Basler Electric BE1-79M - Manual (Page 23)

9170100990 Rev N BE1-79M Functional Description i
SECTION 3 • FUNCTIONAL DESCRIPTION
TABLE OF CONTENTS
SECTION 3 • FUNCTIONAL DESCRIPTION ........................................................................................... 3-1
General .................................................................................................................................................. 3-1
Functional Description ........................................................................................................................... 3-1
Contact Sensing ................................................................................................................................. 3-1
Contact Interface ................................................................................................................................ 3-3
Logic Switch ....................................................................................................................................... 3-3
Thumbwheels ..................................................................................................................................... 3-4
Instantaneous Trip Enable (Optional) ................................................................................................ 3-4
Microprocessor ................................................................................................................................... 3-4
Program Monitor ................................................................................................................................. 3-4
Power Loss Detector .......................................................................................................................... 3-4
Outputs ............................................................................................................................................... 3-5
Power Supply ..................................................................................................................................... 3-5
Operational Characteristics .................................................................................................................... 3-6
Power-Up............................................................................................................................................ 3-6
Reset ...................................................................................................................................................... 3-7
Lockout ................................................................................................................................................... 3-7
Reclosing Sequences ......................................................................................................................... 3-8
Reclose Fail ........................................................................................................................................ 3-8
Maximum Cycle .................................................................................................................................. 3-8
Block Load Tap Changer.................................................................................................................... 3-8
Control Outputs and Special Contact Assignments ......................................................................... 3-11
Reclosing Event Memory ..................................................................................................................... 3-11
Purpose ............................................................................................................................................ 3-11
Data Retrieval ................................................................................................................................... 3-12
Data Retention ................................................................................................................................. 3-12
Clearing Stored Data ........................................................................................................................ 3-13
Figures
Figure 3-1. Functional Block Diagram ....................................................................................................... 3-2
Figure 3-2. Contact Sensing Board Link Position ...................................................................................... 3-3
Figure 3-3. Recognition Dropout Timing ................................................................................................... 3-4
Figure 3-4. Power-up Flow Chart .............................................................................................................. 3-7
Figure 3-5. Reclosing Sequences ............................................................................................................. 3-9
Figure 3-6. Reclosing Flow Chart ............................................................................................................ 3-10
Tables
Table 3-1. Function of Sensing Contacts .................................................................................................. 3-1
Table 3-2. Output Contacts ....................................................................................................................... 3-5
Table 3-3. Wide Range Power Supply Voltage Ranges ........................................................................... 3-6
Table 3-4. REM Data Retrieval Modes .................................................................................................... 3-12