Lenord + Bauer GEL 104.2 Programmable Preselect Counter

The Lenord + Bauer GEL 104.2 is a programmable preselect counter engineered for precision measurement and control in industrial automation. It processes incremental pulse signals from encoders to measure position, length, and angle, and executes cutting and dosing operations with user-defined trigger thresholds. The unit combines dual-channel counting inputs with two relay outputs, three programming planes for operational flexibility, and a 6-digit LED display for real-time feedback.

– Technical Specifications

Display & Memory
• 6-digit, 14 mm LED display
• Non-volatile data memory with 10+ year retention during mains failure

Programming Architecture
• Plane 1: Operating parameters (Preselection 1, Preselection 2, Set Value)
• Plane 2: Display configuration, prescaler, decimal point settings
• Plane 3: System operating mode and machine-relevant parameters

Output Configuration
• 2 relay outputs (Out 1, Out 2) with monostable or bistable modes
• Monostable pulse widths: 20 ms, 50 ms, 100 ms, 500 ms, or 1 s
• Bistable operation with electrical or keyboard reset
• Reset via keyboard, electrical input, or programmable auto-reset

Electrical (DC Version)
• Operating voltage: 12–24 V DC (−5% / +10%)
• Reverse voltage protection
• External fuse: 0.25 A slow-blow (12 V); 0.20 A slow-blow (24 V)

Electrical (AC Version)
• Operating voltage: 115 / 230 VAC (50–60 Hz, −10% / +6%)
• External fuse: 63 mA slow-blow (115 VAC); 32 mA slow-blow (230 VAC)

Power & Current
• Maximum power consumption: 4.5 W
• Maximum current (with encoder): 300 mA
• Output: Push-pull power amplifier, 100 mA peak discharge current, sustained short-circuit protection

– Key Features

• Dual count inputs (A, B) for quadrature or pulse-direction encoding
• Control inputs: reset, count gate inhibit, display hold, keylock (terminal 28)
• Encoder compatibility: 5 V or 10–25 V DC incremental encoders
• Signal levels: HTL (S, SN, V, VN, X, XN) and TTL (T, TN, U, UN)
• Parameter lockout via keylock terminal for operational security

– Typical Applications

• Length and position measurement in cutting operations
• Volumetric or weight dosing control
• Production counting and batch control
• Machine tool feedback and process verification

– Compatibility & Integration

The GEL 104.2 integrates with standard incremental encoders and pulse generators over dual counting channels. Relay outputs support direct actuation of solenoids, motor starters, and indicator lamps. Flexible signal input (HTL/TTL) and configurable output modes enable deployment across diverse industrial control architectures.