 4.6 (0.18) Deep on a 47.6 (1.875) Dia. Bolt Circle, 3 Places--120 Apart 65 (2.56) Dia. English Servo Mount 7-37