Siemens 7SR17 Rho Manual page 310

Chapter 7) 7SR17 Rho Applications Guide
7.3 LEDs .................................................................................................................................. 36
List of Figures
Figure 2-1 Thermal Overload Protection .............................................................................................. 6
Figure 2-2 Summary of Protection Settings Calculation Procedure ...................................................... 7
Figure 2.1-3 Thermal Heating (Cold) Characteristics ........................................................................... 9
Figure 2.1-4 Effect of Hot/Cold Curve Ratio Setting on Thermal Overload Operate Time ................... 10
Figure 2-5 Thermal Overload Protection ............................................................................................ 12
Figure 2.1-6 Start Time Less Than Stall Withstand Time ................................................................... 12
Figure 2.1-7 Start Time Greater Than Locked Rotor Withstand Time ................................................. 13
Figure 2.2-1 Setting Example – Motor Circuit Data ............................................................................ 15
Figure 2.2-2 Summary of Thermal Settings ....................................................................................... 18
Figure 2.5-1 Earth Fault Protection Applications ................................................................................ 21
Figure 2.6-1 Restricted Earth-fault protection................................................................................... 22
Figure 4-1: Trip Circuit Supervision Scheme 1 (H5) ......................................................................... 28
Figure 4-2: Trip Circuit Supervision Scheme 2 (H6) ......................................................................... 29
Figure 4-3: Trip Circuit Supervision Scheme 3 (H7) ......................................................................... 29
Figure 4-4 Close Circuit Supervision Scheme ................................................................................. 30
Figure 4.6-1 - Circuit Breaker Fail ...................................................................................................... 31
Figure 6.1-1 7SR1703 Function Diagrams ......................................................................................... 33
Figure 6.1-2 7SR1706 Function Diagrams ......................................................................................... 33
Figure 7-1 – Binary Input Configurations Providing Compliance with EATS 48-4 Classes
ESI 1 and ESI 2 ............................................................................................................. 35
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