SEW 822675X

• Encoder Signal Types: Incremental TTL/RS‑422 differential encoder input
• Channel Support: A, /A, B, /B, Z, /Z index‑pulse channels
• Maximum Input Frequency: 1 MHz encoder pulse rate
• Physical Form: Euro‑card plug‑in format for drive internal slot
• Operating Temperature: ‑10 °C to +55 °C
• Storage Temperature: ‑25 °C to +70 °C

Functional Features

• Receives differential incremental encoder feedback from motor shaft encoder
• Signal conditioning and noise filtering for industrial EMC‑prone environments
• Delivers processed position‑and‑speed information to main drive CPU for closed‑loop vector control
• Supports index‑pulse homing function for axis referencing
• Hardware‑level short‑circuit detection for encoder wiring faults

Application Scenarios

• SEW MOVIDRIVE series servo‑drive closed‑loop motion‑control applications
• Conveyors, positioning axes, packaging machinery, material‑handling equipment
• Retrofit upgrade of open‑loop SEW inverters to high‑precision closed‑loop control

Performance Parameters

• Differential input common‑mode noise immunity conforming to IEC 61000‑6‑2
• Pulse‑edge jitter filtering suppresses electromagnetic interference‑caused counting errors

Material Composition

• Substrate: FR‑4 multilayer printed circuit board
• Signal interface: Gold‑plated edge‑connector contacts
• Passive components: Industrial‑grade resistors, capacitors, surge‑suppression diodes

Structural Characteristics

• Standard internal drive‑slot plug‑in board without external enclosure
• Edge‑connector mechanical retention for vibration‑resistant cabinet operation
• On‑board terminal block for encoder cable connection

Working Principle Differential encoder square‑wave signals are received, filtered and level‑converted on‑card; digital counter circuits track pulse counts representing motor angular position; computed actual‑speed and‑position data is transmitted over internal parallel bus to drive main processor for closed‑loop regulation algorithms.

Installation Requirements

• Only install with host drive fully de‑energized
• Insert card fully into designated drive option slot until mechanical latch engages
• Use shielded twisted‑pair encoder cable; connect cable shield to designated board shield terminal
• Maintain cabinet ambient temperature within published operating‑temperature limits

Usage Notes

• Shield termination must be correctly implemented to avoid position drift caused by electromagnetic noise
• Do not hot‑swap the card under powered conditions; hot‑swap will damage interface circuits
• Verify encoder resolution parameter setting in drive firmware matches physical encoder device
• Inspect terminal screw torque after heavy‑vibration commissioning