Virginia Controls MH-3000 - Page 5

Virginia Controls, LLC MH-3000 User Manual, 1_03C10-VC Page III
5.2 Fuses .................................................................... 27
5.3 12VDC Power Supply ............................................... 28
5.4 Safety Interface Board ............................................. 28
5.4.1 MH4 ................................................................................. 29
5.4.2 MH5 ................................................................................. 29
5.4.3 Phase Monitor .................................................................... 30
5.4.4 Digiset Timer ..................................................................... 31
5.4.5 Bypass Switches ................................................................ 31
5.4.6 Inspection Switches............................................................ 32
5.4.7 Connections ...................................................................... 32
5.5 Microprocessor ....................................................... 33
5.5.1 CPU .................................................................................. 33
5.5.1.1 CPU Battery ................................................................ 34
5.5.1.2 LED Description ........................................................... 35
5.5.1.3 Reset Button ............................................................... 36
5.5.1.4 CPU Connectors ........................................................... 37
5.5.1.5 S2 Slide Switch ........................................................... 39
5.5.2 Input/Output Boards .......................................................... 40
5.5.2.1 Addressing .................................................................. 42
5.5.2.2 Terminal Wiring ........................................................... 42
5.5.2.3 Input/Output LEDs ....................................................... 43
5.5.2.4 Board Status LED ......................................................... 43
5.5.2.5 I/O Bus Communication Connectors ............................... 44
5.5.2.6 Programming Connector ............................................... 44
5.5.2.7 Power Connector ......................................................... 44
5.5.2.8 Jumper Blocks ............................................................. 45
5.6 Motor Control ......................................................... 46
5.6.1 Across-the-line Starting ...................................................... 46
5.6.2 Wye-Delta Starting ............................................................. 47
5.6.3 Solid-State Starting ............................................................ 48
5.7 B.O.R.I.S. .............................................................. 49
6. MH-3000 SCREENS AND DIAGNOSTICS ...... 50
6.1 Run Mode .............................................................. 50
6.1.1 Run Mode Screens ............................................................. 50
6.1.1.1 Banner Screen ............................................................. 51
6.1.2 Show I/O Status ................................................................ 52