FEN-31

Description

FEN-31 is an HTL encoder interface module from ABB.

Power and Protection

• Max. Power Consumption: 350 mA at 24 V (Max. combined power of encoders, latches, and cabling 5 W)

• Degree of Protection: IP20

Connectors

• 20-pin socket

• 2 × 7-pin detachable plugs, max 2.5 mm² wire, tightening torque 0.5 N·m

• 9-pin D-Sub

• 6-pin detachable plug, max 1.5 mm² wire, tightening torque 0.3 N·m

HTL Encoder Input (X81 and X82)

• Supply Voltages: +15 V DC ±20% 200 mA (HTL encoders), +24 V DC ±20% 200 mA

• External Power Supply: 10–24 V DC

• Signal Frequency: Up to 300 kHz

• Supported Channels: A, B, and Z

• Signal Levels: “0” < 3.5 V, “1” > 7.5 V

• Supported Encoder Types: Differential Push-Pull, Single-ended Push-Pull, Open Collector, Open Emitter

• Supported Cable Lengths: 300 m differential, 200 m single-ended, 100 m open collector/emitter

• Speed Range: –32768 to 32767 rpm

• Speed Resolution: 0.04 RPM (24 bits)

• Position Resolution: 16 M/rev (24 bits)

• Position Accuracy: 4× pulse count/rev

• Isolation: Isolated together with digital inputs

TTL Encoder Emulation Output (X83)

• Function: Supports TTL incremental encoder emulation, 1–65535 pulses/rev, with reference mark CH A, CH B, CH Z

• Interface: RS-422/485, 500 kHz max

• Max. Cable Length: 100 m

• Speed Range: –32768 to 32767 rpm

• Position Resolution: 4× pulse count/rev

• Isolation: Electrically isolated from HTL input and control board

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