KEPCO MBT Series - Manual (Page 9)

MBT 55-7 111609
iii
TABLE OF CONTENTS (Continued)
SECTION PAGE
3.3.5.4.3 Query Indicator........................................................................................................................3-60
3.3.5.4.4 Data.........................................................................................................................................3-60
3.3.5.4.5 Data Separator........................................................................................................................3-60
3.3.5.4.6 Message Unit Separator .........................................................................................................3-60
3.3.5.4.7 Root Specifier..........................................................................................................................3-60
3.3.5.4.8 Message Terminator ...............................................................................................................3-60
3.3.5.5 Understanding The Command Structure ..................................................................................... 3-61
3.3.5.6 Addressing Multiple Power Supplies............................................................................................ 3-61
3.3.5.7 Understanding The Command Structure ..................................................................................... 3-62
3.3.5.8 Program Message Syntax Summary ........................................................................................... 3-63
3.3.5.9 Status Reporting .......................................................................................................................... 3-63
3.3.5.9.1 STATUS REPORTING STRUCTURE ....................................................................................3-63
3.3.5.9.2 Operational Status Register ....................................................................................................3-64
3.3.5.9.3 QUEStionable Status Register................................................................................................3-64
3.3.5.9.4 Multiple Logical Instruments....................................................................................................3-65
3.3.5.10 SCPI Program Example............................................................................................................... 3-67
3.3.6 CIIL Programming.............................................................................................................................. 3-67
SECTION 4 - THEORY OF OPERATION
4.1 Introduction.............................................................................................................................................. 4-1
4.1.1 Voltage Source. ................................................................................................................................. 4-1
4.1.2 Current Source .................................................................................................................................. 4-2
4.1.3 Voltage Mode..................................................................................................................................... 4-2
4.1.4 Current Mode..................................................................................................................................... 4-2
4.1.5 Voltage/Current Reference................................................................................................................ 4-3
4.1.6 A/D Conversion.................................................................................................................................. 4-3
4.1.7 Voltage/Current Comparison Errors .................................................................................................. 4-4
4.1.8 Protective Circuits.............................................................................................................................. 4-4
4.1.8.1 Overvoltage/Overcurrent Protection ............................................................................................ 4-4
4.1.8.2 Overtemperature Protection......................................................................................................... 4-4
4.1.8.3 Power Loss Protection ................................................................................................................. 4-4
4.1.8.4 Path Fault Protection ................................................................................................................... 4-5
4.1.8.5 Crowbar and Turn-off Circuit........................................................................................................ 4-5
4.1.9 Response Time.................................................................................................................................. 4-5
4.1.10 Retention of Programmed Values...................................................................................................... 4-6
4.1.11 Output Enable/Disable and Polarity Reversal Relays — MR, MGR Models ..................................... 4-6
4.1.12 Output Enable/Disable....................................................................................................................... 4-6
4.1.12.1 M, MG Models.............................................................................................................................. 4-6
4.1.12.2 MR, MGR Models ........................................................................................................................ 4-7
4.1.13 Local Control...................................................................................................................................... 4-7
4.1.13.1 Set Output Voltage/Current Limit (Voltage Mode) ....................................................................... 4-7
4.1.13.2 Set Output Current/Voltage Limit (Current Mode)........................................................................ 4-8
4.1.13.3 Set Voltage/Current Mode ........................................................................................................... 4-8
4.1.13.4 Output Enable/Disable ................................................................................................................. 4-8
4.1.13.5 Programmable Parameters.......................................................................................................... 4-8
4.1.13.6 Status........................................................................................................................................... 4-9
4.1.13.7 Menu-selectable Parameters ....................................................................................................... 4-9
4.1.14 Remote Control.................................................................................................................................. 4-9
4.2 MBT Series Block Diagram Circuit Description ....................................................................................... 4-10
4.3 Detailed Circuit Descriptions ................................................................................................................... 4-12
4.3.1 Analog Control Board A1................................................................................................................... 4-13
4.3.2 Relay and Flags Board A2................................................................................................................. 4-14
4.3.3 Digital Control Board A3 .................................................................................................................... 4-14
4.3.4 Auxiliary Supply Board A4 ................................................................................................................. 4-15
4.3.5 Mother Board A5................................................................................................................................ 4-16
4.3.6 A-C Input Circuit and Main D-C Supply (Chassis A6)........................................................................ 4-16
4.3.7 Heat Sink Assembly A7 ..................................................................................................................... 4-16