Product Description:

The E1101001220 is a rotary incremental encoder produced by Danaher as part of the Dynapar Encoders series. Mounted on a machine shaft, it converts mechanical rotation into digital pulses that a drive or PLC can interpret for motion control. Its bidirectional capability allows the host controller to determine the direction and rate of rotation. The encoder is suitable for conveyors, small actuators, and test stands that require compact feedback devices for closed-loop regulation.

The encoder accepts a supply of 15 VDC ±10%, allowing it to share common low-voltage rails with proximity switches and other control devices. At that voltage, it draws a maximum of 100 mA, which helps limit heat generation inside sealed cabinets. Its resolution is 100 PPR, so each revolution produces 100 primary pulses. When the controller counts the quadrature edges, it can divide 360 degrees of mechanical rotation into 400 increments. A sealed NEMA 12/IP54 enclosure keeps airborne dust and incidental splashes from reaching the electronics, helping preserve pulse fidelity in industrial environments. The rotor supports a maximum speed of 5,000 rpm, making the encoder suitable for small servo or stepper motor shafts without exceeding the bearing speed limit.

Shielded ball bearings protect the code wheel from contaminants while accommodating shaft loads of 1 lb radial and 1 lb axial. These load limits are suitable for flexible couplings rather than rigid belt-driven connections that could place greater stress on the shaft. The encoder includes an 18-inch cable pigtail, allowing the stripped leads to connect directly to terminal blocks. Logic transitions have a rise and fall time of <1 µs at 1,000 pF, providing clean square-wave signals when long cable runs introduce capacitive loads. Continuous operation is permitted within an ambient temperature range of 0 to +70 °C. This operating range allows the encoder to function inside most control enclosures without forced cooling.