Material: Weight: Shaft Loads: Cable: Connector:

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1 Absolute Encoder Type 2RMHF-SSI Absolute Encoder - Ø 24 mm Blind Hollow Shaft - Ø 3 mm to Ø 1/4 inch Singleturn or Multiturn SSI Interface Binary or Gray Code Preset of Zero Position Choice of Counting Direction Enclosure Rating IP 64 or IP 67 Electrical Specifications Encoder Type: Absolute Multiturn 13 bits (8192) points per revolution 12 bits (4096) revolutions Resolution: 16 bits (65536) revolutions 20 bits ( ) revolutions 24 bits ( ) revolutions Supply Voltage: 5 VDC ±5% Typical Current Consumption: Accuracy: ± 0,35ᴼ Interface: Output Code: Electrical Interface: Clock Frequency: Counting Direction: Electrical Protection: Noise Immunity: 30 ma (no load) SSI (Synchronous Serial Interface) Binary or Gray Differential (RS422) or single ended (TTL) 100 khz to 1 MHz Increasing clockwise or increasing counter clockwise seen from shaft end of encoder Reverse polarity and output short circuit protected Tested to EN : 2005 (industrial environments) Electromagnetic compatibility (EMC) and EN : 2007 (residential, commercial, and lightindustrial environments) for Electromagnetic compatibility (EMC) Mechanical Specifications Material: Weight: Bearing Life: Shaft Speed: Starting Torque: Mass Moment of Inertia: Shaft Loads: Housing: Brass Cap: Electroplated Steel or Aluminum Shaft: Brass Encoder: ~ 55 gr (1,94 oz) Cable: 50 gr / meter (1,76 oz / meter) > 1,9 x revolutions at rated load rpm (max.) < 0,005 Nm (0,708 oz-in) at 25 C 1,05 gcm² (1,49 x 10-5 oz-in-sec²) Axial: Radial: Environmental Specifications Operating Temp.: Storage Temp.: Shock: Vibration: Bump: Humidity: Enclosure Rating: Connection Options Cable: Connector: 20 N (4,5 lbs) max. 20 N (4,5 lbs) max. -40 to +85 C -40 to +85 C 100 G / 11 ms Hz / 10 G 10 G / 16 ms (1000 x 3 axis) 98 % RH without condensation IP 64 / Nema 4 (approx.) IP 67 / Nema 6 (approx.) 8 leads (0,05 mm 2, 30 AWG) - Twisted pairs shielded M9 8-pin M12 8-pin Rev November 2016 Scancon Huginsvej Hillerød Denmark p. 1

2 Mechanical Dimensions Standard Cable Gland M9 Connector Rev November 2016 Scancon Huginsvej Hillerød Denmark p. 2

3 M12 Connector Rev November 2016 Scancon Huginsvej Hillerød Denmark p. 3

4 Output Terminations M9 Connector Cable Differential M9/12 Connector Differential Single Ended Signal Wire Color Pin Number CLK+ Pink 1 1 CLK Gray 2 Not Connected DO+ Green 3 3 DO- Yellow 4 Not Connected Direction White 5 5 Preset Brown 6 6 Vsup Red 7 7 GND Blue 8 8 M12 Connector Shield connected to case ground Shield must be connected to connector housing Implementation During the initial set-up and installation of the encoder, it is possible to set the direction of rotation and preset the encoder to zero. Setting of Direction. The connection designated Direction is used to set the direction of rotation. If the line is open or connected to Vsup, the value will increase when the shaft is rotated clockwise when seen from the shaft end. If the line is connected to GND the value will increase when the shaft is rotated counter clockwise when seen from the shaft end. Notice, that the encoder must not be powered when the direction of rotation is set/changed. Notice also, that the encoder will change its position value when the direction of rotation is changed. Preset to Zero The connection designated Preset is used to preset the encoder to zero. If the line is open or connected to Vsup, the encoder will not be preset to zero. If the line is connected to GND, the encoder will be preset to zero. The encoder will be held at zero as long as the line is connected to GND, even though the shaft is turned. The line must be connected to GND for at least 100 msec. for the preset to take effect. The new zero point will be stored permanently in the encoder. Notice, that the encoder must be powered when it is preset to zero. Rev November 2016 Scancon Huginsvej Hillerød Denmark p. 4

5 Ordering Code Example: 2RMHF-SSI 1213 B D S 00 S1 2RMHF-SSI S - - Resolution Code Input/ Hollow Hollow IP Cable Cable Connector Spring Output Shaft Shaft Rating Length Takeout Coupling Dia. Length Multiturn Revolutions 12 bits Revolutions 16 bits Revolutions 20 bits Revolutions 24 bits Steps/rev. 13 bits Singleturn Steps/rev, 13 bits 0013 Code Binary Gray B G IP IP 67 67* Standard Cable Standard is 1 meter 01 Specify length XX No Cable 00 Electrical Interface Differential (RS422) Single Ended (TTL) D S Cable Side (radial) S 3 mm x 13 mm 03-13* 4 mm x 13 mm mm x 13 mm mm x 13 mm /8 in x 13 mm 1/8-13* 3/16 in x 13 mm 3/16-13* 1/4 in x 13 mm 1/4-13* *Not on stock M9 8-pin M9* M12 8-pin M12 No Connector 00 3 holes p/n S1 2 holes p/n S2 2 holes p/n S3 1 holes p/n S4 No spring coupling 00 See Accessories for drawings Rev November 2016 Scancon Huginsvej Hillerød Denmark p. 5