Tachogenerators Solid shaft ø11 mm with EURO flange B10 Housing ø115 mm GTF7 Features –– Open circuit voltage 10...60 mV per rpm –– Solid shaft ø11 mm –– EURO flange B10 –– High signal quality due to patented LongLife technology –– Temperature compensation of tacho voltage as standard –– Low moment of inertia –– No auxiliary energy source required Technical data - electrical ratings Technical data - mechanical design Reversal tolerance ≤0.1 % Size (flange) ø115 mm Linearity tolerance ≤0.15 % Shaft type ø11 mm solid shaft Temperature coefficient ±0.05 %/K (open-circuit) Flange EURO flange B10 Isolation class B Protection DIN EN 60529 IP 55 Calibration tolerance ±5 % Torque 1.5 Ncm Climatic test Humid heat, constant (IEC 60068-2-3, Ca) Materials Housing: stainless steel / plastic Shaft: stainless steel Armature-circuit time-constant <4 µs Operating temperature -30...+130 °C Open-circuit voltage 10...60 mV per rpm Resistance DIN EN 60068-2-6 Vibration 10 g, 10-2000 Hz DIN EN 60068-2-27 Shock 100 g, 6 ms Connection Screw terminal connector GTF 7.08 0.3 W (speed ≥5000 rpm) GTF 7.16 GTF 7.08 0.6 W (speed ≥5000 rpm) Rotor moment of inertia 0.4 kgcm² Weight approx. 0.9 kg GTF 7.16 1 Rotor moment of inertia 0.6 kgcm² Weight approx. 1.1 kg www.baumer.com/motion Subject to modification in technic and design. Errors and omissions excepted. Performance 3/10/2013 Performance Tachogenerators Solid shaft ø11 mm with EURO flange B10 Housing ø115 mm GTF7 Part number GTF7.08L/4 GTF7.16L/4 Open-circuit voltage 10 10 mV per rpm 20 20 mV per rpm 30 30 mV per rpm Open-circuit voltage 40 40 mV per rpm 60 60 mV per rpm Data according to type Open-circuit voltage Type Minimum load required depending on speed range [rpm] Armature resistance Armature inductance 0-3000 0-6000 0-nmax RL [kΩ] RL [kΩ] RL [kΩ] nmax [rpm] R A (20°C) [Ω] LA [mH] ≥5 ≥20 ≥45 ≥40 ≥90 ≥12 ≥48 ≥108 ≥96 ≥215 ≥27 ≥108 ≥243 ≥216 ≥223 9000 9000 9000 9000 6100 60 230 550 410 760 20 80 180 160 360 U0 [mV/rpm] GTF7.08L/410 GTF7.08L/420 GTF7.08L/430 GTF7.16L/440 GTF7.16L/460 Maximum operating speed 10 20 30 40 60 Superimposed ripple (for τRC = 0.3 ms): ≤0.6% (peak-peak) ≤0.25% (rms) Replacement switching diagram U(n) U0 (n) 2A1 U(n) Tachogenerator R RL n -n C 2A2 -U(n) τRC≈R·C LA τA≈ RL Polarity for positive rotating direction: U(n) = U0 (n) 2A1: + RL ≈ U0 (n) for R > R L >> R A R A + RL 2A2: - (VDE) 2 www.baumer.com/motion Subject to modification in technic and design. Errors and omissions excepted. LA 3/10/2013 RA Tachogenerators Solid shaft ø11 mm with EURO flange B10 Housing ø115 mm GTF7 Terminal assignment Accessories View A - Connecting terminal Carbon brushes Polarity for positive direction of rotation Mounting accessories - K 35 Spring disk coupling for solid shaft ø6...12 mm K 50 Spring disk coupling for solid shaft ø11...16 mm K 60 Spring disk coupling for solid shaft ø11...22 mm + Positive rotating direction 3 www.baumer.com/motion 3/10/2013 Subject to modification in technic and design. Errors and omissions excepted. Dimensions Tachogenerators Solid shaft ø11 mm with EURO flange B10 Housing ø115 mm 4 www.baumer.com/motion 3/10/2013 Subject to modification in technic and design. Errors and omissions excepted. GTF7